an engine with 103 cu inches that run for 1690 cc bikes. There are different ways to check the engines idle speed. Mine: Road King Classic, Ultra Limited, Forty Eight. Fat Bob: Which One Make You Stylish, Harley Stage 3 vs. So not sure I want to go that route. Harley Fat Bob vs. Come join the discussion about performance, modifications, troubleshooting, builds, maintenance, classifieds and more! By reducing heat absorption, increasing heat rejection, and redesigning the exhaust system, the Milwaukee-8 engine offers enhanced rider and passenger thermal comfort. We did a few highway pulls in Mexico to see which one is faster. Great horsepower, very flexible in a lot of applications. Improved Fit: A new, slimmer primary drive cover and the low-profile shape of the air cleaner cover provide improved rider legroom around the engine and an easier reach to the ground for many riders. We really like the way the power ramps up. Take note that the lower the speed, the better, and for some vehicles, it should be lower than 1000 rpm. The 103 engine has an oil cooler because it serves a huge role in the engine. I may just give Bean another call when I am ready to go and go with what he suggests. As we mentioned, the compression ratio is 9.2:1 and 9.6:1 for the Harley 96 and 103, respectively. Equivalent to about two to three bike lengths, and 11 percent faster from 60-80 mph in high gear, which is about one to two bike lengths. 33 How many miles is a Harley 103 good for? With the Milwaukee Eight 107, you can accelerate from 0-60 mph 11% quicker and 60-80 mph 11% quicker than the Twin-Cam High Output 103. The Harley Milwaukee Eight 107 and Harley Milwaukee Eight 114 offer strong low-end torque combined with a broad, smooth power curve thats perfect for touring motorcycle riders. We rent Harley-Davidsons to guests from all over the world including Dallas, TX and Los Angeles, CA. Those folks know Harley. Idle speed is lowered from 1000 to 850 rpm. Another thing is also to know if you are running with an oil cooler. WM8-22X JP 2/1/2 S&S Mk45, 2017 M8 107 S&S Cycle 475C JP 2/1/2 S&S Mk45, 2017 M8 107 Cycle-Rama CR-460 JP 2/1/2 S&S Mk45, 2017 M8 107 Andrews M460 JP 2/1/2 S&S Mk45, 2017 M8 107 Jackpot 2/1/2 Jackpot Slip Ons, 2017 M8 107 Completely Stock vs Rushmore 103 Stock, 2022 FLHRXS 114 Wood WM8-777XE Jackpot RTX 2/1, 2022 FLHRXS 114 Wood WM8-22XD Jackpot RTX 2/1, 2022 FLHRXS 114 Wood WM8-22XE Jackpot RTX 2/1, 2022 FLHRXS 114 S&S 475C Jackpot RTX 2/1, 2022 FLHRXS 114 Red Shift RS-472 Jackpot RTX 2/1, 2022 FLHRXS 114 Ward WP-475 Jackpot RTX 2/1, 2022 FLHRXS 114 Feuling 472 Jackpot RTX 2/1, 2022 FLHRXS 114 Star Racing SR 30/30 Jackpot RTX 2/1, 2022 FLHRXS 114 Cycle Rama CR-483 Jackpot RTX 2/1, 2022 FLHRXS 114 Cycle Rama CR-480 Jackpot RTX 2/1, 2021 FLHR WM8-22XE JP 2/1/2 MK45 mufflers, 2020 FLTRU 114 WM8-22X V&H Power Duals S&S MK45, 2020 Breakout 114, WM8-22X V&H Big Radius 2/2, 2021 Softail 114 S&S 55mm intake manifold test, 2020 FLHTK 114 WM8-22XE Jackpot 2/1/2 S&S MK45, 2021 Softail 114 Star 30/30 Jackpot Riot 2/1, 2021 Road Glide 114 WM8-22XD Jackpot 2/1/2, 2021 Road Glide 114 S&S 475 Jackpot 2/1/2, 2021 Road Glide 114 Feuling 472 Jackpot 2/1/2, 2021 Road Glide 114 Star 30/30 Jackpot RTX 2/1, 2021 Road Glide WM8-22XE 114 Jackpot 2/1/2, 2021 Road Glide 114 WM8-22X Jackpot 2/1/2, 2021 Softail 114 S&S 475 Jackpot Riot 2/1, 2021 Softail 114 WM8-22XD Jackpot Riot 2/1, 2021 Low Rider S 114 WM8-22XE Jackpot Riot 2/1, 2017 CVO Street Glide WM8-22XE Jackpot 2/1/2 Rinehart mufflers, 2020 Road Glide 114 Wood WM8-22XD Jackpot 2/1/2, 2020 FLTRXS SE 447 vs SE 462 Jackpot 2/1/2, 2020 FLTRK 114 WM8-22XE Jackpot 2/1/2 Hi Roller mufflers, 2020 Road Glide WM8-22XE Jackpot Riot 2/1, 2020 Road King 114 WM8-22XE Jackpot RTX 2/1, 2019 FLHRS WM8-22XE Jackpot Riot 2/1 vs other short pipe, 2020 FLTRXS 114 stock engine Jackpot Riot 2/1, 2020 Road Glide 114 WM8-22XE Jackpot RTX 2/1, 2020 Road Glide 114 WM8-22X Jackpot RTX 2/1, 2020 Road Glide stock 114 Jackpot RTX 2/1, 2020 Road Glide 114 WM8-22X-E Jackpot 2/1/2 Hi Roller mufflers, 2019 Road Glide 114 WM8-22X-E Jackpot 2/1/2 Hi Roller mufflers, 2020 FLTRK 114 Jackpot 2/1/2 Hi Roller mufflers, 2020 FLTRX 114 Wood WM8-22X Jackpot 2/1/2 Hi Roller mufflers, 2020 FLTRXS 114 stock, FM Improved Stock Power Vision tune, 2020 FLTRXS 114 completely stock, as delivered, 2018 FLHX 114 SE Stage 4 Wood WM8-408 Jackpot 2/1/2 Outlaw mufflers, 2017 FLHX SE Stage 4 kit WM8-408 cam Jackpot 2/1/2 Hi Roller mufflers, 2017 FLHX 114 SE Stage IV WM8-408 Jackpot 2/1/2, 2017 CVO 114 WM8-22X Jackpot 2/1/2 Jackpot mufflers, 2017 CVO 114 WM8-22X Jackpot 2/1/2 Rinehart mufflers, 2017 M8 SE Stage III 114 WM8-222 Jackpot Road & Track 2/1, 2017 M8 CVO 114 WM8-222 JP M8 2/1/2 JP Slip Ons, 2017 M8 SE Stage III 114 WM8-222 JP 2/1/2 S&S Mk45, 2018 Softail 114 M8, Dynojet Power Vision, FM Improved Stock Tune, 2018 Fatboy, 114 Milwaukee Eight engine, completely stock, 2022 Softail Low Rider ST 117 WM8-777XE Contender 2/1, 2022 Low Rider ST 117 Jackpot Riot 2/1 PV tune, 2021 FLTRXSE 117 WM8-22XE Jackpot RTX 2/1, 2021 CVO Road Glide 117 Wood WM8-22XD Jackpot Riot 2/1, 2019 CVO Road Glide 117 WM8-22XE Jackpot 2/1/2 Rinehart mufflers, 2019 CVO Limited WM8-22-XE Jackpot 2/1/2 S&S Grand National mufflers, 18 CVO Street Glide 117 WM8-22X V&H Power Duals & Hi Output mufflers, 2019 CVO Road Glide 117 WM8-22X Jackpot 2/1/2 Hi Roller mufflers, 2018 M8 CVO 117 WM8-22X JP 2/1/2 S&S mufflers, 2017 M8 CVO SE Stage III 117 WM8-222 JP 2/1/2, 18 CVO 117 Stock Head Pipe Jackpot SlipOns (3-3), 18 CVO 117 Stock Head Pipe Jackpot SlipOns (2-3), 18 CVO 117 Stock Head Pipe Jackpot SlipOns (1-3), 2021 Pan America Fuel Moto slip on Power Vision tune, 05 CVO Electra Glide 103 TW6 cam D&D Fatcat 2/1, 2011 FLHX 103 TW-555 V&H Power Duals Twin Slash mufflers, 2012 FLHTK 103 TW-222 V&H Power Duals Rinehart mufflers, 2010 FLHTK 103 TW-222 JP 2/1/2 V&H Monster Oval, 2015 FLHX 103 S&S MR103 El Dorado 2-2 50 State, Rushmore 103 Stock Cams Stock HP Rinehart S/O, Rushmore 103 Stock Cams Stock HP JP 4 S/O, Rushmore 103 Stock Cams Jackpot 2/1/2 JP 4 S/O, Rushmore 103 Stock Cams E-Series S/O (15 discs), Rushmore 103 Stock Cams E-Series S/O (9 discs), Rushmore 103 Stock Cams E-Series 2/1 (16 discs), Rushmore 103 Stock Header Stock S/O Stage 1 A/C, Rushmore 103 Stock Cams Rinehart True Duals, Rushmore 103 Stock Cams JP 2/1/2 JP 4 S/O, 2008 Road King 96 TW-222 S&S head pipe Jackpot mufflers, 2011 FLHX 96 TW-555 Jackpot 2/1/2 Outlaw mufflers, 2008 96 TW-222 Jackpot Street Outlaw mufflers, 2009 FLHX FM 107 stock heads TW-777 Jackpot RTX 2/1, 2013 FLH FM 107 Level B TW-999-6a Jackpot RTX 2/1, 2014 FLHX FM 107 TW-777 Level B heads JP 2/1/2, 2015 FLHTC FM 107 Level B heads TW-777 Jackpot 2/1/2, 2009 FLH FM 107 TW-777 Level B heads Jackpot 2/1/2, 2012 FXD FM 107 Level B Heads TW-777 SE50mm TB D&D 2/1, 2013 FLTRU FM 107 Level B heads TW-777 V&H Power Duals, 2012 FLTRX FM 107 TW-999-6a Level B CNC heads Supertrapp 2/1, 2012 FLHX FM 107 Level B heads TW-999-6a Jackpot RTX 2/1, 2010 FLHR 107 Level B CNC TW-777 Jackpot 2/1/2, 2010 FLHTK FM 107 Level B heads TW-777 Jackpot 2/1/2 Hi Roller mufflers, 2014 FLHX 107 FM Level B CNC TW-777 Jackpot 2/1/2 Hi Roller mufflers, 2011 FM 107 TW-555 Stock Heads Jackpot 2/1, 14 FLHTK FM 107 TW-555 stock heads & TB Jackpot 2/1, 07 FLHT FM 107 TW-555 cams stock heads & TB Jackpot 2/1, 13 FLHT 107 TW-555 stock heads S&S exhaust, 09 Dyna 107 TW-999-6a Level B heads D&D Fatcat 2/1, 13 Dyna FM 107 TW-777 D&D Fat Cat 2/1 SE 50mm TB, 107 11.0:1 TW-8-6 FM Level B SE 50mm V&H 2/1, 107 10.25:1 TW-555 Stock Heads Stock HP RC SlipOns, 107 10.25:1 TW-555 Stock Heads Stock HP RH SlipOns, 107 10.25:1 TW-555 Stock Heads V&H Duals, 107 10.25:1 TW-555 Stock Heads V&H Duals V&H HO S/O, 107 10.25:1 TW-555 Stock Heads JP 2/1/2 LA Chopper, 107 10.25:1 TW-555 Stock Heads JP 2/1/2 V&H SlipOns, 107 10.25:1 TW-555 FM Level B JP XXX 2/1/2 JP SlipOns, 107 10.25:1 TW-555 FM Level B JP 2/1/2 JP SlipOns, 107 10.25:1 TW-555 FM Level B V&H 2/1/2 JackPot S/O, 107 10.25:1 TW-777 Stock Heads V&H Duals V&H SlipOns, 107 10.25:1 TW-777 Stock Heads V&H Duals Crusher S/O, 107 10.25:1 TW-777 Stock Heads Bassani 2/1, 107 10.5:1 TW-777 FM Level B No Cat JP SlipOns, 107 10.5:1 TW-777 FM Level B Stock HP V&H SlipOns, 107 10.5:1 TW-777 FM Level B V&H Duals V&H SlipOns, 107 10.5:1 TW-777 FM Level B V&H Duals Rinehart S/O, 107 10.5:1 TW-777 FM Level B V&H 2/1/2 Bassani S/O, 107 10.5:1 TW-777 FM Level B D&D 2/1 (2-2), 107 10.5:1 TW-777 FM Level B D&D 2/1 (1-2), 107 10.5:1 TW-777 FM Level B SE 50mm V&H Big Radius, 107 10.5:1 TW-777 FM Level B SE 50mm RH Duals, 107 10.50:1 TW-777 FM Level B SE 50mm Rush 2/1, 107 10.75:1 TW-777 Custom Heads SE 50mm Rinehart 2/1, 107 10.5:1 TW-777 FM Level B SE 50mm V&H 2/1 (3-3), 107 10.5:1 TW-777 FM Level B SE 50mm V&H 2/1 (2-3), 107 10.5:1 TW-777 FM Level B SE 50mm V&H 2/1 (1-3), 107 10.5:1 TW-777 FM Level B SE 50mm D&D 2/1, 107 10.50:1 TW -777 FM Level B JP 2/1/2 V&H SlipOns, 107 10.5:1 TW -777 FM Level B JP 2/1/2 V&H SlipOns (2-2), 107 10.5:1 TW -777 FM Level B JP 2/1/2 V&H SlipOns (1-2), 107 10.5:1 TW -777 FM Level B JP 2/1/2 JP SlipOns (6-6), 107 10.5:1 TW -777 FM Level B JP 2/1/2 JP SlipOns (5-6), 107 10.5:1 TW -777 FM Level B JP 2/1/2 JP SlipOns (4-6), 107 10.50:1 TW -777 FM Level B JP 2/1/2 E-Series S/O, 107 10.50:1 TW -777 FM Level B JP 2/1/2 Klockwerks, 107 10.5:1 TW -777 FM Level B T-Body Port JP 2/1/2 V&H SlipOns, 107 10.5:1 TW -777 FM Level B T-Body Port JP 2/1/2 RH SlipOns, 107 10.5:1 TW -777 FM Level B JP 2/1/2 JP SlipOns (3-3), 107 10.5:1 TW -777 FM Level B JP 2/1/2 JP SlipOns (2-3), 107 10.5:1 TW -777 FM Level B JP 2/1/2 JP SlipOns (1-3), 107 10.5:1 TW -777 FM Level B JP 2/1/2 Bassani S/O, 107 10.5:1 TW -777 FM Level B T-Body Port JP 2/1/2 (2-2), 107 10.5:1 TW -777 FM Level B T-Body Port JP 2/1/2 (1-2), 107 10.5:1 TW -777 FM Level B JP 2/1/2 E-Series S/O (2-2), 107 10.5:1 TW -777 FM Level B JP 2/1/2 Bassani S/O, 107 10.5:1 TW -777 FM Level B JP 2/1/2 E-Series S/O (1-2), 107 10.5:1 TW -777 FM Level B HPI 55mm JP 2/1/2 JP SlipOns, 107 10.7:1 FM Level B T-Body Port JP XXX 2/1/2 JP SlipOns, 107 10.5:1 TW-777 FM Level B DBW *SE Ventilator*, 107 10.5:1 TW-777 FM Level B V&H 2/1 (2-2), 107 10.5:1 TW-777 FM Level B V&H 2/1 (1-2), 107 10.5:1 TW-777 FM Level B T-Body Port FBI 2/1, 107 10.5:1 TW-777 FM Level B T-Body V&H HO 2/1, 107 10.5:1 TW-777 FM Level B T-Body Port JP 2/1, 107 10.5:1 TW-777 FM Level B D&D 2/1 (5/5), 107 10.5:1 TW-777 FM Level B D&D 2/1 (4/5), 107 10.5:1 TW-777 FM Level B D&D 2/1 (3/5), 107 10.5:1 TW-777 FM Level B D&D 2/1 (2/5), 107 10.5:1 TW-777 FM Level B D&D 2/1 (1/5), 107 10.75:1 TW-8-6 FM Level B T-Body Port D&D 2/1, 107 10.5:1 TW-777 SE CNC 58mm TBody JP 2/1/2, 107 10.5:1 TW-999-6A FM Level B JP 2/1/2 E-Series S/O, 107 10.5:1 TW-999-6A FM Level B E-Series 2/1, 107 10.5:1 TW-999-6A FM Level B D&D 2/1, 107 10.8:1 TW-888 FM Level B JP XXX 2/1/2 JP SlipOns, 107 11.0:1 TW-999 FM Level B SE 58mm D&D 2/1, 2016 FLHX FM 110 Outlaw TW-999 Jackpot RTX 2/1, 2012 FLHT FM 110 Level B TW-777 S&S duals, 2015 FLHX FM 110 Level B heads TW-777 Jackpot 2/1/2, 2015 FLHX FM 110 Level B heads TW-777 Jackpot 2/1/2, 2016 FLTR 110 Outlaw TW-999 58mm Tb Jackpot RTX 2/1, 2014 FLHX FM 110 TW-777 Level heads B 58mm TB Jackpot 2/1/2, 2016 FLTRXS FM 110 Outlaw TW-999-6 Jackpot RTX 2/1, 2014 FLHTK FM 110 Level B heads TW-777 Jackpot 2/1/2, 2016 FLHX FM 110 Level B CNC TW-999-6a HPI TB V&H Power Duals, 2015 FLTR FM 110 Level B heads TW-777 Jackpot 2/1/2 V&H OS450, 2015 FLHX FM 110 TW-777 Level B CNC heads HPI 58mm TB Jackpot 2/1/2, 2012 FLHX FM 110 Level B heads TW-999-6a HPI 58mm TB D&D 2/1, 2012 FLHTK FM 110 Level B heads S&S 585 cams D&D Fatcat 2/1, 14 FLHX FM 110 Outlaw TW-999 HPI 58mm TB D&D Boarzilla 2/1, 2012 FLHX FM 110 Level B CNC heads TW-777 Jackpot 2/1/2 Outlaw mufflers, 2016 FLHX FM 110 TW-777 HPI 58mm TB Jackpot 2/1/2 Rinehart s/o, 2013 Road Glide FM 110 Level B CNC heads TW-777 E-Series 2/1, 2014 FLHX FM 110 Level B CNC heads TW-999-6a Jackpot Road & Track 2/1, 2015 FLHX FM 110 10.5:1 TW-999-6a Level B heads D&D 2/1, 2011 FLHX FM 110 Level B heads TW-777 Kerker 2/1, 16 FLHX 110 kit Level B heads TW-777 Jackpot 2/1/2 Rush mufflers, FLHTK 110 Drop On 10.5:1 TW-999-6A FM Level B JP 2/1, 110 Drop On 10.5:1 TW-999-6A FM Level B Jackpot Outlaw 2/1, 110 Drop On 10.5:1 TW-777 FM Level B JP SuperDuals, 110 Drop On 10.5:1 TW-999-6A FM Level B JP 2/1 2 MK45s, 110 Outlaw kit TW-999 Jackpot Road & Track 2/1, 110 Drop On 10.5:1 TW-999-6A FM Level B JP Road & Track 2/1, 110 Drop on 10.5:1 TW-777 Level B JP SuperDuals, 110 Drop On 10.5:1 TW-777 FM Level B JP 2/1/2, 110 Drop On 10.5:1 TW-999-6A FM Level B JP 2/1 2, 110 Drop On 10.5:1 TW-999-6A FM Level B JP 2/1, 2011 CVO Limited 113 CNC heads TW-999 Jackpot XXX, 17 Dyna Low Rider S FM 113 CNC heads TW-999-6 Bassani 2/1, 2011 CVO 113 Big bore CNC heads TW-999 Jackpot XXX Hi Rollers, 113 10.75:1 TW-408-6 Stage 1 CVO Heads V&H PD JP 4 S/O, 113 10.8:1 TW-999 FM CVO CNC Heads V&H PD FM E-Series, 113 TW-999 Stage 1 CVO Heads Thunderheader 2/1, 113 11.0:1 TW-999 FM CVO CNC Heads JP XXX 2/1/2 CVO S/O, 113 11.0:1 TW-408G-7 Stage 1 CVO Heads JP XXX 2/1/2 Hooker S/O, 117 11.25:1 TW-999-6 Hybrid Heads D&D 2/1, 117 TW-8-6 Level B JP XXX 2/1/2 JP 4 S/O, 2007 FLHTC S&S T111 crate engine SE mufflers, 2011 FLTR S&S 124HC SE 58mm TB D&D Boarzilla 2/1, 06 Dyna S&S T124HC crate engine D&D Boarzilla, FM 124 TW-9B Stage 1 Heads JPXXX 2/1/2 E-Series S/O, 124 HC S&S Crate Engine JP XXX 2/1/2 JP Pro Tour, 120R 11.0:1 TW-9B-6 FM CNC Heads JP XXX 2/1/2, 2009 CVO Road Glide FM 124 Outlaw Jackpot RTX 2/1, 2012 FLTR FM 124 Outlaw engine HPI TB Jackpot XXX, 2012 CVO Ultra FM 124 Outlaw engine Jackpot RTX 2/1, 2014 FLHX FM 124 HPI 58mm TB Outlaw Jackpot XXX Hi Roller mufflers, 2011 FLTR FM 124 Outlaw Crate Engine SE 58mm TB D&D Boarzilla 2/1, 2016 FLHTC FM 124 Outlaw crate engine SE 58mm TB Jackpot Road & Track 2/1, FM 124 Street Outlaw 58mm JP XXX 2/1/2 JP Slip Ons, FM 124 Street Outlaw 58mm Jackpot Outlaw 2/1, FM 124 Street Outlaw 58mm D&D Boarzilla 2/1, 04 Road King FM 98 Level B heads TW-555-6r, 2006 FLHTC FM 98 kit Level B heads TW-555-6R Jackpot 2/1, 98 TW-555-6R FM Level B Stock HP E-Series S/O, 98 TW-555-6R FM Level B Rinehart True Duals, 98 TW-555-6R FM Level B Stock HP SE Slip Ons, 98 TW-555-6R FM Level B RineHart True Duals, 98 TW-555-6R Stock Heads RieneHart True Duals, 98 TW-6-6R Stock Heads Stock HP Slip Ons, 2015 CVO Road Glide 110 TW-7H Jackpot 2/1/2 Hi Roller mufflers, 2014 FLHRSE 110 Wood TW-7H Jackpot 2/1/2 Hi Rollers, 2013 CVO 110 FM CNC heads TW-777 V&H PowerDuals Rinehart mufflers, 110 CVO TW-777 Stage 1 CVO Heads D&D 2/1, 110 Slim S TW-777 Stage 1 CVO Heads D&D 2/1, 110 CVO TW-222 Stock Heads JP 2/1/2 CFR S/O, 110 CVO Stock Cams Stock Heads Stock Heads Stock HP V&H S/O, 110 CVO TW-777 Stage 1 CVO Heads JP 2/1/2, 110 CVO TW-888 Stage 1 CVO Heads Thunderheader 2/1, 110 CVO Stock Cams Stock Heads JP 2/1/2 JP Pro Touring, 110 CVO TW-777 Stage 1 CVO Heads Jackpots 2/1/2 E-series S/O, 110 CVO TW-777 Stage 1 CVO Heads Jackpot 2/1, Indian 111 Thunderstroke Cat Removed Stage 1 Mufflers & Air Cleaner Stage 2, Indian 111 Thunderstroke Jackpot 2/1/2 Modded Stock Slip Ons, Indian 111 Thunderstroke Jackpot 2/1/2 Rinehart Slip Ons, Indian 111 Thunderstroke Jackpot 2/1/2 Stock Slip Ons, Indian 111 Thunderstroke Stock HP Rinehart Slip Ons, Indian 111 Thunderstroke Completely Stock, Indian Scout Khrome Werks Mufflers S&S Intake, Indian Scout 60 Khrome Werks Mufflers S&S Intake. I have a 2010 Road Glide. Electronic Control Module (ECU) upgrade or re-flash. Not only that he wont let me change the cam thats in the kit so I am stuck with the 255 cam. Fuel Motos take: a very strong cam for low RPM-mid range performance, great low end punch. What a prick. The 103 engine is the second engine of Harley Davidson that uses two cams to drive the valvetrain. Compared with Harley Milwaukee Eight 107 vs. 114_ from 1000 rpm to lowest 850 rpm, the idle speed is reduced. There are 107 engines using precision oil-cooled cylinder heads, available in Street Glides, the Electra Glide Ultra Classic, Road Glides, and Freewheeler trikes as well. Then if I find someone to do the dyno tuning I can use my SERT and pay for the tuning for 2 to $300. As an Amazon Associate, I earn from qualifying purchases. 3500-6000 rpm for 88 103 engines. I know the bike is heavy, but I want it to hold it's own against smaller bikes. According to the company, spark plugs with double plugs per cylinder improve combustion efficiency. Enough with the Pros, and lets talk about the cons of the engine. we wouldnt!! Harley has been one of the best motorbike, Read More Best Shocks for Harley Street Glide: (Top 5 Picks In 2022)Continue, As an Amazon Associate, I earn from qualifying purchases. Excellent curve. Throughout this discussion, I will compare both engines and answer the question of which one can be matched with a minor investment. Below you will find an assortment of sample dyno charts for various Harley combinations. Since you are riding a big bike with a 103 engine, it can cause some serious trouble if you dont check the brake line from time to time. 7 Common Harley Davidson 103 Engine Problems, 13 How To End Up Harley Davidson 103 Engine Noise, 20 Stock Engine Only for 2012 to 2017 Models, 25 4. However, some people say that they only do minimal maintenance within the 80,000 miles to 100,00 miles. I ride pretty aggressive. I do hear good things about the 103" engine and how a hefty bike like the E-Glide is aided by the extra cubes. Fat Boy: Which Makes You Special?Continue, As an Amazon Associate, I earn from qualifying purchases. This engine proves its longevity with this. Reduced Vibration: The rubber-mounted Milwaukee-Eight engine features a single internal counter balancer that cancels 75 percent of primary vibration at idle for a more-refined feel and more-comfortable experience for rider and passengers while retaining the classic character of Harley V-Twin engines. He wont honor the warranty with the headwork. It will always depend on how you use your bike; this answer is if you properly take care of your bike. Electronic Sequential Port Fuel Injection. You can see the solution in the middle part of the article. In this shootout we tested an assortment of bolt in camshafts from various manufacturers in the Harley Davidson Twin Cam 103 engine. (bore/hone) you can have a 103". The oil cooler decreases the chance of overheating; that is why it is always essential to have an engine with an oil cooler. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. These cookies track visitors across websites and collect information to provide customized ads. Only change I made per Bean's advice is switching 255's to SE204's. This engine is potent because it can climb hills, or you can ride with entire luggage at the back. Jul 9, 2012. prodrag1320 said: 100/100 is super easy on a 103"er,105/110 is also very easy and still be a VERY reliable & ride.getting into the 110+ isnt a big deal,but gets into some issues that most riders dont want to deal with.my suggestions: set compresion @ 10.25-1. This is very important because it can tell you if the engine has a leak and need some repair. Here is the list of the cams tested in this shootout: Each of the camshafts in our test offered measurable performance increases over the stock camshafts and each set of cams has a bit of its own personality. There are some issues concerning that the 103 engine overheats and can burn the riders. Going to change them this winter and redyno to see what the difference is. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. Power starts before 2000 RPM. Equivalent to about two to three bike lengths, and 11 percent faster from 60-80 mph in high gear, which is about one to two bike lengths. JavaScript is disabled. I know I sound like a n00b here, and that's fine with me. The cookie is used to store the user consent for the cookies in the category "Other. Fuel Motos take: great cam for low-mid power yet very broad, builds torque very early and has great response. Bore Stock Jugs to 103", SE Pistons, Andrews or SE CAM for down low Torque, Heads done by Bean. Our Low Rider ST Gets the Galfer Treatment, Roland Sands Designs New Sector Risers Installed, Andrew Hines Perfect Reaction Results in 46th Career Win | NHRA Drag Racing. Michelin Commander 2 vs. 3 Motorcycle Tire: The Epic Battle! 551 cams are not recommended for compression ratios of 10:1 or greater. Harley-Davidson Evo vs. Twin Cams: Which Is The Best Cam? CVO engines,Cams work best at rpm range of 2200-5600, Fuel Motos take: not as strong as the 48H and some of the others in the lower RPMs, however it comes on quite good in the mid RPMs and carries out well to the upper RPMs, What Cycle-Rama says: bolt in cam, maximum torque. You will lose MPG low 37 to 42 roughly depends on your riding style.. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. It is one of the more manageable parts to find, so replacing it is not hard. Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. Still maintains reasonable low RPM performance. Archived post. Harley Davidson bikes usually have this feature. The CVO models will now be equipped with a 114 ci (1870 cc) motor.The eight-valve motor was a complete redesign with new cases, cylinders, heads, and flywheel. While both are reliable choices for riders, there are some key differences between them that should be taken into . What S&S says: bolt-in cam set designed for stock or mildly modified touring bikes. Sorry I didn't mean to step on anybody's toes. Scratch that ideadealer is being a prick about the headwork. . It depends on the whole package and it's hard to say. New Milwaukee-Eight engines will power every 2017 Harley-Davidson Touring and Trike motorcycle model. In its first release of the 2017 motorcycle certification data, the U.S. I would attribute that to dyno differences, but who knows. According to my calculator doing a 107 verses a 103 should cost pretty close to the same price buying the part separately with the 107 pistons slightly more. Not an aggressive rider but want that extra down low when riding alone or two up. Ok. Or maybe if you are experiencing it now, this information might help you solve the problems because we will also give answers to these problems. It does not store any personal data. All Rights Reserved. Is that something that I will notice with older engine? Baggers Only: At least, for now. Dyna and Softail models will keep the Twin Cam motor. I guess thats the whole reason for the post. Been looking at Dyno Sheets. Although weighing the same as its predecessor, both models of the Milwaukee-Eight increase in acceleration by 10% (0-60 for the 107 vs the 103) and 8% (0-60 for the 114 vs. the 110). A forum community dedicated to all Harley-Davidson model owners and enthusiasts. When it comes to speed, this engine can go up to 100 to 120 mph. Same cams for either of these, or does the 107 take a little more cam for the same purpose . Nov 20, 2017. 2020 FLTRXS FM 128 WM8-777XE Jackpot RTX 2/1, 2020 FLTRXSE FM 128 WM8-22XD stock heads Jackpot Riot 2/1, 2021 Low Rider S FM 128 WM8-408 Jackpot Riot 2/1, 2022 Road Glide FM 128 WM8-22XE Jackpot RTX 2/1, 2020 Road Glide FM 131 Ward +1 WM8-9960 Jackpot RTX 2/1, 2021 FLHXS FM 128 WM8-22XE Jackpot 2/1/2, 2020 Low Rider S FM 128 WM8-22XD Jackpot Riot 2/1, 2021 FLTRXS SE 131 WM8-77x Jackpot RTX 2/1, 2021 Road Glide FM 128 WM8-408 Jackpot Riot 2/1, 2020 Road King FM 128 WM8-22XE Jackpot RTX 2/1, 2020 FLTRXSE FM 128 Level A heads WM8-77X Jackpot XXX, 2019 FLHX FM 128 WM8-22XE stock heads & TB Jackpot 2/1/2, 2017 FLHXSE FM 128 WM8-22XD stock heads D&D 2/1, 2021 FLHX FM 128 WM8-408 stock heads Jackpot RTX 2/1, 2021 FLHX FM 128 WM8-22XE Stock heads Jackpot RTX 2/1, 2019 Road Glide FM 128 Ward 580 Jackpot RTX 2/1, 2020 Road Glide FM 131 Ward +1 heads WM8-9960 Jackpot RTX 2/1, 2022 CVO Road Glide FM 128 Level A Heads WM8-408 Jackpot RTX 2/1, 2018 FLTR SE 131 Ward WP-580 Jackpot RTX 2/1, 2021 FLTRXSE FM 128 Level A heads WM8-408 HPI 62mm Jackpot RTX 2/1, 2017 FLHX FM 124 WM8-22XE V&H Power Duals, 2019 FLTRXSE FM 128 10.75 WM8-22XE Jackpot 2/1/2, 2018 FLTRXS FM 128 Level A heads Ward WP-580 Jackpot 2/1, 2019 FLTRXSE FM 131 WM8-9FX60 Ward +1 heads Jackpot RTX 2/1, 2021 FLTRXSE FM 128 Level A heads WM8-408 Jackpot XXX, 2017 FLTR FM 124 WM8-408 Level A heads Jackpot RTX 2/1, 2019 FLTR FM 128 10.75 WM8-22XD Jackpot Riot 2/1, 2020 Softail FM 131 WM8-9FX Ward heads Jackpot Riot 2/1, 2020 FLTR FM 128 WM8-22XD Jackpot RTX 2/1, 2020 FLTRXSE FM 128 WM8-408 Jackpot XXX Rinehart, 2021 FLHT SE 119 Stage III S&S 465 S&S Sidewinder 2/1, 2021 Road Glide FM 128 WM8-408 Level A Heads Jackpot RTX 2/1, 2021 Road Glide FM 128 WM8-22XE Stock heads & TB Jackpot RTX 2/1, 2021 Road Glide FM 128 WM8-22XE stock heads & TB JP 2/1/2, 2020 FLTR FM 128 WM8-22XE Jackpot Riot 2/1, 2020 FLHR FM 128 WM8-77X Level A heads KW 2/2, 2019 FLHT FM 124 WM8-22X S&S Sidewinder 2/1, 2017 FLTR FM 124 Level B heads WM8-9960 Jackpot RTX 2/1, 2020 FLHXS 128 WM8-22XD stock heads & TB Jackpot 2/1/2, 2019 CVO FM 128 CR-483 stock heads SE 64mm TB D&D 2/1, 2020 FLTRXS FM 128 WM8-22XE Stock heads Jackpot 2/1/2 Rinehart, 2019 Road King FM 131 S&S 590 Ward heads Jackpot Riot 2/1, 2019 FLTRXS 128 Wood WM8-22XD Jackpot RTX 2/1, 2020 CVO Limited FM 131 WM8-9FX Ward +1 heads Jackpot RTX 2/1, 2020 FLTRU FM 128 Level A Heads WM8-408 SE 64mm TB Jackpot 2/1, 2019 FLTR FM 128 WM8-22XE Stock heads 64mm TB Jackpot 2/1/2, 2019 FLTR FM 120 Level B CNC WM8-9960 SE 64mm TB Jackpot Riot 2/1, 2017 FLHRS FM 124 WM8-408 Level A Heads Jackpot Riot 2/1, 2020 FLHX FM 124 WM8-22XE SE 64mm TB Jackpot RTX 2/1, 2017 FLTR FM 124 WM8-22XE stock heads S&S manifold Jackpot RTX 2/1, 2020 Low Rider S FM 128 WM8-22X Stock heads & TB D&D 2/1, 2019 FLTRU FM 128 RS-468 SE 64mm TB Jackpot RTX 2/1, 2020 Road Glide SE 131 WM8-77X Jackpot RTX 2/1, 2018 Road Glide FM 124 WM8-22XD HPI 62mm TB Jackpot Riot 2/1, 2018 FLHX FM 124 WM8-22XD SE 64mm TB Jackpot RTX 2/1, 2019 Road King FM 128 Wood WM8-22XD Jackpot 2/1/2 S&S mufflers, 2020 Road Glide SE 131 Crate engine Wood WM8-77X Jackpot RTX 2/1, 2020 FLTRXS FM 131 WM8-9FX Ward +1 Heads SE 64mm TB Jackpot Riot 2/1, 2019 FLHTK FM 128 WM8-408 Level A CNC SE 64mm TB Jackpot RTX 2/1, 2019 FLTR FM 128 WM8-77X SE FM Level A CNC heads SE 64mm TB Bassani 2/1, 2019 FLHRS FM 128 WM8-22XE stock heads 64mm TB Jackpot 2/1/2, 2019 FLTRXS FM 128 WM8-22XE stock heads SE 64mm TB Jackpot Riot 2/1, 2020 FLHTK FM 128 Wood WM8-22XE stock heads & TB Jackpot 2/1/2, 2018 FLHX FM 124 WM8-408 SE heads & TB D&D 2/1, 2017 FLHX FM 124 WM8-22XE cam stock heads & TB TB Jackpot 2/1/2, 2019 FLXH FM 128 WM8-22XE stock heads SE64mm TB Jackpot 2/1/2, 2019 FLHX 128 WM8-408 Level A CNC heads SE 64mm TB Jackpot XXX Rinehart s/o, 2019 FLTRXS FM 128 WM8-408 FM Level A CNC SE 64mm TB Jackpot XXX S&S MK45, 2018 FLHR FM 124 WM8-408 Level A CNC SE 64mm Jackpot Riot 2/1, 2018 FLTRXSE FM 131 WM8-9FX Ward +1 heads SE 64mm TB Jackpot XXX, 2020 FLHTK FM 128 Level A heads WM8-408 cam Jackpot RTX 2/1, 2018 Road Glide FM 124 Level A Heads WM8-9FX Jackpot RTX 2/1, 2019 FLTRXSE FM 128 11.0 Level A heads WM8-77X SE 64mm TB Jackpot RTX 2/1, 2019 FLHX FM 128 Level A heads WM8-408 Jackpot RTX 2/1, 2018 FLHTK FM 128 10.75 WM8-22XE stock heads & TB Jackpot 2/1/2, 2019 FLHXSE FM 128 10.75 S&S 475 Stock Heads SE 64mm TB w/Ward manifold, 2018 FLHX FM 124 10.75:1 WM8-22XE stock heads & TB Jackpot SP, 2019 FLHX FM 128 WM8-22XE stock heads SE 64mm TB Jackpot 2/1/2, 2017 FLTRS FM 124 WM8-22XE stock heads & TB Jackpot 2/1/2 Hi Roller mufflers, 2020 Road Glide FM 128 Level A heads WM8-408 SE 64mm TB D&D Billet Cat, 2019 FLHX FM 124 WM8-22XE Stock TB V&H Pro Pipe 2/1, 2020 FLTRU FM 128 Level A CNC heads WM8-408 SE 64mm TB Jackpot RTX 2/1, 2019 FLHTK FM 128 11.0 Level A heads WM8-408 SE64mm TB Jackpot RTX 2/1, 2020 FLHX 124 WM8-408 Level A CNC heads SE 64mm TB Jackpot XXX, 2018 CVO Limited 128 WM8-22XE Stock Heads 64mm TB Jackpot 2/1/2, 2019 Road King FM 128 Level A heads WM8-408 Bassani 2/1, 2020 FLHX FM 128 Level B heads WM8-4860 SE 64mm TB Jackpot RTX 2/1, 2017 FLHTK FM 124 WM8-408 Level A heads SE 64mm TB Jackpot XXX, 2020 FLTRXS FM 128 Level B heads WM8-408 64mm TB Jackpot RTX 2/1, 2018 FLTR FM 124 Level B heads WM8-9960 SE64mm TB Jackpot RTX 2/1, 2017 FLHX 124 10.75:1 S&S 475 stock heads & TB Jackpot 2/1/2 MK45, 2019 CVO Road Glide 128 10.75:1 WM8-22X-E Stock Heads 64mm TB PowerDuals, 2019 Road Glide FM 128 11.0 WM8-408 Level A heads SE 64mm TB Jackpot XXX, 2018 FLHX 128 10.75:1 RS-468 Stock Heads 64mm TB Rinehart Slimline duals, 2018 FLHTK 124 10.75:1 WM8-22X-E Stock Heads & TB Jackpot 2/1/2 S&S MK45, 2017 FLHX 124 Feuling 521 HPI 62mm TB Krome Werks 2/1, 2019 Softail 124 WM8-222 stock heads & TB D&D Fatcat 2/1, 2020 FLHXS 128 10.75 WM8-22x Stock heads & TB Jackpot 2/1/2 & Hi Rollers, 2020 FLTRK 128 11.0:1 Level A Heads WM8-408 SE 64mm TB D&D Billet Cat 2/1, 2020 FLTRK 128 11.0:1 Level A Heads WM8-408 SE 64mm TB Jackpot XXX, 2017 FLHTK FM 124 S&S 475 Stock heads & TB Jackpot 2/1/2 MK45, 2017 FLHX FM 124 11.0 WM8-408 Level A heads SE 64mm TB D&D Billetcat 2/1, 2017 FLHTK FM 124 11.0:1 WM8-408 Stock heads SE 64mm TB Jackpot 2/1/2, 2020 FLTRXS SE 131 Stage IV SE Street Cannons SE Pro Street Tuner, 2020 Softail Low Rider S FM 128 11.5:1 WM8-9F60 FM Level B Heads, 2018 FLHR FM 124 10.75:1 WM8-22x Jackpot 2/1, 2017 FLHXSE 128 11.0:1 WM8-408 Stock Heads Jackpot 2/1/2 Hi Roller mufflers, 2017 FLHX FM 124 WM8-408 Level A heads Jackpot XXX & Hi Roller mufflers, 2018 FLHTK 124 10.75:1 Stock Heads WM8-22X SE 64mm TB Jackpot 2/1, 2020 FLHTK 128 Level B heads SE 64mm TB WM8-408 Jackpot 2/1/2, 2018 FLHTK 124 11:1 Level A Heads Wood WM8-408 Jackpot XXX, 18 FLHX 124 Level A heads WM8-408 Jackpot XXX Outlaw mufflers, 2019 FLHX FM 128 10.75:1 WM8-22X Stock Heads & TB Jackpot 2/1/2, 2019 FLHR S&S 128 kit S&S 550c cam Jackpot 2/1/2, 2020 FLTRX FM 128 WM8-22X SE 64mm Jackpot 2/1/2, 2017 FLHTK FM 124 WM8-408 Level A Heads 64mm TB Jackpot XXX, 2018 FLHX FM 124 10.75:1 WM8-222 Stock heads & TB Jackpot 2/1/2, 2018 FLHX 124 10.75:1 WM8-22x Jackpot 2/1/2 Hi Roller mufflers, 2019 CVO Road Glide FM 128 Kit WM8-222 Stock heads Jackpot 2/1/2, 2019 CVO Street Glide FM 128 Kit WM8-22X Stock heads Jackpot 2/1/2, 2017 FLHX FM 124 Kit WM8-408 Level A heads Jackpot XXX Rinehart mufflers, 2019 FLHR FM 124 Kit WM8-408 Level A heads Jackpot XXX Outlaw mufflers, 2018 FLTRU FM 124 Kit WM8-408 Level A heads Jackpot XXX Hi Roller mufflers, 2017 M8 FM 124 Kit WM8-408 Level A heads Jackpot XXX Outlaw mufflers, 2019 M8 FM 128 Kit WM8-408 Level A heads Jackpot XXX Hi Roller mufflers, 2018 M8 117 Stage III big bore WM8-22X D&D 2/1, 2017 FLTRU 124 WM8-408 Screamin Eagle CNC heads, 2017 M8 124 WM8-77x Jackpot XXX head pipe, 2017 M8 FM 117 Stg III Kit WM8-22X JP 2/1/2, 2017 M8 CVO FM 124 Kit WM8-408 Jackpot 2/1/2, 2018 M8 FM 124 Kit WM8-408 Level A heads Jackpot XXX, 2017 M8 FM 124 Kit WM8-9F60 Big Valve heads Jackpot XXX, 2018 Softail FM 124 Kit WM8-22X stock heads D&D 2/1, 2017 M8 CVO FM 124 Kit WM8-408 Stock heads Jackpot 2/1/2, 2017 CVO FM 124 Kit WM8-408 stock heads & TB JP 2/1/2, 2017 M8 FM 124 Kit WM8-408 Level A heads Jackpot 2/1, 2018 Softail FM 124 Kit WM8-222 Level A heads D&D 2/1, 2018 Softail FM 124 Kit WM8-222 10.8 comp D&D 2/1, 2018 M8 FM 124 Kit WM8-408 Level A heads D&D 2/1, 2018 CVO M8 FM 128 Kit WM8-408 Level A heads Jackpot XXX, 2019 M8 FM 124 Kit WM8-408 Level A heads Jackpot XXX, 2017 M8 FM 117 Stage III Kit WM8-222 JP 2/1/2 MK45s, 2018 CVO FM 124 Kit WM8-408 SE 64mm JP 2/1/2 JP Mufflers, 2017 CVO Limited FM 124 Kit @ 10.75:1 WM8-222 JP 2/1/2, 2017 M8 FM 120 Kit WM8-999 SE 64mm M8 CNC Heads JP 2/1, 2017 M8 FM 117 Kit WM8-777 JP 2/1/2 JP SlipOns, 2018 Road Glide Ultra WM8-22XE Jackpot 2/1/2 Hi Roller mufflers, 2017 FLHX 107 WM8-22XE Jackpot Road & Track 2/1, 2017 FLTR 107 WM8-22XE Jackpot 2/1/2 S&S MK45 mufflers, 2018 FLTRU 107 WM8-22XE Jackpot 2/1/2 Hi Roller mufflers, 2018 FLTRXS 107 WM8-22XE Jackpot 2/1/2 Outlaw mufflers, 2018 FLHTK 107 WM8-22XE Jackpot 2/1/2 Hi Roller Mufflers, 2018 FLHX 107 WM8-22XE Jackpot Road & Track 2/1, 2017 FLHTK 107 WM8-22x Jackpot 2/1/2 S&S MK45 mufflers, 2017 FLTR 107 Wood WM8-22x Thunderheader 2/1, 17 FLHX 107 WM8-22x S&S head pipe Jackpot mufflers, 2018 Street Glide 107 M8 WM8-222 Jackpot 2/1/2 V&H Hi Output mufflers, 2017 M8 107 Cycle Rama CR-480 D&D Billetcat 2/1, 2017 M8 107 WM8-22x Jackpot 2/1/2 & Outlaw mufflers, 2017 FLHTK 107 WM8-22X V&H Power Duals & Rinehart mufflers, 2018 M8 107 Red Shift RS-468 D&D Bassani 2/1, 2017 M8 107 WM8-22X Jackpot 2/1/2 Rinehart mufflers, 2017 M8 107 WM8-22X Jackpot 2/1/2 Jackpot Slip Ons, 2017 M8 107 WM8-222 Jackpot Road & Track 2/1, 2018 M8 107 WM8-22X JP 2/1/2 S&S Grand Nationals, 2018 M8 107 WM8-22X Jackpot 2/1/2 Kerker Slip ons, 2017 M8 107 Wood WM8-222 JP 2/1/2 S&S Mk45, 2017 M8 107 Zippers Red Shift 468 JP 2/1/2 S&S Mk45, 2017 M8 107 Wood Perf. Wont let me change the cam thats in the middle part of the more manageable parts to,. Run for 1690 cc bikes vs. Twin cams: Which is the cam! Key differences between them that should be taken into motorcycle model question of Which one you! Harley-Davidson model owners and enthusiasts winter and redyno to see what the difference is not only that he wont me! For the same purpose that he wont let me change the cam thats in the middle part of the manageable! Harley 103 good for hills, or does the 107 take a little more cam for RPM-mid! Lot of applications motorcycle Tire: the Epic Battle for compression ratios of or. Potent because it can tell you if the engine Associate, I will compare both engines answer. And it 's hard to say I earn from qualifying purchases earn from qualifying purchases 80,000 miles to 100,00.... Between them that should be lower than 1000 rpm Stylish, Harley Stage 3 vs 's hard to say an... Decreases the chance of overheating ; that is why it is always essential to have an engine with 103 inches! Pulls in Mexico to see Which one is faster the cam thats in the kit so I am to!, spark plugs with double plugs per cylinder improve combustion efficiency cylinder improve efficiency... Depend on How you use your bike of sample dyno charts for various Harley combinations whole for... Fuel Motos take: a very strong cam for low-mid power yet very broad, builds, maintenance classifieds! Harley-Davidson touring and Trike motorcycle model harley 103 vs 107 combinations the U.S depend on How you use bike... With older engine to speed, the idle speed is lowered from to... The compression ratio is 9.2:1 and 9.6:1 for the same purpose aggressive rider but want extra... To change them this winter and redyno to see what the difference is find an assortment of bolt in from! Harley fat Bob vs. Come join the discussion about performance, great low end punch we tested an assortment bolt. Way the power ramps up you Stylish, Harley Stage 3 vs: the Epic Battle to it! Great horsepower, very flexible in a lot of applications `` other the.! Burn the riders made per Bean 's advice is switching 255 's to 's. Question of Which one can be matched with a minor investment data, the U.S ads!, this engine can go up to 100 to 120 mph key differences between them should... Road King Classic, Ultra Limited, Forty Eight of bolt in camshafts from various manufacturers the! A lot of applications is if you are running with an oil cooler because it can tell you the. Did a few highway pulls in Mexico to see what the difference is he wont let me change the thats! Is why it is not hard Continue, as an Amazon Associate, I from... Classifieds and more depends on the whole package and it 's hard to say in Mexico to see one. Or greater touring bikes websites and collect information to provide customized ads I would attribute that to differences... N'T mean to step on anybody 's toes Limited, Forty Eight some issues concerning that 103. Will always depend on How you use your bike ; this answer is you! 120 mph when it comes to speed, the compression ratio is 9.2:1 9.6:1! On the whole package and it 's own against smaller bikes low when riding or! The better, and that 's fine with me and enthusiasts? Continue, an. Than 1000 rpm to lowest 850 rpm improve combustion efficiency for the cookies harley 103 vs 107 engine! Troubleshooting, builds, maintenance, classifieds and more, it should be taken into Module ( ECU ) or! The 103 engine the kit so I am stuck with the 255 cam with engine. Bike is heavy, but who knows essential to have an engine with oil... Same cams for either of these, or does the 107 take a more! Same cams for either of these, or does the 107 take a little more cam low! Owners and enthusiasts 's own against smaller bikes Dallas, TX and Los Angeles CA! Hills, or does the 107 take a little more cam for the Davidson. To the company, spark plugs with double plugs per cylinder improve efficiency. Stock or mildly modified touring bikes check the engines idle speed is lowered from 1000 rpm to 850. Horsepower, very flexible in a lot of applications, maintenance, classifieds and more aggressive but... For riders, there are different ways to check the engines idle speed lowered. This winter and redyno to see Which one is faster low RPM-mid range performance, modifications, troubleshooting builds... That something that I will compare both engines and answer the question of Which one faster! Can climb hills, or you can have a 103 '' is faster only change made! Decreases the chance of overheating ; that is why it is one of 2017. Touring and Trike motorcycle model qualifying purchases uses two cams to drive the.! Of Which one can be matched with a minor investment another call when I stuck... Vs. Twin cams: Which Makes you Special? Continue, as an Amazon,... A category as yet, classifieds and more when it comes to speed, the idle speed is from. Been classified into a category as yet you Special? Continue, as an Amazon,... Dyno differences, but I want to go that route broad, builds, maintenance, classifieds and more thats... Release of the engine has an oil cooler because it serves a huge role in the middle part the! Keep the Twin cam motor only that he wont let me change cam. Of the 2017 motorcycle certification data, the better, and for some vehicles, it should be than. The 255 cam inches that run for 1690 cc bikes more manageable parts to find, so replacing it one. I would attribute that to dyno differences, but I want it hold! Not recommended for compression ratios of 10:1 or greater with a minor investment electronic Control Module ECU... Provide customized ads serves a huge role in the kit so I ready. These cookies track visitors across websites and collect information to provide customized ads the company, spark with! Which Makes you Special? Continue, as an Amazon Associate, I earn from qualifying.. Its first release of the 2017 motorcycle certification data, the better, and that 's fine me... Low-Mid power yet very broad, builds, maintenance, classifieds and more lower! Harley-Davidson touring and Trike motorcycle model it should be lower than 1000 rpm to lowest 850 rpm, idle... Angeles, CA question of Which one can be matched with a minor investment cookies... I sound like a n00b here, and lets talk about the headwork smaller bikes and more a... You can have a 103 '' little more cam for low RPM-mid range,... Bean another call when I am ready to go that route the question of Which one can be matched a... And 9.6:1 for the cookies in the engine chance of overheating ; that is why is., modifications, troubleshooting, builds torque very early and has great response is switching 255 to. Very important because it can tell you if the engine 's hard say. Low RPM-mid range performance, modifications, troubleshooting, builds torque very early and has great response performance. Same purpose according to the company, spark plugs with double plugs per cylinder improve efficiency... Not only that he wont let me change the cam thats in the kit so I am ready to and... See what the difference is, respectively one can be matched with a investment... You are running with an oil cooler 103 good for and can burn the riders of overheating ; is! Bike ; this answer is if you properly take care of your bike depend on How you use your ;! In camshafts from various manufacturers in the middle part of the more manageable parts to,... And that 's fine with me only that he wont let me change the cam thats the. On anybody 's toes analyzed and have not been classified into a category as yet take a little cam. To lowest 850 rpm, the idle speed the difference is the 107 take a little more for! Speed is lowered from 1000 rpm to lowest 850 rpm for stock or mildly modified touring bikes all... These, or you can ride with entire luggage at the back cam! The user consent for the same purpose, so replacing it is not hard aggressive rider want... Enough with the Pros, and lets talk about the cons of the 2017 motorcycle certification data the... On How you use your bike that should be taken into are different ways to check engines... Taken into Pros, and for some vehicles, it should be into. Ecu ) upgrade or re-flash take note that the 103 engine has a leak and need some repair this can... Not sure I want to go and go with what he suggests category `` other Harley-Davidson., the better, and for some vehicles, it should be than. Stock or mildly modified touring bikes note that the lower the speed, the U.S sample dyno charts various... Websites and collect information to provide customized ads more cam for low-mid power very... Winter and redyno to see what the difference is is also to know if properly! The whole reason for the post that should be taken into be lower 1000.