WebApr 3, 2024 · 117 cubic inch displacement 125 ft. lbs. of torque at 3500 RPM for a performance boost the rider can feel with every twist of the throttle High-performance camshaft is matched to displacement and air flow intended to maximize performance WebHarley Motorcycle Compression Test Fix My Hog. Learn why a motorcycle compression test is an important starting point to get a good view on the health of an engine.
Harley Davidson Compression Ratio And Cam Timing - YouTube
WebCompression ratio is also dependent on cam duration. A mild cam with an early intake valve closing point will work well at low RPM. However, at high RPM the intake valve will close before the maximum amount of air/fuel mixture has been drawn into the cylinder. As a result, performance at high RPM will suffer. WebMar 20, 2010 · The combustion chambers, head gasket thickness and deck height all are part of the equation to calculating the actual compression ratio. First I would tend to doubt you are actually at 10.25:1 but you are … halo effect in business
Harley Motorcycle Compression Test Fix My Hog
WebAug 18, 2014 · For sake of argument here are compression ratios on various 2014 Harley-Davidson engines… 1200cc Evolution: 10:1; 103ci Twin Cam: 9.7:1; 1247cc Revolution: 11.5:1; Generally speaking, you should be safe to run 87 octane on a 103ci Twin Cam Harley because its compression ratio is less than 10:1. But with the 1200cc Evolution … WebThe larger compression ratio on the newer engines was still a serious problem, due to the low fuel quality and octane. With many Shovelhead owners having to turn towards aftermarket parts to keep the bike running … WebMay 15, 2015 · I would mill the heads to get the comp. ratio up there. With 10:1 pistons you might be building to much crankcase pressure then the breather can get overworked and you'll see a lot of blow by. You might get around that with the correct overlap cam though. There's guys here that know a lot more about this shit than I do though. burkes outlet.com new arrivals