Problems occur when people lower the idle of the engine to get that cool sound, hence not enough pressure at the lower than the factory recommended setting. You'll just scare yourself needlessly the first time you glance down at a traffic light on a hot day and see the gauge reading very close to 0. Normal oil pressure (under Normal conditions) is 7-10 Lbs per 1,000 RPM's. Most people that are familiar with an Evo will tell you not to even bother installing an oil pressure gauge. If you haven't changed the fastener to a hex cap screw, you'll need a drag link socket to remove it.īoth myself and my riding buddies never had any issues with the HD oil pump. I clean mine about every other oil change and so far haven't found anything in it of consequence. If it has been cleaned at least a couple times since the engine was new it should be OK. If it gets clogged you're going to get a lot of tappet noise and valve train noise. The valve tappet screen is the first place that high pressure oil goes to from the oil pump. I've yet to see any dirt when I've gone to clean the tappet screen. Andrews A Grind Camshaft Harley Davidson Shovelhead Evo Big Twin Unsold See similar items 24. Ps detonation problems would most likely come from to lean fuel or to much timing advance or to much compression. You don't need to do a lot to wake up the motor and be a lot happier towing.Ĭams are like oil opinions. Night rider dot com's site seem pretty good on the info that they post up. Then get it checked on a Dyno tell the guy you are looking to check the afr across the throttle range. Lqqout is right on with the carb jetting it seems some just go to big with fuel delivery for the work done probably no need to touch the main, maybe one size on the slow speed and a little richer on the air speed screw. There is a lot to know when picking cams, so do your home work and don't just drop any ol set in. Magnum 240/240 102 LSA Hydraulic Roller Cam P-Kit w/ Gear for Harley-Davidson Evolution 1984-1999. A better flowing exhaust will help and does not have to be loud just better flow. World’s top manufacturer of performance camshafts, lifters, valve springs, rocker arms and related valve train parts for all race and street performance engines.
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And the 13, if anything, improved my gas mileage. More low to midrange than the 27 but not as much midrange to high speed. EV engines with stock electronic ignition systems automatically adjust ignition spark. Anything with more duration/later intake closing will kill bottom end torque on a stocker. EVOLUTION ENGINE CAM INSTALLATION INSTRUCTIONS. Product breakdowns and malfunctions are covered after manufacturer's warranty. EV-27 is surely the most popular cam for otherwise stock Evos. But depending on mileage just a stock regrind of the valves check the guides replace the seals. : Andrews EV23 Cam for Harley Davidson EVO Big Twin 84-99 : Automotive. Head work as far as port and polish works in the higher rpm. You can call andrews and speak to them as to what you want to get out of a mild cam with the rest being basically stock. BRAND NEW PART 217554 Fits Harley M-Eight Models For 124' and 128' big-bore motors with head work Requires Hi-lift springs Made in the U.S.A. Re: Evo Harley Camshafts/Compression and towing.