EV27 cam-power question-High compression?
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Road Captain
Joined: Aug 2008
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From: Twin Cities,Mn.
EV27 cam-power question-High compression?
Looking at doing the top end on the wide glide and wondering about increasing the compression. I already have the EV27 in her. Should I do the heads? What kind of power could I get from her with this cam and increased compression/head work? I am also looking at reliability. Any feedback would be appreciated...
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Joined: Sep 2009
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EV-27 has too little duration and too early/closely spaced valve timing events for high static compression IMO, if you were to do a calculated dynamic compression calculation with high static compression and that cam I think you'd end up in the danger zone for dynamic compression ratio. This is why its such a good cam for stock motors, you'll want a bigger cam to work well with high static compression and keep detonation/preignition at bay on pump gas.
Head work as in port/polish by all means will make a difference in any case but if you want to keep that cam I personally wouldn't do much in the way of bumping up your compression up
Head work as in port/polish by all means will make a difference in any case but if you want to keep that cam I personally wouldn't do much in the way of bumping up your compression up
Last edited by TheBikingViking; Jul 5, 2010 at 02:45 PM.
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Joined: Sep 2009
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Exactly what he said. I run an Andrews EV-51 with high compression and headwork with great results but you might not wanna go quite that aggressive, depends on your riding style.
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