Feedback on EV46 vs EV27

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Jun 23, 2021 | 11:02 AM

#11

98hotrodfatboy

Seasoned HDF Member

Joined: Mar 2010

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From: Poolville

I'm not sure that Wiseco makes a 9.5:1 piston.. I know they make the stockers at 8.5:1 and then 10.0:1, 10.5:1and 11.0:1 compression pistons. If you're running nine and a half to one compression did you have Screaming Eagle heads put on or something with the flat tops? Anyways if you do a compression test at 9.5:1 compression with that ev27 cam in there you should have somewhere around 180 psi cold cranking pressure (CCP) the reason why I'm saying this is, I'm wonder if maybe the cam is off a tooth and one way to tell whether it is or is not is by taking a compression test But That's only relevant to the parts in the motor if your exactly sure.. And That's something you can do without getting into anything that the indy/shop did for you.. Can you do a compression test? The reason I'm saying all this is because with those upgrades it should be a very noticable difference throughout the entire rpm range up to at least 5500 rpm if not 6000 ..