FE Power Forums

FE Power Forums => FE Technical Forum => Topic started by: c9zx on March 01, 2012, 03:26:07 PM

Title: Cam opinions wanted
Post by: c9zx on March 01, 2012, 03:26:07 PM

4.25 bore 3.98 stroke Barry's stageX Eds with 10.0:1 SCR 91 octane pump gas in a street car (Cobra, 2500lbs). I like your opinions on a solid flat tappet. Would like to see peak power 5700-6000, So far my thoughts are 248/254@ .050, 110 LSA, .620/.635. All input is very welcomed. Thanks, Chuck

Title: Re: Cam opinions wanted
Post by: jayb on March 01, 2012, 06:17:49 PM

The 390 stroker dyno mule I tested in my book (445") peaked at 5600 - 5900 with most of the performance manifolds, and it used a Comp 306S solid cam.  The cam was 260@.050, and .640 lift if I recall correctly.  Your engine has more cubes than my 390 stroker, which will tend to drive the peak RPM down just a little.  I'd say you should be looking at around 260 @ .050" to hit the peak power RPM that you are looking for.

Title: Re: Cam opinions wanted
Post by: hotrodfeguy on March 01, 2012, 08:38:54 PM

Also in that light of a car more cam is not a bad thing, first gear is going to spin tire no matter what cam you run. Not like you would over cam to the point first gear would be a dog is my point in a light weight car like that.

Title: Re: Cam opinions wanted
Post by: plovett on March 02, 2012, 07:56:17 PM

I think you're pretty close to where you want to be.  My 432 inch FE peaked at 6200 rpm with a 240/246 @ 0.050" cam.   There's more to it than just cubic inches and cam duration.  Nonetheless, I think you're close.

Ditto on the "more cam is not a bad thing" for a light car. 

paulie

Title: Re: Cam opinions wanted
Post by: c9zx on March 06, 2012, 05:00:58 PM

Thanks for the replies. Does anyone have experience with Oregon Cams? If, so good or bad? Thanks, Chuck

Title: Re: Cam opinions wanted
Post by: hotrodfeguy on March 07, 2012, 09:23:16 PM

I have used them for regrinds and no issues

Title: +2
Post by: westcoastgalaxie on March 07, 2012, 11:21:26 PM

Ive used them before and will continue to use them. Great customer service and quality. I would call them and ask to talk to Ken. Be prepared to have all of the details for your ride, tranny, rear gears, etc. He knows FE's well.

Title: Re: Cam opinions wanted
Post by: Rory428 on March 08, 2012, 12:48:53 AM

I`ve been running Oregon Cams in my Fairmonts 428s for many years, very happy with them. I have also used their FE rocker shaft support kits, and have had used FE solid lifters re-surfaced by them. Plus Ken & Jason are longtime Ford racers too. I also buy my Brad Penn oil from Ken as well.