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  #18 (permalink)  
Old 01-31-2008, 05:41 AM
patrickt's Avatar
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,025
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Quote:
Originally Posted by priobe View Post
patrickt,

Thanks for the info on the oil pressure. That makes me feel a whole lot better.

As for the leakdown test I will call him tomorrow to find out more specifics about this.

As for the cam, do you feel that it is good or should I change it?
I recall from previous posts that you were having problems with your Webers, a miss at 3500 or something like that, and that you felt your cam was not the best choice. Can you give us an overall description of just how your engine runs, idles, pulls at different rpms, etc.? You only have 500 miles on your engine -- that's brand-spanking-new. Nevertheless, a 26% loss on the leakdown is something that requires further investigation. You generally like to see the cylinders hold something in the 90's (when you pressurize them to 100psi); a big FE, maybe in the 80's. Going all the way down to the 70's though raises an eyebrow. I'd like to see the leakdown for all 8 cylinders. If six are high and two adjoining cylinders are low, that tells you something. Likewise if the kid tells you "Man I could hear air whistling out the passenger sidepipe when I did #2 and #4, but all the others did well." You get the idea.

Last edited by patrickt; 01-31-2008 at 07:14 AM..
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