CantZme Posted July 7, 2006 Share Posted July 7, 2006 as of now, i have a megasquirted l28et with a t3/t4 turbo and to be honest i'm not really satisfied with the power and spool time i have, due to my low stock compression (7.4 to1) and low displacement. I have always been fond of the ford 302 blocks due to their abundance and stout bottom end. I was thinking, has anyone done a turbo 5.0 in a z? I understand that the stock heads don't flow too well so many opt for aftermarket head such as AFR and the gt40 heads. With a decent sized turbo(t-66, holset hx40), some aluminum gt40 heads, msns, wb02 and the supporting mods such as upper/lower IM, bigger tb and so on what kind of boost would this motor be able to handle. I'm guessing that 450whp should be attainable with these mods at decent boost levels with megasquirt, which would be a wild ride in a z of any year. Please correct me if i'm wrong, i have heard that the 91 302 blocks came with a forged crank and forged slugs. Please chime in if u have any relevant info as i am a newbie sbf's Quote Link to comment Share on other sites More sharing options...
LMoore56 Posted July 7, 2006 Share Posted July 7, 2006 Well I know the 91 5.0's came forged pistons, but I'm not sure about the crank. They were 9 to 1 compression also, that is if I'm not mistaken. Quote Link to comment Share on other sites More sharing options...
blueovalz Posted July 7, 2006 Share Posted July 7, 2006 We had a local "Dyno day" last weekend here in Little Rock, and 3 supercharged Cobras showed up (2 Cobras with the 5.0-one scroll type, one centrifugal, and a single 4.6L Cobra). The weakest of the three was 461 RWHP, and the strongest was 541 RWHP. I just slowly shrunk away as I watched this, thinking of my little ol' 300 RWHP. I think 18 lbs of boost was the highest being run. Quote Link to comment Share on other sites More sharing options...
CantZme Posted July 7, 2006 Author Share Posted July 7, 2006 i doubt that 18psi was on a stock bottom end...do u know if there was any internal work done on the 302's? Quote Link to comment Share on other sites More sharing options...
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