Thumper Posted April 7, 2005 Share Posted April 7, 2005 I am looking for about 400-450hp and 450-500tq. I am rebuilding my engine and will be using the stock crank, shotpeening the stock rods, and using +1mm forged pistons with a bunch of apr bolts. I will have a valve job, mild porting, and mild cam in the head. My question is should I run the 57 trim for better boost response and then spray a 50+ shot or run the 60trim for more efficency and more boost? This car will be a street car and will be used 50/50 solo II events and drag events. What kind of difference are we talking on spool up time between the two? Both will have 360 degree thrust bearings. 100-200rpms or 300-400rpms? Thanks Quote Link to comment Share on other sites More sharing options...
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