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Old 2006-07-30, 09:44 PM   #14
Kevin M
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Join Date: Sep 2003
Location: Reno
Posts: 9,445
 
Car: '93/'01 GF6, mostly red
Class: 19 FP
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The bigger the engine you add a given turbo or supercharger to, the *less* horsepower it will make, although peak torque should be similar. This is because a bigger motor spools a turbo faster, and then the turbo runs out of efficiency sooner, and of course, RPM is part of the horsepower equation. In otherwords, a 550 whp turbo on a 2.5 liter motor is a 430 whp turbo on a 3.3 liter motor. Same for duckie's supercharger- it won't make 600 hp because it will make peak torque at lower engine speeds. 600 horsepower out of a 3.3 liter engine means a compressor that peaks its airflow at 5500-6000 rpm on that motor, or higher. Using an online turbo calculator, you'll see how nailing a horsepower goal is tougher with larger engines, because turbos get bigger very rapidly as you go past the GT30/32 range. It's probably exactly as easy and almost exactly as espensive to build a 1000 hp SVX as it is 600... except for the part where you have to make said engine actualy fit under the hood, as Scott mentioned. Moving the battery to make more room under there does make sense now. And seriously, nobody here has anything against you at all, but you do have pretty unrealistic expectations for this project, at least the way you have explained that you will go about it. Remind me again, what blower is used for the kit you are getting?
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