Originally Posted by gmonsen

I have been working on an NA 20b and think it will make 375-400 whp, though its a few weeks from dyno. I suspect it will make well in excess of 300 ft pounds from 1500-8500. We are using 10.5:1 Renesis rotors with the usual improved seals and springs and a slightly different approach to porting we think is better suited to the NA 20b. There are several subframe solutions available that eliminate the usual problems. Also, while we have yet to weigh the results and I have heard that many think it will weigh more than the stock car, I am fairly comfortable that it will weigh more -- perhaps well more -- than 50 pounds less and all from the front. So much stuff comes off related to the turbos.

Gordon

Originally Posted by gmonsen

GtoRx7: We spoke a year or more ago, if you remember. I said I suspected it might make 300 ft lbs... I am simply hopeful and that is a target.

Gordon

Originally Posted by Unseen24-7

Ya I was just gonna ask if anybody had dyno sheets from an N/A 20B, but i'm thinking there probly aren't too many of them.

Originally Posted by soloracer951

I have a slightly different 20b project going on that I hope to get 400 rwhp N/A out of. Details can be found here:

http://www.914world.com/bbs2/index.p...0sheridan&st=0

Originally Posted by Cartman2120

Here is the dyno from my NA 20B hillclimb car. The engine was street ported and had a custom upper intake with a 75mm throttle body. The 281HP run had the shop's exhaust hose pluged into the tailpipe , the 290HP was just the car's muffler.

Originally Posted by GtoRx7

Are you using the 9.0:1 rotors or the 9.7:1 rotors? And I just noticed you dyno'd to 9500rpms, did you do any supporting mods internally for that?

Originally Posted by Cartman2120

Here is the dyno from my NA 20B hillclimb car. The engine was street ported and had a custom upper intake with a 75mm throttle body. The 281HP run had the shop's exhaust hose pluged into the tailpipe , the 290HP was just the car's muffler.