397 vs stock dyno results [Archive] - Dodge Challenger Forum: Challenger & SRT8 Forums

: 397 vs stock dyno results


PWR_Andy
10-07-2011, 01:14 PM
This is the old style 5.7 stroker 397 vs a stock 5.7(old style)

http://i861.photobucket.com/albums/ab175/PW-Racing/Dyno/392-3.jpg





Peak Gains: 181rwhp/137rwtq

Gains at 5900rpm: 185rwhp/167rwtq

Gains at 4250rpm: 104rwhp/129rwtq



Cant wait to see how he runs at the track. Maybe a new 5.7 stroker record in the future.

PWR_Andy
10-07-2011, 01:19 PM
The red line is the same customer when he was heads/cam/bolt-ons. We gained 90rwhp and about 50rwtq over the heads/cam setup.

http://i861.photobucket.com/albums/ab175/PW-Racing/Dyno/Tony-1.jpg

aarcuda
10-07-2011, 01:19 PM
Wow. What's the cam, compression

PWR_Andy
10-07-2011, 01:27 PM
On the red line it was our 216, on the 397 we are using the Fr-230. Compression is 10.5:1

archtaan
10-08-2011, 10:12 PM
Very nice Andy! That is one flat torque curve. Looks similar to the KB style curve. Cant wait to see the track results.

PWR_Andy
10-09-2011, 09:35 AM
Yeah, the tq curve is what I like best.

archtaan
10-09-2011, 09:59 AM
Yeah, over 400rwt through almost the whole rpm range from 3500 or so to past redline. Should pull very well. What tranny in this one.

PRoBLeMz
10-11-2011, 09:32 AM
torque monster, kinda reminds me of my 392 :D