Originally Posted by NeverEnough
Am I the only one that caught this? 317WHP with a 185 mm Pulley and supporting mods and Tune? What's up with that? Stock cars are putting down ~290WHP. Does that type of dyno read REALLY low? I would expect 360ish WHP from that setup.
Nope - as I said before - if you look at Chi-Towns results on a Mustang Dyno with the Needswings Intake and the ASP pulley - I think it was only 298WHP. Not sure if a Mustang Dyno reads low or High but I would think Low considering his 1/4 mile times.
Go to this website
http://www.to4r.com/calcs/pwtq.php
and punch in 317HP and 5200RPM and click calc
You can see the comparisons for a Dyno Jet and for Calculated Crank HP.
I'll take (434-330=104) 104 Crank HP gain for with just a pulley, tune, iridium plugs and a SL55 intake....(under $2K list - and I paid even less..) and 373WHP for a Dyno-Jet Dyno.
Diffrent dynos, different conditions. To bad this website does not list all the dynos.