I've been to several sites and I get conflicting results. First off, my car weights 3550 with me in it. It runs 11.8's @ 111.xx mph, but when I figure for mph it says I only make 337 rwhp and when I figure on et it says 418 rwhp. I have a 4000 TC in a th350 and I know that the TC is killing my mph at the track, but which figure is correct?

Randy

 

I make at most 370 rwhp and the car I figure weighs in at 3650 and run the times in the sig.

Automatics with stalls from what I have seen dyno poorly unless locked up.

 

If your converter is killing mph it will tough to get an accurate estimate using mph. How many mph do you think you're losing?

Ryan

 

Probably 25 rwhp. It also changes with what STR TQ your get. I have a 2.5.

 

The reason I haven't been on a dyno is that I know the TC will kill the #'s.

I was running around 115-116 mph when the car was a m6 and had the hotcam, and sense then I've added a larger cam along with the A3 and 4000 TC. So I think I'm losing at least 3-4 mph.

Randy

 

I found a pretty good site called www.smokemup.com seems to be pretty accurate. Your hp will be down but the torque should be up. Put a manual lock up in the trans. I run 116 on street tires at 3,600lbs. The program puts me at 385hp for the mph. Which is pretty much right on from what I have seen. I think my real number is actualy in the low 400hp range. The car should run about 119mph when I can go WOT from beginning to end. Launching at half throttle, spinning, letting off and hitting third tends to kill mph.