going to dyno today
Feb 5, 2005 | 11:12 PM
#11
Originally Posted by procharged hd
Heres the numbers max hp was 355hp and max tourq was 408 thats not to bad i was hoping for a little better but the guys at the dyno was supprised they said i was probly losing about 20% through my drive train.For some reason the numbers would fall hard at around 4700rpm so im gonna send nelson the graph to nelson so he can take a look at it and send me another pcm
Feb 8, 2005 | 09:58 PM
#15
Thread Starter
Staging Lane
Joined: Dec 2004
Posts: 51
Likes: 0
here is the dyno sheets! we couldn't turn no more than 5400 rpm, because we think we were hititng the speed odometer limiter. The truck did 145 mph in 3rd gear on the dyno! let me know what you guys think
Feb 8, 2005 | 10:19 PM
#16
Something looks funny. Its hard to see exactly, but your HP numbers with the procharger should really be climbing in the upper rpms. Instead they are flat then drop off. Take a good look at your system and see if you can find anything wrong. Could be belt slip, could be knock retard, low timing, etc... You've got more power in that setup.
Feb 8, 2005 | 10:56 PM
#20
12 Second Truck Club
Joined: Oct 2002
Posts: 1,677
Likes: 0
From: Salt Lake City, Utah
That curve is exactly what mine felt like with the stock ATI intercooler. It was really restrictive after 5000rpm. My Maf #'s would almost stop climbing at 5000rpm, (about45lb/min.) and the IAT's would go so high that it would pull a TON of timing from 5000 to 6000. Do you have a datalogging program so you can see what's going on?