Had car on the dyno for first time
Had car on the dyno for first time Ok i have a 95 firebird with a 2000 ls1 next week i'm doing H/C so i wanted to dyno before and after, mods are 3800 vig converter, pacesetter lt headers OR y pipe flowmaster cat back, 373 gears, car runs 7.92 1/8 mile on motor and 7.39 on a 100 wet kit. I have friends with more mods but cant out run me so I thought it would pull high dyno numbers but it did not go that way.
Motor max power = 294.7 @ 6000 rpm ( converter unlocked with all runs )
Motor max torque = 310.4 @ 4200 rpm
100 N20 wet = 365.8 hp @ 6000 rpm and 400.5 ft-lbs @ 4700 rpm
The dyno guy said that the air fuel ratio was way to rich on the motor dyno sheet shows 11.0 and is flat from 4000 and up, air fuel on the n20 run was 14.5 on the hit and 11.0 from 4600 rpm and up.
All my friends say these #'s are low for the times the car runs What dou you guys think?
Motor max power = 294.7 @ 6000 rpm ( converter unlocked with all runs )
Motor max torque = 310.4 @ 4200 rpm
100 N20 wet = 365.8 hp @ 6000 rpm and 400.5 ft-lbs @ 4700 rpm
The dyno guy said that the air fuel ratio was way to rich on the motor dyno sheet shows 11.0 and is flat from 4000 and up, air fuel on the n20 run was 14.5 on the hit and 11.0 from 4600 rpm and up.
All my friends say these #'s are low for the times the car runs What dou you guys think?
Originally Posted by BADSZ28
What are your traps? What does the car weigh? These are huge factors in determining power. A dyno is a tool. What type of dyno?
Traps are 91 to 95mph, weigh I dont know what ever a stock hard top weighs, and not sure on the dyno type either that was the first time i have ever seen a dyno
The results are in, installed 5.3 heads, head work included 2.02/1.60 and cleaned up the bowl where the valve seat and the head meet no other porting, A TR224 on a 112lsa and NLP tunning. Car went from 294.7/310.4 with LT's w/OR pipe, flowmaster, ls6 intake, 373's and a 3800 converter unlocked To 380.4/ 382.8 with unlocked converter with HC I need to port the throttle body and get the converter sol fixed that should make it a little better
Originally Posted by LSs1Power
Those are great numbers for a H/C LT1. Congrats
Still nice numbers though!!
Originally Posted by hc_performance
yes they would be if it were actually an lt1 but he said in his first post that it has a 2000 ls1 in it.
Still nice numbers though!!
Still nice numbers though!!
