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Stock 91 GTA dynoed!!!!!

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Old Sep 7, 2003 | 10:25 PM
  #1  
3.8TransAM's Avatar
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From: Schererville , IN
Car: 91 GTA, 91 Formula, 89 TTA
Engine: all 225+ RWHP
Transmission: all OD
Axle/Gears: Always the good ones
Stock 91 GTA dynoed!!!!!

Mods:
SLP catback
24# SVO inj.
my own tuning(prom)


Pulled 225 hp at 4350

and 315 ft lbs.............

Broken printer so i dont have the readouts but i should be getting them emailed shortly

Worked out pretty nicely since they are rated at 240 and 340ft lbs stock....

And since it was the chi9cagoland chapters buick meeting i didnt feel as bad as i thought since i beat out 3 other cars lol

Everyone was guessing 190, maybe 200 horse and maybe 300 ft lbs i said at least 300 ft lbs and 205/210 horse.....they ate their words and i was suprised lol

Going to have to do it again once i siameses a set of stock runners and finish porting my other stock tpi base :-) gonna go for 250 at the wheels with all ported modified stock components and ditch the sill factory air cleaner
Later
Jeremy
PS if i get the dyno readout i will scan it in if i get a chance
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Old Sep 8, 2003 | 10:23 AM
  #2  
1bdbrd's Avatar
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From: Kansas City
Car: 1991 Trans Am
Engine: L98
Transmission: T56
i recently dynoed my 91 trans am L98 too. with the mods in my sig and possibly a hypersh!t chip i pulled 230 and 360 lb ft at the wheels.:hail:

*edit* might wanna add the sig...
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Old Sep 8, 2003 | 12:30 PM
  #3  
89Formula350WS6's Avatar
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Joined: Aug 2002
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From: Middle Georgia
1bdbrd.... what is a line pressure booster? I know you are speaking of transmission pressure, but how did you boost the pressure other than tv cable adjustment?
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Old Sep 8, 2003 | 12:44 PM
  #4  
1bdbrd's Avatar
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From: Kansas City
Car: 1991 Trans Am
Engine: L98
Transmission: T56
your guess is as good as mine. its something the tranny shop put in when they rebuilt it. the car doesnt shift very hard at all. more like a firmer stock shift than a car that has a shift kit in it. even with those numbers i can barely get tire into second...i wish i would have gone with the transgo shift kit now.
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Old Sep 8, 2003 | 04:00 PM
  #5  
formul8!!'s Avatar
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Joined: Jan 2001
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From: www.thirdgentech.com
Car: 2004 GTO
Engine: LS1
Transmission: T-56
WOW! Those are impressive numbers!

Now, what am i doing wrong? These dyno numbers were BEFORE the headers and chip. The car dyno'd 8 RWHP and 10 RWTQ less after installing them.

If you guys are pulling those power #'s almost stock, making me wonder how much more is left in mine!
Attached Thumbnails Stock 91 GTA dynoed!!!!!-dyno-graph.jpg  

Last edited by formul8!!; Sep 8, 2003 at 04:03 PM.
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Old Sep 8, 2003 | 04:04 PM
  #6  
formul8!!'s Avatar
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From: www.thirdgentech.com
Car: 2004 GTO
Engine: LS1
Transmission: T-56
The mods done would help...
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Old Sep 8, 2003 | 04:36 PM
  #7  
poncho@home's Avatar
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Joined: Feb 2000
Posts: 728
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From: Laval, Canada
Car: 2004 BMW 330Cic
Engine: 3.0
Transmission: 6 speed
Is the SLP Stage II Chip setup for 24 lb injectors? My guess you gan get a little more out of your combo with a custom DIY prom.

I know I have gotten more than a Hypertech Chip out of my prom burning.
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