Dyno results
Thread Starter
Joined: Feb 2004
Posts: 735
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From: San Diego, CA
Car: 89 GTA
Engine: 6.0L Procharged
Transmission: T-56
Axle/Gears: 4.10
Dyno results
I took my TTA to Import Pros dyno day in Westminster today. I was a little disappointed but learned where I am at.
RWTQ - 530 ft/lb
RWHP - 390 @ 3950 rpms.
My power starts falling off at 4k so I"ll see what I can do to give the top end a little boost, will post the sheet when I get it scanned in.
RWTQ - 530 ft/lb
RWHP - 390 @ 3950 rpms.
My power starts falling off at 4k so I"ll see what I can do to give the top end a little boost, will post the sheet when I get it scanned in.
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Joined: Sep 2003
Posts: 6,859
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From: Cypress, California
Car: 1989 GTA
Engine: 369 TPI
Transmission: 4L60E
Axle/Gears: 3.70 Nine Bolt
Max power at 3950rpm is interesting though. Maybe you need to upgrade your exhaust system. Maybe a new cam.
Thread Starter
Joined: Feb 2004
Posts: 735
Likes: 7
From: San Diego, CA
Car: 89 GTA
Engine: 6.0L Procharged
Transmission: T-56
Axle/Gears: 4.10
Yeah, I was disappointed in the low RPM peak. I'm pretty happy with the max numbers.
I'm only trapping 107's because of my HP drop-off at the end of the track. I have a full SLP exhaust, no cat, and 3" downpipe so there is no where to go on the exhaust. I'm going to try 100# valve springs to see if that helps.
I'm only trapping 107's because of my HP drop-off at the end of the track. I have a full SLP exhaust, no cat, and 3" downpipe so there is no where to go on the exhaust. I'm going to try 100# valve springs to see if that helps.
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Joined: Dec 2001
Posts: 386
Likes: 1
From: Temecula, Ca
Car: 89 TA
Engine: 3.8 V6
Transmission: 2004R
Originally Posted by 89******bird
100# valve springs to see if that helps.
That will do it
I'd be willing to bet it was on a dyno jet do to the torque #'s
How much boost ?
How is your fuel mixture when the power falls off? What do you have between the air cleaner and the turbo? I noticed at our last dyno day that the naturally aspirated cars were experiencing restrictions in the intake unless they had done some mods to the plumbing.
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Thread Starter
Joined: Feb 2004
Posts: 735
Likes: 7
From: San Diego, CA
Car: 89 GTA
Engine: 6.0L Procharged
Transmission: T-56
Axle/Gears: 4.10
I'm not sure what kind of dyno it was. Stock s2000's where laying down about 200HP, not sure on their torque #'s.
Two Supras showed up, one doing 397 and the other doing over 700 on a single turbo.
I really don't have any intake or exhaust plumbing I can improve. I have a large inlet tube with a K&N so big I had to remove the windhsield fluid reservoir. I have a 58mm TB also. My 02's are solid all through the RPM range so it seems my injectors are keeping up.
I think I'll go with the new valve springs and see if my traps increase. Too much faster and I'll have to get a roll cage
By the way, I only paid $50 for the dyno session
Two Supras showed up, one doing 397 and the other doing over 700 on a single turbo.
I really don't have any intake or exhaust plumbing I can improve. I have a large inlet tube with a K&N so big I had to remove the windhsield fluid reservoir. I have a 58mm TB also. My 02's are solid all through the RPM range so it seems my injectors are keeping up.
I think I'll go with the new valve springs and see if my traps increase. Too much faster and I'll have to get a roll cage
By the way, I only paid $50 for the dyno session
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