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Combo HP/Torque Question

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Old Apr 6, 2010 | 01:43 PM
  #1  
wildjyoung's Avatar
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From: Northern Kentucky
Car: 1991 Trans Am GTA, 2003 Grand Am GT
Engine: 350 Tune Port
Transmission: 700R4
Combo HP/Torque Question

I am scheduled to have my car on the dyno in early May. Any guesses as to the HP/Torque based upon the info below? The engine is new with about 4-5 hours on it. I was guessing that others with similar combo's would be able to help me guess.

360 CI
Flat decked
Flat Top Pistons
Eagle Crank
10.5:1 static compression
8.25:1 dynamic compression
Quench of .041
Lingenfelter 74216 Cam (213/219 .493/.502 HR112)
Harland Sharp 1.6 Roller Rockers
AFR 180 heads
Lingenfelter runners and intake
Ported plenum
52mm throttle body
Hooker ceramic headers
Magnaflow 3" exhaust
EGR and smog removed
Custom tune by PCM4LESS
TCI street fighter transmission
2,600 stall

Non-Engine Stuff

All bushings in car are new polyurthane
Sub frame connectors
Boxed lower control arms
Lower control arm brackets
Eibach springs

Thanks for your help!!!
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Old Apr 6, 2010 | 05:41 PM
  #2  
Atilla the Fun's Avatar
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From: Northern Utah
Car: seeking '90.5-'92 'bird hardtop
Engine: several
Transmission: none
Axle/Gears: none
Re: Combo HP/Torque Question

I'll hazard a vague guess of 320-ish HP, and 360-ish tq, at the tires.
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Old Apr 7, 2010 | 07:49 AM
  #3  
wildjyoung's Avatar
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From: Northern Kentucky
Car: 1991 Trans Am GTA, 2003 Grand Am GT
Engine: 350 Tune Port
Transmission: 700R4
Re: Combo HP/Torque Question

Thank you!

I am hoping for 350 RWHP and over 400 TQ. However, I realize that is probably a little aggressive. I will post results when I get them.

Josh
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Old Apr 7, 2010 | 08:04 AM
  #4  
Atilla the Fun's Avatar
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Joined: Oct 2008
Posts: 6,319
Likes: 19
From: Northern Utah
Car: seeking '90.5-'92 'bird hardtop
Engine: several
Transmission: none
Axle/Gears: none
Re: Combo HP/Torque Question

If you have a converter that's built to be locked under load, and if you lock it on the dyno, then your hopes would be realistic. Or if you swap to a manual trans.
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Old Jul 6, 2011 | 05:52 PM
  #5  
wildjyoung's Avatar
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Joined: Jul 2005
Posts: 443
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From: Northern Kentucky
Car: 1991 Trans Am GTA, 2003 Grand Am GT
Engine: 350 Tune Port
Transmission: 700R4
Re: Combo HP/Torque Question

Well, the engine is complete and dyno tuned. I attached the slip.

I must say I was disappointed.

What is everyone's thoughts on the numbers? Should it have been higher?
Attached Files
File Type: pdf
Dyno.pdf (26.6 KB, 112 views)
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Old Jul 6, 2011 | 08:18 PM
  #6  
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Re: Combo HP/Torque Question

For your parts, I would want to see 325 RWHP.
The first thing I would do is measure that torque converter. If it's 12", then I'd re-test with a tighter converter.
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