Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!
Sponsored by:
Sponsored by: CARiD

Need engine advice

Old Sep 20, 2007 | 12:43 PM
  #1  
nbays1975's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2007
Posts: 50
Likes: 0
From: Cincinnati Ohio
Car: 88 GTA
Engine: 350 TPI
Transmission: T5
Axle/Gears: 10 bolt rear w/3.73 richmond gears
Need engine advice

I recently purchased a TA and have been busy giving it the TLC it deserves. It's cleaning up quite nicely. However, The engine needs some (a lot) tuning and I'm not at all an expert in that area. Here are the relevant specs:
383 ci
Forged 10.5;1 pistons
Ported edelbrock performer heads (170cc intake?)
1.5 roller rockers
Comp Cams Hyd. roller 230/234 528/539 110lsa
30lb injectors
52mm throttlebody
Ram Air setup
SLP Intake
1 3/4 shorty headers with 3" catback
T5 Manual transmission.
10 bolt rear w/3.73 gears
First, what do you think of this engine setup. Is it a good combo? Is there anything that I should change? How much HP/Torque should this produce.
I'm not looking for exact answers, but I need some kind of idea on what to expect and where to start tuning and/or changing components.
Thanks, Nick
Reply
Old Sep 20, 2007 | 03:54 PM
  #2  
Burntz's Avatar
Member
 
Joined: Jul 2006
Posts: 168
Likes: 0
From: Lincoln, Nebraska
Car: 1986 Trans Am
Engine: Mild 10:1 355.
Transmission: T-5
Axle/Gears: 9 bolt
Re: Need engine advice

Its fuel injected, with a MAF setup?
Reply
Old Sep 20, 2007 | 05:12 PM
  #3  
nbays1975's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2007
Posts: 50
Likes: 0
From: Cincinnati Ohio
Car: 88 GTA
Engine: 350 TPI
Transmission: T5
Axle/Gears: 10 bolt rear w/3.73 richmond gears
Re: Need engine advice

It's a 1988 TA, so I believe it uses a MAF. It is a TPI setup.
Reply
Old Sep 20, 2007 | 05:23 PM
  #4  
SpitotRs305's Avatar
Supreme Member
 
Joined: Oct 2006
Posts: 1,974
Likes: 0
Car: 91 RS
Engine: 350 vortec
Transmission: T-5
Axle/Gears: not the best not the worst
Re: Need engine advice

that is a pretty big cam... especially for a Stock FI setup
Reply
Old Sep 20, 2007 | 05:35 PM
  #5  
rhamm1320's Avatar
Junior Member
 
Joined: Mar 2004
Posts: 46
Likes: 0
Re: Need engine advice

Originally Posted by nbays1975
How much HP/Torque should this produce.
Since your already starting out with a 383, thats a nice boost to your torque curve. Here is the computer dyno run...



Reply
Old Sep 24, 2007 | 11:11 AM
  #6  
nbays1975's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2007
Posts: 50
Likes: 0
From: Cincinnati Ohio
Car: 88 GTA
Engine: 350 TPI
Transmission: T5
Axle/Gears: 10 bolt rear w/3.73 richmond gears
Re: Need engine advice

Thanks for the dyno. I was hoping the HP would be a little higher, but the torque looks great.

that is a pretty big cam... especially for a Stock FI setup
The full injection is not exactly stock. The injectors are much larger (30 lb/hr) and the intake plenum is an SLP. Also, I believe the fuel rails are different. I'm assuming/hoping that the fi was setup to match the cam. However, it does seem to run rich. I'm guessing thats due to the cam.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
jhawkeye
Engine Swap
5
May 25, 2022 06:33 PM
theshackle
Tech / General Engine
4
Mar 5, 2017 06:37 PM
dutch930
Engine Swap
5
Sep 11, 2015 06:58 AM
E Rod
LTX and LSX
5
Aug 28, 2015 05:17 AM
bradleydeanuhl
DFI and ECM
4
Aug 12, 2015 11:48 AM


Thread Tools
Search this Thread

All times are GMT -5. The time now is 07:04 AM.