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'89 TBI to TPI conversion?

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Old Feb 24, 2006 | 05:39 AM
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ANDYZ28's Avatar
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From: Midlothian,VA. 23112-6108
Car: 1982 Z-28
Engine: 5.0 w/ Holly carb
Transmission: TH-700R4
'89 TBI to TPI conversion?

What ECM part# will I need to complete my TBI to TPI conversion on my '89 Camaro?
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Old Feb 24, 2006 | 02:42 PM
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From: Mechanicsburg,Pa usa
Car: 92'Camaro RS
Engine: a loud one
Transmission: bolted to the engine
Depends on what set up you're going with. If you're doing a MAF set up you need the 7165 ECM. If you're going speed density you need the 7730 ECM. Go here http://www.chevythunder.com/ for some good info.
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Old Feb 24, 2006 | 06:25 PM
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ANDYZ28's Avatar
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From: Midlothian,VA. 23112-6108
Car: 1982 Z-28
Engine: 5.0 w/ Holly carb
Transmission: TH-700R4
MAF
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Old Feb 26, 2006 | 10:18 AM
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ANDYZ28's Avatar
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From: Midlothian,VA. 23112-6108
Car: 1982 Z-28
Engine: 5.0 w/ Holly carb
Transmission: TH-700R4
'88 and '89 TPI harnesses are the same?

Is the MAF TPI intake base different from Speed Density type?

Last edited by ANDYZ28; Feb 26, 2006 at 11:39 AM.
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Old Feb 26, 2006 | 11:47 AM
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From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
No, the '88 has the cold start injector, but that's a small wire or two. I'm not sure of anything else.

The 87-92 TPI intake manifold bases are all the same.
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Old Feb 26, 2006 | 12:54 PM
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From: miami, florida
Originally posted by Kevin91Z
No, the '88 has the cold start injector, but that's a small wire or two. I'm not sure of anything else.

The 87-92 TPI intake manifold bases are all the same.
From what I heard there is small differences. Cant remember them off the top of my head.
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