TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
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tpi or carb

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Old Nov 29, 2009 | 11:31 PM
  #1  
mmyers_417's Avatar
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Joined: Oct 2007
Posts: 50
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From: Clayton, NJ
Car: 88 formula; 06 cobalt ss
Engine: 305 tpi; 2.4 ecotec
Transmission: WC T-5; F23
Axle/Gears: 3.45 posi; 3.84
tpi or carb

Trying to get some horespower for a decent price if i stay tpi i would need a new intake, burn a chip, which seems hard, buy injectors, and would be expensive. where i could go carb, rev higher making more horsepower, alot cheaper and could tune it myself easily.whats your guys opinion
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Old Nov 30, 2009 | 01:29 AM
  #2  
vetteoz's Avatar
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Joined: Apr 2005
Posts: 7,736
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: tpi or carb

You won't get agreement on any forum

Carb; easy Hp , low cost , good for WOT perf
EFI ; better cold start , better fuel economy , better driveability under any conditions
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Old Nov 30, 2009 | 10:41 AM
  #3  
ploegi's Avatar
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Joined: Jul 1999
Posts: 1,556
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From: Adrian, Mi, USA
Car: 1988 Pontiac Firebird Formula
Engine: 5.7 TPI
Transmission: 700R4
Re: tpi or carb

Originally Posted by vetteoz
You won't get agreement on any forum

Carb; easy Hp , low cost , good for WOT perf
EFI ; better cold start , better fuel economy , better driveability under any conditions
This.

For a daily driver, EFI is going to be a better choice..... Just depends on what you want, and how much you are willing to spend. Burning PROMS seems to be an addictive passtime, and once you get started, most folks find it is easier than they had thought... Plus, there is plenty of support to be had here.
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Old Nov 30, 2009 | 02:11 PM
  #4  
mmyers_417's Avatar
Thread Starter
Junior Member
 
Joined: Oct 2007
Posts: 50
Likes: 0
From: Clayton, NJ
Car: 88 formula; 06 cobalt ss
Engine: 305 tpi; 2.4 ecotec
Transmission: WC T-5; F23
Axle/Gears: 3.45 posi; 3.84
Re: tpi or carb

ya ill definetly have to look into the whole prom burning process might be intersting to learn
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