Which Injectors should I buy?
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Supreme Member
iTrader: (1)
Joined: Apr 2005
Posts: 1,165
Likes: 1
From: Valdosta, GA
Car: 1991 Trans Am GTA
Engine: L98(5.7 L TPI)
Transmission: 700r4(A4)
Axle/Gears: G80 RPO, 3:23s, Auburn Racer's Diff
Which Injectors should I buy?
Ladies and Gents,
I own a 1991 GTA with a 350 TPI.
One of my fuel injectors is shot and I have a bad O2 sensor. My motor is mostly stock. But, I have aspirations of future mods (maybe heads, maybe cam). I think it's time to replace all of the injectors. What size/brand should I go with? I want something reliable that will support more horsepower. My question is, if I go with bigger injectors, will my TPI computer be able to adapt?
Also, should I take this time to do any other upgrades or routine maintenance on my motor? Is there anything else that should be replaced while the motor is torn apart?
Should I replace or upgrade the fuel rails? Should I add a fuel pressure regulator? (Will a virtually stock motor benefit from upgraded fuel rails or a fuel pressure regulator?)
Also, is there a make/brand of O2 sensor you all reccomend?
Thanks for your help!
Bill
I own a 1991 GTA with a 350 TPI.
One of my fuel injectors is shot and I have a bad O2 sensor. My motor is mostly stock. But, I have aspirations of future mods (maybe heads, maybe cam). I think it's time to replace all of the injectors. What size/brand should I go with? I want something reliable that will support more horsepower. My question is, if I go with bigger injectors, will my TPI computer be able to adapt?
Also, should I take this time to do any other upgrades or routine maintenance on my motor? Is there anything else that should be replaced while the motor is torn apart?
Should I replace or upgrade the fuel rails? Should I add a fuel pressure regulator? (Will a virtually stock motor benefit from upgraded fuel rails or a fuel pressure regulator?)
Also, is there a make/brand of O2 sensor you all reccomend?
Thanks for your help!
Bill
Last edited by wgripp; Mar 15, 2014 at 05:17 AM.
Member
Joined: Dec 2010
Posts: 334
Likes: 0
From: Near Wichita Ks
Car: 1997 K1500 SS/SB
Engine: LT1 with TPI on top
Transmission: 4L60E/np241,
Axle/Gears: 3.73
Re: Which Injectors should I buy?
The experts have spoken
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Last edited by Tinbender59; Mar 14, 2014 at 11:05 PM.
Thread Starter
Supreme Member
iTrader: (1)
Joined: Apr 2005
Posts: 1,165
Likes: 1
From: Valdosta, GA
Car: 1991 Trans Am GTA
Engine: L98(5.7 L TPI)
Transmission: 700r4(A4)
Axle/Gears: G80 RPO, 3:23s, Auburn Racer's Diff
Re: Which Injectors should I buy?
Julie at Southbay hooked me up with eight Bosch fuel injectors and a FelPro gasket kit. They will ship Monday.
Thanks, Julie!
Thanks, Julie!
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