I have a 1987 GTA 350 that had a engine fire. I have a chance to buy LT1 Injectors. Would these work in the GTA, or should i look else where? There off of a 1994 Z28 LT1.

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89 Iroc 350 TPI,
Forged pistions
Comp roller Cam .510 lift 230dur
Flowmaster exhaust
Dart Iron Eagle heads 200cc runners 64cc chambers
MINI RAM SOON!!!!!
stock TPI for now 24# inj
87 Trans Am GTA 350 TPI
had engine fire hope to get running soon
Flowmaster exhaust

[This message has been edited by AaronIROCZ (edited June 18, 2001).]

 

They will work fine, but they are 24#s and your stock ones were 22#s.

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'94 Corvette Admiral Blue
-==ICON Motorsports==-
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'91 Z28 Blue/Silver ZZ4/ZF6
335.9 rwhp 374.9 rwtorque

 

yeah they'll work.if the motor is stock you mite want to get an adjustable fuel pressure regulater.the 24lbs injectors my run alittle rich

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1991 banditt2 #130 of 600
Project 350 TPI Banditt II
http://www.street-dawg-racing.cityslide.com
http://discussion-board.com/GreaterC...dyAssociation/
http://www.cincyspeed.com/

 

The computer will take fuel out if it senses a rich condition. Don't worry about the AFPR unless you want one.



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Mike L.

"If it feels good - stay in it "

1987 IROC Z TPI 350 A4 3.27 Borg-Warner.

Mods: 2300-2500 Stall Converter, Shift Kit(GM parts), TPI Specialties Stage 3 PROM, Modified Airbox w/ K&N's, homemade cold air, Relocated MAT sensor, Gutted MAF, 160* thermostat, Accel 8mm Wires, bypassed TB coolant, Flowmaster 3 chamber single 3" in/out muffler, 3" MAC mandrel intermediate, custom dual !cat Y-pipe. airfoil, ported plenum. !smog

http://www.MichaelLasiuta.home.att.net

**BOYCOTT LAPEER DRAGWAY**

 

Not always. The computer will think the injectors are 22lbs, so it can only compensate so much.

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1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.23 @ 107.62 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-

 

no, the computer only thinks it has 22lbs injectors in open loop. in closed loop it doesnt have a "set" lb injector. it just compensates for rich and lean conditions at the o2 sensor by either making shorter or longer pulse widths to the injector. ive got LT1 injectors on my L98 and it runs a little rich when i first start it, but once it warms up it runs right around 14.7 on my autometer air/fuel ratio gauge


[This message has been edited by whiterocz (edited June 19, 2001).]

 

Don't forget at WOT the system goes into an open loop. So the engine will run a little rich when you've got your foot in it. If you're interested in tweaking in the times, get an AFR, otherwise don't worry about it.

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Pat McGrath '89 Formula LB9, T-5

 

Right, but like I said, it can only compensate so much. If the car is running too rich, the computer will reach its limits before it can take out enough fuel.

 

Would I have to reprogram the chip?

------------------
89 Iroc 350 TPI,
Forged pistions
Comp roller Cam .510 lift 230dur
Flowmaster exhaust
Dart Iron Eagle heads 200cc runners 64cc chambers
MINI RAM SOON!!!!!
stock TPI for now 24# inj
87 Trans Am GTA 350 TPI
had engine fire hope to get running soon
Flowmaster exhaust

 

Would I have to reprogram the chip?

------------------
89 Iroc 350 TPI,
Forged pistions
Comp roller Cam .510 lift 230dur
Flowmaster exhaust
Dart Iron Eagle heads 200cc runners 64cc chambers
MINI RAM SOON!!!!!
stock TPI for now 24# inj
87 Trans Am GTA 350 TPI
had engine fire hope to get running soon
Flowmaster exhaust