LB9 Injector size?
12-20-2005, 07:47 PM
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Car: 1989 Pontiac Trans Am
Engine: LB9 5.0L TPI
Transmission: T-56 6spd manual
LB9 Injector size?
Does anyone know what size injectors come stock on the LB9 5.0L ? My T/A won't pass emissions and my injectors are definitley the culprit. I don't want to pay big bucks for OEM replacements as aftermarket injectors are more reasonably priced. Any help would be awesome.
12-20-2005, 08:19 PM
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Car: 1986 Camaro SC
Engine: 305 TPI Procharged D1SC
Transmission: Tremec TKO-600
Axle/Gears: Moser 12 Bolt 3.73 posi
19lb an hour, what makes you think it's the injectors causing you not to pass emissions?
12-25-2005, 11:52 PM
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Car: 1989 Pontiac Trans Am
Engine: LB9 5.0L TPI
Transmission: T-56 6spd manual
I know the injectors are the problem because the Hydrocarbon levels are through the roof, and after looking at the previous owners reciepts, I found that he installed 21lb/hr accel injectors on the stock PROM. My next step is to either replace the injectors or have a new PROM with a 21lb/hr calibration burned for it. Both cost about the same, so it's another case of six in one hand, half a dozen in the other. I'll be sure to post when I make my next move. Thanks for the info, I really appreciate it.
12-26-2005, 12:36 AM
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Car: 88 TransAM GTA
Engine: 305 LB9
Transmission: 700R4
Axle/Gears: Stock
Originally posted by patman_no3
My next step is to either replace the injectors or have a new PROM with a 21lb/hr calibration burned for it. Both cost about the same
My next step is to either replace the injectors or have a new PROM with a 21lb/hr calibration burned for it. Both cost about the same
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