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Old 06-25-2009, 07:07 PM   #1
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injector size?
i was just woundering how do you tell what poundage your injectors are. is there a number or mark that can tell you

Thanks
steve
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Old 07-01-2009, 10:46 AM   #2
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Re: injector size?
I don't know how to tell by looking but for a stock 5.7 you need 22# injectors
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Old 07-01-2009, 07:14 PM   #3
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Re: injector size?
yea i need to know by looking at it i already know what the stock LB is thanks tho
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Old 07-01-2009, 07:44 PM   #4
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Re: injector size?
The only real way to tell is take the number that is stamped or printed on the injector and then try and crossreference it. There are some sites that list specs by part number just try googling it.
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Old 07-01-2009, 10:01 PM   #5
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Re: injector size?
ah ok i was afraid of that ok sounds good
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Old 07-02-2009, 12:53 AM   #6
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Re: injector size?
From an earlier post by one of the moderators:

Fuel injectors from 1985 - 1992
LB9
85-86 (1st Des) 17110872 (Bosch) (Ident by RP logo on side of Injector)
85-88 (2nd Des) 10108480 (Lucas)
87-88 (1st Des) 17111960 (Bosch) (Ident by RP logo on side of Injector)
89-92 17112283 (Stamped 5235435 or 86542)
89-92 17112284 (Stamped 5235434 or 86543)

L98
87-88 (1st Des) 17111961 (Bosch) (Ident by RP logo on side of Injector)
85-88 (2nd Des) 10108481 (Lucas) (Identified by "CAV" on side of injector)
89-92 17112285 (Stamped 5235437) OEM Injector # 17086544
89-92 17112286 (Stamped 5235436) OEM Injector # 17086545

LB8 (2.8L V6)
85-89 17111297 (Stamped 5235210)

LHO (3.1L V6)
90-92 17102747

3.8L Turbo
89-89 25519365


I believe your original injectors would be the Multec units built by GM, not a very reliable piece in general. They are usually gray in color.
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Old 07-02-2009, 05:58 PM   #7
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Re: injector size?
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Originally Posted by xxx3man` View Post
i was just woundering how do you tell what poundage your injectors are. is there a number or mark that can tell you

Thanks
steve
Hi Steve, if you can get the numbers off of the injectors, and tell me what kind of horsepower you are running, I can tell you what size the injectors are.
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Old 07-03-2009, 08:24 AM   #8
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Re: injector size?
ok let me look to see what the numbers are and i will post them when i get a chance
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Old 07-03-2009, 10:01 AM   #9
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Re: injector size?
ok great
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Old 07-03-2009, 04:36 PM   #10
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Re: injector size?
ok so on this one there are 2 different numbers on the 2 sides first side is:
0 280 150 561 there is also a 957 on the plug and a 391 in the corner

on the other side is says:
fote-9f593-d9b they are pink purple in color at the top and they are ford brand
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Old 07-03-2009, 05:12 PM   #11
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Re: injector size?
They are 22lb injectors at 43.5psi
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Old 07-04-2009, 03:17 PM   #12
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Re: injector size?
nice thanks for that how did you find that out
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Old 07-04-2009, 04:07 PM   #13
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Re: injector size?
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nice thanks for that how did you find that out
my company is SouthBay Fuel Injectors.....this is what I do
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Old 07-05-2009, 06:15 PM   #14
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Re: injector size?
oh nice good to know someone that works at a place like that do you guys do cleaning and testing on them as well
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Old 07-05-2009, 06:16 PM   #15
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Re: injector size?
nm answered my own question i might have more questions for you later about the cleaning
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Old 07-05-2009, 11:30 PM   #16
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Re: injector size?
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nm answered my own question i might have more questions for you later about the cleaning
no problem. Contact us at anytime.
PM
info@southbayfuelinjectors.com
516-492-6504
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Old 07-06-2009, 12:35 PM   #17
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Re: injector size?
whats a good recommended replacement on a relatively stock car(bolt on 350 TPI, no internal work)??? 92 GTA btw
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Old 07-06-2009, 02:40 PM   #18
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Re: injector size?
we like the bosch 22lb design lll's. Nothing but great reviews
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Old 07-07-2009, 12:44 AM   #19
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Re: injector size?
thanks, may want to get some of them soon, odds are my factorys are worn out/inefficient
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Old 07-07-2009, 12:44 AM
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