C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Couple 1985 injector questions

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Old Jul 16, 2006 | 12:15 AM
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From: Canton GA
Default Couple 1985 injector questions

#1) What lb/hr are the stock 85 injectors rated for?

#2) What lb/hr are the stock 86 injectors rated for?

#3) I've got some 1986 stock injectors, and when I pulled the 85's, there is quite an obvious difference in length, and the end (that goes into the manifold) is different too... Will these work? The clip and o-rings are in the same positions, but it is shorter...


Thanks guys.
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Old Jul 16, 2006 | 08:44 PM
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[QUOTE=Thrak]#1) What lb/hr are the stock 85 injectors rated for?
I think same as 86.
#2) What lb/hr are the stock 86 injectors rated for?
19lbs
#3) I've got some 1986 stock injectors, and when I pulled the 85's, there is quite an obvious difference in length, and the end (that goes into the manifold) is different too... Will these work? The clip and o-rings are in the same positions, but it is shorter...
I believe they will- If they are shorter, sounds like someone changed them out. Just make sure they cannot be pulled out of intake ports or o-rings show. Otherwise you can move the clips up one notch.
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Old Jul 16, 2006 | 09:07 PM
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From: 1985 L98, Auto. O'FALLON, IL
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Here is a thread that should answer your questions. I bought the blue top fords from jegs and the car runs great.
http://forums.corvetteforum.com/show...s+onetrackmind
Good luck.
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Old Jul 16, 2006 | 09:55 PM
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thx guys!

I searched.. must've spelled injector wrong. lol...

So, 85 injectors are rated for 24# @ 35psi.

One more question.. since the 86's run 22# at a higher PSI, what PSI is the stock 86 fpr set at?

Last edited by Thrak; Jul 16, 2006 at 09:57 PM.
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Old Jul 17, 2006 | 01:56 AM
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High.
I have an 85 4+3.
The injectors on the 85 is 24 lbs/hr at a fuel pressure about 35-36 psi.
The 86 is less than that think about 22lbs/hr
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