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

injector question

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Old Apr 17, 2009 | 08:39 AM
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From: Lawrenceville GA
Default injector question

car is down again, probably optispark again, third in 3 years, going with a lifetime warranty. This time going to check injectors and wondering about pounds of pressure, seeing them from 22 lbs. to 32 and more.
My car is completelt stock except for Corsa, 3:73 diff and shift kit in trans. What is a good brand and what is the pressure to go with and maybe why?
Thanks all
Jim
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Old Apr 17, 2009 | 08:58 AM
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Get with Jon (FIC Injectors) he'll size you up for what your exact needs are. Go with a set of Bosh III as so many other CF members have....you won't be disappointed.

http://forums.corvetteforum.com/memb...injectors.html

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Old Apr 17, 2009 | 09:10 AM
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Stay with your stock rated injectors and fuel pressure. Test the injectos hot and cold against spec. Don't just assume they are bad. I am still running the original stock Multec injectors on my 1989.

Last edited by BADDUCK; Apr 17, 2009 at 09:12 AM.
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Old Apr 17, 2009 | 09:21 AM
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Originally Posted by jispr
car is down again, probably optispark again, third in 3 years, going with a lifetime warranty. This time going to check injectors and wondering about pounds of pressure, seeing them from 22 lbs. to 32 and more.
My car is completelt stock except for Corsa, 3:73 diff and shift kit in trans. What is a good brand and what is the pressure to go with and maybe why?
Thanks all
Jim
the 93 uses a set that we only sell for the 93.. But, first check them with an ohm meter to make sure the coils are in range 14-16 ohms +-.5.. Any below 10 can shut the ECU down and keep it from starting.. Use a timing light and see if you are getting spark to the plugs before ripping out the opti again
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