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

1990 Replacement Fuel Injectors

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Old Apr 9, 2008 | 06:06 PM
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Default 1990 Replacement Fuel Injectors

Hello,
After sitting for quite a long time with minimal start up, it appears I have lost several injectors. After running her for a while and getting her warmed up, she could barely hold an idle.

Long story short, 3 of the injectors test w/ very low resistance with the multimeter. I would like to replace all 8, and have been quote $180 each from Chevy. Can anyone recommend good quality, reasonably priced alternatives ?

Thank You!

Rusty

PS this is not ZR1

Last edited by Rusty0612; Apr 9, 2008 at 06:08 PM. Reason: Forgot some info
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Old Apr 9, 2008 | 06:21 PM
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You have a PM.
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Old Apr 9, 2008 | 09:30 PM
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I would not but rebuilts or Accels. I just put a set of Trcik Flow in my 88. They work great. Here's a link:

http://store.summitracing.com/egnsea...1&autoview=sku
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Old Apr 9, 2008 | 09:43 PM
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Originally Posted by Kool88vette
I would not but rebuilts or Accels. I just put a set of Trcik Flow in my 88. They work great. Here's a link:

http://store.summitracing.com/egnsea...1&autoview=sku
Funny you should say that, as you know that Trick Flows and Accel's are made on the same assembly line.

I have a set on Accel's on my car, and they work great. Just do not buy the old yellow tops, they are the ones with problems. Do a search, there are several brands available. Forum member Racetronix sells a set of 24 lb injectors for under $300.00. then do a search on Sam Lamb, he is a forum member has a great write up on replacing the injectors w/o removing the runners. You will need a set of "o" rings for the fuel rail. This would also be a good time to install an adjustable fuel pressure regulator.

Good luck, let us know how you make out.

Randy
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Old Apr 9, 2008 | 09:45 PM
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Here we go again!
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Old Apr 9, 2008 | 09:52 PM
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Here's a Link to the injector discussion I started copla days ago.
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Old Apr 9, 2008 | 10:11 PM
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I'm not saying anything.
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Old Apr 9, 2008 | 10:53 PM
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Stock injectors are between 21 and 22 lbs at 43.5 psi.
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Old Apr 9, 2008 | 11:07 PM
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That's true, my 88 had 21.5 lb. injectors. It now has 24lb. I'll check to see if Trick Flow has a 22.

Last edited by Kool88vette; Apr 9, 2008 at 11:09 PM.
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Old Apr 9, 2008 | 11:13 PM
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Nope, Trick Flow is 24 lb. and up.
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Old Apr 10, 2008 | 02:30 AM
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Originally Posted by Rusty0612
Hello,
After sitting for quite a long time with minimal start up, it appears I have lost several injectors. After running her for a while and getting her warmed up, she could barely hold an idle.

Long story short, 3 of the injectors test w/ very low resistance with the multimeter. I would like to replace all 8, and have been quote $180 each from Chevy. Can anyone recommend good quality, reasonably priced alternatives ?

Thank You!

Rusty

PS this is not ZR1
We stock new replacements which use updated disc technology but use a factory-style body for proper fit and appearance.

http://www.racetronix.com/01D036x.html

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Old Apr 10, 2008 | 09:34 AM
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I would get the Racetronix injectors. Some may say it is identical to the Accel but I don't buy that.

Last edited by Kool88vette; Apr 10, 2008 at 09:42 AM.
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Old Apr 10, 2008 | 02:09 PM
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Thank you all for the replies. If I may ask a dumb question......
What is the difference of the lb rating I see 21 up to 24lb. Going for the 24lb's mean a fuel pump in my future ?

Thanks!
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Old Apr 10, 2008 | 02:09 PM
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Originally Posted by Rusty0612
Thank you all for the replies. If I may ask a dumb question......
What is the difference of the lb rating I see 21 up to 24lb. Going for the 24lb's mean a fuel pump in my future ?

Thanks!
Your computer isn't tuned for 24. Stick to stock unless you retune, which seems pointless just for injectors.
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Old Apr 10, 2008 | 02:12 PM
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One more dumb question on injectors... testing with a multimeter is definitive of a bad injector, say reading under 14 ?

Thank you all again, I appreciate the help!
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Old Apr 10, 2008 | 02:13 PM
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Originally Posted by Rusty0612
One more dumb question on injectors... testing with a multimeter is definitive of a bad injector, say reading under 14 ?

Thank you all again, I appreciate the help!
yes.
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Old Apr 10, 2008 | 02:18 PM
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So stock is rated at 21lb ? I do not want to re-tune or make any mods to this car.



Thanks
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Old Apr 10, 2008 | 02:18 PM
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Originally Posted by Rusty0612
So stock is rated at 21lb ? I do not want to re-tune or make any mods to this car.



Thanks
22lb
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Old Apr 10, 2008 | 04:53 PM
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My Vette was tuned for 24lb. Injectors. the Accels were 24lb.
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Old Apr 10, 2008 | 04:59 PM
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Originally Posted by Rusty0612
So stock is rated at 21lb ? I do not want to re-tune or make any mods to this car.



Thanks
I have a new never installed set of 21 lb high quality injectors for sale. They will be perfect for your car and will not need a re-tune.
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