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C4 Corvettes, 1984 - 1996
C4 Tech/Performance
Injector rating

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

Injector rating

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Old

Jul 27, 2006 | 03:05 AM

#1

KJones

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Joined: Nov 1999

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From: Eureka NV

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Injector rating

Can someone tell me what the gph rating is on an 85 tuned port? How about fuel pressure? Maybe 40 lbs or so???

(hope i don't get slapped around like i did on my last post!) hahaha

Thanks,

Ken

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Old

Jul 27, 2006 | 03:09 AM

#2

Demonic85

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From: sw Ohio

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Its either 21 lb or 23 lb, i'm not 100% sure which. Fuel pressure should be around 38-43 psi.

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Old

Jul 27, 2006 | 04:04 AM

#3

jan-erik

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From: Oslo, Norway

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Hi.
I have an 85 4+3. As far as I have read the injectors are 24lbs/hr and the stock fuel pressure is about 36 psi. I have increased the pressure to about 41 as I have modified the intake and cam and ported the heads a bit

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Old

Jul 27, 2006 | 11:56 AM

#4

vader86

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From: Athens AL

C7 of the Year - Unmodified Finalist 2021

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They are 24lb/hr and should be in the mid/upper 30s though I dont know the exact number.

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Old

Jul 27, 2006 | 01:10 PM

#5

KJones

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Joined: Nov 1999

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From: Eureka NV

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Thanks for the responses!

It gets me in the ball park.

I will work with those numbers.

Thanks again,

Ken

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