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LT1-LT4 Modifications 1993-97 Gen II Small Block V8

bigger injectors

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Old 10-12-2014, 04:44 PM
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Default bigger injectors
what cars had bigger injectors? not fbodys
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Old 10-12-2014, 06:40 PM
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Gm tolerance on a set of injectors was 10% variation. Why bother with old used injectors with such imbalance?
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Old 10-12-2014, 06:47 PM
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Brother manager at salvage yard thought my could get some free.
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Old 10-13-2014, 08:46 AM
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Any GM car with a Supercharged 3800 should have 36LB injectors.

FYI, I hope you have mods that warrant bigger injectors. As in, HCI or more. Injectors do nothing for a bolt on car.
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Old 10-13-2014, 11:03 AM
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Cobras and lightnings came with larger injectors...
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Old 10-14-2014, 07:56 PM
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I've read about some improvements in idle and smoothness upgrading from LT1 to LS1 injectors. For a bolt on or minor mods car that might be a good idea, I'm picking up a set of low mile LS1's to throw in my car.
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Old 10-14-2014, 08:40 PM
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LS engines use higher fuel pressure, so many of them while rated 28lbs are not any larger than LT1 injectors.
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Old 10-15-2014, 11:10 AM
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That's true so nevermind that haha.
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Old 10-15-2014, 12:05 PM
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Originally Posted by 96capricemgr
LS engines use higher fuel pressure, so many of them while rated 28lbs are not any larger than LT1 injectors.
While that may be true the spray pattern might be different though. ie four holes versus two or one....
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Old 10-15-2014, 07:59 PM
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I wasn't commenting on patterns or anything other than the size at given pressure. The OP wanted junkyard larger injectors.
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Old 10-17-2014, 10:25 AM
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LT1 injectors have four holes.
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Old 10-21-2014, 02:42 PM
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Originally Posted by 96capricemgr
LS engines use higher fuel pressure, so many of them while rated 28lbs are not any larger than LT1 injectors.
Don't LT1s run at 60 PSI?
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Old 10-21-2014, 02:50 PM
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Originally Posted by MuhThugga
Don't LT1s run at 60 PSI?
Operating PSI is 1450 to 2175psi.
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Old 10-21-2014, 08:47 PM
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Stock is 43.5 for an LT1, 58 for the LS engines.
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Old 10-22-2014, 05:33 AM
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Originally Posted by Shownomercy
Operating PSI is 1450 to 2175psi.
Why are you being a Richard?
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Old 10-22-2014, 08:28 AM
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Originally Posted by 96capricemgr
Stock is 43.5 for an LT1, 58 for the LS engines.
Ah. I forgot about the pressure regulator on the back of the intake.
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