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

tune with ls1 injectors

Old Sep 24, 2004 | 04:09 PM
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Default tune with ls1 injectors

If I was going to swap my stock injectors for some injectors from a ls1 would I need a tune, or would my car run ok?
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Old Sep 24, 2004 | 04:25 PM
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like ur sig
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Old Sep 24, 2004 | 08:01 PM
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Not familiar with all the specifics of those injectors but as a very good rule you should reprogram for any non-stock injector even if the rating is the same. Tuning is cheap for a 94 though and a good mod.
Why are you looking to swap the injectors?
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Old Sep 24, 2004 | 10:48 PM
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are you sure the ls1 injectors will work with an lt1,would you have to modify fuel rails or anything? j/c
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Old Sep 25, 2004 | 07:52 AM
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Injector lengths(the important dimension) are pretty universal, heck the most common/recommended upgraded to injector for the LT1 is the Ford SVOs. Do not just upgrade injectors for the hell of it though, the aftermarket would make you believe there is power to be had there but it is lies. The only ways you are going to see more power after an injector swap is one the originals were faulty in some way, or two you were maxing out the stockers which are good it in exess of 400hp. Other things you need to watch for when injector shopping, different brands are rated at different pressures so one companies 26lbs could easily flow the same as anothers 24lbs if fed the same pressure. That is one reason they should always be programmed for, another is that electrically they can work different and respond at different speeds the pcm needs to be calibrated for that as well.
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Old Sep 25, 2004 | 08:13 PM
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My 102,000 mile injectors are feeling there age and I can get ls1 injectors for a good price....so I though might as well get some that are a little bigger since im going to change them anyways.
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Old Sep 25, 2004 | 08:38 PM
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BTW LS1 injecters are rated the same as LT1 injecters when checked at the same Pressure. LT1 is 43.5 PSI
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