Fuel and Ignition Fuel Pumps and Systems, Ignition and Spark Systems

Too big injectors?

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Old Oct 1, 2009 | 04:53 AM
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95Yardbird's Avatar
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Too big injectors?

It says I need 37# injectors. Would it be too much to run 42# injectors? Can you run LSx injectors on a LTx?

Thanks
Old Oct 1, 2009 | 10:02 AM
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42# injectors will work fine in place of 37#ers ......you could run 60#ers for that matter...you just cant run too small of an injector.....the computer needs to be tuned for which ever injector you use. I am not posative if any of the LSx injectors will work with an LTx manifold. I do know that LS1 and LS6 had taller injectors than LS2 and LS7.
Old Oct 1, 2009 | 08:19 PM
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Cool, Do I need to factor in a nos shot to pick injector size?
Old Oct 2, 2009 | 10:19 AM
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Originally Posted by 95Yardbird
Cool, Do I need to factor in a nos shot to pick injector size?
Not if it's a wet system. If it's a dry sytem, yes.

Rich
Old Oct 2, 2009 | 09:39 PM
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Originally Posted by 95Yardbird
It says I need 37# injectors. Would it be too much to run 42# injectors? Can you run LSx injectors on a LTx?

Thanks
LS1 and LT1 injectors are physically interchangeable. However, they are flow rated at different operating pressures. A 28#/HR LS1 injector, flow rated at 58psi, will flow the same as an LT1 24 #/HR injector, when operated at the 43.5psi on a stock LT1.
Old Oct 2, 2009 | 11:53 PM
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All good info thanks
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