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Fuel injector size question

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Old 09-28-2015, 12:48 PM
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Default Fuel injector size question

I'm planning on building a stoker motor just haven't decided what size yet.

At this point I still have the stock LS1 in the car and will be adding the following mods:

FAST 92 with LS2 90mm TB
Headers with high flow cats
TSP Stage 2.5 heads
EG Whiplash cam

With the above as mentioned, what size injectors should I buy that will work properly and still have room to grow ?



Thanks for your input and help.

Old 09-28-2015, 07:23 PM
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At least 36 42 would work too
Old 09-29-2015, 09:07 AM
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Might as well get the 42's, there pretty cheap to pick up either here or Ebay.
Old 09-29-2015, 09:45 AM
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Originally Posted by MonmouthCtyLS7
Might as well get the 42's, there pretty cheap to pick up either here or Ebay.
they have to be EV1 to fit my LS1 harness, correct ?
Old 09-29-2015, 11:51 AM
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Originally Posted by 2KSS
they have to be EV1 to fit my LS1 harness, correct ?
Yes...
Old 09-29-2015, 12:37 PM
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Something like 44lb/hr injectors would work well, or you could step up to 60lb/hr injectors if more power is in your future plans.
Old 09-29-2015, 01:36 PM
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For heads and cam 60's are overkill. If FI is in your future you'll probably need 80's anyway. Why buy a way more expensive injector if you don't need it.
Old 09-30-2015, 11:31 AM
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36-42lb injectors would support your setup no problem.
Old 09-30-2015, 12:24 PM
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Originally Posted by MonmouthCtyLS7
For heads and cam 60's are overkill. If FI is in your future you'll probably need 80's anyway. Why buy a way more expensive injector if you don't need it.
Plenty of guys running 60lb/hr injectors on turbo and Procharged setups. Also, the 60's are no more expensive in the classified section than the 36-44's.
Old 10-24-2015, 01:16 AM
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I'm using 42# injectors on a 408 stroker currently making around 540ish hp and duty cycle is only around 68-72%



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