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Injector size

This is a discussion on Injector size within the LT1 forums, part of the Vehicle Specific category; I just ordered a forged 377 stroker kit, and heads and intake,EZ dyno says about 460 rwhp I have 30# ...

  1. #1
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    1994 camaro low 12's

    Injector size

    I just ordered a forged 377 stroker kit, and heads and intake,EZ dyno says about 460 rwhp I have 30# injectors What am I going to need to support this power?

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    Senior Member 5.0THIS's Avatar
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    95 Z28

    Just a guess off the top of my head, but I'd say 42s would work for 460rwhp.

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    Member jasonisdn's Avatar
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    Quote Originally Posted by skipjobe View Post
    I just ordered a forged 377 stroker kit, and heads and intake,EZ dyno says about 460 rwhp I have 30# injectors What am I going to need to support this power?
    well with 460 rwhp and not knowing what type of tranny they dyno test with. i used 20% drivetrain loss and got 552 flywheel hp so i
    d say @80% duty cycle you need around 43 or higher. then you get in to the factor are you gonna ever spray or boost it later? if so you need to go bigger with a driver and not have to buy injectors 2 times. so many factors and so many options. i just had to use that, looked so funny

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    LTX N20LT4's Avatar
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    Quote Originally Posted by jasonisdn View Post
    well with 460 rwhp and not knowing what type of tranny they dyno test with. i used 20% drivetrain loss and got 552 flywheel hp so i
    d say @80% duty cycle you need around 43 or higher. then you get in to the factor are you gonna ever spray or boost it later? if so you need to go bigger with a driver and not have to buy injectors 2 times. so many factors and so many options. i just had to use that, looked so funny
    36lbs./hr, like the SVO units, will work perfectly for 460rwhp.

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    Member jasonisdn's Avatar
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    Quote Originally Posted by N20LT4 View Post
    36lbs./hr, like the SVO units, will work perfectly for 460rwhp.
    where did you get your figures at? 36lbers should feed 460 flywheel hp at 80% duty cycle. it safer to go bigger and not hit close to injector max duty cycle , due to injector lock up.

  6. #6
    Junior Member 95TA383's Avatar
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    I would go with 50's always having more room for fuel is better then running out. Im runnen 44's right now and they work fine. Your 30's def. wont support it.

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