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  1. #1

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    S3 Super Charger Injecter Question

    Sorry, I know this has been beat to death, but i can't find Jerry's post. I have a stock ECU and stock intercooler. I am going from RR SC impeller to S3 SC. I think I need to go to 42 lb. injectors. Right? Thanks.


  2. #2
    AKA: Larry lafjax's Avatar
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    Quote Originally Posted by Ultra/RXP View Post
    Sorry, I know this has been beat to death, but i can't find Jerry's post. I have a stock ECU and stock intercooler. I am going from RR SC impeller to S3 SC. I think I need to go to 42 lb. injectors. Right? Thanks.
    Right!!

  3. #3
    El Tartaro luismendez25's Avatar
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    Yes,you difinately need the 42's.

  4. #4
    xenonx's Avatar
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    Quote Originally Posted by Ultra/RXP View Post
    Sorry, I know this has been beat to death, but i can't find Jerry's post. I have a stock ECU and stock intercooler. I am going from RR SC impeller to S3 SC. I think I need to go to 42 lb. injectors. Right? Thanks.
    I seem to recall that is you are running the stock intake, stock IC, stock ECU, you can get away with stock injectors while running S3 SC. As soon as you go Riva stage II intake or larger, you need 42lbs injectors.

    You know that you are going to want more power. Just pony up and get the ECU, 50lbs injectors, 4" intake, and steel washers. You will be glad you did!
    Last edited by xenonx; 08-24-2007 at 11:48 PM.

  5. #5

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    I forgot to mention I have a 4" front intake. Also metal washers.

  6. #6

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    I had been contemplating this myself. I reasoned it out like this. . .

    With the S3 sc and stock intercooler, I predict my ski should run 75 - 76 mph. That's numbers typical of a full Riva Stage 2, which uses an external intercooler but a weenie sc impeller. These run just fine with stock injectors and, in fact, the Riva dyno tests show it to be richer than 12/1 on a wideband. I think it would be ok.

    I asked Jerry this question, and he thought it would be okay in warmer climates (like south LA).

    I'd like to install my wideband on mine, but can't see an easy way to do it.

    Mike

  7. #7
    Rendog's Avatar
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    I have a friend who is running the 42's with the S3 and stock intercooler! He runs a 15/20 and pulls high 73's as far as speed!

  8. #8

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    I went 74.0 using a RR wheel, stock intercooler, and stock injectors. Meeper went 77.0 using the S3 wheel, stock intercooler, and 42 lb injectors. Not sure if he needed the injectors though.

    Mike

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