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  1. #1
    HOSS's Avatar
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    Question RXP Intake Manifold

    Now I see we have another engineer on here which is a great addition to the forms, engineermike. Has or is anyone out there working on an intake for the 4tec? Something with long even runners? Aluminum or composite. This would obviously delete the stock intercooler.


  2. #2

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    Hoss, I've looked at this extensively for my Camaro. Contrary to popular belief, the correct runner length WILL help even a supercharged engine. There was a dyno test in an MM&FF magazine where they showed a 30+ hp improvement on an Vortech supercharged '03 Mustang Cobra just by switching from the stock short-runner intake to a longer runner '01 intake manifold (confusing, I know). Granted, this was on a 700+ hp engine.

    So the intercooler is inside the stock intake manifold?

    Mike

  3. #3
    HOSS's Avatar
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    Thumbs up

    Yes,,,this leads to uneven distribution. Lets talk.

  4. #4
    Gforce's Avatar
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    Yeah she's crammed in there alright....

  5. #5
    Gforce's Avatar
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    What do the intake manifold off of the SC non IC engines look like and would they match up or help??

  6. #6
    Gforce's Avatar
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    Nevermind I checked some cutaways and they all look about the same as the IC ones

  7. #7

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    I think the calculation for optimum runner length is something like 84,000 / desired rpm. For 8100 rpm, the length would be 10.4". I believe this is the optimum length when measured from the valve to the plenum. Does anyone know the stock runner length?

    Mike

  8. #8
    GTXX's Avatar
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    there is a non-IC intake on e-bay for $168 if you want to try it.

  9. #9
    The non IC GTX SC models have a flame arrestor in that spot...PR...

  10. #10
    xenonx's Avatar
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    I brought this up quite some time ago.

    From what I understand, the intake on the non IC models are the same with the exception that they have a backfire screen in place of the interenal IC.

    Now, if someone could improve on the SD design....especially for Stage II/III crowd here, I am sure they would have some buyers if the cost was reasonable given the overall performance increase.

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