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Thread: CAMS

  1. #1
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    I'm looking into getting some cams for my bigport but don't want to get an aftermarket ecu.
    what are the biggest pair i can get to run on my stock ecu?

  • #2
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    with an MAP 4age i am unsure of the limit, but think its 264 ??

    with a piggyback ecu such as an SAFC II my friend was able to run 272s pretty well.

    i have heard the AFM 4ages are able to handle slightly bigger cams on a stock ECU, although it could be a myth.

    edit.. my statement only takes into account Duration, and not Lift.

  • #3
    Senior Member Sprinter86's Avatar
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    Distant00 on here is running, i think he said 278's on a smallport with stock ecu, seems fine, idling struggles more than usual when cold though.

  • #4
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    read:

    http://www.billzilla.org/4agmods.htm

    should answer your question

    enjoy

  • #5
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    A mate runs a stage 3 kit in his smallport..not sure of the duration but pretty sure its around 278....its goes well...but it struggles at idle and low revs....his ecu is stock.

    A good computer would net alot of gains though...so maybe save some more doe and get it all done....

  • #6
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    also depends on lift and the shape of the cam lobes ....

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