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new cam tuning

This is a discussion on new cam tuning within the Computer & Tuning forums, part of the LSx Technical Help Section category; today I ordered a new cam for my 04 a4 GTO. its a hr284 grind, cam specs are = 220/224 ...

  1. #1
    cutting and welding mark21742's Avatar
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    hugger orange
    2004

    new cam tuning

    today I ordered a new cam for my 04 a4 GTO. its a hr284 grind, cam specs are = 220/224 .570/.580 112lsa.
    I already have the car tuned via a friend's hptuner program for the parts I have installed now = pacesetter LT's, 3" dual exhaust, CAI/ram air, p&p tb, 918comp springs, 2,800 tci stall,bumped the timing tables and deleted TM.
    my question is with the new cam, will the car still start and run good enough for us to tune it, or do I need to modify the tune before first fireup.
    thank you guys!

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  3. #3
    cutting and welding mark21742's Avatar
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    hugger orange
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    Quote Originally Posted by Frost View Post
    it will almost certainly start up on the stock file
    ok good that's what I wanted to hear. not expecting it run perfect without tuning, but with it driveable we can take a weelend to get her right and do some more learning.
    thanks again Frost!

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    cutting and welding mark21742's Avatar
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    hugger orange
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    looks like I'm also going to be porting my stock 241 heads too when starting my tune where would the best place be to start and any advice?
    I know I shouldn't go over 85 % duty cycle on my injectors. should I still be ok with my stock injectors on this setup or will I be close to maxing them out?
    thanks again!

  5. #5
    TunedbyFrost.com Tuner Frost's Avatar
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    I begin with a base and then get the cars up to hot idle so that the base airflow can be setup at the TB. Once the IAC counts are where you want and the car will idle fine, move on to VE...

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    cutting and welding mark21742's Avatar
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    hugger orange
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    Quote Originally Posted by Frost View Post
    I begin with a base and then get the cars up to hot idle so that the base airflow can be setup at the TB. Once the IAC counts are where you want and the car will idle fine, move on to VE...
    thanks again Frost....you don't sleep much either do you? lol

  7. #7
    TunedbyFrost.com Tuner Frost's Avatar
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    Look for (should be ideally) IAC counts in the 50-70 region at hot idle with that cam in this weather. Int he summer time they will drop lower with heat, and you don't want to go too low with them, you don't want the IAC hitting 0 in the heat and losing control of clamping idle.

  8. #8
    Veteran 0rion's Avatar
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    if you have trouble keeping it running you can also raise the idle rpm's a tad

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    cutting and welding mark21742's Avatar
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    hugger orange
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    ok thanks guys!

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