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Thread: Cammed 5.3 with nelson performance 91 tune

  1. #1
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    Cammed 5.3 with nelson performance 91 tune

    Hoping someone who knows or one of the gurus themselves will chime in I got my 5.3 with vinci cam 3200 stall and 4.11 with 91 octane tune. I have my nitrous express shark nozzle with a 62 nitrous and a 38 fuel which is for a 150 shot but it is rich on the fuel side. Wondering if I can spray the just the way it is with my tune I got or if I should back it down to a 100 shot at the track.

  2. #2
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    Quote Originally Posted by 94RCSB View Post
    Hoping someone who knows or one of the gurus themselves will chime in I got my 5.3 with vinci cam 3200 stall and 4.11 with 91 octane tune. I have my nitrous express shark nozzle with a 62 nitrous and a 38 fuel which is for a 150 shot but it is rich on the fuel side. Wondering if I can spray the just the way it is with my tune I got or if I should back it down to a 100 shot at the track.
    whats the AFR running NA? if the AFR is fat spray it 100 then if its still fat spray a 150 but dont change the fuel jets just the nitrous jets, i take it you do have a wideband?
    Simple: 408 on steroids!
    single digits coming soon!

  3. #3
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    No wideband installed

  4. #4
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    you should be running a 62N/36F, a 38 on the fuel would be rich, for 100hp you need a 52N/28F
    ↓↓↓click pic to go to garage↓↓↓

    408, WCCHL92s, nelson tune,4L80e 3600 Circle D,
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  5. #5
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    Alright got my jets it is set up for a 125 per nitrous express chart we wi see what it is like on Friday.

  6. #6
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    only real way to tell with nitrous is to pull the plugs after every pass and read them. adjust accordingly
    2005 GMC RST *sold
    2006 Silverado SS with nawz

  7. #7
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    Its tuned for nitrous right?
    THEY CALL ME G.

    AZRAEL
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