Tunning help with N2O

I have a 03 Xtreme 4.3 that iam playing with a 100 shot of N20. I am getting a little Spark Knock right after the 1/2 shift. I was wondering if someone could give me a little know lesson on how to tune a little better and recommendations.

Thanks.:burnout:


(Noob in training) To HP tuners.
Wet NOS
No timing pulled yet (recommendations for best approach to retard timing)
93 pump gas
No wide band O2

not a nitrous tuning expert but when one gets here they will want to know if its wet or dry shot , what AFR you are running on spray , and are you pulling any timing from your tune when spraying ?

typically 2-3* pulled per 50 shot

Isn't the recommendation usually like 2 degrees for every 50hp?

Yeah i have been running 110 octane to avoid this till now. Im a bit of a noob to this and just got my tuner and would like to step down to some 93 or 100 octane. I would like some help step by step on the best way to go about taking timing out.


Thanks Shawn.

100 shot is tiny, pull 2-3 degrees and call it a day, 110 octane is not nessessary. 4.3s are not high compression

Quote:

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Originally Posted by XTREME80

No timing pulled yet (recommendations for best approach to retard timing)

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You can pull 3* from the entire table, select all, put a -3 in the box up top and hit the + sign. Or use excel

Or you can drive and see where you are under juice and select those sells and pull timing the same way.

Thanks fellas. Thats more or less how i was going to do it was 3* across the board.