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predator tuneing

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Old Aug 7, 2003 | 11:16 PM
  #1  
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Default predator tuneing

I am running 31.4 WOT spark and 925 WOT o2 sensors is this good or should i add more or less spark or fuel. what are the stock readings am i making more power then stock
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Old Aug 8, 2003 | 01:24 AM
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Default Re: predator tuneing

Are you getting any KR? if so, reduce the spark. O2's look a little high but if you can wideband thats the safest and best way to tell what your A/F is. I was running 34.4* @ WOT and 905 on the O2s, no KR, but we ended up reducing the spark so if it see's detontation it wont fry. Not sure what the factory tune is for WOT as for A/F, but you will make most power at about 13.1:1, so you could go a little leaner maybe.
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Old Aug 10, 2003 | 08:27 PM
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Default Re: predator tuneing

I thought most power was 12.6:1
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Old Aug 17, 2003 | 09:16 AM
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Default Re: predator tuneing

I made most power at 12.8:1. It's a little rich, but I'm gonna experiment some more soon.
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Old Aug 18, 2003 | 12:37 PM
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Default Re: predator tuneing

ON a dyno yes, as theres less load, and on street should be around 13:1 give or take a .1
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Old Aug 18, 2003 | 10:19 PM
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Default Re: predator tuneing

from what im told, 30* of spark and 900mV for the o2 numbers. just listen for any detonation at high rpm
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Old Aug 19, 2003 | 11:09 AM
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Default Re: predator tuneing

What exactly does detonation sound like??
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