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What are good A/F Ratios

M

minecat

Well-known member
Was wondering if some of you turbo guys could tell me what your A/F ratios are at Idle Midrange and top end and what is the safest for M1000 pump gasser

Thanks
 
I know for race gas it is 12.0-12.2 when spooled up is about max, and 14.5-15.0 max for mid throttle trail riding,that's what I like to see.
 
It appears that my o2 numbers are in the ranges. But down the trail I get egts around 1350 and then I back off. I do not know how high they would go. Is this normal? I add fuel to get egt's under 1300 and it does not run clean. The egt's just continue to rise at part throttle.
 
It appears that my o2 numbers are in the ranges. But down the trail I get egts around 1350 and then I back off. I do not know how high they would go. Is this normal? I add fuel to get egt's under 1300 and it does not run clean. The egt's just continue to rise at part throttle.

That is normal on the M8. It happends around 5500-7000 rpm. It`s a mapping issue around the ex valves opening times. You could fuel it as much you want, it only overfuels at the end, temps are still there.
 
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