What would be ideal A/F curve for nitrous throughout the rpm range? After the initial lean spike, how shold the A/F ration develop throughout the power band? Thanks.
Nitrous Ideal A/F
- Thread starter 99Cobra#2468
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just like a blower or turbo below 12.5 is good i like a safe a/f as close to 12:1 as possible without going over. But normaly with most tuners the a/f will start lean with the spike and then come down to like 12:1 then keep going down and getting richer (because of bottle pressure falling down with the nitrous being used) Thats how most are done.
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great feedback, thanks.
this is what it should look like:
most interesting. :beer:FSTMRFR said:
where did u hit the nitrous at? 4250?
what is happening at 5750? the curve shoots up real lean for some reason
thats not the kinda a/f ratio i would want at all.
spike_africa said:
I agree, that curve is too lean for my liking and I would not want that kind of A/F curve on my car on the bottle, but I bet you are making good numbers, after all, lean is mean!
LS1PUSSOUT
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FSTMRFR said:this is what it should look like:
Looks like someone who doesnt have it set up right or is untuned..... A decent lean spike there that could have been somewhat tuned out......then it doesnt get anywhere near 12:1.......Then it looks like when you let off the gas, the residual nitrous in your super long line spike it lean again. The last spike is the scary one..........
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i was gonna say if the graph was A FULL POINT RICHER it would be nice intil the 5,500rpm mark... thats how i would want it.... SAFE SAFE SAFE
Isn't the point of running an AFR of 11.5:1 on Blown Apps for extra cooling. I would think 12.5 would be ideal because Nitrous doesn't need extra fuel to cool cylinder temps. Running extra fuel would just kill power and efficiancy. just my thoughts. I think the graph looks fine up to 5750.
Anyone have a graph of a "good" A/F ratio / curve for nitrous? Thanks.
ok...I see what you mean on the spike...but the car only revs to 5600 rpm....sorry should have said that origionally....low rpm, 1/8 mile car
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