AFR clarrification!
#1
AFR clarrification!
Sooo...Need some clarification on something.
I read that it's been found that somewhere between 13.2:1 and 13.4:1 is an ideal AFR for best power. However I'm under the impression that between 11.5:1 and 12.5:1 is the sweet spot of us!
Are there different ideal AFR's between N/A and F/I set-ups?
I read that it's been found that somewhere between 13.2:1 and 13.4:1 is an ideal AFR for best power. However I'm under the impression that between 11.5:1 and 12.5:1 is the sweet spot of us!
Are there different ideal AFR's between N/A and F/I set-ups?
#5
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Sooo...Need some clarification on something.
I read that it's been found that somewhere between 13.2:1 and 13.4:1 is an ideal AFR for best power. However I'm under the impression that between 11.5:1 and 12.5:1 is the sweet spot of us!
Are there different ideal AFR's between N/A and F/I set-ups?
I read that it's been found that somewhere between 13.2:1 and 13.4:1 is an ideal AFR for best power. However I'm under the impression that between 11.5:1 and 12.5:1 is the sweet spot of us!
Are there different ideal AFR's between N/A and F/I set-ups?
generally, n/a like to be around 12.6-12.8 for best power. nitrous should be a little richer, low 12's is what i run.
for FI, you run much richer than n/a, some run low 11's AFR, depends on amount of boost/timing/octane of gas and if meth will be used.
i think most FI guys are around mid-high 11's AFR at WOT.
your cruise, however, should be around 14.7-ish (stoich) although i wonder if i can go leaner than that at cruise and pick up any gas mileage.
Last edited by sickREDsierra; 09-09-2008 at 05:49 PM.
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#8
are you serious? all that **** done to your truck and you just read that FI has different AFR... i am dissapointed.
generally, n/a like to be around 12.6-12.8 for best power. nitrous should be a little richer, low 12's is what i run.
for FI, you run much richer than n/a, some run low 11's AFR, depends on amount of boost/timing/octane of gas and if meth will be used.
i think most FI guys are around mid-high 11's AFR at WOT.
your cruise, however, should be around 14.7-ish (stoich) although i wonder if i can go leaner than that at cruise and pick up any gas mileage.
generally, n/a like to be around 12.6-12.8 for best power. nitrous should be a little richer, low 12's is what i run.
for FI, you run much richer than n/a, some run low 11's AFR, depends on amount of boost/timing/octane of gas and if meth will be used.
i think most FI guys are around mid-high 11's AFR at WOT.
your cruise, however, should be around 14.7-ish (stoich) although i wonder if i can go leaner than that at cruise and pick up any gas mileage.
For best economy you swing to the other side of stoichiometric balance with a target of λ = 1.05 (about 15.5:1 AFR)
#9
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lambda is another confusing coversion, dont worry about it lol. I mean the conversion is easy, but im not used to it and I prefer AFR.
Looking at my tune, I command around 11.5 AFR WOT from 3500 and up RPM.
My lean cruise is commanding 15.3 AFR. Some of the efilive forum guys are commanding 16+ during lean cruise. watch timing in this discussion as well.
Looking at my tune, I command around 11.5 AFR WOT from 3500 and up RPM.
My lean cruise is commanding 15.3 AFR. Some of the efilive forum guys are commanding 16+ during lean cruise. watch timing in this discussion as well.
#10
At WOT I'm seeing between 9.6:1 and 10.2:1. I think right now I'm in the high 10's/low 11's...but not sure.