Crome - From the beginning
Honda-Tech Member
Joined: Mar 2007
Posts: 11,399
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From: East Coast 506, Canada
Re: Crome - From the beginning
x2
OP,
what is your ignition reading while decelerating?
IIRC most times on deceleration the engine is under a fuel cut. Check on your fuel injector duty cycle and duration readings at the same time. If it is at 0%, worrying about timing is a moot point.
OP,
what is your ignition reading while decelerating?
IIRC most times on deceleration the engine is under a fuel cut. Check on your fuel injector duty cycle and duration readings at the same time. If it is at 0%, worrying about timing is a moot point.
Honda-Tech Member
Joined: Jun 2011
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Re: Crome - From the beginning
PGMFI is owned hy hondata
From Hondata.com
The ideal mixture at full load (for a non boosted engine) is a matter of option but generally lambda 0.88-0.92 (air/fuel 13:1 - 13.5:1) produces the most power. Measurement of the mixture is best achieved with a wide band lambda meter. An exhaust gas analyser may be used, but tend to have a slow response time (although they are more accurate than lambda meters).
With forced induction the ideal mixture will be a richer under boost. Generally lambda 0.82-0.86 (air/fuel 12:1 ö 12.6:1) is suitable for a boosted engine. For engines with a detonation problem richer mixtures can be used.
How is this calculated for N/a and F/I setups. if it is not calculated, is it proven to be the best rangge over the years of tuning?
The ideal mixture at full load (for a non boosted engine) is a matter of option but generally lambda 0.88-0.92 (air/fuel 13:1 - 13.5:1) produces the most power. Measurement of the mixture is best achieved with a wide band lambda meter. An exhaust gas analyser may be used, but tend to have a slow response time (although they are more accurate than lambda meters).
With forced induction the ideal mixture will be a richer under boost. Generally lambda 0.82-0.86 (air/fuel 12:1 ö 12.6:1) is suitable for a boosted engine. For engines with a detonation problem richer mixtures can be used.
How is this calculated for N/a and F/I setups. if it is not calculated, is it proven to be the best rangge over the years of tuning?
Don't worry this is a fact about you. So if you won't take the usefull information from these knowledgeable guys, just take your money and hypocrisy and just leave. I'm just saying
Last edited by bigJOE671; Sep 2, 2011 at 01:48 PM. Reason: edit
Thread Starter
Honda-Tech Member
Joined: Oct 2009
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From: Griffin Ga
Re: Crome - From the beginning
playing around with the plx m300 i have. i was reading on installs for data logging with the wideband (since it has wideband and narrow band outputs)
still trying to get the mixture corrrect throughout the graph.
i am still having a bit of a hickup befor and after vtec. any thoughts?
still trying to get the mixture corrrect throughout the graph.
i am still having a bit of a hickup befor and after vtec. any thoughts?
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Calvinator
Forced Induction
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Dec 6, 2004 08:44 AM
