AFR Target(for the mappers)
02 February 2009, 11:47 AM
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AFR Target(for the mappers)
Hi,
What's the accepted AFR targets to shoot for on V-Power for a JDM Twin Scroll engine? Anyone got a RR graph? I'm currently starting at 11+ at initial spool, then dipping down to ~10.3 at the red line. I'm about 20bhp/30lbft down on the ECUTek tune, I'm happy with my boost and timing curve, just wonder if shooting for high 10's will bring me closer.
I would just go out a log, but it's snowing, I'm bored and it'd be nice to know.
Cheers,
Paul
What's the accepted AFR targets to shoot for on V-Power for a JDM Twin Scroll engine? Anyone got a RR graph? I'm currently starting at 11+ at initial spool, then dipping down to ~10.3 at the red line. I'm about 20bhp/30lbft down on the ECUTek tune, I'm happy with my boost and timing curve, just wonder if shooting for high 10's will bring me closer.
I would just go out a log, but it's snowing, I'm bored and it'd be nice to know.
Cheers,
Paul
02 February 2009, 12:38 PM
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Cheers Duncan, I did log Andy's maps pre-laptop blowup, I seem to remember the low boost map starting at low 11's and hitting high 10's, NF was mid 11's to low 11's, I think. I'll give them a try, thanks.
05 February 2009, 03:36 PM
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Does anyone have any JDM STi ECU pinouts diagrams, 2003 and 2005, turns out the AVCS isn't activating in the replacement ECU, damn.
10 February 2010, 01:51 PM
#5
Don't you often run a leaner than 11 AFR at spool to increase spool rate? Higher exhaust temps improve the spool. Running so rich down there seems a little pointless imho.
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