Experienced Haltech but New to UpRev

Unclemeaty

You are right. the g/s does seem to peak at 268.79. B1 & B2 MAF meters measure up about .1v each beyond the initial 268.79. Must be an UpRev limit?

I do see a correction factor, but maybe I'm looking at the wrong one. Seems I see corrections at low and mid throttle opening, but when I go WOT the correction just stays rock steady at 100. I must be looking at the wrong attribute.

xsnapshot

Are most of these tables load based? (off the MAFv readings?) If there is no table to raise the g/s limit, then you'll have to "half maf" all the loads. This is common in the Subaru realm when we exceed 300 g/s. I'm getting up to about 290 g/s in my WRX, so I'm close.

I'd be curious to know if that is how (half MAFing) the uprev folks work around it. Those with supercharges and turbos are definitely exceeding that 268#.

There is probably an Open loop/closed loop logic to the ECU. In closed loop there is a constant correction being added/subtracted to maintain stoich, but when you pass a certain threshold the ECU no longer attempts to control the AFR beyond what its programmed to run. This is why you still see some people with intakes running lean up top. The ECU cannot compensate up there.

xsnapshot

how are you guys getting your AFR? dual widebands or stocks sensors? Can you do a log of both AFR sensors over RPM in, say, a 3rd gear pull?