mr2nut123 wrote:Can you post the AFR graphs for these kong? Would be interested to see how lean it is bottom end.
Sure - I think I posted this up a while back although it may have been on the American forum rather than IMOC - can't remember now, lol.
I'm not sure how accurate the GT28rs AFR is on that chart though as I was getting different AFR readings on my innovate wideband in the downpipe (please note as well that I am running methanol injection before you decide whether you want to run the same AFRs as me).
The GT28rs AFR readings were leaner according to my own wideband and much closer to the TD06 AFRs. At the time of the TD06 dyno runs my downpipe wideband sensor readings were much closer to the dyno's - if anything marginally richer. At the time of the GT28rs readings my own wideband was reading much leaner than the dyno broadband.
This may be down to the slight increase in the amount of methanol sprayed with the GT28rs runs as I upgraded the nozzle or perhaps the way it may have been collecting unburnt in the exhaust as I was running a Mongoose with the TD06 but swapped to the titanium single exit before the GT28rs runs.
If more unburnt fuel or methanol was collecting in the new exhaust system this could possibly have thrown off the dyno wideband which inserts into the tailpipe? Otherwise it's going to be down to the sensor calibration.
PS - well done Wade - good to see my old TD06 making great power for just 17-ish psi I wonder how long it'll be before you start wanting more power though