Different A/F at different gears?

[wangboy925]

When I do a pull in 3rd gear the A/F on my wideband will say around high 11s and when I do a pull in 5th gear the A/F will say 10.0 and maybe even lower but I can't tell though. I know these gears have different loads on the engine but i dont know what to follow in terms of how I should tune. Do I go by the 5th gear pull or 3rd gear pull? Plus my Pocketlogger always says has a knock count of 43 when I do a WOT pull (phantom knock) so I cant tune based on the knock count and I need to rely on the A/F wideband gauge.

Thanks.

 

[fullCircle]

You should be using 4Th, unless someone can correct me on that. you need to use the 1:1 gearing from the transmission and i believe that's 4th.

 

[steve]

Until you get rid of the knock your tuning is going to be thrown off. Fix that first.

 

[fullCircle]

use this to get your transmission ratio Tranny gear ratios for DSMs You always want to tune as close to 1:1 ratio.

 

[wangboy925]

With all the mods i have in the car i dont think phantom knock will go away.

 

[standard235]

New OEM knock sensor with teflon tape that is just past finger tight=fixed.

 

[steve]

With all the mods i have in the car i dont think phantom knock will go away.

You have to try. Your tuning efforts are wasted now since the ECU is trying to pull timing and enrich the AFR to kill the knock.