Thrasher 100 BLM question

[WSLN 6]

BLM's with the Thrasher are locked at 128 at idle and WOT, so I have been tuning the chip at cruise. I have it sitting around 128 give or take 5 at cruise.
With Thrashers lean cruise built in, do you still want to tune for around 128 blm at cruise or a different number?
Isn't the lean cruise mixture 16:1 instead of 14.7:1?

 

[Scott231]

Originally posted by WSLN 6
BLM's with the Thrasher are locked at 128 at idle and WOT, so I have been tuning the chip at cruise. I have it sitting around 128 give or take 5 at cruise.
With Thrashers lean cruise built in, do you still want to tune for around 128 blm at cruise or a different number?
Isn't the lean cruise mixture 16:1 instead of 14.7:1?

Yes, you want 128 at cruise. Note that when the car goes in to LEAN cruise mode (i.e. highway mode which is different than "around town cruise") the chip again puts the desired AFR down to ~16:1 and a BLM of 128 in that mode means the computer is not adding or deleting fuel, cuz the approximate AFR is 16:1.

Hope that helps.