if you are cruising on normal roads at a constant speed of lets say 45-50mph not going full throttle of course, what kind of A/F readings are you getting? and also what are your readings on the highway at constant speed and what are your readings at idle.

thanks

 

Avg for me was about 14.62 at cruising speeds.

 

^^^
i'm around there as well

 

ditto

 

at cruising speeds i'm at 12.8-13.2
a little rich compared to you guys i guess.
at idle i'm 13.7-13.9

 

yeah yours sounds right nightshark, you have a little less ability to tune with the way your single rail emanage setup is..

heres how my AFRs look:

idle: 14.6-15.30
cruising:~14.70
boosting: 11.90 WOT, full boost

 

Every car is different because with my set up and haltech running 1000Cc injectors my car does not like to be lean at idle or it will sputter and almost stall if i hit the gas pedal.
My car like to be in between 12-13:1
and at WOT im at 10.5-11.5 but after 5000rpm im a bit rich at 10.5:1 ratio and i think this is cauing my EGTs to climb and have to back off at 6000rpms becaue it reaches 1650F

 

nightshark,

are runing running standalone or not? what's you fuel management system like?

 

It sounds like you need to lean up the first few throttle rows of your tuning map. Those #'s are going to hurt the mpg a bit.

what are you using? if it's smt-6 I could post up mine. I'm running pretty good now, just need to richen it up top a bit.

 

In between 14.2 and 14.7