2003G35

Took the car out for its first drive since install and found that at 65 mph crusie A/F was 14-15 at 1/2 throttle from a stop A/F does from 14 down slowly to 12.5 at 7000 rpm. At full throttle it goes the same, I do not hear any pinging at anytime. Is this normal A/F #'s??? It goes for Dyno on Saturday.
Thanks in Advance....

fluidz

yes at 65 mph cruising..........14.7 is normal........12.5 at 7,000 rpm sounds lean as shi*............when your car is just cruising around under very minimal load it will run in enviromental mode.....LOL.......14.7 clean burn...........under load it will burn more fuel to keep the engine cooler............someone correct me if im wrong...............my vortech 350Z runs in vacuum most its life at around 14-15.5A/F..........only when i give a fair amount of gas does it go under 13........at wot it immedietely goes to 11.2A/F and at 4,500rpm is under 11.........the AEM gauge goes blank because it only reads from 11 up

zimbo

iTrader: (4)

What supercharger? Sounds too lean at wide-open-throttle to me.

--Steve

2003G35

It's a vortech G35 kit on a G35 sedan 5AT, BTW I go by Brent on G35 Driver Zimbo I will send you my R4 before and after set-up on Sunday. In looking at both your and my maps. My Vortech settings seem leaner across the board.

booger

iTrader: (6)

Yup sounds to lean...My tuner tried to keep mine between 11.8 and 12 at WOT .