Tuning the NBS Chevy trucks

[bosro]

07 Silverado with VMax,cat back exhaust system and intake.
Currently using the U7194 on the 87 tune,due mainly to gas prices.
Had the tuner on 91 tune before for a bit but did not really feel any performance/gas mileage gains so went back to 87 octane.
I've been playing around with logging a bit and the numbers recorded don't seem too bad.
LTFT's are a bit all over the place at cruising speeds(probably due to DOD) but at WOT I get a consistent .78.
Cruising the LTFT's bounce from -3 to +3......
Air/Fuel ratio is at 14.75 cruising and drops to mid 12's at WOT.
The U7194 does not get much more than minute and a half of log time which is not great.

So anybody else out there playing with the NBS Chevy trucks??
And if so what have you done with it??

[06MonteSS]

even though the log may be short, we can still go by the data in it... get me a normal cruising/driving log... you want to make sure you're driving for at least 15-20 minutes before starting a log, so that everything is up to normal operating temps - otherwise that would skew the numbers.

send the log to: diablo.help AT gmail.com

[07extgraystone]

if I put a log on here you think you could take a look at it and help me out monte?

[06MonteSS]

dunno if you can post a .log file... email it to me at: diablo.help AT gmail.com

[jimmybuckets]

If you can hook up to a laptop that is ideal...but yeah as of right now the 7194 can only log about a min and a half. I have the 5.3l LY5 (J) motor. I was able to get my LTFT's in line and get my PE down in the 12.8 range under wot. I was able to get a custom tune from DS that pulled some timing down low...and I worked off that custom tune as my base for all the logging I did.

[bosro]

06MonteSS:

Sent you a few logs in e mail!

[06MonteSS]

Rod.. replied to your email a while ago...

[07extgraystone]

ok cool I gotta go get me an adapter to put my log on the computer. thanks