Hi all, I'd like some help and critiquing on my tune. I have the VE and MAF dialed (both with a wideband), and have the idle rock solid on my setup. When I come to a stop the RPMs fall easily back into idle. It runs great at part and full throttle. In all I'm very satisfied with what I've been able to put together. Heck, I even have the O2s switching well at idle. I'm getting into the extreme fine tuning.
The last issue that I haven't been able to fix is the good old bucking between 1k-1.7k RPMs, with light throttle at slow speeds and cruising along at 40MPH in 4th gear. I've read several threads and tried many different methods to fix this bucking:
Matched all appropriate zones in timing tables.
Raised and lowered timing in above zones.
Lowered proportional fueling values.
Disabled proportional idle.
Messed with O2 switching points.
Richened and leaned VE and MAF in the bucking zones.
Zeroed throttle cracker.
Made sure MAF, VE, BRAF are as solid as I can get them.
Messed with EOIT. <- Over (normal = 6) drivability at low RPM sucks for my car
Here are my mods:
42# Deatchwerks Injectors - with good data
TSP 228R 112LSA
Ported LS6 heads - 11.15:1 compression
Ported Fast 92
LS2 90mm TB
LG Superpros
Vararam
Stock Short Block
etc...
Pretty Basic Stuff
Here's my tune. If there's anything you'd like to see logged I can do that. I'd really appreciate any advice you can give. Thanks.
My 2002 Corvette 6MT Base Tune - getting closer.hpt
19-03-24 13-43-46.hpl
GEN III Basic.Layout.xml