I got an UpRev tune from a pro-tuner back in December after all the bolt-ons. I recently purchased UpRev's cipher as a cheaper alternative to a dual wide-band kit. I noticed at idle the AFR's are roughly 12.9, cruising 14.7 and WOT 11.9. From what I understand you want 14.7 at idle and cruise. So I take it I am running rich at idle and WOT. I called my buddy who deals mainly with corvettes and he said ideally for N/A 12.5 at WOT is preferred... All other maps (high octane, valet, and stock) all read 14.7 at idle, just not the "real" 93 pump gas tune. Any thoughts? Normal?

 

Sounds like you're running really rich... possibly the maps are switched? 14-15 at idle is good, cruising should be around 13, never below 12 NA. Where'd you get tuned? Have you brought this up to the tuner?

 

Who knows? The tuner told me that map 1 was the actual 93 octane dyno tune, 2 was the "high octane race" tune, 3 was the valet, 4 was the "dead" tune and the 5th map was the stock tune. I am stationed in Oklahoma City and had it tuned at Z-Fever/Fever racing in Tampa Florida while I was there on leave for the holidays. I emailed them and it is pretty useless. I was told they tune so many cars each month that my run files are no longer are on file and to just bring it back by... They only did 6 pulls on the dyno according to the printout they gave me only gaining me less than 4 peak hp. Ive been back and forth with them and its a long story... Here is the dyno sheet he emailed days later because his computer was messing up and his printer was broke... Best $660 I ever spent!

 

Can you post up the whole dyno chart? Also do you have a copy of the tuned file? If there are any protuner shops nearby I'd recommend putting it on the dyno and checking it with the wideband on the dyno, base run shouldn't run you more than $50-60

 

+1

Need full dyno sheet to know...seems like 12.5-13.0 is what tuners target for A/F on this motor during WOT.

Idle/Cruising should both be close to stoichiometric @ 14.7 - depending on engine load of course