dude just get a safc II unit and a wideband and your good to go...u can tune ur a/f ratio urself to the speicification you want. plus its more accurate then a dyno tune. u can get all the stuff u need off modern performace. im about to do that here soon.

 

I was told the SAFC 2 would not work with the cobalt or i would have got that to tune it.

 

So i got another dyno done today to tune wiuth the MAF-T, kinda dissapointed, i'm maxed on my injectors, you can see it on the other one where it starts to go lean but on my nre dynos it is alot more noticable. I dudn't make any more peak horsepower but i did lose some where we made it richer, actually made a big difference when driving, kinda feels laggy. I have it now where its running at a good AFR, i'll post some dyno sheets up when i get them.

 

Was the WBO2 in the tail-pipe or in a secondary bung before the CAT??
WOT

 

This was using the Dyno AFR unit, My gauge hasn't arrived yet since they decided to not ship it til friday.

 

my air fuel was a wreck at redline 13.1- 13.4. I think i lost some tq cause of it too. I don't even want to do exhaust now I have to wait for the stage one or get Intenst injectors. You think the stock computer can run the 42 pound injectors or you need the maf translater?

 

Mine wasn't that bad i think it usually went to 12.5 at redline but i can't get anymore power out of it til it is fixed. It ran out of injector at axactly 235 HP each time, even my older one does.

 

I'm at 243 whp and thats my air fuel for it. I had to demod a little to richen the car back up. Plus take off the bypass mod. I can break 250 whp but my air fuel would just get worse on me so f-it I'll just fall back for now and wait for injectors.