P0174
p0171
P0174
p0171
1969 Chevy RCLB C10 350/TH400 SOLD
2007 Chevy RCSB 4.8 4x4 LS SOLD
2008 Chevy RCSB 5.3 4x4 LT SOLD
2010 Chevy CCSB 6.2 4x4 LT SOLD
2005 GMC CCLB DRW 6.6 Duramax 4x4 191,000 and counting
2013 FORD CCSB F350 6.7 Powerstroke 4x4
Lean, left and right banks Travis. C'mon man. I can't see going from a Blowmaster to the little Magnaflow causing that much difference. But then again I looked at your scan that ya sent me way back and your IDC was over 100% then, so it could just be the straw that broke the camel's back. Get your Walbro in there and re-tune.
2006 SilveradoLittle Black Bitch
I think that blowmaster was a HUGE restriction...it was a 2.5" in/out that I had when I was true dual that the exhaust shop chopped up to fit a 3" pipe. I compared the 3" in/out single chamber Mike sent me and one of the ones I took off...let's just say the case was significantly larger on the real 3" muffler.
Got the walbro here at the house but racetronix didn't send the little connector for the pump...so I either have to order that an overnight it or figure something else out.
Also got the wideband on it and off cold start at idle AFR was over 18.0...gauge stops at 18....at temp it was between 15.3-15.8. Cruise it was same. WOT was 12.5. That was just a brief hit tho so I'll get some more time with it here coming up.
Last edited by bangbangskeetskeet; 01-29-2011 at 07:05 PM.
T-RAV99 GMC | 5.3 | Skinny White Guy Tuned
2006 SilveradoLittle Black Bitch