[sudden urge]

Originally Posted by Leadsled124

13.8? that sounds lean. when i feel a flat spot in the power where it is not pulling hard i notice My AFR is closer to the 13.5 range where the rest of the truck is running around 12.8-13 @WOt



Also i have an idea for a way you can try and mount the MAF sensor Sudden. I havent had time to reinstall my S&B and reflash to try this for you guys yet, since i keep changing b pipes and adding cats etc...
After looking at my injen i notice a big tower and that the MAF doesnt fit as far inside the tube as my S&B. I think the step in the S&b is making the air "bounce" around the MaF. If you can try to space it out farther, (almost the size of the aluminum spacer included, use 2). I shot up from 220 to 270 gms in certain spots
Let me know if you try. Other wise ill see if WARP will try for you guys.

The 13.8 AFR was Uprev dyno tuned on dbolemis's Titan just recently, that's what I meant when I mentioned that number. It might have produced good numbers on the dyno, but I think it will not work the same at the track. I'm pretty sure that is what BD did when they had their Titan on the dyno with their premium tune. We'll know soon when dbolemis runs at the track, he has another tune he runs everyday that has a 12.5 AFR. I hope he does a run on each tune, and I have a hunch his 12.5 AFR will run faster than the 13.8 dyno tune he just got.

The MAF spacer idea sounds very interesting. I imagine you can fabricate a few different spacers at a different thickness and fine tune the AFR if that's the case. That would be great for everyone that is not Uprev tuned. I don't have the material or equipment to fabricate anything like that. If you look at the stock OEM tube, the MAF sits in pretty low like the S&B. Anyway, the idea sounds very interesting. I wonder how much that large indent ahead of the MAF mounting on the S&B tube affects the flow readings?