leed

^^^ Dynojet sniffers stuffed in the muffler read about 1.0 A/F leaner than a WB mounted in the DP. I have noticed this first hand on several cars.

93turbo16

I have only noticed about a .4 difference max, when the car is at full throttle and full load. At idle and part throttle it has been off more than that, but I haven't had anything 1 point off. I think the car should be run a little richer. But that is just my opinion.

Gotta love the KA boost though, thinking about doing one myself.

The numbers really aren't bad at all for 13 psi.

FooK

I'm gonna have to absolutely agree with dave here, dynojet sniffers 1.0 AFR leaner than a wideband every time.

leed

I suppose it depends on the DynoJet you most frequent. My observations are based soly on one local DynoJet, and Im sure it can vary. Either way, tail-pipe sniffers see things a bit leaner.

idiot-stick

New best time. Ran a 13.3 @ 108mph last night. Thought I bypassed my speed limiter but guess I was wrong

Beat a couple turbo regals (that was easy)
WRX STI
Supercharged ITR w/Hondata.

BoosTedZSix

no vids?

93turbo16

I will say that I have seen them read 1.0 afr leaner.. but I have never seen it that much leaner when the motor was under full load. I have definitley seen it more than 1 afr leaner at like a part throttle and idle.

So either way it is no big deal. Still puts him pretty safe. I also have only used one shops dyno, but I will make note when I go to another one in the next month and make a comparison.

idiot-stick

Gotta wait on my friend to put em on the interwebs