Tail Clamp reading

[Phil'sC5Vette]

I tune using the LM1 Tail pipe clamp.

What are guys finding the differance between the tail clamp reading, and hitting it in front of the cats at a bung???

Im high 14's -mid 15 % AFR at idle and and cruise

WOT im high 11s- low to mid 12s AFR.

[Frost]

I often have the dynojet tailpipe in a car, but I always have a portable wideband in a front bung. The dynojet reading is anywhere from the same to 0.5 leaner than then upline wideband, and the lag would make it a little harder to use.

[righton]

On a Dynojet, the Dynojet's tailpipe reading is approx. 0.8-1.0 AFR higher than the reading from my wideband which is located before my cat.

[Phil'sC5Vette]

Thanks frost.

Like always, your response covers my needs .