Air/Fuel Ratio Gauge, Anyone using one? Options

[race914]

A little background. I bought my motor used and besides not knowing how well it was tuned to start with, I changed out the 4 into 1 headers with a set of Chris Foley's 4-2-1s.. Sometimes I get pops & flames out the exhaust on decel so I'd like to see if my Webers are jetted right.

I don't have easy access to a chassis dyno and am considering a wideband Air/Fuel Ratio Gauge so I can log and monitor the data at the track.

Again, I'm curious how my normal AFR is with just my Phase 9 (sometimes I'm getting pops & flames out the exhaust on decel) and also what happens to my AFR when I add my supertrapp onto the Phase 9 for <=90db tracks, etc. (This usually eliminates the pops & flames)

I could make a long tow to a chassis dyno somewhere but I'm thinking the gauge might be more helpful longterm to have ongoing access to the data..

Anyone use one of these?

(IMG:http://www.autometer.com/img/products/4378_d.jpg)

AutoMeter

or one of these?

(IMG:http://shop.airfuelratio.com/images/product_1_zm.jpg)

NGK

I know there are lots of other brands out there too (AEM, etc.) Anyone get good enough data for tuning purposes? Or should I just go find a chassis dyno?

Thanks in advance for any feedback on your experiences

[groot]

I've heard that reading the plugs is hard, too...... since technically you should turn the car off from a WOT event and coast into the pits, then pull the plugs.

I've got EGTs on each cylinder, but I will add this in the next month or two.
LC-1

It will plug into my data collection system.

[race914]

Looks like another vote for Innovation Motorsports! Found their site and reading now..

Up until now I've been looking at my plugs. I get some info from this but I agree that if you can't do a WOT run and then shutoff the motor and coast to a stop without going back to the lowspeed or idle circuits you don't get accurate readings. By the time I slow down, come off track and get even to the hot pits, the WOT plug readings are long gone.

I have a TraqMate Data Acquisition system and I'll be able to log any of the AFR gauges with the 0-5v senders... I'm hoping that looking at the AFR data along with RPM will help me out rather than watching the readings while ontrack.

I've heard that reading the plugs is hard, too...... since technically you should turn the car off from a WOT event and coast into the pits, then pull the plugs.

I've got EGTs on each cylinder, but I will add this in the next month or two.
LC-1

It will plug into my data collection system.