TFI and Mileage

[blowndodge]

Many a moon ago when were were a small group I had asked if any of you adjusted your TPS to eliminate ping. I got few responses probably because its a little more technical of a procedure.

I'm wondering why some Nomads don't ping stock and get over 40MPG constantly! Some claim 45 and above (mac, and I have no reason to doubt him).

The reason is, is that I think adjusting the TPS does more than just add fuel across the board. On Gadgets site is the procedure and I have a write up in there. At first it was working and as I started increasing the setting (stock was 4.40 DCV at wide open throttle to well above that it started pinging worse?!!

The manual shows a range of 4.29 to 4.59 DCV. I'm wondering if lower instead of higher takes the timing down. Too much can cause relentless pinging no matter what.

I'm thinking of playing around with setting on my TPS to almost the minimum or about 4.30 and use the TFI fuel modulator to adjust the mixture to see if I can lean it out from where it's set now. I'm looking to achieve Mac's over 40 mpg's on his Nomad.

If any of you that get great mileage and no ping stock would be willing to test your setting I'd appreciate it so I can either pursue or abandon this idea.

Like I said I think the TPS also fvcks with the timing advance.

thanks,