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Author Message   Buellman39 Posted on Friday, April 29, 2005 - 01:48 pm:        You said you ended up taking your TFI of with race ECM installed. How does it seem to run for you? Are you going to ever switch to the stock ECM and put the TFI back on for some of your testing? Chad   Jerseyguy Posted on Friday, April 29, 2005 - 03:53 pm:        It runs fine with the race ECM after removing the TFI. Whatever it unlearned if anything, it must have relearned. Here's the things which disturb me about the TFI. Pot #4 seems to "dumb down" the adaptive capability of either the race or stock ECM (I could be wrong about this so anyone who knows better, please chime in). I've even heard some results where a change in the weather had a real effect on how the person's bike ran with the TFI installed and pot #4 around 8 if I remember correctly. So are we turning a closed loop device into a semi open loop device that we have to manually tune around current conditions? That would suck. Now, on the 9s with race ECM specifically, I tested mine with & without the TFI. Without the TFI the race ECM is still rich especially at moderate to high throttle openings. So why would I want to add gas? When I tested with the TFI it was richer yet based on my pot settings. You could argue that with low throttle openings and low RPM the race runs about .9 to 1 lambda which is a bit lean for power. I tried adding gas down low with the TFI and just didn't see much improvement. For now, I took the TFI off. I couldn't convince myself that turning the pots to 1 means "off" for real. Summer's almost here and I'm getting tired of testing so I don't think I'll be putting the stock ECM and TFI back on any time soon. The only other testing I plan to do is on Kevin's Drummer SS. BTW, I'm not telling anyone what to do. I'm just reporting on my findings and why I came to my conclusion.   M1combat Posted on Friday, April 29, 2005 - 04:05 pm:        I'll be swapping from the TFI to a PC soon... Force Exhaust, Cut airbox, Snorkel delete, K&N.   Hogs Posted on Friday, April 29, 2005 - 04:11 pm:        At this time I`m running the tfi on a 12 all the reg. mods with a force can on a stock 12 header and all seems okay with pot 1 on 3 2and 3 off and pot 4 on 730 , just my 2 pennies...:-)

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