Thunder max
I am running a 2008 flhtcui converted 96 to 103 with the upgrade kit. 10.5:1 pistons, 259e cams, se heavy breather, true duals with vance & hine pro pipe slip ons. Just can't seem to hit the right tune.
I'd put my bike up against the same with a power commander anyday, and have. Not disappointed yet!
Dyno tuners need not apply! This set up is easy to do and their customer support is great.
I had no problem reducing the timing to get rid of pinging on an 03 and keep the power. I had one on my 02' Ultra and really liked it.
I have a TM A/t on my 11' Limited and really like it, I changed cams, A/C, and put rinehart s/o on and it woke the motor up.
My indy recommended that I do the automap procedure every couple hundred miles with the new cams until the map is exact. It's a very simple procedure and takes me about 5 minutes. Compare that with hundreds of dollars in dyno tunes every time you change something or feel that something isn't quite perfect with your tune. TMax is absolutely a good investment because it's a one time expense for lifetime tuning.
Can't speak to the high compression/detonation issues that DBAGR had because I'm running stock compression. Even if I have to later change to another tuner for a Stage 3 or better, the TMax has already paid for itself, IMO.
Last edited by Sparky73; Mar 4, 2012 at 12:37 PM. Reason: typo

I had Tmax on my 07 FLSTF, messed around with it for a long time, but it seemed to never dial in and I feel that the SERT I had for it
with a Dyno tune would have been the best way to go. No one on my area can tune a Tmax.
Here is the dyno sheet that I had from the bike.
Last edited by mgmmgm; Mar 4, 2012 at 12:13 PM.
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I've read everything I can about the TMax over the years. I'm not a mechanic, or an expert in building these engines. But from my reading, my sense is for a stock to lightly modified engine, the TMax is great. It's more questionable that it will be optimal when the build gets more exotic. I would think it would still be very good with these, and not cause a 'lean' or 'rich' condition, but as for getting the last few horsepower out, there are probably better (TTS/Dyno) methods.
As DBAGR points out, there is no knock-reduction function in the TMax. If your engine is prone to knock (high compression), then the TMax could be problematic.
Since you've already got a SERT, and done dyno tuning, and you aren't satisfied...it would seem time to try something else. Either a different tuner and method (TTS, if you're not using it), or maybe switching to a TMax.
Speaking of TTS, I have the old style SERT (forerunner to the current TTS). I didn't opt to upgrade to the TTS, so I'm not certain of all its features. But I BELIEVE, at least for 06 and later TC's, there's a function to auto-tune. I don't know that it's as automated as the TMax in this regard, but it could be it will provide you a little more flexibility with your tuning parameters. Certainly, the TTS system uses the stock ECM, so unless it disables knock-sensing/reduction, you'll retain that...
Alan
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