PC or SERT needed???
What you need is a judgement call. The bike will run without any mods to the EFI, but perhaps not as good as you would like and perhaps with exhaust pops. The story is the same for 08 through 10 bikes, the 09s came from the factory slightly richer. The ECU will adjust the closed loop but not the open loop portions (idle and WOT), or not enough. You will typically run a bit lean there.
If you want the thing to run spot on then don't waste your time with downloads or piggyback units. The current school of though is the TTS will get you there and, if you use sweat equity to save dyno time cost, your out of pocket is $400 to $500. I've seen numerous posts where a guy tunes his bike with TTS, takes it to a dyno tuner later only to be told that the bike was spot on, nothing more they could do. 95% there is a conservative estimate. A great tuner will alway be able to get more, however, but the rate of return on your investment won't be that great.
Several forum sponsors sell the TTS tuning kit. Any shop that does SERT or SEST can use TTS, except HD dealers for political reasons.
Last edited by ColdCase; Jan 22, 2010 at 07:32 AM.
If you haven't mated the SEST yet, sell it and get the TTS. Reason...each time you change your bike's configuration (mods) you can do the reconfiguration yourself so much easier with the TTS VTune than the SEST.
Canned maps, such as the so called stage 1 flash is not for your bike but for a close configuration. How close? I hear an average of 70% approximation or less. Yes, many run fine with canned maps but others want that extra 30% for the bike to run clean, with less heat and more TQ. You add cams or port your heads later then you have to pay for a Dyno guy to remap your bike. You just keep paying over and over.
We could spend all day beating this subject into the ground. There are hundreds of discussions on this exact point and it normally comes down to personal satisfaction. In a nutshell... If you are satisfied with your bike and it runs fine then use the flash but if you want a bike that performs correctly get the TTS. It's easy to use and learn.
Is HD the only ones who can do the flash on the ECM?
Is HD the only ones who can do the flash on the ECM?
If you haven't mated the SEST yet, sell it and get the TTS. Reason...each time you change your bike's configuration (mods) you can do the reconfiguration yourself so much easier with the TTS VTune than the SEST.
Canned maps, such as the so called stage 1 flash is not for your bike but for a close configuration. How close? I hear an average of 70% approximation or less. Yes, many run fine with canned maps but others want that extra 30% for the bike to run clean, with less heat and more TQ. You add cams or port your heads later then you have to pay for a Dyno guy to remap your bike. You just keep paying over and over.
We could spend all day beating this subject into the ground. There are hundreds of discussions on this exact point and it normally comes down to personal satisfaction. In a nutshell... If you are satisfied with your bike and it runs fine then use the flash but if you want a bike that performs correctly get the TTS. It's easy to use and learn.
btw, HD dealerships are the only ones able to use the HD digital technician. If you go to a dealership without your SERT, SEST or TTS they must use their digital technician to flash your ECM. The base cost from mother Harley is 150.00 to the dealership "so I've been told". This may not be accurate but if it is, anything over 150.00 is profit for the dealership. Profit is not a dirty word and each business must make a profit which is acceptable to everyone. What may be unacceptable is windfall profit, but that is another conversation for the political section.
The Best of Harley-Davidson for Lifelong Riders
What you need is a judgement call. The bike will run without any mods to the EFI, but perhaps not as good as you would like and perhaps with exhaust pops. The story is the same for 08 through 10 bikes, the 09s came from the factory slightly richer. The ECU will adjust the closed loop but not the open loop portions (idle and WOT), or not enough. You will typically run a bit lean there.
If you want the thing to run spot on then don't waste your time with downloads or piggyback units. The current school of though is the TTS will get you there and, if you use sweat equity to save dyno time cost, your out of pocket is $400 to $500. I've seen numerous posts where a guy tunes his bike with TTS, takes it to a dyno tuner later only to be told that the bike was spot on, nothing more they could do. 95% there is a conservative estimate. A great tuner will alway be able to get more, however, but the rate of return on your investment won't be that great.
Several forum sponsors sell the TTS tuning kit. Any shop that does SERT or SEST can use TTS, except HD dealers for political reasons.
Producer... my dealership doesn't charge for flashing an ECM back to stock. They only charge for an upgraded flash because the mother ship can see each time a dealership uses the digital tech via internet and bills the dealership unless it is a stock flash. Again, this is "what I've been told" and may be total BS.







