When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
is there a significant difference (other than warranty) for doing a TTS dyno tune over the SEPT dyno tune on the M8?
With the Harley tuner for the M8 motors is a neutered EPA legal tuner. So it doesnt have a lot of adjustment for fuel or timing. Yes there are adjustments but you can get a lot more out of the motor with a TTS.
With the Harley tuner, you are limited to their EPA maps and a little tweeking of those maps.
With the Harley tuner you keep warranty.
TTS, will give you a lot more power and the ability to use what ever parts you want.
If the tuner is good with a cabbage that will get the job done too.
Typical question is which is the best tuner ...typical answer is whichever one your dyno tuner is good with.
Lots of info on which tuner does what over in the tuning forum but the TTS is extremely well regarded and has additional features that help the tuning person along the process (cam, spark, and EGR tuning assist for example)
okay... so i did an SEPST dyno after my stage 2 and torque cam upgrade. nice.
Now i added a catless header to the mix. do i need a retune, and will the tts be money well spent to tweak it up, or just a waste of money for little improvement?
With catless header can save your warranty if you stick with SE tuner and put stock header back on if you need warranty work. If you tune with non-SE, its a one way street out of warranty land.
okay... so i did an SEPST dyno after my stage 2 and torque cam upgrade. nice.
Now i added a catless header to the mix. do i need a retune, and will the tts be money well spent to tweak it up, or just a waste of money for little improvement?
How does it run now ?
Is the SEPST you have the orange one ?
Unfortunately SEPST is used for two products. The older Screamin' Eagle Pro Super Tuner, and the new Screamin' Eagle Pro Street Tuner.
Further complicating matters, the Super Tuner was sold in (at least) a black version and an orange version. So there are black Super Tuners and black Street Tuners...Although what I found shows the orange one to be called to Super Tuner Pro, not the Pro Super Tuner, so maybe SEPST shouldn't be used for the orange one, maybe it should be called the SESTP.
So there's an orange Super Tuner, and there's a black Super Tuner with orange lettering on it, and there's a black Street Tuner with white lettering on it.
Black Street Tuner with white lettering:
Black Super Tuner with orange lettering:
Orange Super Tuner:
So maybe we should call 'em the Street tuner and the Super tuner.
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.
Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.
Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.