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.
The Dyno RoomA special room dedicated for Dyno tuning products, troubleshooting and results. All Gearheads and Dyno Operators are welcome here as well as the guys that are new to tuning. Please see the special rules for this section before posting.
I am setting up my initial VTune map. Tuning guide says "most (but not all) Lambda calibrations use MAP based VE tables. The map that I chose has a Lambda calibration, but the Tuning Constants shows TPS in the "VE Table Option" cell. Should this be changed to "MAP" before I start V-tune? The Lambda X-axis is MAP.
If you want to use the MAP based VE tables. Yes, change that to MAP in the constants.
Thanks for the reply. When I tuned my 2003 Road King with the HD SERT, I believe that the AFR table was Throttle Position driven, and the VE tables were based on MAP. The map that I am using for my 2016 FLTRU (and other maps that I looked at) use MAP for Lambda, and TPS for VE (VE Table Option set to "TPS"). I did find an additional statement in the TTS tuning guide stating that using MAP VE make correlation to the fuel table easier. It might seem logical to have Fuel and VE both working off something "real", like MAP. I want to make sure that I don't waste my V-tune efforts by choosing the wrong thing.
I was thinking there would be some folks hanging out here who would know a lot more about this than me, so just looking for a recommendation.
Thanks again!
You can use either MAP or TPS based calibrations.
I, as well as most tuners, prefer MAP based cals simply because tuning is "load" based rather than "TP" based, which usually provides a better running bike.
Bob
You can use either MAP or TPS based calibrations.
I, as well as most tuners, prefer MAP based cals simply because tuning is "load" based rather than "TP" based, which usually provides a better running bike.
Bob
MAP seemed logical, but I wanted some input from someone who could state why. Thanks much!
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.