Triumph Tiger 800 Forum

Tiger 800 / 900 - Main Discussion Section => ECU Re-Mapping and Tuning => Topic started by: SOHUTAA on January 13, 2021, 08:50:45 PM

Title: Differences between the maps for Xrx route and Xcx Chemin
Post by: SOHUTAA on January 13, 2021, 08:50:45 PM
I ask myself a question, are the engine behaviors different between the road and cross models?
Or are these discrepancies due to the size diferences of the front wheel, 19 on Xr and 21 on Xc, this generating different calculation methods in particular for the management of the cantrale Abs?
Thank you for revealing your knowledge on the subject.
Title: Re: Differences between the maps for Xrx route and Xcx Chemin
Post by: Aussie Tiger on January 14, 2021, 10:18:05 AM
The engine maps are the same across all models. It is possible the ABS is set slightly differently to allow for the different wheel sizes, although the rolling circumferences are surprisingly similar and the difference in the diameter of the tyre is only around 32mm due to the taller sidewall on 19”, so may not be different at all.
Title: Re: Differences between the maps for Xrx route and Xcx Chemin
Post by: VicXCrider on January 14, 2021, 04:34:58 PM
I had a 2016 XRT that I fitted with XC wheels and the ABS worked fine, the off road tyres caused a few error lights to come on sometime, its looking like they have the same software for the ABS.
Title: Re: Differences between the maps for Xrx route and Xcx Chemin
Post by: chuckxc on January 14, 2021, 09:40:36 PM
Traction Control, and most likely ABS too, function by comparing front and rear rotational speeds. Changing wheel diameters could have an effect unless Triumph have modified the number of slots in the rotor to compensate.
Title: Re: Differences between the maps for Xrx route and Xcx Chemin
Post by: Aussie Tiger on January 15, 2021, 02:20:47 AM
*Originally Posted by chuckxc [+]
Traction Control, and most likely ABS too, function by comparing front and rear rotational speeds. Changing wheel diameters could have an effect unless Triumph have modified the number of slots in the rotor to compensate.

First up, ABS and traction control operate off the same sensors. One system activates if the wheel is spinning too fast and other if the wheel is turning too slowly.

Second, the sensor rings on XR and XC models are the same (different front to back, but the same across models). In fact they’re the same part number as the ones on Daytona’s, Street/speed Triple and Twins, Explorers, RIII etc; pretty much everything. It’s the front wheel speed sensors that differ between models - XC is 135 deg, XR is 270 deg. The rear wheel sensors are, not surprisingly, all the same ie 270 deg.

The OP was asking about engine mapping.