The folk who report that the dvt feels faster on the road but the Dyno report doesn't seem to back this up , even with the traction and any other safety features turned off , could it be that when the front wheel is not spinning and reporting road speed is it possible that the map becomes 'softer ' or limited in certain gears . I have seen similar with some cars on dynos , even with traction turned off the abs /esp ecm still has some control over torque output ,it is possible to completely issolate the intervention control by disconnecting a wheel speed sensor thus returning the system to a basic brake / no traction system . I maybe wrong but just some thoughts .
It's not worth anything as it's not measuring rear world horse power at the rear wheel, it's just showing a figure based upon Ducati parameters stating that the engine makes 160HP. If an App could do real world HP/ Fuel it would make every Dyno room worthless. Also, why can't this magic app sort out the big torque dip?
Just got off the phone with Motorapido in winchester briefly discussing fitting the arrow full system (coming out at £670 for the titanium/carbon option!) and having themselves remap the bike, and how this might affect warranty claims. The general gist I got was if one was to go by the book, any claim possibly affected by fuel mapping would have to be proven that the map was responsible for the damage. However as they would be doing the work any relevant warranty claim could be evaluated with some more flexibility, possibly overlooking said map. Price wise I remember £350 for a custom map being thrown around which would still be a huge saving over the term, but I'll confirm that on saturday morning when I pop in for a longer chat with the workshop manager, and will update then.
The US Ducati Forum is reporting a new update relating to DVT Fuel mapping, anybody know anything about here? 2015 Ducati Multistrada DVT ECU/Firmware Updates - Page 19 - Ducati.ms - The Ultimate Ducati Forum
Would this be the same if Cornerspeed put a rexxer map on the dvt ! it runs terrible lean from 4k - 6k so surely that's not a good thing.
As mentioned before, if a problem arose that was connected with any mapping or 'tinkering' with the fuelling or associated systems or parts, then a warranty claim could be rejected. The lean mixtures are 'safe', just not the best. It's a compromise to meet emissions and they're getting tighter.
Its on the US forum somewhere, posted by Multifrank I think. 1st post in this thread should have a link.
I suspect they wouldn't have to be narrower than the rest of the pipe to be restrictive. They only need to produce turbulence to slow the exhaust gases down and imho, they almost certainly will cause turbulence and perhaps, quite a lot. To start with, the perforations themselves will disrupt the gas flow. Tuners will polish ports to aid gas flow and these perforations will be enormously more disruptive to flow than any roughness that can be polished out of a port. Add to that the fact that the perforations are allowing gases to flow through them and also back out again into the main stream and the turbulence caused could be quite considerable.
