09-08-2021, 08:57 AM
(09-08-2021, 08:29 AM)Cormanus_imp Wrote: The thing about this that’s always intrigued me is: how come Don Guhl seems to be the only person in the world to have figured out how to reflash the ECU of a CB1100?
Thanks for posting, Max.
I have a friend that is the best tuner in the world of VAG automobiles ( Volkswagen Audi Group) - that umbrella also covers Lambo, Porsche, Bentley, and until recently- Bugatti)
He CAN tune any of them- but even in the comparatively mass market of cars- there are complex differences just to get INTO an ECU, and once inside- a VAST # of maps that effect all sorts of different things.
Bottom line- to do it right takes a LOT of time- realistically he could spend several months on 1 car alone. He has a nice shop, his own dyno, but time is money.
The more popular the car, the more copies of a tune that he will sell- the more chance he will offer a tune. The more popular the tune- the even better chance he will spend time to revise and fine tune it.
The reason a tune on a super car like a lambo costs as much as it does is not because a shop is taking advantage of a rich guy- it is because there aren't that many rich guys buying tunes for a particular car.
I lent him my Phaeton W12 for 3 months just to get a base tune for it- given he wasn't going to sell any other of those files, he did it in his spare time.
I am 100% sure there are other bike tuners that could do the CB1100- it just isn't worth their time. I also promise you that what Don used to sell for the CB1100 wasn't the best he could do on that same bike if he had it for a month or two and had reason to keep working.
And that was for *that* bike- as soon as other changes were made- the file was no longer optimal.
There is a reason I had him do the ign / rev limiter - but still use the PC5 and autotune for my situation as I continue to make changes.