R36 wanted for new ECU tune testing

[R34]

Yeah my R36 blows heaps of black smoke whereas my GTR is clean as a whistle by comparison
I rarely run at WOT anyway

[2muchcoffeeman]

John updated me yesterday with the new throttle mapping. It definitely makes the car feel more responsive.

Next step will be before and after dyno in the next few weeks.

[Guy_H]

Guys, not sure if you have this issue, but I have always noticed that my R36 runs very rich especially on full throttle. This is very noticeable at night when someone is behind you with there headlights on and you take off and leave a cloud of smoke.. Hopefully a tune would fix this a bit as they seem to run quite rich..

I would be most concerned if it didnt - it's nothing to do with carbon build up at all, its a standard trait of the FSI system, All RS4's, S5's etc all do it -its all part of the component protection strategy.

[Guy_H]

A dyno run will allow you to monitor in real time at speeds and loads not readily accessable on public roads, factors such as air/fuel ratios, knock levels and other readings that can help evaluate as to whether a tune is "safe".

Correct, knowing what we have seen running the R36's (and Passat CC's) on the dyno, this is an excellent idea. You can log the timing blocks with VCDS - it's good to see what they are stock.

[DNA Tuning]

I would be most concerned if it didnt - it's nothing to do with carbon build up at all, its a standard trait of the FSI system, All RS4's, S5's etc all do it -its all part of the component protection strategy.

Guy, what you are suggesting is that run after run, the car will keep dumping black smoke every time, which is not what I have seen or heard of. Not trying to prove you wrong, but having spoken to various owners and been in various R36's now, the first big puff of black smoke normally does not happen again on subsequent wide open throttle runs. I attribute this to carbon buildup in the exhaust/cats from puttering around, cold warmup/idling, etc.

At the end of the day, for those that are concerned, we only slightly adjust the wide open throttle fuelling and we leave the EGT regulation enrichments standard - in fact, EGT's are actually lowered when running our tune due to running more advanced ignition timing. So no, we do not remove any component protection systems in the ECU.

[Guy_H]

I think you are totally utterly 100% wrong. How many FSI 3.6 Passats have you actually run on dynos whilst doing data capture?

[paisley]

Next step will be before and after dyno in the next few weeks.

How did it go? Any results to share?

[2muchcoffeeman]

Yes- all good. It's running well and there has been little if any change in fuel consumption.

It does feel a little more responsive. Haven't had time to get to the dyno with John yet to do a before and after.

[R34]

Yeah I'm still keen to see how it goes so I can get mine done