So who has the most highly modified CSL?

[alexk]

Originally Posted by Mike Rainbird

That's why I have all my engines mapped in the controlled environment of an engine dyno cell.

It's the only way you can get repeatability, along with being able to hold the engine at full load at any rpm increment to check if any improvements have been made.

Also the problem with lots of modern day cars is that they go into limp mode if the ECU detects that the front wheels have any large speed disparity between the rear ones (adversely affecting power figures). And there are very few rolling roads in this country that have a linked system that drives the rollers to make the front wheels rotate at the same speed.

If you're going to use a rolling road, it's best to get friendly with an independent one and stick with using the same place / operator all the time. Otherwise you'll just get conflicting figures from different rolling roads anyway LOL.

I guess you don't know M3 E46 + CSL have dyno mode in the ECU so as you can dyno the car on a rolling road dyno.