Alfa 155 DTM exhausts
Posted 08 August 2010 - 11:19
Why were they made that shape, and was there some obscure DTM regulation that required them, assuming of course that the cars actually raced like this. They look a little restrictive, and while I'm sure there's no connection, the driver had one heck of a problem firing the car up, and keeping it running long enough to exit the Cathedral Paddock, I was beginning to think he'd never make it. I should really have posted this on The Tech Forum, but I've put it here in the hope that I might be able to understand any answers that emerge, so any not too technical explanations?
Posted 08 August 2010 - 11:27
Posted 08 August 2010 - 11:34
They did have a strict noise limit of 100 dB ( measured somewhere from behind the exhaust) at the time.
I also do somehow remember some talk at the time, that the exhaust setup on the Alfas did help with the rear downforce (exhaust gases).
And - the cars at that time in the DTM were highly complicated - it was stated, that for exmaple Opel did require 16 people to fire up the Calibras raced at the time.
Of course, though this period is not too long gone, my remeberance might still be total bo.....s....
Posted 08 August 2010 - 11:41
Posted 08 August 2010 - 11:53
Also, remember that also DTM cars before had slightly skyward angled exhausts, for example the M3 or the Audi V8. Not almost vertical like Alfa, but abot 35 - 40 deg.
This started zilions of aftermarket exhausts for boy racers, all called DTM-style.
Ther must have been some reason for this.
I still think that this might have something to do with he noise limit which was DTM self imposed very early in the series running.
It didn´t change the great induction noises of these cars of course ( also think M3 here ) !
Posted 08 August 2010 - 11:54
It didn't help them in the championship though !!
Here you'll find quite some pics of the 155's
Posted 08 August 2010 - 15:19