Originally Posted by AMGLover
Good read but a couple of things.
1) Garret is one of the worlds biggest turbocharger maker - so the guy is a bit biased.
Yes he is biased, but he makes the strongest argument I've read and what he states make complete sense. There isn't any fluff in his statements.
Originally Posted by AMGLover
2) The AMG engine is unique in that it uses a helical NOT a centrifugal blower.
I know that. Screw superchargers are way better at building boost down low than centrifugal blowers, but they also run out of steam in the upper RPM range. Another reason why Turbos are better.
Originally Posted by AMGLover
4) Torque curve! P.S. only one exhaust valve per cylinder on the M112.
Again I still don't understand your fascination with the valve count. Boost is Boost, the engine sees it the same whether it is coming from a supercharger or turbocharger.
Originally Posted by AMGLover
So what do you want a shade tree turbo, or the worlds best supercharger...
Call it what you want but I really don't see why you care what I think is an ideal setup for this car. A reason there is not much of an aftermarket for these cars is because there are so many people who are satisfied with them as is. Again this isn't a bad thing but I just don't get it when you have people out there who try to discourage others for being innovative. Here is a great article of an innovative guy who kept the supercharger
and added twin turbos.
http://autospeed.drive.com.au/cms/A_1447/article.html
After reading the article you will see that the supercharger is actually turned off at higher RPMs and the turbos take over. Over all boost only increased by 3ibs but look at the horsepower... 500 of them! I know that he could have made everything simpler by removing the supercharger completely and still have the high horsepower figures.