Not a CSL but...

[alexk]

Originally Posted by mattCSLnut

All you have to do is turn the speakers up

Have you heard one live Matt ?

[shimmy]

Originally Posted by alexk

Have you heard one live Matt ?

They sound Ok Alex but not really with the deep V8 rumble unfortunately.

[alexk]

Originally Posted by shimmy

They sound Ok Alex but not really with the deep V8 rumble unfortunately.

That's what I love most.
Due to the crossbank exhaust manifold design, I think they sound closer to a flatplane crank V8 !

See below...

->

Due to the standard V8 crankshaft considerations, the design of the crankshaft is a crossplane design (see my blog post V8 Crankshaft). However, this inevitably leads to a less than ideal cylinder firing order, which is responsible for the "burble" you hear in a typical V8.

The problem with the V8 burble is that the exhaust pulses on each cylinder bank are irregular. This tends to throttle the exhaust flow. In the case of a turbocharger, the irregular pulses lead to a pulsating acceleration and deceleration of the exhaust turbines which is inefficient. To counteract this problem, BMW designed an ingenious (and patented) "crossbank exhaust manifold".



The illustration above gives the official BMW cylinder numbering convention for V8s, and gives the cylinder firing order in brackets. Note how cylinders 8 and 6 (on the same bank) fire one after another, as do cylinders 2 and 1 The crossplane crankshaft forces this firing order (including the two adjacent cylinders 1 and 2 firing one right after the other which causes heat buildup issues on the cylinder wall they share).

However, despite the uneven firing order, the design of the crossbank exhaust manifold ensures that the turbos each get alternate exhaust pulses, and within each turbo, the pulses alternate between the two scrolls.

An overview of the entire system air intake and exhaust is diagrammed below. The front of the car is on top.

[shimmy]

still....not an AMG rumble

[alexk]

Originally Posted by shimmy

still....not an AMG rumble

Fair enough mate !
I would never buy a taxi though

[shimmy]

Originally Posted by alexk

Fair enough mate !
I would never buy a taxi though

i know, and coupled with the fact that e63 estate only comes 2wd in uk, i also wont be going near a german taxi no matter what it sounds like

[billyboysm3]

Originally Posted by shimmy

i know, and coupled with the fact that e63 estate only comes 2wd in uk, i also wont be going near a german taxi no matter what it sounds like

That white M5 we had was verrrrrry nice though.

[shimmy]

Originally Posted by billyboysm3

That white M5 we had was verrrrrry nice though.

was up there today witht he family testing out some cars and they had a grey one with 6 spokes and red leather which looked very nice as well.

we had a close look at X5(family all loved it but I said NO), 535d mSport Touring in Sophistico Grey (my choice) and 535d msport saloon in white.

need a new daily drive and family barge.

[mattCSLnut]

Originally Posted by alexk

Have you heard one live Matt ?

Yes I have Alex several in fact even the Competition Package one all driven in anger obligatory pix below