Jattzz

how does it affect the engine, like how does it improve the engine , not just improving the horsepowerbut how does it make the engine what it is?

vraa

It's another word for twin turbos.

Turbocharging and supercharging are forced induction methods (as opposed to naturally aspirated) to force air into the engine to create incredible more amounts of power (but with added stress to an extent).

Your CL65 is turbo charged. You have two turbos that spin off the exhaust gasses sucking in air and forcing it through your engine filling your piston chambers with so much air pressure, it's incredible. I don't have a CL65, but I assume that it's very similar to a SL65 in that there is very little turbo lag.

You just push the throttle and you just MOVE off the line. It's because you have a lot of torque even when the turbos aren't on, so I can't explain to you how much force the turbos create, but I should remind you that the very reason we have "turbo lag" in smaller engined cars should be reason enough on how powerful turbos can be.

If I remember right, much of the tuning success for the Supra comes from it's strong engine block and the blocks ability to hold up to some serious turbocharging, much beyond what stock limits were.

JAYCL600

your AMG card is now revoked

benzmodz

AMG cars also have larger oil pores internally as well as special crankshafts and special camshafts. The pistons are better also.

To make an engine you look at all the moving parts.

DHH

I thought it meant the turbos like both he-turbos and she-turbos...

lkchris

Your car has two turbos because it's a V-engine and this simplifies the intake ducting.

Wolfgang

Lots of torque from low rpm:

570 Nm @ 1000 rpm
750 Nm @ 1500 rpm
1000 Nm @ 2000 to 4000 rpm

Graph: http://www.whnet.com/4x4/pix/M275_E60_2LA.jpg

vraa

Doesn't the SLK400 CDI have 3 turbos? 2 large and 1 small?

BlownV8

Edit, the SLK 320 has the tri-turbo system.

vraa

What I mean is: doesn't it have three turbos and a V8? How is the setup distributed?

whoover

The SLK 320 CDI tri-turbo is a show car; it's not production technology.

It's a V6 diesel with two small turbos on either side, as with a normal bi-turbo setup, plus a larger central turbo in the crotch of the V. The small turbos minimize turbo lag, and the large one takes over at higher RPMS and charge flow.

whoover

Forced induction systems all use compressors to increase the density of the fuel-air mixture that is fed into the engine. This increases the effective displacement of the engine by the same ratio. Squeeze the fuel-air charge that would normally be sucked into a three-liter engine by a factor of two an you've just simulated a six-liter engine.

Unlike a supercharger, which is mechanically driven by the engine, a turbocharger is driven by exhaust gasses. At low RPMs the turbo doesn't spin, and the resulting delay in torque multiplication is called turbo lag. One way to minimize turbo lag is to make the turbo system smaller. Smaller diameter piping will convey sufficient exhaust gas velocity to the compressor more quickly. But a smaller turbo makes less compression and torque.

Two solutions both use two turbo-chargers. The MB, Porsche, BMW, etc. system has two smaller turbos on either side of a V or horizontally opposed engine. Two smaller turbos spin faster than one large. The typical Japanese twin-turbo system uses one small and one large turbo for all (typically inline) cylinders. The small one mitigates turbo lag and the large one takes over at higher RPMs. The tri-turbo system in the 320 CDI experimental engine combines these configurations.

Wolfgang

Mercedes uses a similar setup as well in the commercial Sprinter van, together with a inline 4 cylinder diesel, with a small and large turbine, in a so called "regulated two-stage (R2S)" setup. The system was also developed in Kirchheimbolanden, like the titanium K24 biturbos in your S65.

IngenereAMG

Biturbo is the decription of the use of 2 turbocharger. In this case 1 for each bank of cylinders. As stated previously the forced air helps create a much higher density of charge, which in turn helps to create more power.

I can attest about the turbo lag from larger turbos, as my Indycar has a 2.8 liter Cosworth V8, with a HUGE single turbo. There is zero happening under 6500rpm...and then BANG! 750hp! The general launch technique in that car is 8000rpm and let the clutch out and feed in more gas. When you get it right it is very entertaining.

Modern turbo and SC cars are very easy to get BIG reliable hp/torque increases from simple ECU work...which definitely makes things fun.

Zod

thanks for the education leson i now know the difference between sc n turbos

Militant-Grunt