shaw01

My question is, isn't this a torque number they were saying the 7g tranny can't handle (in the new CLK63 black series)? ..

http://www.mercedes-amg.com/CLK_Black_Series/

According to the specs, 630 tq and the 7g tranny .. creepin up on 55k torque numbers .. is this a beefed up AMG version of the 7g, in which case might it show up in the 65's and even last remaining 55k's?

If this is the case it would be good news for the 63 guys, in terms of being able to mod their cars, right?

jangy

You theory is right. i haven't heard any facts, though but seems like MB mUST strengthen it up.

shaw01

Well I posted here cause you AMG E guys are the most on top of these things, so I'm glad to find out I didn't make myself sound totally ignorant!! I wonder what a 7g tranny would do with a 55k motor? I mean if it were in a new SL55 .. but I'm guessing it would be a much more significant improvement for new 63's (allowing them to mod them).

jangy

The 7G would turn to mush.
The spec on that car look like the regular 63. i wonder if it ain't the units of measure on the TQ. The HP is still at 507 as is the E63.

OzE55

The quoted torque and power figures, on the website, are the SAME as the E63, but more that the current CLK63. So the transmission is likely to be the same as in the E63.

enzom

The torque rating is metric. Its probably the standard 7 speed.

Kev04C320

Wondering how the SLK55 s/c'ed doing right now?? Haven't heard a problem with them yet.

jangy

SLKs are SC'd? I did not know that. Hmmm, might be time for a test drive. Is it the good old 55k? Full boost and all?

bfnnrgn

No, those would be the Renntech or Kleeman ones. Several board members have had thiers upgraded.

MB_Forever

SLK55 are not supoercharged.

I wonder if Mercedes would go that route for SLK models?

MidniteBluBenz

630 NM = 465 lb/ft torque

ItalianStallion

Is the 7gtronic tranny for AMGs different than the one for regular Benzes? I am asking this because ever since I started running NOS I've noticed my tranny to be slipping and shifting very hard. I am wondering if the one for AMGs are stronger to handle a bit more tq than the regular ones. Because with NOS I'm supposed to have tq at around 430, I sometimes wonder if I hit the limit on the 7g or if its the fact that I drive my car very harsh and constantly use tiptronic.

Vetluver

The Kleemannized SLK55 is called the S7 or S8, makes about 540HP as I recall.

Skeeter

I'm curious as to whether the torque curve itself is relevant to a transmission's ability to handle output.

I'm no engineer, but it seems intuitively that a ton of torque just off idle (like our cars) would put more strain on a car that puts out the same amount but at a much higher RPM. Any technical folk among us that can say whether a sudden slamming of 500 lb-ft at 2k rpm puts the same stress on the transmission as 500 @ 5k RPM?

Sorry for the slight thread hijack

Skeeter