CLS55 vs. CLS63
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Joined: Dec 2005
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From: Encino, CA
a toy
CLS55 vs. CLS63
As you all know, the 55 is supercharged and makes a load of torque, while the 63 will be N/A.
Now, if Mercedes follows the same trend as the C class, would the 63 actually be slower off the line? I would think that AMG would make sure they could advance the power output throughout the entire rpm range, but looking back at the driver feedback of other models has started to confuse me.
Mainly I'm comparing the C32 and C55. The C32 felt ballsier off the line because of the supercharger, while the C55 has a larger N/A engine that outperforms the C32 in the 1/4 mile. Even though it's faster overall, it still "feels" slower off the line.
Another example, although not as applicable, would be the 05 C230 Kompressor against the 06 C230. I read all over this forum that the 4 banger 05 felt faster off the line, while the 06 makes more power at topend.
Any thoughts about that, or an estimated torque output? I know it will be a 6.2 liter 503 horsepower engine, but that's it.
Yet another issue is the transmission. Has AMG confirmed the CLS63 is getting a 7-speed auto?
Are there any other changes between the two, other than the engine/tranny?
Estimated MSRP?
Now, if Mercedes follows the same trend as the C class, would the 63 actually be slower off the line? I would think that AMG would make sure they could advance the power output throughout the entire rpm range, but looking back at the driver feedback of other models has started to confuse me.
Mainly I'm comparing the C32 and C55. The C32 felt ballsier off the line because of the supercharger, while the C55 has a larger N/A engine that outperforms the C32 in the 1/4 mile. Even though it's faster overall, it still "feels" slower off the line.
Another example, although not as applicable, would be the 05 C230 Kompressor against the 06 C230. I read all over this forum that the 4 banger 05 felt faster off the line, while the 06 makes more power at topend.
Any thoughts about that, or an estimated torque output? I know it will be a 6.2 liter 503 horsepower engine, but that's it.
Yet another issue is the transmission. Has AMG confirmed the CLS63 is getting a 7-speed auto?
Are there any other changes between the two, other than the engine/tranny?
Estimated MSRP?
Senior Member
Joined: Oct 2005
Posts: 361
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From: Fargo, North Dakota
2012 Cayenne Turbo
Originally Posted by Roupin
As you all know, the 55 is supercharged and makes a load of torque, while the 63 will be N/A.
Now, if Mercedes follows the same trend as the C class, would the 63 actually be slower off the line? I would think that AMG would make sure they could advance the power output throughout the entire rpm range, but looking back at the driver feedback of other models has started to confuse me.
Mainly I'm comparing the C32 and C55. The C32 felt ballsier off the line because of the supercharger, while the C55 has a larger N/A engine that outperforms the C32 in the 1/4 mile. Even though it's faster overall, it still "feels" slower off the line.
Another example, although not as applicable, would be the 05 C230 Kompressor against the 06 C230. I read all over this forum that the 4 banger 05 felt faster off the line, while the 06 makes more power at topend.
Any thoughts about that, or an estimated torque output? I know it will be a 6.2 liter 503 horsepower engine, but that's it.
Yet another issue is the transmission. Has AMG confirmed the CLS63 is getting a 7-speed auto?
Are there any other changes between the two, other than the engine/tranny?
Estimated MSRP?
Now, if Mercedes follows the same trend as the C class, would the 63 actually be slower off the line? I would think that AMG would make sure they could advance the power output throughout the entire rpm range, but looking back at the driver feedback of other models has started to confuse me.
Mainly I'm comparing the C32 and C55. The C32 felt ballsier off the line because of the supercharger, while the C55 has a larger N/A engine that outperforms the C32 in the 1/4 mile. Even though it's faster overall, it still "feels" slower off the line.
Another example, although not as applicable, would be the 05 C230 Kompressor against the 06 C230. I read all over this forum that the 4 banger 05 felt faster off the line, while the 06 makes more power at topend.
Any thoughts about that, or an estimated torque output? I know it will be a 6.2 liter 503 horsepower engine, but that's it.
Yet another issue is the transmission. Has AMG confirmed the CLS63 is getting a 7-speed auto?
Are there any other changes between the two, other than the engine/tranny?
Estimated MSRP?
"Mercedes has come up with a brand-new AMG V-8 that makes 503 hp at 6800 rpm and 465 lb-ft at 5200 revs, outstripping the V-10 its dreaded rivals from Munich put in the M5 and M6. M-B refers to this V-8 as a 6.3-liter unit, alluding to the engine fitted in the classic 300 SEL 6.3, but it's actually a 6.2-liter engine. "
http://automobilemag.com/news/0508_m...benz_amg_63v8/
Thread Starter
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Joined: Dec 2005
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From: Encino, CA
a toy
34 more horsepower but 51 less torque, all at a higher rpm.
I wonder if the CLS63 would be able to outperform the CLS55. I guess it definitely needs the 7 speed to help its cause there.
I wonder if the CLS63 would be able to outperform the CLS55. I guess it definitely needs the 7 speed to help its cause there.
Senior Member
Joined: Oct 2005
Posts: 361
Likes: 0
From: Fargo, North Dakota
2012 Cayenne Turbo
Originally Posted by Roupin
34 more horsepower but 51 less torque, all at a higher rpm.
I wonder if the CLS63 would be able to outperform the CLS55. I guess it definitely needs the 7 speed to help its cause there.
I wonder if the CLS63 would be able to outperform the CLS55. I guess it definitely needs the 7 speed to help its cause there.
I agree that these numbers don't look very compelling to switch out the engine. Especially considering the car is brand new. It will seriously hurt the resale of CLS55s to change the engine out that quickly.
Can someone point me to an article that states there is going to even be a CLS63?
I think it would be a mistake not to let the CLS55 stay in production for a couple of more years.
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From: Sunshine Ranches, FL
'06 M6, '05 Lambo Gallardo
IMO the CLS63 will kick the crap out of the CLS55. The 55k motor makes too much torque as the tires spin and electronic intervention is always apparent at lower speeds. The slightly lower torque will allow the use of the 7 speed tranny. The 63 motor is head and shoulders above the M5 V10.
What would bring me back to MB would be the look of the CLS (which I miss) with the fun factor, nimbleness, and tranny of my M5. I would love to see that happen!
What would bring me back to MB would be the look of the CLS (which I miss) with the fun factor, nimbleness, and tranny of my M5. I would love to see that happen!
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From: City with Tall buildings!
C43/55,2k11 Volvo S60 T6AWD,2k Audi B5 S4,95 Eagle Talon Tsi AWD 500+awhp
Originally Posted by jkrutch
IMO the CLS63 will kick the crap out of the CLS55. The 55k motor makes too much torque as the tires spin and electronic intervention is always apparent at lower speeds. The slightly lower torque will allow the use of the 7 speed tranny. The 63 motor is head and shoulders above the M5 V10.
What would bring me back to MB would be the look of the CLS (which I miss) with the fun factor, nimbleness, and tranny of my M5. I would love to see that happen!
What would bring me back to MB would be the look of the CLS (which I miss) with the fun factor, nimbleness, and tranny of my M5. I would love to see that happen!
I say let's wait and see b4 we start jumping to all kinds of conclusions.
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Originally Posted by coolcarlskiC43
Well b4 you say that we'll have to see. You will always be able to mod the CLS55 to annhilate the CLS63. I also don't see how you feel the 63 motor is head and shoulder above the V10 in the M5 I say let's wait and see b4 we start jumping to all kinds of conclusions.
I say let's wait and see b4 we start jumping to all kinds of conclusions.about 750hp would b a reasonable estimate
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From: City with Tall buildings!
C43/55,2k11 Volvo S60 T6AWD,2k Audi B5 S4,95 Eagle Talon Tsi AWD 500+awhp
Originally Posted by AMG_55
the 55k is already supercharged, imagine the 6.2 w/ a s/c
about 750hp would b a reasonable estimate
about 750hp would b a reasonable estimate
.The E55 S/C M113 low compression motor will always have more potential due to it's compression ratio.It will also be way cheaper to mod. CLS65 will be the real beast then CLS55 modded. But we'll have to see.
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From: .
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Originally Posted by coolcarlskiC43
You're talking about spending over 10k vs spending 2-3k. And that's if the CLS63 can even be F/I due to very high compression which I think will be in the high 11's or low 12.X.The E55 S/C M113 low compression motor will always have more potential due to it's compression ratio.It will also be way cheaper to mod. CLS65 will be the real beast then CLS55 modded. But we'll have to see.
.The E55 S/C M113 low compression motor will always have more potential due to it's compression ratio.It will also be way cheaper to mod. CLS65 will be the real beast then CLS55 modded. But we'll have to see.
the new engine will have more absolute potential because its of its larger displacement. Nobody is saying it will be cheap though.
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From: City with Tall buildings!
C43/55,2k11 Volvo S60 T6AWD,2k Audi B5 S4,95 Eagle Talon Tsi AWD 500+awhp
Originally Posted by reggid
yes, it would be impossible to change the compression ratio wouldn't it
the new engine will have more absolute potential because its of its larger displacement. Nobody is saying it will be cheap though.
the new engine will have more absolute potential because its of its larger displacement. Nobody is saying it will be cheap though.
It will be very very expensive to build as one piston just on the N/A 5.5L motor cost 750.00 my price.Don't let me bring up the price of the rods and labour. Feel like "Donald Trump" pal,then go spend the money to change the pistons and supercharge the 6.3L.
Stck for stck and for potential upgrades,5.5L motor has to be the better all around way to go IMOP. 
I'm also getting the feeling that the S/C E55 and SL65 motors will be the ticket for more upgradeable hp potential than your lovely 6.3.And that goes for BMW's new high compression V10 as well.Same boat as AMG's 6.3L motor.
Last edited by ProjectC55; Dec 11, 2005 at 09:31 AM.
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From: Kansas City MO.
Originally Posted by Roupin
As you all know, the 55 is supercharged and makes a load of torque, while the 63 will be N/A.
Now, if Mercedes follows the same trend as the C class, would the 63 actually be slower off the line? I would think that AMG would make sure they could advance the power output throughout the entire rpm range, but looking back at the driver feedback of other models has started to confuse me.
Mainly I'm comparing the C32 and C55. The C32 felt ballsier off the line because of the supercharger, while the C55 has a larger N/A engine that outperforms the C32 in the 1/4 mile. Even though it's faster overall, it still "feels" slower off the line.
Another example, although not as applicable, would be the 05 C230 Kompressor against the 06 C230. I read all over this forum that the 4 banger 05 felt faster off the line, while the 06 makes more power at topend.
Any thoughts about that, or an estimated torque output? I know it will be a 6.2 liter 503 horsepower engine, but that's it.
Yet another issue is the transmission. Has AMG confirmed the CLS63 is getting a 7-speed auto?
Are there any other changes between the two, other than the engine/tranny?
Estimated MSRP?
Now, if Mercedes follows the same trend as the C class, would the 63 actually be slower off the line? I would think that AMG would make sure they could advance the power output throughout the entire rpm range, but looking back at the driver feedback of other models has started to confuse me.
Mainly I'm comparing the C32 and C55. The C32 felt ballsier off the line because of the supercharger, while the C55 has a larger N/A engine that outperforms the C32 in the 1/4 mile. Even though it's faster overall, it still "feels" slower off the line.
Another example, although not as applicable, would be the 05 C230 Kompressor against the 06 C230. I read all over this forum that the 4 banger 05 felt faster off the line, while the 06 makes more power at topend.
Any thoughts about that, or an estimated torque output? I know it will be a 6.2 liter 503 horsepower engine, but that's it.
Yet another issue is the transmission. Has AMG confirmed the CLS63 is getting a 7-speed auto?
Are there any other changes between the two, other than the engine/tranny?
Estimated MSRP?
Anyone here that MB has a Bi-Turbo charged 6.0liter DOHC V8
(thats based on the 6.3liter unit) it`s been rumered to develope 570+hp. It`s been said that the S63 as well as the CL and SL63 will get this engine!
I believe the E63 and CLS63 will get this engine to. The N/A 6.3 will be for the
lower class models like the CLK and SLK55. Lets see what MB comes up with.
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From: Houston, Texas - USA
2009 C63 AMG
The x factor is the 7 speed tranny. I just read an article on the SLK55 with the old 5.5 engine (non kompressor) and it went almost as fast as the E55 because of the transmission. Hopefully that will give the 63's the edge.
