AMGdrivR

I'm thinking about adding another car to the stable and I've always wanted a w215 cl65 or w221 s65. The primary reason is speed and power, with luxury, comfort and looks as secondary selling points. Im wondering however if I'm already close to the level of power and acceleration with my e55. If so maybe I'll just stick with what I have and buy something else. I currently have a 77mm SC pulley, 82mm TB with ported snout, TCU tune, ecu tune, secondary cats and resonators removed with c63 mufflers. I also have basic cooling mods. As of next week I should be adding long tubes. What would the expected outcome be if I run a cl65 with a tune and down pipes on both a 1/4 mile and highway race?

dchl21

im sure a cl65 with tune and dp will destroy u

skylinrcr01

BiTurbo V12 > Supercharged V8. Those 65s are stupid fast.

CharlyE500

With your mod, you should be around 500whp and should be a close race to CL65. They are about 300lbs heavier than E55...

AMGdrivR

That's what i figured. With the long tubes, i should be 530-550whp. I think a 65 puts out around 600 whp with a tune and down pipes. Then again, they are heavier. With larger turbos the 65 will make my car look like a golf cart.

layzie12g

I did 4 or 5 pulls with my stock E55 vs my dad's SL65. My car actually pulled initially but he would catch me at about 100 and start pulling away. My car went 12.27@ 113 with a 1.8 60ft.

AMGdrivR

yeah that seems to correlate with what every days. They pull like a demon over 100hp and they keep pulling. You should race him when you're full bolt on. That'll be an interesting race

tscales

I regret buying my SL65. Had it a little more than a year and sold it. Maintenance costs make the E55 look like a Hyundai.

Now it was a little faster than the E55, but not a lot. On the 1/8th (the only track I ran them both), they were about 3/10ths apart on similar tires.

VERY traction limited in both cases, so hard to judge.

My C63S easily kicked the butt of the SL65.

layzie12g

Yup. I'm not sure how some of these V12TT cars are making 10 second passes with tune only. Maybe they have drag radials and are able to do it with the torque, but on the street they are not all that fast. I'm going to take my dad's car out on its street tires to the track and see what it will do.

carguyshu

anything with ABC can quickly become a nightmare (which an S class, CL class, and SL class all have)

AMGdrivR

Yes, I would likely do coil overs if I get a CL or S class.

CharlyE500

Is C63S AWD ? how much faster than a Mod E55 ?

2MERKS

...A 50+ Year old Mike Tyson punch would still sting, image what a SL65 or for that matter of fact a 65 in general would do!

RaceHorse

I think you have to realize you are comparing apples to oranges. The 65 will have more power and torque with a lot less investment in mods over the E55. Depending on what you want, 1/4 mile times can be similar, but the 65 will dominate with highway racing with the extra power on hand. Since the turbos gradually build boost its much harder to modulate the pedal so unintentional rolling burnouts make it difficult to get off the line on street tires. The E55 will be much more nible and raw(based on your mods), but the longer wheel base and extra weight make the CL65 a silky smooth quiet highway cruiser.

If you are looking to "ADD" another car to the stable you will enjoy it. If you are looking to replace the E55, I think you will become bored because the suppercharger gives much better throttle response with a more agressive exhaust note. If you want to race light to light, the 65 is not the car of choice, stick with what you have. That's why I said apples and oranges.

To put things in perspective, I have a quaife diff, ECU/TCU heat exchange, trunk tank, downpipes and a home made intake. With the right mods stock turbos can breath pretty well. I have yet to see aftermarket or upgraded turbos on the V12TTs perform flawlessly. Its a great concept, but most have given up due to the low gain or tunig issues associated.

You are wasting your time without drag radials. You will spin like crazy 50 ft off the line as the car builds boost, or you will have to come off the line so soft that you have a lousy 60ft. Also, without cooling mods they heat soak very quickly and the fun is over. That might be part of the result of not seeming so fast on the street with normal stop and go driving.


I'm not trying to sound like a puriest but, I have not really heard anyone reporting of a perfect coil over replacement. Parts are made, the conversions complete, but it seems as it there is still a bit of dialing in to get the car stable. Its not hard to get over 150 mph, I would speak with others before using this as a cheap alternative to ABC repair and end up with a limited use car if its not stable at higher speeds.

There are always going to be new cars that will out perform a CL65. I just plan on using the "pit manuever" (if needed) kinda like going for an ear!:

principledchiro

Read this: https://mbworld.org/forums/cl55-amg-...top-heart.html

MACEDON

The only reason I'd want a 65 motor is because it's V12, the sound, the experience, and a CL is probably a lot more fun to drive than an E class... I'm sure you can easily make it more powerful too

Shiet man if you can easily afford a car like that what are you waiting for

red60R

I had a tuned CL65, and while heavier and more "comfy" it didn't feel that crazy fast initially, but once it got up to speed it pulled and NEVER wanted to stop. From a 70 roll, I truly don't think a lot of cars could hang with it.

I'd let off before it ever let up......just felt the faster it got the harder it kept pulling.

MACEDON

Yeah but I bet it felt POWERFUL

Tigers aren't the fastest cats but they sure are the most elegant.