CLK 500 Remap

[Udders]

Hi, is it worth getting it remapped? Is there much to gain?

 

[DSM10000]

Is this the case normally aspirated engine? If so then very little.

It is an engine with excellent torque at low rpm in a relatively light body. What is it about the current performance that you wish to improve?

 

[Teego]

Is this the case normally aspirated engine? If so then very little.

It is an engine with excellent torque at low rpm in a relatively light body. What is it about the current performance that you wish to improve?

You can never have too much. Talk to Acid at MSL.

 

[DSM10000]

You can never have too much.

Yes you can!

 

[MikeInWimbledon]

Hi, is it worth getting it remapped? Is there much to gain?

What are you missing?

If you want M3 performance out of the CLK500 on the twisties raw power is the least of your worries.

 

[Udders]

I have had the Bilstein B12 suspension kit on my car for years so cornering isn’t an issue. Also bigger brakes and Red stuff pads so stopping is ok too along with P Zero tyres. I know with a NA engine there isn’t going to be a massive difference but may get smoother better performance with what’s already there?
On a side note, does anyone know what the mechanical difference is between the 5.0 and the 5.5l? Is it flatter pistons? Shorter con rods? Are the cams the same? I may get that done before / at the same time to give a bit more?

 

[Spider10]

I'd save your money ref remap and get rid of those s---te tyres

 

[Bobby Dazzler]

On a side note, does anyone know what the mechanical difference is between the 5.0 and the 5.5l? Is it flatter pistons? Shorter con rods? Are the cams the same? I may get that done before / at the same time to give a bit more?

I suspect that upgrading your existing engine will prove to be very expensive and will end up being cost prohibitive - I’d love to follow your build though. Replacing the whole engine would probably be a better option, and even that doesn’t make financial sense when you could sell your current car and buy a car with the engine you want installed in the factory.

The engine in your version of the CLK 500 is called the M113. The bore is 97 mm and the stroke is 84 mm. Whilst Mercedes built huge numbers of them it’s relatively unusual design, as it has a –valve head - with two valves on the intake side and one valve on the exhaust side, and uses two spark plugs per cylinder, all in the interests of emissions and efficiency.

The 5.5 litre engine found in the CLK 500 is called the M173 and is an evolution of the M113 5.0 found in your car, but there will be many differences. The bore is 98 mm and the stroke is 90.5 mm. It has variable valve timing and completely different 4-valves per cylinder heads. In the absence of other changes, that‘s a lot to retrofit and get working.

The naturally aspirated (non-supercharged) 5.4 litre M113 engine found in the CLK 55 AMG shares more with your engine. It has the same 92 mm bore but has a 6mm longer stroke at 94 mm. As it’s an AMG derivative of the engine then I suspect that there will be other mechanical and electrical differences too, over and above the 5.0 derivative found in your car.

Even though it would still be a significant undertaking, I would suggest that upgrading to the 5.4 litre engine would be more realistic proposition, and even then it would be much more sensible to simply sell your CLK 500 and buy a CLK 55. If you have deep pockets and are a very competent mechanic - and good with electronics - then it would make a great build project thread!

 

[Udders]

I'd save your money ref remap and get rid of those s---te tyres

Funny you say that……this is the second set of P Zeros and even though they were supposed to be the same, they definitely aren’t. No where near the same level of grip. Hey ho, I’ll have to look for something else next time.

 

[Udders]

I suspect that upgrading your existing engine will prove to be very expensive and will end up being cost prohibitive - I’d love to follow your build though. Replacing the whole engine would probably be a better option, and even that doesn’t make financial sense when you could sell your current car and buy a car with the engine you want installed in the factory.

The engine in your version of the CLK 500 is called the M113. The bore is 97 mm and the stroke is 84 mm. Whilst Mercedes built huge numbers of them it’s relatively unusual design, as it has a –valve head - with two valves on the intake side and one valve on the exhaust side, and uses two spark plugs per cylinder, all in the interests of emissions and efficiency.

The 5.5 litre engine found in the CLK 500 is called the M173 and is an evolution of the M113 5.0 found in your car, but there will be many differences. The bore is 98 mm and the stroke is 90.5 mm. It has variable valve timing and completely different 4-valves per cylinder heads. In the absence of other changes, that‘s a lot to retrofit and get working.

The naturally aspirated (non-supercharged) 5.4 litre M113 engine found in the CLK 55 AMG shares more with your engine. It has the same 92 mm bore but has a 6mm longer stroke at 94 mm. As it’s an AMG derivative of the engine then I suspect that there will be other mechanical and electrical differences too, over and above the 5.0 derivative found in your car.

Even though it would still be a significant undertaking, I would suggest that upgrading to the 5.4 litre engine would be more realistic proposition, and even then it would be much more sensible to simply sell your CLK 500 and buy a CLK 55. If you have deep pockets and are a very competent mechanic - and good with electronics - then it would make a great build project thread!

Great info. . Thanks.

 

[ALFAitalia]

Funny you say that……this is the second set of P Zeros and even though they were supposed to be the same, they definitely aren’t. No where near the same level of grip. Hey ho, I’ll have to look for something else next time.

They are good in 20 degrees plus or hard driving to get plenty of heat into them....not so good in usual UK weather.