e500slr

I'm selling an E55 supercharger and I got a call from a guy who wants to buy it for his CL500. He asked me what he needed to install it. I told him I was pretty sure it could be installed but not sure what it takes. He asked me if I could sell him the ECU with it but I told him that he could possibly use his existing ECU.

What do you guys think? I don't want to lie to him just to make a sale but if it's going to be useful to him then yes I would like to sell it ASAP.

Robert AMG

iTrader: (1)

he can use his ecu, working with the maf, he will need maf clamp and a custom single air intake to install the maf, he will need all front pullies of the 55K and injectors, upgraded fuel pump, front heat exchanger, custom tune with lower timing.....
the best choice is to go with 55k harness and ecu(using map sensor).

tw2

I believe the pulley brackets, water pump and pump outlet are also needed. And of course a better fuel pump. Robert do you know how the supercharger clutch could be controlled when using the N/A ecu?

e500slr

I was gonna tell him to run an FSP. That would be one less headache for him and if the ECU in the CL500 doesn't have the same issues like the AMG one of looking for a clutch that's not there, it's 2 birds with 1 ecu.

tw2

That is definitely an option. Is the tuning sorted out for that? I remember reading at one point that there were still problems getting it to run smoothly.

Otherwise for a stock pulley all I could think of would be a throttle opening switch to activate the clutch above light throttle....

Are there any issues with the bypass valve or is that all pressure controlled within the supercharger itself?

Just for reference eurocharged have said that they can tune the N/A ECU with MAF sensor for a supercharger no problems.

e500slr

Not sure but the FSP should react differently with this ECU because it never had a clutch programmed in it so it's not gonna "look" for it. I think that's the issue they were having with the AMG supercharger. It was still thinking a clutch for the SC existed and so at low RPMs it would bog or something.

Z_de_Suisse

I think you should just tell him that doesn't work. A guy that want's to add a K to his engine but doesn't know what is required to do it ... that can't be serious, right ?

That will save you the pain of the guy coming back afterward to tell you it doesn'^t work.

e500slr

Well I'm not a liar or a thief, I like being honest up front but I have a no returns policy so I tell people to do their research because I only offer five finger refunds

I do want to sell it though and if he wants to put a supercharger on his 5.0 then why not. I think I have the injectors and some other bits too because I bought the car wrecked and stripped it.

Robert AMG

iTrader: (1)

the best solution as i said is to use the harness and ecu of 55k, he will not get any problem that the guys are talking about, he will be as factory.
if he wants to stay with the 5.0 ecu, he will need an rpm activated switch or similar part to connect it to the clutch, the clutched will be activated above 1000 rpm and deactivated below 1000 rpm cause there will be no bypass with the 5.0 ecu and he need to close the opening in the ic and tb inlet,
the fsp is not a solution, cause he still need a bypass for the car to idle below 1000 rpm.

Yacht Master

Poor guy with CL, has no idea what he is doing. In the end he will spend far more money trying to cobble together a blower motor than, it would cost him to sell his CL 500 and buy a CL 55 or a CL 600.

Sad part is, at some point a real 55K owner will need a supercharger......

tw2

I didn't realize the bypass valve was ecu controlled in this car. Makes a conversion a lot more difficult. Or can you just shut it off? it might not be silky smooth but I thought a lot of supercharged cars worked like this, also without supercharger clutches.

e500slr

I nearly got a 55k buyer but I was busy and didn't take the supercharger off in time and he was in a hurry so he bought one elsewhere. Hell I still haven't taken the blower off the motor yet. I need to get my engine lift back because apparently you can't take the SC off without an engine jack. I had no idea it was that heavy.

I've told the CL500 owner about the challenges. I guess some people just assume things are plug and play. I personally don't think a conversion is a good idea most of the time UNLESS the difference between the original and the converted is massive and it's much much much cheaper to convert than to buy original. Right now, the CL55 isn't that expensive here and although more expensive than a CL500 you still have to think about time and labor, headaches and also resale. Resale on a converted car is......let's just say not good

If he wants to buy it regardless of the advice then it's not my problem. I'd love to get Ahmad's (blackbenz) take on this. He has experience with SCing the NA motor.

ctravis595

sorry to dig up and an old thread and forgive my ignorance, but why couldn't this work in theory?

kleeman makes a SC for the n/a m113 engine, but it's $9000+.

is there no way to disable the clutch in the kompressor units so that it runs constantly, ... but maybe with a large pulley, to create low/safe boost , isn't that sort of what the kleeman unit does?

I guess i just don't know how to find out more info about the differences between the kleeman/K units. it's a shame because the K units go for $600 all the time on ebay.

Sulaco

there are fixed pulleys for the stock 55k blower, they make it run constantly

Strigoi

Which is a completely different discussion that has plenty of posts about it on here.

tw2

This is why it is usually easier to swap the entire M113K engine and ecu in. Then you get full clutch control. But even then you don't absolutely need a clutch, just better for fuel economy. You do need a bypass valve though. The large stock supercharger pulley is usually too much for a NA engine with higher compression but everything should bolt together. There is a slightly larger parts list than just the supercharger, there are several brackets and pulleys needed, different water pump outlet among other things, MAF clamp if using stock ECU with a tune. The kleemann superchargers are eaton roots I believe, not in the same boat as the IHI twinscrew as far as performance goes. But they are designed specifically for the NA engine as it is, the IHI units are not. The old kleemann autorotor units are very rare now.