V12 twin turbo? Here I come!

In reply to Cotton:

Eurocharged seemed like a good shop? They were on my short list of places in town to haul the R63 lump if a rod were bent though I never did call them because I never ended up needing to.

In reply to petegossett:

It was wild. The twin turbo Gallardo was cool too. They have 80k miles on it and it was a former track rental. He said they really beat on it and it has 40k plus miles on the conversion, but has still been very reliable. The Ferrari only had around 6k miles and had just been sold to a customer, but he said it was a beast.

mazdeuce wrote: In reply to Cotton: Eurocharged seemed like a good shop? They were on my short list of places in town to haul the R63 lump if a rod were bent though I never did call them because I never ended up needing to.

Yes, I dealt with Phil and he seemed like a great guy. They had several highend Mercedes back there getting some serious mods. Since you're local I'd stop by just to talk with them and get a quick shop tour.

Cotton wrote: In reply to Tk8398: Yep, that's the one. I've read some of the internals were changed to handle the power of the TT v12, but I don't know the specifics.

From what I have read about them the internal parts are slightly larger and the case is longer, it would be the same as in the later v12 w140 with a few minor upgrades. I wasn't sure what year they switched to the 772.9, I would much rather have the 722.6, the newer transmissions have parts that you can't buy without paying the dealer to install it. Btw you can buy the proper fluid on Amazon (shell atf 134) for quite a bit less than the mercedes branded fluid. I wouldn't use anything other aftermarket fluid though.

What's the engine bay packaging like on the CL? Is it the same as the S or is there a little more room to access things?

nullcell wrote: What's the engine bay packaging like on the CL? Is it the same as the S or is there a little more room to access things?

No real difference that I've noticed so far. It's pretty tight under the hood of both of them.

Yay tune time!

Okay this is insanity. 2003 cl600, all stock with the exception of tcu tune, so no ecu tune yet. 187k miles. This was on a dynojet and the best run was 402hp and 574tq to wheels!!

So I did 4 pulls then popped a coolant hose, well not really popped, but developed a pretty serious leak, but all runs were between 380 -402hp and 550-574tq. The dyno graph is so flat....looks like a diesel...once the turbos spool it just pulls and pulls. I did get some occasional misfires, but not enough to put it in limp mode, so the coolant hose was the only real issue. I'll scan the graph and post it up Monday, but these numbers are better than I expected for a stock higher mileage car.

What's next? New intercooler pump, plugs and right coilpack, valve cover gaskets, muffler delete, ecu tune, and fix the coolant leak of course, then back to the dyno.

Good lawd

You may very well find yourself with a high 11 sec limo... if you can get it to hook up.

What's the TL/DR on failures so far?

mr2peak wrote: What's the TL/DR on failures so far?

This car had a lot of needs right off the bat and here is the rundown so far:

Gauge cluster repair: 229

Transmission shift module repair: 200

Transmission conductor plate and 13 pin connector: 129

Transmission filter, atf, gasket kit: 82.99

Hydraulic hose to fix suspension: 90

Two abc accumulators: 300

Hydraulic fluid and filters for abc and ps: ~90

Boost pressure sensor: 30

24 ngk iridium spark plugs: 208

Valve cover gaskets: 80

Eurocharged tcu and ecu tunes/Black Friday sale: 700

I think that's it so far. I still need to get one coilpack rebuilt, which will run me 700.

What you think shipping a s600 from Tennessee to southern California would cost?

In reply to yupididit:

Man it probably wouldn't be cheap, even for open transport. I sold an old Volvo 142 to a guy in southern ca for 1200 dollars and I'm pretty sure the shipping cost more than the car.

So I tore into the CL this afternoon and replaced the valve cover gasket, coilpack, and plugs on the right bank. I broke many brittle vacuum lines, so will address those tomorrow, then button up that side. I'll probably tackle the left bank plugs and vc gasket next weekend sometime as well as the leaky coolant hose.

Posting in the thread for no other reason than you are an astoundingly good bad influencer... There are a couple of these around me for 5-10,000 and a couple being parted out. The M275 seems easy enough to MS as well and that removes most of the quirky MB stuff.

Ross413 wrote: Posting in the thread for no other reason than you are an astoundingly good bad influencer... There are a couple of these around me for 5-10,000 and a couple being parted out. The M275 seems easy enough to MS as well and that removes most of the quirky MB stuff.

oh I didn't need to hear the MS thing..... I really like this engine and thought about how awesome it would be in an old car, like say this particular 65 Riviera project I have sitting around, but I figured it would be too hard to make it work. Maybe not though....

I am just trying to see what the bellhousing shares patterns with. Worst case, the stock auto has a removable bell that could work with a bunch of stuff... Seems that MB shared bellhousing with a bunch of engines. Just need to see which one can work with a t56 or Mopar tr6060... Mmmmmmm.

Cotton wrote:

Ross413 wrote: Posting in the thread for no other reason than you are an astoundingly good bad influencer... There are a couple of these around me for 5-10,000 and a couple being parted out. The M275 seems easy enough to MS as well and that removes most of the quirky MB stuff.

oh I didn't need to hear the MS thing..... I really like this engine and thought about how awesome it would be in an old car, like say this particular 65 Riviera project I have sitting around, but I figured it would be too hard to make it work. Maybe not though....

You could always use the m120. No turbo but over 380hp from those motors easily. They were underated from the factory, of course you know all about that

Thought I'd post some pics from the recent work. Old coilpack before being pulled (long black piece at bottom of valve cover):

Coil out:

Also, dyno graph:

So I addressed all the vacuum lines I broke while removing the valve cover, then took the car out for a test drive and it's running great....better than ever. I also replaced the intercooler pump last night, which was an easy job, and found the source of my coolant leak, which turned out to be one of the main coolant hoses. I ordered it from the MB dealer because they were, shockingly, the cheapest I found at $66 and could also get it the soonest (tomorrow). Next up is coolant hose tomorrow night, then left bank plugs and vc gasket over the weekend, apply ecu tune, then hopefully opening up the exhaust a little.

That horsepower and torque curve...just glorious

Is that the ECU sitting there right in the middle?

In reply to yupididit:

That's the ignition control unit. If you have a misfire, and it's not the coils or the plugs, odds are that's the culprit.

Got it. Thanks!

I fixed my coolant hose leak today and put some more miles on the CL and nothing else broke! I guess I'll drive it on my 100+ mile round trip commute next week to see what shakes out on the longer drives. I recently replaced the intercooler pump, but didn't refill the system, which is independent of the engine coolant, so will do that tomorrow and then bleed. The weather is nice, so hopefully I'll be able to wash it and get some pictures too. I'll tune it mid next week, then it's back to the dyno.

Today I added another little German machine to the stable. One family owned 74 Porsche 914 with the 1.8. My first 914, so we'll see how I like it. It will be much slower than the CL, but should smoke my stock 36hp bug!

I'm going to flag my own post, so hopefully a mod will move it since this has turned into a build thread.