My mods:
P/P heads
Smaller pulley on Blower (p/p heads dropped boost to 4 psi, smaller pulley raised up to 9-10psi.
Eaton blower.
Klee Headers / 300 cell secondary cats / resonator / stock single amg exhaust.
PTE Cams / PTE ti retainers.
Klee Tune
Klee fuel system mods (come with kit).
180 therm (PTE)
LSD

I've got a set of MBH headers Longtubes sitting in the den... waiting for my next round of mods.... can't decide if I want true duals ex or just longtubes and current exhaust.

I don't want to increase airflow too much more than current setup..... car get's lean in winter... LTFT's up to 1.16..... in summer drops down to 1.075..... hoping longtubes don't uncork this so much so that it affects my current tune.


MBH Longtubes VS klee-midlength headers.... my experience with centrifugal blown cars..... long tubes provide more TQ.... but we'll see.

 

Damn, it's true, they do grow'em BIG in TEXAS! LOL

 

I took my old terminals to work today and checked them (I knew I had seen them before somewhere) and the one on the blue wire was loose as hell. These micro 64 terminals are really weak, now that I know what they are I agree with exactly what Cory said about unplugging them a few times. Chances are, anyone with a stock car will never see this problem.

 

Nice, I think I'm running 7psi boost right now and running a little rich (10.1 under load). Brandon said I should be right around 12.1 once I get the headers so I decided not to mess with the fuel pressure regulator.

Is your fuel upgrade the older inverter on the factory fuel pump setup or does it have the newer secondary fuel pump under the hood?

The Quaife is probably my favorite mod. It make the car so much more controllable. I was scared to try and slide it around before because I never knew what it would do. Sometimes it could cut the throttle completely, sometimes it would shift to second, sometimes it would do both, and sometimes it would do nothing!

The MBH headers are nice for sure and I'd definately really love to have them, but I just don't know if they're worth 3x the price. If they were $2k, I'd probably do it.

 

Just got back from dealer parts dept: he ordered the part.... $6.90.... is this correct? Seems super cheap?

He was also trying to sell me these $8/each little wire connectors..... I was like.... "I'll just solder/shrink wrap them"..... and parts guy smiles and says .... yep that's what I'd doo

I'm running 10.5-10.8AFR in summer under full load...... in winter it's 10.8-11.2.... so still OK.

Fuel system is the old style setup with a few parts:
1. Fuel pressure regulator behind fuel tank. Ref boost. I data-logged it: runs stock fuel pressure up to -4psi... then starts to rise to max 100+psi up top...... this tricks the stock injectors into being bigger than stock.

2. DC-DC invertor... for fuel pump.... above 3-4psi of boost inc fuel pump voltage.... like a kenne belle boost-a-pump from the old days..... this is micro-adjustable... I have not touched it...... PTE has tweaked his.

3. MAS signal voltage rheostat...... adj 300K Ohm on up to 1000K Ohm max..... this allows your stock mass air meter housing and stock mass air meter element to not MAX OUT with the blower and all that excess air and still keep stock MAS calibration volts/Mass air...... technically my stock mass air meter is "pegging" in winter... above 5 volts..... but no amount of res adj would take me below 5 volts and still keep AFR happy under load.... so I put it back to 500kohm..... and just don't drag race on a track in winter

MBH headers are a work of art...... I just pop open the box every once in a while to oooogle..... and stare.... but I'm weird like that


Another tip on keeping these klee cars happy... I checked my plugs after first 5K miles with blower and they were knarly bad..... crusty..... I suspect due to all the dyno-tuning under various states of tune..... so I put in new plugs and car woke up a little. my klee tag says change plugs every service..... so I've got another set for my next oil change service I do at home. FYI.


GRAMM - LOL...... bigger car repair bills too

 

Yes, they are cheap. How many did you order? I ordered 6, but they came with the female terminals on both sides so I really only needed 3.

I've not seen anyone on here yet saying they've got the new design fuel setup like I have that does away with the dc-dc interver and puts the fuel pressure regulator under the hood so I was just curious. I set the MAF clamp at the 500kohm and haven't touched it either.

Yeah, I've got a torque converter sitting here for the Trailblazer waiting on me to buy headers for it also before it goes it (exhaust is a ***** to get in and out on V8 Trailblazers, so I don't want to do it twice!).

Yeah, I noticed that on the tag about the plugs. I wonder what they consider the service interval, because I've been changing my oil every 2500 miles in this car (at least for now, I may go a little longer later but it won't be much longer). Yes I know, wasting oil, money, blah blah. It makes me feel warm and fuzzy inside.

 

The parts guy ordered 1 terminal, and one harness for me to check out. We'll see what comes in next Tues LOL.

I was getting excited when I read Tq converter.... was thinking for the AMG :!!!! they do make em you know.......

Thanks for this good post... helped me mucho.

Jeff

 

I actually have no complaints about the stock torque converter in the C55.

 

Any idea if the connector is the same (or close) to the one on the C32? Pretty much narrowed my similar problem down to the TB wiring harness but I can't find the part #, nor can three different stealerships.

 

maybe you can take this part number to the dealer, and say, "I need this exact part except for the C32"??

 

"The part number I ordered was: 000 540 26 05."
I ordered the above part for my clk55 TB 74.5mm..... it is for a wire with connectors on each end. You simply cut the wire in half and you have 2 of the 6 connectors.
You need to order 3 of these from your dealer.... mine were $6.8/each.

I believe the TB is the same on the C32 and C55 and Clk55.

 

I believe the throttle body is the same for the C32, if it is then the terminals will be the same.

 

Which connectors are they? One to the TB itself and the other to the secondary part of the wiring that snakes down to the main engine wiring harness? I looked it up in MPC and it's not very specific.

 

You want the little tiny femail connector terminals that go into the femail plug that plugs directly into the TB.

There are 6 little metal connectors which you'll have to solder into the wiring harness and then push into the stock connector shroud.

My parts guy @ MBUSA was able to order from the p/n above. You will need 3.... as they come with a conector on each end... you cut in half and get 2 on each wire.

Don't let them sell you the MB solderless connectors @10/ea...... just solder/heat shrink should be fine.

 

Thanks for the walkthrough. Part of my problem is that the plastic female connector that plugs into the TB isn't in good shape itself. From the part # you got, though, I can probably trace it back in MPC and find the # for the replacement plastic piece too.

 

So, finally got around to doing my parts research to replace the entire TB actuator harness and ordered 3x of the wiring harness (0005402605), the plug housing (2105403681) and the plastic covering for the plug itself (0005453346). $36 and change from Parts.com where my local stealership wanted $60+ not including a new plastic covering. I'll do a write-up with pictures once the parts show up.

 

 

You guys were right, btw - the C32 and C55 have the same TB. The parts guy confirmed it and double-checked in EPC.

 

I think also the early year W211 E55's.

 

Evil - can I get the p/n's for the male connector plug? THX>

Since I acquired the 3 wire connectors..... the problem has ceased..... so I'm holding off until I get no-go from my go-pedal again

 

Hi. Has this fix taken care of the problem til now? It's been almost a year now since you did this. Has the problem come back?

I'll check the dealer tomorrow for this part number with the female connectors.

Thanks for the info!

 

Hi there. I'm about to do the replacing of the female plugs of the connector as suggested by Cory. Did this fix your problem for good?

I forgot exactly where the connector is on our engines. Would you have a picture or a shot of the connector on your setup? I know there's a pic of it in the Kleemann installation manual but I can't remember exactly where it is on the engine.

Thanks in advance.

 

Hi Evil. Could you possibly post some pictures of this? Any problems after the fix?

Sorry everyone for the bombardment of messages. I am just so frustrated right now to get these gremlins resolved so I can enjoy the car!

 

Does the 55K have dual intakes that sweep back to the rear-center of the engine on top? If that's the case, the connector should be right on the TB, toward the top, on the driver's side of the car IIRC. Slightly different throttle body though, so don't quote me.

 

4:30AM here right now but I'll take a look around to see if I still have the pictures tomorrow for ya