190E 3.0-12v Turbo - Page 31 - PeachParts Mercedes-Benz Forum

MAG58 · #**451** 04-13-2013, 06:55 PM

Quote:

Originally Posted by Joreto

Second gearbox is gone, this one gave up just after 3-4 times going WOT . Looks like I'll be switching to a gearbox from another car brand (probably BWM) since mercedes don't have a strong enough manual gearboxes .

Joreto, I'm talking to a company called TDswaps out in Oregon about a bellhousing they're working on for the R15x toyota transmissions (Also would work for the jeep gearbox which you probably cant find, an the Opel speedster MA-5 RWD trans you might have). I think this is the solution I'm going to go with since they're behind a ton of high hp cars and with the right parts (commonly available) they're quite strong.

yzn · #**452** 04-13-2013, 07:08 PM

i have seen 1jz engines with >400 hp here on bmw gearbox i think it was zf one

Joreto · #**453** 04-14-2013, 01:26 AM

I'm going to use a ZF BMW box since they can be found cheap and are proven to handle a lot of power.
Here is a picture of the getrag box, 1-4-th gear look almost identical

P.S. This weekend I upgraded to a t66 twinscroll turbo, also made a few modifications to the exhaust header which will lower the backpressure by a lot, however due to the problem with the gearbox I never got a chance to test the new setup

ck1 · #**454** 04-21-2013, 03:38 PM

Hi, Joreto, nice project.
can you tell what kind of EGT you have on 0,7 boost at 5000 - 6000 rpm? I 'm turbocharging my w201 with 3l. m103 and how i have EGT in range 840 - 865 celcius. I am confused, dont know, is this EGT range normal or critical.

Joreto · #**455** 04-24-2013, 04:02 AM

Hi, I haven't logged EGT on this engine since my EGT probe broke . In my opinion you EGT i fine .

Joreto · #**456** 04-30-2013, 04:42 AM

Since the car is in the garage for a new gearbox, I've decided to make a few changes and fix a few problems on the setup. I have swapped the turbo for a T66, which required a modification to the exhaust manifold since this turbo is bigger and hit the valve cover. The manifold was reworked to become more or less a twinscroll, also a few sharp edges in the exhaust manifold that contributed to a lot of backpressure were smoothed out . Last but not lease the downpipe has been change and redesigned for better flow, it's also a bit larger 88.9mm, old one was 76mm.

Exhaust manifold

downpipe

old downpipe vs new one (before welding)

the turbo

That's it for now, hope the next update will be of the gearbox modification

Joreto · #**457** 05-13-2013, 06:07 AM

Started work on fitting the new gearbox, it from a diesel BMW (330d/530d/525d) .

Then we mated the gear box to an old engine block I had with everything fitted ( flywheel, disks, throwout bearing, clutch pump ect.) .

Here is the difference in thickness of the flex discs and flex disc bolts, bottom one is the BMW flex disc

Joreto · #**458** 05-15-2013, 04:29 AM

Two videos from last year

Mercedes 190E 3.0-24v turbo, Kondofrey 2012-10-06 - YouTube

Mercedes 190E 3.0-24v turbo, Kondofrey 2012-10-06 - YouTube

Joreto · #**459** 06-03-2013, 03:26 AM

This saturday we mated the gearbox to the engine.

Joreto · #**460** 06-09-2013, 11:12 AM

Almost done ...

gearbox mount

shift mechanism

gear knob is only for measuring purpose

shortened drive shaft

Joreto · #**461** 06-25-2013, 03:27 AM

This weekend I mounted the gearbox, drive shaft and the new turbo on the car, only thing left is to mount the exhaust system (currently only the down pipe is mounted). I did a little driving test with the new box and everything seems fine. I'm very pleased with the gear changes, they feel a lot better then the getrag, guess it's due to the shift mechanism. Hopefully this coming weekend the car will be on the road so I can participate in the upcoming open drag day.

Two pictures of the new turbo setup, turbo is a twin scroll t66 .

E36T · #**462** 06-25-2013, 07:53 AM

Looks neat.

Is there room to drop the air intake lower and perhaps pick up some cooler air?

Joreto · #**463** 06-26-2013, 03:47 PM

To be honest, I haven't measured how much space there is but I don't think it's a lot since the alternator is in the way. This weekend I'll check.

whipplem104 · #**464** 06-26-2013, 07:44 PM

Looks really nice and clean. How is it feeling?

Joreto · #**465** 06-29-2013, 02:01 AM

Thanks, gearbox feels really good, the new turbo....well I can't say for now since I've driven the car only a little because there is an oil leak from one of the lines for the oil cooling (at the oil filter housing). I've ordered a replacement seal, but due to work I'll be able to change it next weekend. Hopefully I'll have the car ready for the open drag day on 13-14 July (it's time I hit official 12-s :-D ).