OM616 turbo pic - PeachParts Mercedes-Benz Forum

yoterbenz · #1 08-02-2008, 11:39 PM

I'm gonna make this short. A person close to me asked me to look at this 82 240D for sale. Since I have a 240D he thought I should look at it before he invested time and potential money into it. Well the pic speakes for itself. The body and interior need some TLC but the motor..... yeah as you can see it has a 617 turbo on it. I was instantly sold and well he bought the car.

It totally outperforms my car as far as the motor is concerned. My car is in better shape but this thing will do laps around mine. It puts out about 5 pounds of boost with the wastegate disconnected. A total pleasure to drive.

#2 08-03-2008, 12:03 AM

It would spool up a lot quicker with the K26 turbo. The stock 617 air filter would be perfect for that engine.

yellowbenz · #3 08-03-2008, 12:17 AM

Looks nice. Would be interesting to see some real data on that car like MPG, 0-60 time etc. Hope it doesn't cook the engine. I wonder if those turbo om 616's in India are modified with piston squirters and Na filled valves.

jkoebel · #4 08-03-2008, 12:23 AM

They are, supposedly. There's a guy on here, Gurkha I think, who knows all about them.

Cervan · #5 08-03-2008, 12:59 AM

how are they injecting more fuel?

bgkast · #6 08-03-2008, 01:34 AM

Quote:

Originally Posted by yoterbenz

It puts out about 5 pounds of boost with the wastegate disconnected.

That's not right, it should put out about 25 psi with the wastegate line disconnected. Perhaps the wastegate is stuck open.

Edit: I thought that was a 617 turbo engine. 5 psi is about all I would run in a 616

#7 08-03-2008, 01:43 AM

Quote:

Originally Posted by bgkast

That's not right, it should put out about 25 psi with the wastegate line disconnected. Perhaps the wastegate is stuck open.

Its only going to have 4/5 of the possible exhaust volume, even with enough fuel. I'd be amazed if it could touch 20 with extra fuel or 10 with the stock fueling so 5psi sounds about right without any enrichment. The K26 would probably get higher just because of its smaller turbine.

Graminal95 · #8 08-03-2008, 04:53 PM

I've been running my 616 turbo for about 1500 miles now, running 6.5psi and getting anywhere from 29.5mpg to 37mpg. The get up and go is sooooo much better then it was before and it even drinks a little less oil since I don;t have to rev it as high.

I can hit over 18psi with the waste gate inoperative, but am very happy with my 6.5.

If I had that intake I would be using the 300dt filter assemble. I get so much noise from my intake and it would be nice to quite it down.

Gurkha · #9 08-06-2008, 05:11 AM

Quote:

Originally Posted by jkoebel

They are, supposedly. There's a guy on here, Gurkha I think, who knows all about them.

Yep, they got it all, oil squirters, sodium valves, oil cooler and 617 turbo chain driven oil pump and mated to G1-18 5 speed, its quite peppy.

t walgamuth · #10 08-06-2008, 05:39 AM

I see it lacks the expansion tank.

Tom W

winmutt · #11 08-06-2008, 10:24 AM

Quote:

Originally Posted by Graminal95

I've been running my 616 turbo for about 1500 miles now, running 6.5psi and getting anywhere from 29.5mpg to 37mpg. The get up and go is sooooo much better then it was before and it even drinks a little less oil since I don;t have to rev it as high.

I can hit over 18psi with the waste gate inoperative, but am very happy with my 6.5.

If I had that intake I would be using the 300dt filter assemble. I get so much noise from my intake and it would be nice to quite it down.

Try adjusting the rack limiter to the max.

winmutt · #12 08-06-2008, 10:27 AM

It is also missing the oil cooler. I would recommend installing both for longevity. As Ghurka pointed out, the turbo om616 properly done has all the goods from the om617.95X

Graminal95 · #13 08-06-2008, 10:39 AM

I've adjusted the rack limiter a few turns, added an alda and dialed the fuel back down so that I have a good cruise egt of ~700* and max of 1050* on really long uphill full throttle at 75mph. I'm not sure if the oil cooler comment was for me, but I have the stock 240 cooler in place, not as large as a 617 but should be fine. I'll be adding a oil temp sensor later.

With out the added fuel from rack limiter adjustment, the car was just as slow as it was without the turbo.

winmutt · #14 08-06-2008, 10:46 AM

Quote:

Originally Posted by Graminal95

I've adjusted the rack limiter a few turns, added an alda and dialed the fuel back down so that I have a good cruise egt of ~700* and max of 1050* on really long uphill full throttle at 75mph. I'm not sure if the oil cooler comment was for me, but I have the stock 240 cooler in place, not as large as a 617 but should be fine. I'll be adding a oil temp sensor later.

With out the added fuel from rack limiter adjustment, the car was just as slow as it was without the turbo.

What about 135bar injectors?

Graminal95 · #15 08-06-2008, 11:28 AM

I didn't install 135b injectors. I have the internals to make my stock ones 135 bar, but all I did was pull, clean, and balance mine to ~125bar. When STT made turbo kits for the car they did not say anything about upping the pop pressure of the injectors, but seeing as all turbo cars at set to 135bar from the factory I decided to go middle of the road with 125.