Hello to everyone,
I have a Mercedes w201 190 with 2.5 diesel engine manaul transmittion.
I am thinking to fit a turbo on my Engine.
Does any one tried to do this on his engine?I saw exhaust manifolds for turbo for sale on e bay(second hand)I think it will increase in horse power.
Do I have to modify the engine for the turbo or I have to change the pistons gaskets etc?Is the compression different from the turbos to non turbo?
For the gearbox ratio I don't care,because I'm going to fit the turbo to increase the power in small gears first second and third.

Thanks and Season Greetings
Redent

Redfar,

If your engine is computer controlled, you are asking for a lot of trouble. The entire computer program would have to be reprogramed.

P E H

I'm not sure but if I'm not wrong the 2.5 diesel on the 190 is not computer programmed.

I have thought of the same for my 190d, but as has been said many times, the turbo engine is built quite differently from the normally aspirated. The injection pump works in conjunction with the turbo to increase fuel with increased boost, and the engine has several modifications including oil jets to cool the pistons. It might be ok for low boost levels, but for longevity it is easier/better to replace the engine with the properly designed turbo version.

Hi Skivvies,
Thanks for your info,
Do you fit a turbo for yours?

You could do it with manifolds, turbo, injection pump, etc from a parts car, but there's no guarantee that your pistons & exhaust valves would last long enough for the project to be worthwhile. The factory turbo has sodium cooled exhaust valves and oil cooled pistons, for example. Mercedes factory turbos run at extreme temperatures (you can usually hit 1300-1400 degrees exhaust temp in a factory spec turbo) and I doubt you could match factory power with any degree of reliability in the non-turbo engine.
My advice is to get a wrecked turbo and swap engines, radiators, etc. I hope you find one that wasn't wrecked in the right fender like mine was, that fender is made of unobtainium.

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'79 300SD W116
'86 190E 2.3-16V W201
'92 300D 2.5 W124
'99 E320 4MATIC S210

No I have not fit a turbo. If ever I find the perfect opprtunity (meaning cheap and local) I will replace the 602 with a 603 turbo. My 190d is a stick shift too, so a turbo would be lots of fun.

I bought an '87 190D 2.5 Turbo with a blown automatic trans, and did the 5-speed swap. I think it's a lot easier to switch transmissions than it is to add a turbo to an engine that wasn't originally designed for one.

SteveM.

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'93 190E/D 2.5 Turbodiesel 5-speed (daily driver)
'87 190D 2.5 Turbo rustbucket - parts car
'84 Dodge Rampage diesel - Land Speed Record Holder
'13 Ram 2500 Diesel
'05 Toyota 4Runner

You can't simply "add a turbo" to your engine, unless you like to blow up engines.

The job is also impractical. Go buy a turbo model.

if your willing to gamble with a turbo addition...... but wise enough not to do it..... then you might consider gambling on LP fumigation. (boost via LP injection)

__________________
"If anyone knows other lessons I need to learn, please tell me. I'm tired of learning them the hard way".
by JerryBro

The Glow Plug Wait: This waiting period is a moment of silence to pay honor to Rudolph Diesel. The longer you own your diesel the more honor you will give him". by SD Blue

My normal daily life; either SNAFUed- Situation Normal... All Fouled Up, or FUBARed- Fouled Up Beyond All Repair

62 UNIMOG Camper w/617 Turbo, 85 300SD daily driver- both powered by blended UCO fuels

Howdy,

SteveM, When you did your conversion from an auto, does the crankshaft have a place for the pilot bearing or does the manual tranny bolt up with just a flywheel change?

Sholin

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What else, '73 MB 280 SEL (Lt Blue)
Daily driver: '84 190D 2.2 5 spd.