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300 CE24V Turbo charging

smoothcoupe

Active Member
Joined
May 9, 2005
Messages
424
Location
WEST YORKSHIRE.
Car
MERCEDES E55K-2001 AUDI S8-MERCEDES 300CE 24V SPORTLINE
I need some advice on turbocharging my 300ce24. Who specialises in doing these conversions and as a ball park figure how much will it cost, what is involved ie lowering compression, brakes etc. Thanxs.
 
At this point I think you have to ask if it wouldn't be better to buy something better suited to the task in hand.
 
I need some advice on turbocharging my 300ce24. Who specialises in doing these conversions and as a ball park figure how much will it cost, what is involved ie lowering compression, brakes etc. Thanxs.

Hi smoothcoupe, Bellow has a point ;)

Buying an already turbocharged car designed for the task is far more practical. Cheaper. Easier to modify as you effectively just take it further step by step. I don't know where you are located? Regardless. Some home truth's to begin with from someone who knows what he is talking about (the cost, pain, regrets, lies, pro's cons, excitment, stress & of course....$$$$'s) Basically I bought a badly built car chose to FULLY rebuild it no holds barred! Taking me on a very time-consuming journey that has after months & months, really only begun.

Firstly. Why do you want to turbo your car? Simple question but it involves what you are expecting out of the car & what you are willing to spend/do to get you there? Secondly. What is your realistic budget? A few grand to throw @ it or whatever it takes? I can warn you now if you are wanting a workshop to do everything it won't be cheap! If you trust them to just do what they think......you better trust them! Thirdly. What mileage is your vehicle? Turbocharging will stress any old car to the limit. You cannot place greater demand on a stock car without looking @ age, condition & all the other variables that will ensure things go right. If they don't. What are you going to do then unless you spend more money? :(

To begin with:

1) Why are you considering lowering compression. This is very old-school thinking unless you plan to seriously race the thing on super-high boost around the track & trust with your life the tradesman that will be rebuilding the thing? Not to mention mega $$$$ to spend.....and that's just the engine. Never mind the running gear to support it. General rule I found out the hard & expensive way. You don't rebuild a Merc engine unless it is broken unless you are going to race the thing professionally. They are way strong to start with. Stronger than just about anything else out there. If bottom end is sound you may want to reco the head, water pump, timing gear set etc unless engine has traveled low kms? Also. You will not have to lower compression in order to run respectable boost to gain massive streetable power. Higher boost on the street can be quite advantageous with the correct set up. Guaranteed! If you just have to lower compression I have for sale a set of Forgies worth a fortune I am selling ridiculously cheap as I am not planning on using them anymore.

2) Brakes? They should be up to it but you can always upgrade these. At this stage this is not your immediate concern.

3) There is no such thing as a ball-park figure I'm afraid concerning modification on petrol 300E's. Only those experienced with turbocharging &/or performance-minded persons will be able to help you along this path. If you want the most tried & true set up then consider the most common set up being the twin set up. RBYCC will be able to advise you o the twin turbo set up that is set up. This is what he is running with good success. There are a few very learned members, a few even on this forum that can advise you on this subject. Fewer who know the limits/potential of these particular model Mercs. Too many who haven't a clue I'm afraid. I have been heavily researching, debating, consulting & disproving many a claim along the way. I also converse with members from specific performance forums. To be honest there is alot to consider. Each part goes together to complement the other in synergy & what you do one way will effect something performing another way.

Biggest Pros with these cars:
1) Strong Engine
2) Strong bodies

Biggest Cons:
1) Getting the stock injection right to achieve desired power increase
2) Handling/Braking
 
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I need some advice on turbocharging my 300ce24. Who specialises in doing these conversions and as a ball park figure how much will it cost, what is involved ie lowering compression, brakes etc. Thanxs.


The least expensive route is to find a used or NOS TurboTechnics or Mosselman twin turbo kit that was designed specifically for your early M104 with CIS-E.

You probably have a better chance finding one in the UK then any other place in the world !!!

I would estimate about 7K-9K sterling for a professional install that would include not only the TT install/dyno tune, new large bore exhaust and the suspension modifications that help keep the power on the road surface. :thumb:

Ed A.
 
I need some advice on turbocharging my 300ce24. Who specialises in doing these conversions and as a ball park figure how much will it cost, what is involved ie lowering compression, brakes etc. Thanxs.

This as has been said is not a cheap option if asking someone else to do it for you.

A quick budget for a single turbo conversion: (based on you sourcing the parts and handing them over to be fitted)

Turbo - £1000
Exhaust manifold and downpipe - £1250
Waste gate - £500
Low compression pistons MLR head gasket - £1000
Intercooler and pipework - £400
Fuelling system and tuning - £2000

So you can see not a cheap option, but you will see 4-500bhp at the end :bannana:

Unfortunately once you do this, the above costs will only be the start.
 
The bargain of a lifetime was when Hughes decided to sell their inventory of NOS TurboTechnics M103 and M104 twin turbo kits.

1000 sterling complete with large bore exhaust system....:bannana:
 
I got a cheap 500e ............


Acid
 
I'm looking at doing this too. From a 220ce to 320 to 320 TT (but below edited for single kit as far as I've looked so far)

This as has been said is not a cheap option if asking someone else to do it for you.

A quick budget for a single turbo conversion: (based on you sourcing the parts and handing them over to be fitted)

Turbo - £1000(400-600 including intercooler,pipework,gate,etc)
Exhaust manifold and downpipe - £1250(<600 manifold,??? downpipe)
Waste gate - £500(Included in turbokit)
Low compression pistons MLR head gasket - £1000
Intercooler and pipework - £400
Fuelling system and tuning - £2000(1000 if you're lucky and search well,or know(join lol:o) some college course boyracers. lol)

So you can see not a cheap option, but you will see 4-500bhp(300+bhp) at the end :bannana:

Unfortunately once you do this, the above costs will only be the start.

I'm aiming at a 3-4k job and thats with a replacement engine and c36 gearbox! as long as I can bench fire the refurbed/rebuilt turbo'd motor on a stand for that budget, I consider it mission accomplished. :rock:
BUT, I do understand why everybody always always says buy a 500e or TT ready built however I just love when people are willing to modify.

And besides.. the good old embassador grill dumping its valve as it charges up behind in ones rearview is just hilarious..the 500e doesnt have that smile. :devil:
 
Post details re: 500e. Thanks
 

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