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-   -   eking out better performance in a 240d (http://www.peachparts.com/shopforum/diesel-performance-tuning/260298-eking-out-better-performance-240d.html)

240dddd 09-01-2009 02:50 PM

eking out better performance in a 240d
 
I realize that performance doesn't really fit when talking about the 240d, but being new to diesels and mercedes I am wondering if there are any techniques to squeezing a few more HP out of a 240d, assuming it is already tuned and properly maintained?

Any threads or online resources someone could point me to regarding this topic?

thanks

oldsinner111 09-01-2009 04:12 PM

Exhaust,more air,and constant fuel supply(add electric boost pump).

240dddd 09-01-2009 04:37 PM

Thanks. What kind of exhaust setups have people tried out? Any info available?

oldsinner111 09-01-2009 07:11 PM

MY sig. straight exhaust,delete all mufflers if legal.Or go with one,like a diesel rated turbo.

clacker 09-02-2009 10:00 AM

A 240D with straight pipes is going to be much louder then most people can live with, been there...it is very loud and attracts much police attention!
At least run a cherry bomb or similar flow thru type muffler that does not restrict or plug up with soot.

oldsinner111 09-02-2009 02:40 PM

Glasspak packs with carbon.There is one that does not use glass wool.

240dddd 09-02-2009 02:56 PM

I guess this raises the question as to whether opening up the exhaust flow produces any noticible difference in an OM616?

A few years back I put a straight-thru exhaust on my volvo 240t and was surprised at the difference the exhaust upgrade made in regards to the improving the overall feel of the engine's power.

Cervan 09-05-2009 04:48 PM

Pull the head off and have it ported, have a 3 angle valve job done and the head skimmed a little bit. port the intake and exhaust manfolds, and then install nitrous.

Renntag 09-09-2009 09:55 AM

I have an 83 300TDT and would love to eek a little more juice out of it. Has anyone changed the intake system? I can imagine that breathing more fresh cool air and allowing the crankcase to breath to atmosphere would help. Closing up the EGR and similar soot building systems might help keep the head clean.

I have often considered a larger exhaust with a free flowing muffler, but dont wish for the car to be too loud. I drive a race car and get my "noisy jollies" there.

I have a question about this:
oldsinner111:
Quote:

  • 83 300sd
  • 19.5 psi boost
    • What is stock?
  • straight exhaust
    • How loud is it?
  • 94 Cobra intake
    • What portion of the intake system?
  • Mustang E Fan 3800 cfm
    • Factory 94 and up electric puller fan?
  • monark nozzles
    • Does this alter spray pattern of the injector?
  • electric 5 psi fuel pump
    • What manufacturer? Is this a big help?
  • wvo,watf/wmo capable
    • What changes have you made to do this? How clean is your ATF/MO ?

Has anyone modified the injection pump? Other than the obvious need to get more air in and not hold it up on the exit, the factory fuel system can only deliver but so much fuel, thus limiting the power making potential of the whole assembly.

I had read previously that there was a place (Europe?) that modded the stock injection pump. Is there an easy Turbo upgrade?

Thanks in advance for any answers.

tomnik 09-10-2009 06:34 AM

Quote:

Originally Posted by Renntag (Post 2289704)
Has anyone modified the injection pump? Other than the obvious need to get more air in and not hold it up on the exit, the factory fuel system can only deliver but so much fuel, thus limiting the power making potential of the whole assembly.

I had read previously that there was a place (Europe?) that modded the stock injection pump. Is there an easy Turbo upgrade?

Thanks in advance for any answers.

6mm MW elements are running since more than a year. Yesterday the new MW65 Holly elements arrived. Just one set and I have to get the swap and adjustment done. Also new to my 82 SD is a VTG turbo out of a 320 CDI.
The thing here is the vane control. Hopefully in 2-3 weeks IP and turbo will work in the SD. The exhaust is a 3" SS with one free flow muffler.

Tom

Renntag 09-10-2009 11:46 PM

Quote:

Originally Posted by 82-300TD (Post 2290390)
Never heard of a 300TDT, maybe you mean 300TD?

Nope. Certainly not.

Here have a look.

Here is one.


Thanks for the link. It is very informative.

tomnik 09-11-2009 07:59 AM

Quote:

Originally Posted by 82-300TD (Post 2291327)
Nope, sorry. I still don't see a "300TDT", just a 300TD.

T is "Touring"
D is "Diesel"
T is "Turbo"

Tom

KarTek 09-11-2009 08:03 AM

Don't worry, it's just a game we play here... Or, in some people's cases, it's a way of life: The "trunk badge of truth" :)

tomnik 09-11-2009 08:31 AM

Thanks.

btw. , Evan,
I might want your 7mm elements.
A couple of weeks ago I sent you a PM concerning the 7mm elements.
Mid of October I can tell you more.

Tom

KarTek 09-11-2009 08:51 AM

Hey Tom, yeah, got that. I can't decide what to do about the potential failure. Do you have something to replace them with? :)


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