consensus seems to be that intake and exhaust are not parts of the solution. i think the main targets (there is a lot more on this on the superturbodiesel engine forum) are increasing turbo boost and delivered fuel.

 

our exhaust is the equivalent to a glass pack on a gas-job, straight through, minimal silencing, not much improvement there

intake-diesel, so enormous intake, no need to port and polish because of the turbo...no improvement there...but an inter-cooler would help-but be minimal, when you start getting in the 200's you might look there for a few horses, but the cost isn't beneficial(my opinion)

more boost and more fuel are the biggest thing that need to be solved, the ALDA can only be adjusted so much for added boost

you could deck the block or head in hopes of raising compression, you might find a few hidden horses there, but watch for piston clearance

another thing is balancing-while it may not add power, it could rob it...this of course requires tearing the block down-again not worth it unless racing at high RPM for extended amounts of time

 

I like this thread already Does anyone know how much power one can achieve tuning/modifying the stock IP?

 

With a stock IP and turbo you can reach about 150 hp with tuning, no IC needed. Removing the rear muffler WILL improve the engines response as it does restrict exhaust flow. Removing the center muffler/resonator does not do as much good and soon the drone becomes annoying. Going to a larger exhaust is difficult as there is not much room following the stock exhaust pathway for a larger exhaust.

 

The place down the street and around the corner had one on the dyno they had an M pump built it was like 1500 bucks and put a turbo off a 5.9 Cummins bent the rods at 300 hp

 

I imagine at 300hp this little car would have been pretty nasty, did he have anything done to the trans? Your looking more than double the stock hp.. Hell my 6.5 doesn't even have 300hp and it's pretty well built -_-

 

They stuffed the motor in a Dakota with a race trans took it out to the salt flats herd they scored the cylinders to much cold air

 

Wow, I really want to mod my IP, after all I do have a spare. I just don't know if the results, and the possibility of engine runaway, would be worth it... Hopefully we will get more info. on tuning.

 

I would love just to run a little more boost on my car and cut the muffler off and put on a glasspack purely for laughes. Is 15lbs of boost too ambitious on a stock steup?

 

I have an extra Wagon going to take it to the drag strip get some time runs then start playing with the turbo and pump just got a few things to fix first

 

Send the pump to myna or dieselmeken, buy a larger turbo maybe VNT. Strengthen the transmission. Still be slower then a OM603/OM606. I'd recommend swapping the heavy 617 for a 606.

 

even 175 hp in my 300D non-turbo 5 speed would make it zippy

if only i had the know-how and the funds....anyone can just swap another motor in but the real beauty would be to see how much power these motors could handle on mostly stock internals

 

A modded 617 is a ticking time bomb, a modded 606 is proven tough even when north of 450hp.

 

The Super Turbo Diesel forum has a wealth of knowledge on the topic.

Generally speaking the reliability of modifications is a direct result of the amount of engineering and the reliability of all the systems altered from the factory setup. Making adjustments to the stock equipment is your safest bet. Any further than that and you are subject to the quality of "field engineered" components. Remember, just because some guy online made it run is not a guarantee that it will work for you.

Personally, If I wanted a more powerful Diesel, I would just buy a W210...