Rebuilding with MORE power :)

[Goowrangler]

are diesel mercedes similar to semi-tractor trailers? if when rebuilding the cylinders, can you pull the sleeves out and replace with new sleeves, or do you have to bore them out? also, to get more power, can you port and polish the heads for more power. do they make, or would have i have to fabricate my own super-charger. i am not positive, but can a diesel engine handle more pressure than a gas engine, because turbos and superchargers put extreme pressure on the engine... about 4-6 lbs more per sq.in. i have done a little research, so i need some polishing up.

~kb

ps. i guess i am a little power hungry.

[Iva Biggen]

SureThe Mercedes Diesel Engines are all about High Cylinder Pressures and they , can be Bored or resleeved and the injection pumps can be tricked out as well as the nozzels and you can do port and polishing on most any engine and improve its performance turbos can be boosted up etc...

[Diesel Giant]

The Mercedes have a sleeve bore and they can be removed and reinstalled by a machine shop. The class 8 tractors have sleeves that are easy to remove with a special puller and air wrench and installed the same way. I did LOTS of them when I worked at Cummins.

Your car uses a turbo not a supercharger. The superchargers on class 8 tractors many moons ago were installed on 2 stroke diesels, not 4 stroke ones. Mostly on Detroit diesel engines. They did not have much torque, but reved pretty high.

You can do lots of performance mods to your car if you have enough money.

[Goowrangler]

i know that my engine i want to swap into is a turbo but i wanted to know if any it would be better to put a supercharger on it instead.

i found out that the turbo runs off of the exhaust and that it lags unless you are running higher rpm's.

so what would be better?

i would prefer the supercharger!

but would the diesel be able to handle the extra 4-6 lb/per sq.in. i know the gassers tend to start to leake or get past the rings

let me know what you think.

~kb

[TheDon]

id intercool if i was going to push it like that.. ask brandon he has an air/water intercooler and is upgrading his fuel pump..

[ConnClark]

If you want to go all out you can add both a turbocharger and a supercharger and get the best of both worlds.

look at the link in the first post of this thread Insanely modded 617

Speed is just a matter of money and time.

[glenn1179]

Turbos are a more efficient power add on for an engine than superchargers. If set up properly the lag isn't as big of a draw back as you may think. I consider it a head start for my oppenent when I drag in my turbo charged Eagle Talon. Just remember when building a car for speed you have 3 options for parts cheap, fast and good. You can only have 2 out of the 3 though.

Good luck and keep us posted.
Glenn

[Diesel Giant]

A supercharger?? I guess you could modify a kenny bell whipple charger, but I think the best bet is to keep the turbo instead.

[Goowrangler]

What if i designed and built my own supercharger... i just need to look at a drawing of an existnig supercharger to build my own.

do ypu think it is possible if you have a tool and die shop?

[rwthomas1]

Why reinvent the wheel? Turbodiesels are the way to go. Just look around and you won't see many supercharged diesels. It takes more power to drive a supercharger due to parasitic losses. Correctly designed turbo systems will always make more horsepower. You want more power? Here's how you do it:
1. Custom pistons for 17 or 18 to 1 compression ratio.
2. Port and polish cylinder head, port match/extrude hone intake/exhaust manifolds or custom manifolds.
3. Custom built injection pump, at least 10% more fuel.
4. Blueprint engine, degree cam, etc.
5. Larger turbo. Holset HX40 or Garret VNT from late model may work.
6. Big intercooler.
7. Gauges and a large exhaust system.
There you go. This would likely get you at least 50% more power and maybe a lot more. How deep are you pockets or is this just bench racing?

RT

[Hatterasguy]

The Finns are pretty good at this. You can crank more boost in but you need to increase fuel to make power. They do mod the IP's with larger pistons to move more fuel. I'd budget about $3k to have this done, I think their is only one maybe two shops in the world that can do it. Shipping to Europe would be pricey.

I think on their latest 606 monster they did a lot of custom bottom end work.

I'd love to build a super diesel when time and finances allow. It seems like getting big power(400hp-500hp) and making it reliable would cost a few bucks. I's budget $15k-$20k for such a project. Plus a second engine is a must becuase you may melt the pistons on the first during "testing" . And don't forget you will probably have to rebuild the trans at least once.

Originally Posted by Hatterasguy

And don't forget you will probably have to rebuild the trans at least once.

I think they use a modified S600 tranny to handle the power. Not a cheap option.

[PanzerSD]

All I want is my Tranny to shift right and I'll be happy!!!

[Hatterasguy]

So figure $3k for the trans then.

Finding an AMG diff would be a good idea as well. If you put a lot of power under the hood it will find ALL the weak points in the driveline.

For a 500hp 606 I would have a light weight strong driveshaft made and hook that up to an AMG rear. I wonder how much power the flex discs can handle? The euro 560's put 300hp through them so they can probably handle 400-500 if you watch them?

[Goowrangler]

does anyone use propane or NOS on their rides?

would it be a dumb idea without getting new parts so it wouldn't fry the pistons?

i think it would be the coolest if someone has done this.

by the way i don't know if you guys realize this or not but i am going to try to upgrade the OM617. if anyone can think of a six cylinder or a 4.0L-4.5L 80- 89 mercedes engine, let me know the numbers or car model. haven't been able to locate an actual engine.

ya'll been alot of help, thankyou

~kb