Hello. L200 owner - planning a kit. Lots to learn.

[YodaL200]

Hi everyone. I have a 2002 Mitsubishi L200 2.5TD. Around 170Bhp is not too hard to achieve with these trucks, and people commonly do. I'm looking to go a tad further though. Not after monster truck / super car performance. Just hopefully around 200bhp. Not being a performance engine the cooling provided by a water injection system cannot be ignored.

I understand the principles and I have a lot of studying to do. I need to work out if I want to inject a water/meth mix or just water for starters. I like the idea of not having to buy methanol all the time. There is also quite a lot of scope for engine remapping with these trucks provided you can keep things cool enough.

Looking forward to getting involved and hurting my brain in the process:D

[Richard L]

Can I assume your car is a diesel? (...TD).

Can you tell me how the fuel is delivered.

[YodaL200]

Hi Richard. Yes a diesel. Multi point fuel injection.

[Richard L]

Great, makes my life a lot easier.

Question: can the turbo flow enough air for 200bhp? I would like to have a look at the compressor map if it is available.

[YodaL200]

No idea. I have no issue putting a new turbo on though. I don't have the compressor map available but I can ask on the club forum. If memory serves it max's out at 30psi.

[Richard L]

Assuming is can sustain 30psi at a reasonable efficiency, 200bhp is a achievable goal.

As diesel power is directly related to quantity of fuel injected. You can start as follows:
1. Increase fuel flow (just as the black smoke starts)
2. Increase boost until no more black smoke.
3. Repeat 1 amd 2.
4. At all time keeping the EGT in the region of 850C

Fuel can be increase by:
5. Upping the rail pressure (budget tuning device)
6. Increase the "on time" of fuel injection duration. (More advanced tuning device)

There are plenty of scope on 6 if the enigne does not rev too high.

[YodaL200]

Thanks Richard. What sort of kit are we talking to achieve this? Could you direct me to to a link of suitable aquamist kit?

[YodaL200]

Also could you point me in the direction of the tuning devices for steps 5 and 6? Assuming you're not talking about ECU remapping? We can get 145 safely with a ECU remap. Guys then run s/s exhaust, bigger IC, induction kit and blanked EGR.

In my case I have blanked EGR, induction kit, port matched head and uprated flow matched injectors. My rough plan was to do s/s exhaust and front mount IC. Fit water injection with temp sensors for EGT's and wind up boost (possibly new turbo) and a more aggressive ECU remap to bring enough fuel in. Thoughts on this? These "tuning devices"? Is this a different route?

Also trying to work out if I can run water without meth or if I need the meth?

[Richard L]

Thanks Richard. What sort of kit are we talking to achieve this? Could you direct me to to a link of suitable aquamist kit?

We don't make diesel tuner boxes. I suggest research it first before adding water injection. You mentioned something about ECU remapping. If you can do remapping, then adding water injection is the next stage.

[YodaL200]

Yep there's lots of scope for ECU remaps. Good specialist tuners will stop at 145 so as to keep the engine safe. But I've been told by several of them that much more power is available if the engine can be kept cool enough.

[YodaL200]

We don't make diesel tuner boxes. I suggest research it first before adding water injection. You mentioned something about ECU remapping. If you can do remapping, then adding water injection is the next stage.

Sorry I meant a suitable water injection kit for my truck....

[Richard L]

The HFS-4 is the only system that will work your car.

[Dust]

I don't think the 4d56 has an ECU. It's a knob turner from what I have read about them.

[YodaL200]

There are slightly different generations and different versions of the 4D56. Mine does have an ECU and an electronically controlled pump. Look at the L200 engine details versus the Pajero and you'll see what I mean. Besides that would mean the chaps who have had ECU remaps are getting extra power from fairy dust. :wink:

[Dust]

No worries, I know about the two generations of paj having the 4d56, i read that it was a dog (no offense meant) and started looking for a 4m40 in a SWB and 4m41 (I can dream) for when I strike it rich.

[YodaL200]

Yep there was a chap on the Paj forum who did crazy tuning to his 4D56. Got it up to around 200BHP with serious modification. EGT's actually dropped because he did such a good job of the cooling. But he hit a wall because he had no ECU and a mechanical pump so he had more boost then fuel despite tweaking the pump for all it was worth.

I think we can go to his level without being quite so extreme on the tuning front. I believe water injection is the key. Essentially a remap can get you to around 170bhp with the breathing system getting you the rest of the way or at least close. As long as it stays in it's rev range and doesn't over heat. This guy fully balanced the internals so it would rev higher -?????. I'm thinking we just keep it cool! From what I've read about water injection it is the answer.

They are good engines if you look after them. Just rebuilt the top end on mine. Easy to work on and cheap for parts. I've driven a Paj without the ECU and electronic pump and it IS a dog! The L200 version is light years ahead in performance! The paj had 80bhp we have 115 standard. Main issue we have seen is the ally head isn't that heat tolerant. But what car doesn't have ally heads these days! And of the two 4D56's I can name which have had serious tuning, the head has never been an issue. Other things have failed but not the head.

4M40 engine is better engine by definition of it being a 2.8. Some guys have fitted one. But the engine we all think the L200 SHOULD have come with is the 3.2Did. Which the current shape now has but only as an import.

I'm quite confident from what I've seen first hand that we can make a success of this for not too bad a monetary figure.

Note worthy that the 3rd gen 4D56 has a common rail and 16 valve. So Mitsi already pushed it up to 165bhp on themselves. And THAT engine when remapped will get damn close to 200 without additional cooling. So what we're trying to do here isn't that extreme when you view it like that. a vast difference from the first 80bhp gen 1's in the Pajero! Clearly a more capable engine than people re given to think in my opinion.

What vehicle do you drive then?

[Dust]

I have wanted a diesel for forever, but not being made anymore, they pull a premium. When I bought my current car, the only thing available was a Isuzu Mu. My insurance company wanted an arm and leg to insure it so I bought a Daihatsu Move/ Perodua Kenari L902s, with the JB-DET engine from a Daihatsu Copen.