Big power 200tdi build

MTQ used to use an out of the box TD04 MHI turbo.

JC may have some numbers, he's fitted a few, I never found out which spec it was but it worked well.

You could then work out what the equivalent GT25 they are now recommending.

BTW, I'd be concerned if the bottom end can handle the neddies too, I've stuffed a set of big ends from running enough fuel to exceed 720* on a long hard climb with a full 3" exhaust system.
The engine was running premium synthetic diesel oil at all times, so I'm lucky I only destroyed shells and not journals.
With the bearing failure mode/s I experienced I'm still not sure whether it's an oil cooling issue, big end distortion under load or just crap OE bearings as I seemed to cover every base with the way they failed.
BTW, the 300Tdi has a better oil pump on paper than a 200tdi too.

I personally think the oil cooling is marginal at best and the top end can't handle too much boost, around 18psi seems to be the absolute safe maximum before head O ringing is necessary.

Quote:

---

Originally Posted by uninformed

sorry mate, im a bit confused?

did you cover LPG or Alcohol or both?

there seems to be plenty of companies world wide doing LPG, from the transport industry to racing diesels.

Adding alcohol into the diesel(fuel tank) was something i heard from Dr Karl K

Serg

---

The side effects are the same for all fuels added through the intake. If you want to add fuel to a diesel through the intake, it's got to be a fuel that's will not compression ignite when squeezed at 18:1 and heated to 500C.
LPG, alcohol, petrol, diesel can all ignite at the wrong time if fed into the intake on a diesel.

MAN specify their large stationary diesels (house sized diesels) can be run on gas if the gas doesn't liquify when compressed to 250 bar. LPG doesn't pass this test:
It's listed on page 9 of this booklet:
MAN Diesel - Stationary Engine Programme 2010

Very few companies outside Australia put lpg into engines. It's only the low price of LPG in Aus that makes it economic. The performance world gave up on LPG in diesels a long time ago. To quote one guy "too many broken parts, not enough power".

Quote:

---

Originally Posted by Dougal

The side effects are the same for all fuels added through the intake. If you want to add fuel to a diesel through the intake, it's got to be a fuel that's will not compression ignite when squeezed at 18:1 and heated to 500C.
LPG, alcohol, petrol, diesel can all ignite at the wrong time if fed into the intake on a diesel.

MAN specify their large stationary diesels (house sized diesels) can be run on gas if the gas doesn't liquify when compressed to 250 bar. LPG doesn't pass this test:
It's listed on page 9 of this booklet:
MAN Diesel - Stationary Engine Programme 2010

Very few companies outside Australia put lpg into engines. It's only the low price of LPG in Aus that makes it economic. The performance world gave up on LPG in diesels a long time ago. To quote one guy "too many broken parts, not enough power".

---

https://www.aulro.com/afvb/images/im...10/08/1289.jpg

:angel:

I had gas put on my 300tdi and made a huge difference.
So have several friends and more are looking at doing it.

Its an old truck anyhow and my research is inconclusive as far as I can tell, there are more benefits than drawbacks.

I like it, recommend it and love the result.

the 200 TDI is a better choice than the 300 if you wish to push things. i say this mainly because of the head issues of the 300, but then you can upgrade to a 2.8 brazilin head which is much better but not 100% fail proof. 200s have next to zero head issues.

Take not of the bottom end comments. oil temp IS an ISSUE, so i would defiantly be spending the money there along with Good oil. Take note of the KG per cm2 of the oils.

The 200 exorst manifold is much better than the 300 so in the first instance i would leave it alone.
Take note of Douglas turbo comments. but not of his LPG comments. getting new information into his head requires the use of a hammer and as mentioned there is another LPG thread, so no need to pollute this thread with that.

Big exorst is a no brainer, 3" is good

choice of turbo is wide and there will be compromises in what ever way you decide to Go. VNT is good but expensive and great if you want to pick up another 20% bottom end, other wise simpler an cheaper may be better. And intercooler, that goes with out saying.

tweaking the pump is a no brainer, i do it with a Gmeter on my N97 or if you have an HTC or iphone.

16 psi is ok for basically a STD donk and that will move you a lot better than most 300s and surprise a lot of td5s.

The first week point you will come across is the LT77 if that’s what you have.


Moving on i would then look at head bolts, and tin gasket. tiding up the inlet ports a bit ( reshape).

there’s not much more you can do, until you hit the limits of fueling and then you are starting to talk unreal money

Oh an parts are a non issue, its just that aussie only got the 200 for a couple of years, they are still prolific in the UK so parts are widely available, Google and a visa card is all you need. There is also a wealth of information on the 200 on some UK forums. Basically for the same reasons as I said before

Quote:

---

Originally Posted by clean32

the 200 TDI is a better choice than the 300 if you wish to push things. i say this mainly because of the head issues of the 300, but then you can upgrade to a 2.8 brazilin head which is much better but not 100% fail proof. 200s have next to zero head issues.

[snip]

The 200 exorst manifold is much better than the 300 so in the first instance i would leave it alone.
[snip]

[snip]

---

I believe (but could be wrong) all the new 300Tdi heads are the MWM 2.8 heads and have been for a number of years.

Agree on the exhaust manifold, this is why Bruce Davis used it as the basis for his 300Tdi turbo upgrade, with a BD cast dump to match the 300Tdi exhaust.

Quote:

---

Originally Posted by rick130

I believe (but could be wrong) all the new 300Tdi heads are the MWM 2.8 heads and have been for a number of years.

Agree on the exhaust manifold, this is why Bruce Davis used it as the basis for his 300Tdi turbo upgrade, with a BD cast dump to match the 300Tdi exhaust.

---

quite correct made in Brazill

Brazilian???? Do they come with a shaved block or head!??????

Well someone had to say it!!!!!

Quote:

---

Originally Posted by LOVEMYRANGIE

Brazilian???? Do they come with a shaved block or head!??????

Well someone had to say it!!!!!

---

Naa, just a waxed and trimmed clutch :angel:

Now that we are off topic

Yes the first bazillion head just didn’t have the staying power
The second bazillion head hangs in there a lot longer
But neither are as reliable or has the staying power of the pommy head ( tdi200)