so you want to increase your bottom end torque on your 3B?

[tlc42]

Hi everybody,
My first post (as i remember).
Very interesting thread. You are talking about MHI TD04L turbo as a good fit for the 3B.

I am just hooking up a MHI TD04HL-13T on my BJ42: is anyone of you knows the difference between TD04L and TD04HL?
I looked on the web but don't find any answer.

Thanks

Here are pics of the TD04HL





And apologies for my poor english. Just let me know if i am not clear

 

[tmarx]

If you can tell me what it is off of and what year it will help figure out the compressor. On the exhaust housing there will be a number in the casting that says .50 or .60 or something like that. That is the CM reference. Im sorry, but I didn't have the time to search your build thread to find that info.

That is the problem Gerg. I scored it from a Co that removed it from one of their fleet vehicles.It was an aftermarket conversion done to a 5L Hilux by a now extinct Co here in ZA that were fond of using DTS/MTQ turbo kits from aussie for their conversions. I cannot remember seeing any other numbers in the casting but IIRC from the rebuild kit it was a TD04H 15G

 

[gerg]

52.07mm turbine for the HL vs 46.8 TD04L. Trim is pretty much the same for both. Without knowing the exhaust housing I would guess it was a 6cm rather than the 7cm which is less common on stock vehicles. And given it is a 3.0L motor it was intended for, smaller makes more sense. The 15G compressor maps fine for the 3B and will flow air up to redline if you like that sort of thing. I would say bolt it up. Hard to say where it will spool. I estimated 6lbs at 1750 rpm, but it is just a guess.

Here is a map. A/F 19 Peak VE of 90. Points are 1000, 1500, 1750, 2000, 2100, 2200, 2850, 3500

 

[gerg]

As for the Td04hl-13t my lists don't show it, but they are older lists. Most of the 13 series compressors (g and c) were mated to 6cm housings. I would suspect it was a 6cm. Both of these turbos will work well for everyday use, but I suspect boost would not hit hard in the lower rpms, but by 2000rpm they would give you into the low teens. A boost controller will help low end boost build faster. Keep in mind this is all guesswork.
g

 

[tmarx]

Thanks for the feedback. The turbo has been on my truck for a few months already and I like it a lot. Maybe it is time to find and fit a boost guage ..

 

[tlc42]

Thank you Gerg.

FYI the TD04HL-13T is already bolted on my BJ42 and i am just begining the tests.
It gives me 0.7 Bar MAX. (+/-10psi) at middle range of RPM but the waste gate is kept closed by a steel wire wich is probably not the best method to avoid gaz leaks.
Anyway, this is certainaly not the perfect choice for the 3B but it was an opportunnity for me to get this turbo. And it will never be too late to change if a better choice comes to me.

 

[gerg]

That is good to hear guys. It would still be helpful if you could post up the exhaust housing A/R. Just post up all the numbers stamped on the housing and we will figure it out.

 

[tlc42]

That is good to hear guys. It would still be helpful if you could post up the exhaust housing A/R. Just post up all the numbers stamped on the housing and we will figure it out.

Ok Gerg. I am not at home for the next days, but as soon as I can I shall look at that and let the communality knows. But as far as I can remember, there is not a lot of indication stamped on the casting.

 

[tlc42]

hi again,

from some research on the web, i found some numbers for the TD04HL: assuming it is a 6cm2 the turbine A/R is 0.41 and the trim 0.77.

If it helps ?

 

[Fatbob]

Crushers or RADD...

I was looking through threads on putting a 2LT turbo on a 3B and saw this one:

https://forum.ih8mud.com/diesel-tec...782-can-2l-t-turbo-wreck-b-series-engine.html

Is a 2LTE different from a 2LT turbo?

Thanks.

 

[crushers]

pass (as i don't have the answer)

 

[rustybucket]

what about condition of engine before putting on turbo?

I have dont lots of automotive work just never added a turbo to a oem car. Is there anything I should know about the health of the 3b that can take the extra pressure from a turbo? is there a minimum comprssion limit or mabey blowby that a old 3b engine has to be not considered for a turbo kit?

minimum oil pressure at idle and running to be considered for a turbo kit?

 

[Dougal]

Oil pressure is good, but not as important as compression. If your compression is down the extra boost from a turbo can be enough to cause a big blowby problem.

 

[crushers]

expand on this statement ...

Oil pressure is good, but not as important as compression. If your compression is down the extra boost from a turbo can be enough to cause a big blowby problem.

 

[rustybucket]

what would be the minimum compression?

I was wondering what would be the minimum compression?

Also, love that picture of the exhaust manifold the bj70 3b. Very shiny weld job. who makes it? Its a few threads up

My bj60 is a real dog on hills but that is probably not to surprising to alot of people. I do need to change the air filter was thinking K&N filter. Had one in a car in the 1980s was satisfied with it. Some one said a different exaust manifold will over oem will help to scavenge the exhaust gasses?

 

[crushers]

book knowledge or actual?
rebuild is 280, if i remember correctly but anything below 370 and i wouldn't bother turboing till the engine is rebuilt.
as for the blowby increasing due to low compression, Dougal, care to expand? you have had enough time to do the research for your answer.

 

[Dougal]

as for the blowby increasing due to low compression, Dougal, care to expand? you have had enough time to do the research for your answer.

There's nothing that needs expanded. Turbos increase cylinder pressure which increases blowby. I thought this was obvious enough to not need explained further.

 

[haryv]

if crank platigages correctly

Was wondering if the con and mains were to fall within the req limits of spacing, could I get away with RERE the pistons,rings and mabey linners. I would check specs on everything.

BTW, what does a rebuilt 3b long block cost these days and can what would the core reimbersment be these days?

 

[crushers]

$1500 per hole is the cost these days for a shop to rebuild a diesel.

actually, compression can be due to valves or rings and has nothing to do with oil rings. the compression for a turbo to affect blowby would have to be very low and due to the rings.

i thought that was pretty obvious.

 

[Dougal]

actually, compression can be due to valves or rings and has nothing to do with oil rings.

No-one has said anything about oil-rings.

the compression for a turbo to affect blowby would have to be very low and due to the rings.

Adding boost increases blowby. This is for all engines regardless of how good their compression is. If your compression is down then a turbo can push blowby to the point where the crank-case pressurises and other problems develop.

I didn't expect to have to explain this in detail.