4m50 turbo upgrade

[boostin]

I am back from alaska, what a wonderful part of north america, but the surprise for me was how awesome the yukon was.


So i got my holset, whoa she is big, pics to come, but i did notice some 4m50 had a factory td06

 

[boostin]

Left is a holset HY35 which is considered the baby cummins 5.9 turbo that everyone upgrades, right is the stock td04-15 spare I had

 

[SkiFreak]

That's a very significant difference in size. Aren't you concerned that this will give you some serious turbo lag?

 

[yabanja]

What are you going to do with the manifold. After reading Alan's build it seems that the manifold is the big restriction in the system. Time for a kinugawa or build your own?

Allan

 

[boostin]

I am not to concerned about spool, they seem to spool decent on 4bt which is a 3.9l.

I am going to wait and see what flange is on the 4m50t2. I fear making my own manifold due to cracking and warping.

It'll be a interesting adventure but not married to this turbo yet.

I did find a 4m50 that runs a td06 do that manifold could be interesting as well

 

[DzlToy]

http://www.burnsstainless.com/technology-turboheaders.aspx

 

[boostin]

You know I am actually concerned about the physical size of the turbo, fitting it and the pipes

 

[DzlToy]

IIRC, the HX35 and HY35 were available on the 5.9 B series Cummins, while the HX40 came on the much larger 8.3L C Series. I am not sure what turbo came on a 4BT from the factory, but I would expect that an HX35 would be a bit laggy on a 3.9L motor that has not been fiddled with (higher RPM, larger injectors to compensate for additional air flow, ECM programming, if required, etc)

I am interested to see what you come up with on this. I helped a mate of mine move houses over the weekend and found out that he has two 12 valve 5.9 blocks, two 47RH transmissions and a 271 transfer case. Hmmmm, that sure would solve the 4M50 power and tuning problems

With the 4M50 being 4.9L, maybe it is close enough to the B Series to work out. Something in the 250 BHP and 450 TQ range would be excellent for these trucks IMO.

 

[boostin]

Yeah I am super intrigued as well. Sadly money is tight, so might be a bit before I can get this on

 

[boostin]

Ok, sad day, gave up on the holset, it dimensionally was too big to fit.

On to building a turbo now, decided its best to stay in the mitsu turbo world.

I am looking at building a td05h-18g 8cm

 

[pugslyyy]

Ok, sad day, gave up on the holset, it dimensionally was too big to fit.

On to building a turbo now, decided its best to stay in the mitsu turbo world.

I am looking at building a td05h-18g 8cm

Sounds like it could be a far less complex solution - simpler is often better!

 

[boostin]

Sounds like it could be a far less complex solution - simpler is often better!

Holset seemed pretty simple, but physically so big.

Still have to make a adapter to the exhaust housing

 

[pugslyyy]

Holset seemed pretty simple, but physically so big.

Still have to make a adapter to the exhaust housing

I might be interested in the attempt, let me know.

 

[pugslyyy]

Holset seemed pretty simple, but physically so big.

Still have to make a adapter to the exhaust housing

I might be interested in the attempt, let me know. Should be a fairly simple adapter.

 

[boostin]

Yes for sure, I will actually be going to a water cutting place tomorrow to get some made, they have a minimum charge do I will prob end up with a few spares