Thread: Lots of turbo bits

There was some talk about swapping internals garrett components onto the IHI tubine housing I have this Garrett turbo so wondered if this would be useful.[IMG][/IMG]
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The other setup I started playing with was a GT2256V Garrett I got so far with the preparation and ended up feeling that really I just needed something simple for my needs. One of my aims is reducing the resonance of the exhaust using a turbo, with only moderate power gains and keeping the setup simple. Which keeps me considering something that is close to stock so that I can use all the standard isuzu components where possible. Have read that this setup will require dawes valves or some metering device which I thought was just adding another layer of complexity. here is an image of the setup I made.[/URL][/IMG]
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The other tubo I have is off a 200 TDI which is too small I know.
So hope someone can help with advice I also have a 3" exhaust system to use to fabricate a new system, but not sure on that as it may just raise the decibles if I put it on.

The first turbo you have is the IHI RHB6. 60mm compressor and turbine It was a good turbo in the mid 80's but it's a dead end for parts now.

The garrett you have, what is the exhaust A/R? That single port manifold is T2/T25 pattern and will fit most of my next suggestions.

The GT2256V I think is too small on the turbine side. I'm selling mine also.

Look for a TD04HL-19T turbo. It'll bolt to that single port manifold. It's both the most economical choice and the most efficient T2/T25 pattern turbo. It will spool up as early as you ever need and give far better top end than that VNT.

Thank you Dougal I will cheak out the A/R on the Garrett tomorrow and let you you know. Yes the RHB6 does seem a dead end parts wise I thought I might be able to swap the Garrett compressor housing onto it, or possibly a RHC6 cartrage or even one from the RHF series turbos. I did read the thread on the forum about the Garrett isuzu used on 4bd2T and it was mentioned that could posssibly fit onto the RBH6 exhaust housing. I am not going to intercool it just try and gain a mild increases in power while quieting the engine down a tad. It seems the late RHB6 turbos were a combined project with Borg Warner, so not sure if there are possible crossovers with parts there. I do understand that these turbos do have an increased back pressure issues when compaired to other turbos.

I wouldn't bother trying to resurrect the IHI or reuse any of the parts. What you have there is scrap.

The IHI split port manifold can fit a T2/T25 turbine housing if you slot the holes in the turbine housing. But since you have the single port T2/T25 industrial manifold this would be a waste of time.

The garrett 721843 you have is a GT2052 turbo. Brazilian ford ranger.

I had a look for the A/R on the Garrett it is 48 so to small for the isuzu from what I understand 60-63 seems to be the go. So you suggest I use the single port industrial manifold? Forget the turbos I have and settle on a TDO4HL-19T. :0

Originally Posted by garryseries3

I had a look for the A/R on the Garrett it is 48 so to small for the isuzu from what I understand 60-63 seems to be the go. So you suggest I use the single port industrial manifold? Forget the turbos I have and settle on a TDO4HL-19T. :0

The flow capacity of the turbine is a combination of the housing size (A/R) and wheel size. 0.48 on a larger turbine isn't too small. But that turbo (GT2052) is too small.

I run a T25 with a 0.49 housing and the TD04HL-19T with a 6cm housing is also about 0.50 A/R.

Go for the TD04HL-19T.