What should I consider using while having Holset Big H1C intercooled for RB25 S1

[exodus5547097]

What should I consider using while having Holset Big H1C intercooled turbine on RB25 S1?

[RustspecS13]

What? are you trying to intercool your exhaust?

~Alex

[exodus5547097]

What? are you trying to intercool your exhaust?

~Alex

Got a big H1C (exact older model of HX35) that came from an intercooled Dodge Ram. Some Dodge Rams that don't have intercooler means that it has been equipped with H1C are small turbo units. 2 types of H1C. I just wanted to know what upgrades or any change to the turbo unit e.i.; change exhaust housing to 12 or 14 cm^2 or change the compressor wheel. That sorta stuff.

[Cjmartz2k]

I'm not trying to be a d!ck (and that's rare), but in all honesty, I'm still not sure what you are asking. Are you wanting to know what supporting mods you need? If that's the case, same as any larger turbo, and use the search function. Maybe you are just wondering what exhaust housing would suit you best? That would depend on what you plan to do with it and your hp goals, but as for me, I'm not real familiar with H1C's, other than the fact they are ballpark a bit smaller than HX35's. By virtue of the fact you have an RB25, I'd lean towards the bigger housing regardless.

[exodus5547097]

I'm not trying to be a d!ck (and that's rare), but in all honesty, I'm still not sure what you are asking. Are you wanting to know what supporting mods you need? If that's the case, same as any larger turbo, and use the search function. Maybe you are just wondering what exhaust housing would suit you best? That would depend on what you plan to do with it and your hp goals, but as for me, I'm not real familiar with H1C's, other than the fact they are ballpark a bit smaller than HX35's. By virtue of the fact you have an RB25, I'd lean towards the bigger housing regardless.

Thanks for your info CJ. Loved that R32. This forum site really needs "Car of The Month." I would vote for you on that.

[Cjmartz2k]

Thanks man, I appreciate the compliment. Did any of the info I mentioned help? If not, can you clarify a little more what you want to know?

[lazyboi444]

I think thats what he question was. Which exhaust housing should he go with for his H1C. I think he got the unit with teh bigger exhaust housing, i'm guessing he wants to know whether he should stick with it or downgrade. I had to read it twice.

[exodus5547097]

I think thats what he question was. Which exhaust housing should he go with for his H1C. I think he got the unit with teh bigger exhaust housing, i'm guessing he wants to know whether he should stick with it or downgrade. I had to read it twice.

that's seems about the right question. I couldn't fully asked it right.

[Chaos the Xile]

what are the specs on the exhaust housing?? like turbine size and a/r?

[exodus5547097]

what are the specs on the exhaust housing?? like turbine size and a/r?

It came off of 93 Dodge Ram Cummins something of W-250 I think. Turbine housing runs in 18 cm^2. I don't really know about the a/r is on this turbo. Max boost between 18-21 psi. What do you think?