I figured I'd get a few more hits with a new thread instead of putting this in the low hp compounds thread, so here goes.

hx35/hx50
12cm on the 35, 22cm on the 50.
12cm housing has been ported extensively, and the internal gate has been modified to roughly ~30mm.
3" sch. 40 tight radius 90* for the hotpipe, 3" 16 gauge mild steel for the cold pipe.

I was adamant on keeping the heat exchanger in the factory position. To all those who said it had to be moved for twins, well.....try something first before you dimiss it as impossible.

Alrighty then how bout some pics?....







The paint is high heat copper, the hot pipe is getting wrapped with a titanium header wrap that I've used before. I am still deciding whether to use the open filter and hard pipe it, use the expandable corrugated intake piping in the last picture, or use the factory airbox and pipe it with either.

 

Oops...to many pics for one post..

 

Never thought of hanging the primary with a slight twist rather than pointing directly forward. That's different but looks nice! What are your "low hp" goals for this setup?

 

I'd like to be in the ~400hp range, or have the capability to be. I dont know how towing ~12k would be with 400hp, but I can always turn it down. I'll be building a water injection setup with a snow controller sometime as well.

 

are you going to support the lower turbo?

how does the downpipe fit with the turbo a little offset?

what were your plans for a oil drain?


looks good so far

 

May build a support off the manifold, not sure.

The downpipe should fit fine, the angle was added just for ease of down pipe fitment, and to clear the exchanger.

Just going to put a drain in the pan, its easy and more effective than a tee so why not.

 

Thank you for posting the pictures of how you are putting it together. It is very educational being able to see the piping outside the engine bay. Seeing what you are doing, now I know I am moving my batteries to under the bed when I run new cables.

Do you have any pictures you can share of the heavily ported 12CM housing? I would like to know what can be done to help them flow better but always get the same 4 results when searching Google.

 

Looks cool. What size compressor wheel does an hx 50 have?

 

I can get some pics this weekend when I'm back in town

The 50 has a 67mm compressor and a 77mm turbine. Similar to bd's towing setup with a larger primary turbine and housing. I like this old holset stuff lol

 

Can't wait to see how well it works with your setup.

 

Ill be sure to have some video and feedback

 

I just noticed this... Is that an exhaust manifold from a '97-'98 12v with EGR??

 

You sir are correct

 

You've got a port to externally 'gate the front 3 cylinders.

 

I was going to plumb the gate from there back into the secondarys turbine housing to more evenly distribute exhaust pulses from the choked front cylinders, thus achieving a much lower pressure differential across the manifold without compromising low lift exhaust mitigation