Ive been hearin a lot of good things about these twin setups, especially for towin. Just tryin to find out some oponions on how well they work, or hear from someone who has had some experience with these setups. also does it really make that big of a difference if you twin the s400 with a s300 or does the stocker work just as well.

 

I have the S-400 under the hx35/12.
Love it.
Got it from Source.
I had tried a HX-40 From PDR, a phat shaft 62.
This compound set up is best at quick spool and heat control.

I really feel the phat shaft was no better than the PDRHX-40.

 

Thanks for the info, did you end up buildin your own pipes for your twin setup or did ya buy the plumbin, and what were the costs on that.

 

I built my own a few years back. Ran a HX35-HT3B then upgraded to a HX35-S475 and now my favorite HTB2-S475. Ran great and towed awesome with the egts always in control. Its a nice setup to start with and tow with that can be upgraded in the long run. You'll like it over a larger single cause it spools instantly

 

I bought it. I didn't have time to build it, or the talent to do it this nice!!!

 

I would run an external gate for the HX35/S475 twin combo. If you don't you'll limit top end power and have higher egt's. I would run at least a 40-50mm sized external gate.

 

loved it

awesome towing set up on my old 12V.. 35/14 housing cross drilled, over a regular S400, 26 cm housing. spooled really quick, towed well, and cleaned up 150 horse injectors easily.... with stock DVs in a 215 pump

 

i have a 93 dodge, witha hx40 and planning to put my h1con fro a twin setup.do i have the larger hx40/16 on the manifold feeding the smaller h1c/12. the hx40 housing has the waste gate. do i get the boost from the hx40 or the h1c to activate the waste gate.

 

Those two chargers are too close in size to be of any real advantage. You want the bottom charger to flow double or more of what the top charger does. HX40 probably flows 10-15% more than the H1C you're running.