Looking into making a twin set up using my hx35/40 with a 14cm housing. My mods are tst powermax 3, smarty and 100 horse injectors for fueling. When i put on the tst i hit 55lbs of boost pretty quick at about 2000-2300rpm. so i backed my waste gate off untill it was almost off the threads and it still can creep past 40lbs so i have just decided i would like to go with twins because there is alot of fuel trying to be passed through the hx35/40, and lots of smoke with haze all the way to 80mph. the truck is my daily driver and it rarely ever sees towing, but it does get drove like its in it to win it quit a bit. What would be a few good ideas for a turbo to go along with my mods? And with the hx35/40 would i need to port my waste gate or do anything else to it with the set up?

 

You could use an s475 or ht3b as a bottom turbo in a COMPOUND setup with your hx35. Or you could look into something like an s300 single.

 

So how many lbs of boost could I see with the set up and what would i need to do to my hx35/40 just port out the waste gate?

 

are those the mods id have to make to the hx35/40? that way i can keep it at 35-40lbs?

 

S471 would work great with your HX35

 

Just have to port my hx?