Anyone seen a compound turbo setup on a D24T?? - Page 2

Slobodan · #11 02-14-2010, 05:26 PM

I think I am going to make something. Either Twin stock turbo's Or compound Stock with IHI/BorgWarner BIG turbo from a 6.5 GM Diesel (which I have these turbos allready. Maybe I'll build both setups and compare them.

Jason · #12 02-14-2010, 07:46 PM

Twin stock turbos would probably work alright... I don't know if I would use the stocker with a bigger turbo like whats off a 6.5 though. I would be a little worried about drive pressure when they are spooled up. The exhaust side of the stocker is pretty small

Jason

Jason · #13 03-01-2010, 09:23 AM

I don't think high drive pressure is going to be a problem with the size exhuast housing I'm running. A HX35 wont spool well with the huge exhaust housing. I had thought about a HE351 or the VGT option, but the T3T/4 is working well and pushing a couple pounds of boost into it will help it make a good 35psi. The T3/T4 I have is only rated to push 20lbs of boost efficiently. I'm already at that boost level. Yes the HE351 would do everything I want, but the compound turbo setup will look and sound cool. Its more for the wow factor. This is just a fun time car for me. I enjoy messing with the local diesel truck guys...

Jason

EvoStevo · #14 03-02-2010, 05:05 PM

Quote:

Originally Posted by ForcedInduction

Bad match, a T3/T4 is much too large and will produce high drive pressures. You need a normal T3 as the HP turbo.

Right, it has its own. In addition to multiplying pressure ratios you're increasing intake temperatures. That means you'll need a beefier intercooler to reject that much heat.

If you've got a 2.0 pressure ratio for each turbo (30psi manifold), you'll have a 518*f discharge temperature instead of 400*f with a single turbo.

An HX35, HY35 or HE341 alone will provide everything you need; quick spooling, 35psi capability and cool discharge air.

I just found your build thread on superturbodiesel.com. Man, what an awesome read. It's too bad about what happened to your turbo. Hope you do decide to stick with the VGT. I really liked your actuation method. Anyway, just wanted to be the first to welcome you to the forums!

To everyone else, sorry for this off-topic post!