hx35 outlet flange with wastegate hole, any benefit?

[Hurley]

I've currently got a hx35/ht3b kit, who's hot-pipe has a standard flange to clamp to the outlet of the hx35. If I were to build hot-pipe with the below pictured flange accordingly, would/could I expect any notable and worthy performance increase?

note:
1.) wastegate has been drilled on the 35, and a 1/2" open spacer will be used when the kit is mounted. I also currently have no backing plate on the 35, so it's either a purchase or fab item.
2.) I have considered making a similar flange with no division between the holes, and cutting/fabbing an open trough for the hotpipe.... just dont know what the turbulence and reversion would look like - but I do have some simple CFD software that can aid in design.

 

[Hurley]

Anyone? (it's the flange with hole from SourceAuto)

http://www.sourceautomotive.biz/index.php?page=shop.product_details&flypage=flypage-ask.tpl&product_id=60&category_id=23&option=com_virtuemart&Itemid=1

 

[Jim Fulmer]

That plate design started in 03' from PDR (when it was Piers's place) long before anyone else.

http://www.competitiondiesel.com/forums/showthread.php?t=49714

Note the copy over in my setup.

Jim

 

[Hurley]

Nice, I think I'm going to emulate that design.

 

[CaptainChrysler]

I made a plate that had the lower portion open, and build a collector. Also drilled the passage out to 15/16" and ported it quite a bit. Have not got to do a lot of testing, but so far DP is actually slightly less than total boost. About 58psi DP with 60psi boost.

 

[Hurley]

^That's an interesting fab job, mine will be flipped (to the inside like Jim's).


If I were to use a tube to separate the flow, instead of a collector, would it be wise to add some type of block off between the main flow path and the gated air? (like a tab, with gaps for expansion, that would force the gated air to flow through the separate tube and on down) Seems like that would cut down on turbulence and any detrimental flow characteristics

 

[98andahalf]

isn't that pipe on there backwards??? doesnt it need to be flipped around in order for the turbo to face forward on the manifold?

 

[CaptainChrysler]

The primary is over to the side, above the wheel.

 

[Clunk]

I thought about bolting a divider between the turbo outlet and wastegate exit then bore & tap the exhaust plate 1" dia. and run a separate waste gated pipe to the outside of the truck.