I'm starting to collect parts for my NA-t upgrade. I'm wondering if there is normally enough space behind the turbo to fit a 1.5" (thick) Marmon flange to 3" V-Band adapter back there.
I'm looking at this:
https://www.ebay.com/itm/3-to-4-Steel-Exhaust-V-band-ADAPTER-vband-V-Band-3-0-adaptor-Flange-CNC-3in-4/252292993121?hash=item3abdd59061:g:3DoAAOSwJcZWhChc&vxp=mtr

Seems to make it much easier to use a BW turbo.
So far, I've done the following:
GTE ECU mod
500cc Injectors

I've bought the following:
46mm Tial WG
SS v-band flange Dump Tube
Latest SS CXRacing 11ga Manifold

PS: Comments on my preliminary turbo selection (S363/68 T4 .88) are welcome also. I'm looking for quick spool and ~400-440hp. 95% Street use.
Thanks in advance

 

You may run into issues with using that adapter. The BW turbo hot sides are LARGE. Why not just use a Marmon to 3" pipe and just cut off the v band? Or, cut off the Marmon and weld a 3" v band in place?

I have a S366 with a Marmon->4" adapter welded to a 4" downpipe and it's a tight fit.

 

OK, second question. Would anyone here be interested in welding a marmon flange onto a 3" downpipe for me?
I only have a gas-less MIG welder which I don't think will work for this application.

 

It will definitely work.

It will NOT be pretty but this isn't a roll cage build so it'll be strong enough.

 

If you have a few porous holes left after the weld, JB weld them closed

Yes I know, terrible advice but at least you can proudly say you did it on your own.

 

True. I just want it to be right. I’ll have to find some scrap to test on

 

you can hit up Dan@ FSM in Delaware he can do that for you. or maybe hit up Freed in MD