adrynalinjunkie

iTrader: (4)

I finally bought a S88 Turbo for my 67' Chevelle 370" LS build.

I am using 2.5" pipe coming straight forward out of the flipped stock GTO manifolds.`I am thinking of getting this T6 DIVIDED flange since the B/W housing is divided also.

*** See Pic of flange below***

My question is could I form (hammer) the left and the right merge pipes into square ends that match the T6 flange pictured below and weld them directly to the divided T6 flange?

So the Left and right exhaust banks would not actually merge until they entered the turbine housing.

I realize I would have to run dual gates but I was thinking of doing this already. I was thinking of running a 40mm JGS waste gate on each side right at the first sweep in the 2.5" pipe that way the exhaust would fire straight into the waste gate.

adrynalinjunkie

iTrader: (4)

Here is a pic of dual waste gates with the exhaust banks firing straight into them.
Looks like this would work good. to regulate boost down low.

So.jerZ-28

iTrader: (20)

I would use a Un-divided flange and knife-edge the exhaust housing on the turbo

chuntington101

why not fit a quickspool vavle?,.....

JAX04

iTrader: (17)

Why??

nxfirebird

iTrader: (1)

no you don't, this is how i do all my single builds.

So.jerZ-28

iTrader: (20)

not having the divided part in the t4/t6 flange would just be one less piece of restriction.

JAX04

iTrader: (17)

Or maybe just use it? Dont forget the little hole at the end of that turbine housing all the gasses have to go through...

RealQuick

iTrader: (14)

beautiful work!

SATAN

iTrader: (2)

Going along that same train of thought. Wouldn't you rather use the divided flange and knife edge it, since is is only $20 rather than knife edging your $200 turbine housing. You would get the same results either way.

That is how I did mine. I knife edged my turbine housing once before and regretted it when I tried to sell the turbo later.

adrynalinjunkie

iTrader: (4)

Thanks for posting. Friggin Cool fab work !!!

So you use a divided flange and weld each pipe in the separate flange holes?

Have you noticed a difference in spool?

I swear this turbo fab stuff is like ****. lol It's all just a little different but always interesting

VUSS383

Could I see some close ups of those 4-1 merges please ...... They look pure **** !

nxfirebird

iTrader: (1)

no this is on an open flange, it was just my idea to have the most direct path of exhaust gases. i built a few systems with this design, i figured this idea would give the OP other options than running 2 gates.

i built this in 06, since then my house got broke in to and they swiped my computer that had all my pics. i'll look around and see if my memory sticks have any more of that stuff on them.

adrynalinjunkie

iTrader: (4)

Well that solves it that is how I am going to do one 60 mm gate on my divided set up.

Thanks again for the pic.

Fbodyjunkie06

iTrader: (10)

Jason told me about your build, can't wait to see it going!

n97240

iTrader: (2)

A pic on mine in the making. 2.5" crossover, 2" feed from each side feeding a 46mm gate. I have it all welded up now just need to take some more pics. Its actually upside down in this pic, gate faces straight down.

1999Firehawkls7

iTrader: (3)

BookMarked

coltboostin

Correct me if I am wrong, but dont GTO manifolds have 2.0 inch outlets?

You want fast spooling, I would stick with 2 or 2.25 up pipes, and keep it divided the whole way though.