BlackT5

Need to buy an exhaust flange, but is this outlet 2 3/8" or 2.5"?

I don't have the turbo with me

Puscifer

This is the flange you need.

BlackT5

Thanks

Now is it just me or does this not make sense.

"The inner diameter of the circle is 2.5" and has a step to sink a 2.5" OD tube flush for welding."

Puscifer

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BlackT5 &raquo;</TD></TR><TR><TD CLASS="quote">Thanks

Now is it just me or does this not make sense.

"The inner diameter of the circle is 2.5" and has a step to sink a 2.5" OD tube flush for welding."

</TD></TR></TABLE>

I am no Engineer or Fabricator. But I am gonna take a stab at answering your question.



Green Box - As you see the flange and the piping for your downpipe labeled.

Red Box - Here you see the Down pipe resting on the "step" of the flange. The grey junk around the DP pipe is your bead of weld.

Correct me if I'm wrong anyone.

BlackT5

I understand how the pipe is supposed to sit.

What I don't get is the fact that it says the inside diameter of the hole is 2.5", but then it says the step is made for 2.5" OD tubing.

How can the ID of the hole be 2.5" and the OD diameter of the step be 2.5"? There must be a typo on the site. It would have to be 2.5" ID tube.


Modified by BlackT5 at 12:49 PM 1/11/2007

BlackT5

I sent a message to ATP. I'll report back once i get a reply.

JDMCRX

iTrader: (2)

Did not know the GT35 came 5 bolt ???

BlackT5

"the ID of the flange is same as ID on 2.5" tube that is .065" thick."

Mykizism

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDMCRX &raquo;</TD></TR><TR><TD CLASS="quote">Did not know the GT35 came 5 bolt ???</TD></TR></TABLE>

its a precision housing.. Garret ones are 4 bolt

AutoLab

why are places still selling the outdated and inferior 5 bolt gateport housings?

Mykizism

no clue

BlueSi2k

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BlackT5 &raquo;</TD></TR><TR><TD CLASS="quote">I understand how the pipe is supposed to sit.

What I don't get is the fact that it says the inside diameter of the hole is 2.5", but then it says the step is made for 2.5" OD tubing.

How can the ID of the hole be 2.5" and the OD diameter of the step be 2.5"? There must be a typo on the site. It would have to be 2.5" ID tube.


Modified by BlackT5 at 12:49 PM 1/11/2007</TD></TR></TABLE>

The ID of the hole without the step is 2.5". Inside the step piece it would be slightly less. 2.5" OD tubing will fit perfectly inside the flange but will stop where the step begins. The website is correct.

BlackT5

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BlueSi2k &raquo;</TD></TR><TR><TD CLASS="quote">

The ID of the hole without the step is 2.5". Inside the step piece it would be slightly less. 2.5" OD tubing will fit perfectly inside the flange but will stop where the step begins. The website is correct.</TD></TR></TABLE>

Yea. I understand now, thanks

My only concern is that the turbine outlet is truly 2.5" and by using this flange, causing a slight restriction. The 2.5" will be immediately flared out to 3" all the way back.

I have to use the 5 bolt housing because i've decided to go with a cast manifold for the time being and it doesn't have a wastegate port. This is going on the Volvo. I was going to get a tubular manifold made, but with the limited room behind the motor, it really looked like a pain in the ***.