For those who want a 2.5" downpipe for there ST165's...read

Q&A regarding engines, turbos, and intercoolers and power upgrades

Re: For those who want a 2.5" downpipe for there ST165's...r

Postby klue » Mon Mar 05, 2012 9:07 pm

Not exactly sure what you mean by a bell mouth design.
There are 0 90's in this design, that's why I like it. By using 3 inch pipe your pretty constricted as to what you can do without running into clearance issues. But with 2.5 you have a lot more room to make gradual bends.

Spoke to Kris, there are 2 pipes ready to ship. The rest we can order up approx 3-4 week production time.
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Re: For those who want a 2.5" downpipe for there ST165's...r

Postby ZeroDrift » Tue Mar 06, 2012 12:40 am

klue wrote:Not exactly sure what you mean by a bell mouth design.
There are 0 90's in this design, that's why I like it. By using 3 inch pipe your pretty constricted as to what you can do without running into clearance issues. But with 2.5 you have a lot more room to make gradual bends.

Spoke to Kris, there are 2 pipes ready to ship. The rest we can order up approx 3-4 week production time.


What I am referring to is the section that bolts to the turbo itself. Below is a picture of the different types of turbo mounting designs.

Image

The blank design on the left is where the exhaust from the wastegate has to make a sharp turns to continue down the exhaust. This is restrictive and oftentimes can actually interfere with the wastegate opening fully. Anything else is ideal honestly so long as the wastegate doesn't vent to the atmosphere.
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Re: For those who want a 2.5" downpipe for there ST165's...r

Postby Dracov » Tue Mar 06, 2012 1:22 pm

I have one of these on my old engine and they are definitely a bellmouth design. No restrictions at all to speak of in it and the wastegate should be able to open fully without hitting anything. It really is a high quality item
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Re: For those who want a 2.5" downpipe for there ST165's...r

Postby klue » Tue Mar 06, 2012 3:05 pm

I will post some pictures of mine later :P
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Re: For those who want a 2.5" downpipe for there ST165's...r

Postby ZeroDrift » Mon Mar 19, 2012 5:40 pm

Any progress with this?
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Re: For those who want a 2.5" downpipe for there ST165's...r

Postby klue » Tue Mar 20, 2012 12:13 am

Here is the picture of mine, excuse the rust its had a hard life. You can see the nice taper form the WG into the main tube. Also note the wide sweeping path of the main tube

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Re: For those who want a 2.5" downpipe for there ST165's...r

Postby ZeroDrift » Tue Mar 20, 2012 5:13 pm

Thank you for the picture klue! the downpipe looks good! Gotta get the ball rolling on this so we can all pick one up!
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Re: For those who want a 2.5" downpipe for there ST165's...r

Postby ZeroDrift » Thu Mar 29, 2012 7:14 pm

Looking to see this group buy move forward! I just sent off my spare turbo for an overhaul and want to install a down pipe at the same time.
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Re: For those who want a 2.5" downpipe for there ST165's...r

Postby Anoo21 » Mon Aug 27, 2012 4:10 am

this still going on?
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