Downpipe Fitment
04-01-2012, 06:52 PM
#7
The first thing you need to do is give us a break down of your turbo setup. What you have on the car, what you are going to do, etc...
Your turbine housings looks gigantic in those pictures and your manifold has your turbo placed at a very awkward angle. Most top mount manifolds place the turbo forward so there is enough room for the downpipe.
I have no idea what is going on with your wastegate, either.
Give us some more pictures and some information on this setup you are trying to run, AND PLEASE, be descriptive.
Your turbine housings looks gigantic in those pictures and your manifold has your turbo placed at a very awkward angle. Most top mount manifolds place the turbo forward so there is enough room for the downpipe.
I have no idea what is going on with your wastegate, either.
Give us some more pictures and some information on this setup you are trying to run, AND PLEASE, be descriptive.
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04-01-2012, 08:48 PM
#11
Cpt. Slow
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Yeah, that's not gonna fit.
Having just sold a top mount greddy kit, and I'm currently installing a side mount with a 3" downpipe, I can give you a few hints.
First of all, with side or bottom mount turbos, dp pipe fabrication and routing becomes gobs easier, although harder to bolt up. You don't have to bend it down, forward to avoid the firewall shelf, and then back down along the transmission. This makes it look a little like a question mark (?). With side mount, you're right at the level of that shelf, and by the time you angle it down just a little, you're below it and can go fairly straight. With bottom mount, you really only need to angle the dp pipe down, no bends really required.
Top mount:
Side mount:
Bottom mount:
You can see that you really don't have room between the shelf, brake lines, and your large turbo, to do that ? shaped top mount downpipe. Your options are to try and flip the manifold over, move the flange forward, get a smaller turbo, or start with another manifold altogether.
Having just sold a top mount greddy kit, and I'm currently installing a side mount with a 3" downpipe, I can give you a few hints.
First of all, with side or bottom mount turbos, dp pipe fabrication and routing becomes gobs easier, although harder to bolt up. You don't have to bend it down, forward to avoid the firewall shelf, and then back down along the transmission. This makes it look a little like a question mark (?). With side mount, you're right at the level of that shelf, and by the time you angle it down just a little, you're below it and can go fairly straight. With bottom mount, you really only need to angle the dp pipe down, no bends really required.
Top mount:
Side mount:
Bottom mount:
You can see that you really don't have room between the shelf, brake lines, and your large turbo, to do that ? shaped top mount downpipe. Your options are to try and flip the manifold over, move the flange forward, get a smaller turbo, or start with another manifold altogether.
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04-02-2012, 12:00 AM
#15
Slowest Progress Ever
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Join Date: Oct 2007
Location: The coal ridden hills of Pennsylvania
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Since I can't resist and I enjoy reviving old sayings that people can't stand...
"Why turbine so huge that downpipe won't fit?
Because...well, you guys know the rest."
"Why turbine so huge that downpipe won't fit?
Because...well, you guys know the rest."
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04-02-2012, 01:00 AM
#17
OP: your only supposed to use those (oil drain flange) in the southern hemisphere, it wont work up here. And that downpipe should be L shaped for maximum flow & horsepoerez. Cut at it w/ sawzall until everything looks right. Use zipties to keep it in place but get the thick ones so they don't melt w/ the intense turbo hot hot heat.
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