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Chat General Discussion About The Nissan 240SX and Nissan Z Cars |
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#1 |
Zilvia Member
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downpipe size question (searched)
ok i have a t3/t04e turbo with a 2.25" 4 bolt turbine dicharge flange....
the downpipe i had made ended up coming with a 2.25 5 bolt flange ![]() i have access to a 4 bolt 2.5" flange, but im wondering since they arent really close to the same size if it will be a problem.. im thinking it might be ok, but i dont see what other options i have, since after searching a ton of stores i cant find anyone who sells a 2.25" 4 bolt flange. ![]() what is the easiest solution for this problem? im sure there is something simple, but this is my first turbo project, so im a bit overwhelmed... |
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#2 |
Nissanaholic!
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As long as it will bolt up and seal...BIGGER is BETTER.
So use the 2.5" 4-bolt flange...and use 2.5" piping (maybe 10-12" of it), until a point in your DP where there's room to pump it up to 3". - Brian
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#3 |
Zilvia Member
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my dp is already set up 2.25 > 3 after less than 6" of smaller pipe.
is there an easy way to weld a 2.25" circle into a 2.5" hole that i am not aware of? or will they just have to use a shitload of welding? just seems like an ugly gap. oh well, maybe they can hog out the pipe to make it fit... thanks for your reply though, at least i know the idea will work if i can get the flange on there! ![]() |
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#4 |
Leaky Injector
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your exhaust is only as good as its smallest part. the shorter the amount of 2.5" or whatever piping the better.
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