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R32 GTR Front Pipe Question

TXSquirrel

By TXSquirrel,
in Engines & Forced Induction

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  • 2 weeks later...
TXSquirrel Community Regular

TXSquirrel

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Got the Greddy front pipe, definitely no equal length.  Using the best flex ruler in the world - the Ikea paper ruler - long tube measures approx. 76.5 cm and short tube measures approx. 59.5 cm from weld to weld.  Obviously not the most accurate measurements, but I tried staying as close to center line as possible.  Weights about 4.5 kg. 

TxaIQJX.jpg

LTf4lSP.jpg

Feeling a little disappointed that I will be switching from Reimax's equal length to a non-equal length, but for consolation Greddy's outer circumference measures at 22 cm while Reimax's OC measures at 19 cm, that's sizable difference in diameter. 

Adding a site note, not sure how other brands advertise their pipe diameters, but both Greddy and Reimax advertise outer diameter instead of inner diameter. 

Edited by TXSquirrel
niZmO_Man Grand Master

niZmO_Man

Posted
Posted

The "good" ones advertise both inner and outer, or at least advertise which measurement it is.

The non-branded one I have looks similar to that, but the pipe for the rear turbo is more curved and goes below the other pipe. Which means it hangs lower and got bashed in :(

TXSquirrel Community Regular

TXSquirrel

Posted
  • Author
Posted (edited)

Reimax also tucks rear turbo pipe under and then curves it out.  I guess that's the only way to create enough length.  And yeah the common problem with that design is hanging lower and getting scratched easily. 

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Reason I'm replacing my front pipe is blown gasket, and I think that's due to mismatching turbo elbow to front pipe.  I took some more measurements: Tomei elbow ID is 68mm, old Reimax front pipe ID is 58mm, new GReddy front pipe ID is 66mm.

67rsUue.jpg

I still don't understand why Tomei pretty much is the only brand that doesn't make a front pipe...

 

Edited by TXSquirrel

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