NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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-   Single Turbo Discussion (https://www.nopistons.com/single-turbo-discussion-13/)
-   -   Divided Vs. Undivided Housings ? (https://www.nopistons.com/single-turbo-discussion-13/divided-vs-undivided-housings-27582/)

badass7 10-27-2003 07:28 PM

From what I understand, a divided housing will allow for quicker spooling and constant power throughout the RPM's. What do you guys think ?

setzep 10-27-2003 07:54 PM

I woulden't have it another way.

9BASE3 10-28-2003 12:33 AM

I talked to a few guys at a garrett manufacturer and they said there's really nothing proving that divided is any better... Who knows. https://www.nopistons.com/forums/pub...IR#>/dunno.gif

DuMaurier 7 10-28-2003 07:00 AM

SO are they are saying that there is no point to a truly divided manifold ? , I hope not !!!! , I think the true effect of it will depend on what your engine and exhaust manifold set up is , for instance , on a four or six cylinder using a logtype manifold its pointless , but on a rotary with separate exhaust runners , you'll be surprised.To reap the REAL benefits of a divided housing you would need a truly divided (or as closely paired as possible ) exhaust manifold.

Ever wondered why modern manifold manufactures try their best to "PAIR" cylinders and "TUNE" the runners like on those fancy HONDA turbo manifolds ?, ........... divided turbine housing = Lightning fast spool = won races .!!!

BoostedRex 10-28-2003 08:01 AM

DuMaurier has a good point on that one. I would have to agree with that statement. Just my .02 though

1Revvin7 10-28-2003 08:05 AM

Depends on the size of the turbo how much the divided housing/manifold will effect it..

badass7 10-28-2003 01:43 PM

Well, I will be running a T-60-1 w/divided Tang. housing along with a newly built street ported motor. Hoping to spool at 3500 RPM's. Will post how things turn out.

9BASE3 10-28-2003 07:44 PM

I completely understand. Just stating what I heard... https://www.nopistons.com/forums/pub...IR#>/smile.png

BDC 10-30-2003 06:27 PM


Originally Posted by DuMaurier 7' date='Oct 28 2003, 05:00 AM
SO are they are saying that there is no point to a truly divided manifold ? , I hope not !!!! , I think the true effect of it will depend on what your engine and exhaust manifold set up is , for instance , on a four or six cylinder using a logtype manifold its pointless , but on a rotary with separate exhaust runners , you'll be surprised.To reap the REAL benefits of a divided housing you would need a truly divided (or as closely paired as possible ) exhaust manifold.

Ever wondered why modern manifold manufactures try their best to "PAIR" cylinders and "TUNE" the runners like on those fancy HONDA turbo manifolds ?, ........... divided turbine housing = Lightning fast spool = won races .!!!

I agree emphatically.



B


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