turbine housing question

Discuss the RB20, RB25 and RB26 series engines.
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S14-NEO
Posts: 1385
Joined: Wed Feb 16, 2005 6:38 am
Car: 1995 nissan 240sx RB25 NEO powered

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Ok, Ive got a 60-1 turbo currently...its been rebuilt with an upgraded 67 wheel on the compressor side...it makes amazing power but I feel like its kinda limited due to the small exhaust housing (.63 AR)...I am wanting to increase the size of it but beofre I did I was just curious as to my possible potential power gains ..i was thinking of going to a .82 AR or possibly bigger if thats even possible...your thoughts?


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Carl H
Posts: 5985
Joined: Mon Aug 04, 2003 4:09 am
Car: 1995 Nissan 240SX SE RB30DET

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only a .63??!?!
you'll gain silly top end going to a .82, like possibly 30-40 hp, maybe a bit more.

mixeds14
Posts: 601
Joined: Tue Feb 26, 2008 12:44 pm
Car: 240
Location: nc

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Was wondering what kind of power ur making with ur setup..im goin with a similar setup on my neo and like to know about what I'm goin to get. also im installing some pon cams type b.. wirh my set up

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S14-NEO
Posts: 1385
Joined: Wed Feb 16, 2005 6:38 am
Car: 1995 nissan 240sx RB25 NEO powered

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Around 500whp....poss a little more

RRRRB
Posts: 759
Joined: Wed Jun 01, 2011 9:31 am
Car: 98 RB powered S14
Location: WA

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im running a divided 1.00 T4

Id go .82 or perhaps 1.06 if your revving high


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