Starting Build and doing research

Discuss the RB20, RB25 and RB26 series engines.
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GSDKinked
Posts: 542
Joined: Thu Jul 17, 2008 7:44 am
Car: 1997 240SX LE
Location: West Chester, Pa
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Darius wrote:That is a sound plan. You'll be surprised how fast the car will be with "only" 400hp. You might even be satisfied with that level of power and decide not to build a second motor on the side. Who knows? :cool:
I know I'll be happy with 400 whp. Since this an oem build, I should still invest in an N1 pump, crank collar and etc right? It will the most powerful car I've ever owned. And I know i'll build the other block because I want to drop that into an FC RX 7.


Darius
Posts: 4820
Joined: Sun Mar 02, 2003 9:48 am
Car: RB25DET S14 - 665 WHP (SOLD)
Location: Chicagoland

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Most will recommend an OEM oil pump with crank collar. I run an N1 and haven't had any issues. But yes in general, you'll need to do the usual rebuild stuff like honing the cylinders, milling the block surface, milling the head surface, new head gasket (not Cometic), new gaskets all around, etc.

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GSDKinked
Posts: 542
Joined: Thu Jul 17, 2008 7:44 am
Car: 1997 240SX LE
Location: West Chester, Pa
Contact:

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Darius wrote:Most will recommend an OEM oil pump with crank collar. I run an N1 and haven't had any issues. But yes in general, you'll need to do the usual rebuild stuff like honing the cylinders, milling the block surface, milling the head surface, new head gasket (not Cometic), new gaskets all around, etc.

Alright, notes taken and lastly, what's your opinions on heat management in terms of coatings? (yes I know it's money that could spent else where but I believe managing heat could help alot with longevity of this set up). And also, port matching and extrude honing the exhaust manifold?

Darius
Posts: 4820
Joined: Sun Mar 02, 2003 9:48 am
Car: RB25DET S14 - 665 WHP (SOLD)
Location: Chicagoland

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IMO coating the exhaust manifold, turbo exhaust housing, and down pipe are worth money. It really keeps engine bay heat down.

I would simply port match the OEM exhaust manifold but I wouldn't spend money on extrude honing it unless you have a hook up to do it for cheap. The capacity of the log manifold is easily good to 400-500+HP with the turbos that most people run.


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