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Inlet Manifold For Rb30det

trunk-rattlin

By trunk-rattlin,
in Engines & Forced Induction

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trunk-rattlin Rookie

trunk-rattlin

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Recently bought a 180sx with a Rb30det in it.

Just getting some work done to it now.

I think i really need to be changing the inlet manifold as its currently got a standard manifold thats been welded up (not too rugged) to be front facing. It doesnt look like it would have good flow to number1 cyl though.

Its got an r32 Rb25de head on it.

I need to know what manifolds will fit this head. My tuner thinks it might be the same as an rb20det because it is a small port head.

Thoughts on the greedy style manifolds?

Need help quick.

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https://www.sau.com.au/forums/topic/206636-inlet-manifold-for-rb30det/
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  • 2 weeks later...
trunk-rattlin Rookie

trunk-rattlin

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Just bumping this up. SirRacer, Are the stud holes the the rb20det the same? I can grind the ports out to match the bigger ports on the head no worries.

The custom plenums look cool, what else needs modifying to make them fit besides intake piping? Looks like they use standard intake runners so fuel rail shouldnt be a problem?

Are they for the r32 rb25de head? Wouldnt mind seeing some prices

I just need this intake manifold before i can chuck it back on the dyno.

so far, getting 180kw at wheels at 4000rpm before boost spikes and goes wild (because of wastegate) which has now been sorted. So the manifold is next on the list

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