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Intake Manifolds

Wazz

By Wazz,
in Engines & Forced Induction

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Wazz Community Regular

Wazz

Posted
Posted

Ok does anyone know of ANY companys that make intake manifolds for rb20's even if its just the top half.

also.. i saw it somewere in a magazine.. someone had put a standard rb26 intake manifold onto a rb20 and done tests.. (wish i new were the hell it was a saw this) anyone know wat needs to be done to get this to work..

im sure im not the only one that wants a intake mani which faces the front instead of this back across the engine making IC pipes 2 meters(exaduration) long... (also its a tight fit for rb20 in a s13) :)

ALSO to save people saying anything about the greddy plenums for rb25's... they dont fit rb20's :P

Cheers

Warrick

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Sydneykid Grand Master

Sydneykid

Posted
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There are a number of threads on this subject, I suggest you do a search. So you want to be able to change injectors easily (how often do you do that?) and you don't mind looosing power EVERYWHERE and having poor idle control. If you had done a search you would have read about why this occurs. I have posted up pictures of the RB26 plenum and the necessary fabrication required to fit an RB20, a search will show you that. The search button is your friend.:P

PS; did I mention do a search?

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Wazz Community Regular

Wazz

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hmm loses power everywere poor idle? :P hmm didnt think it would be that bad... its a pitty greddy or someone doesnt have something like the rb25 one for a rb20... :)

also.. spark plugs.. blah blah blah to tired to really think of other shit that you have to move.. were as front facing plenum would simply make it half the work.. meh i think sleep time almost or something like that :)

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RBCalais Enthusiast

RBCalais

Posted
Posted

Hopefully I'm not hi-jacking a thread here...

But I've been looking at purchasing an R32, which aparantly has an RB25 head and RB26 block. I won't mention the guys name as it is from this forum (people might be able to figure out which R32 or which guy it is, based upon this though).

He sent me a picture of the engine bay, and I was concerned about the amount of RB20 gear contained within (i.e. cam covers, timing belt cover, intake piping are all RB20 items and I can't see a VCT solenoid)

But it has does have an RB25 intake manifold. Anyone got any opinions on whether this would infact be an RB25 Head (probably a DE seeing as how its non-vct)

See attached pic:

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Sydneykid Grand Master

Sydneykid

Posted
Posted
Hopefully I'm not hi-jacking a thread here...  

But I've been looking at purchasing an R32, which aparantly has an RB25 head and RB26 block.   I won't mention the guys name as it is from this forum (people might be able to figure out which R32 or which guy it is, based upon this though).

He sent me a picture of the engine bay, and I was concerned about the amount of RB20 gear contained within (i.e. cam covers, timing belt cover, intake piping are all RB20 items and I can't see a VCT solenoid)

But it has does have an RB25 intake manifold.   Anyone got any opinions on whether this would infact be an  RB25 Head (probably a DE seeing as how its non-vct)

See attached pic:

It may not be an RB25DE cylinder head, it is a simple unbolt job to remove the VVT solenoid and actuator. RB20 cam covers cetainly fit.:(

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