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Thread: Plenum???

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    Default Plenum???

    I've seen these on some rb's, anybody know the pros and cons to this part???

    Thanks
    Goon.
    Quote Originally Posted by Jamie-b View Post
    well i think a "headjob" would be better than stroking it?

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    you will have seen them on all fuel injected cars the throttle body is mounted on the plenum chamber,
    I'm guessing you mean custom plenum chamber, they would be better for more direct air flow.
    Nobody wants to play with me

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    I've got a rajab plenum on mine, it'd be hard to say the difference as I havent' driven the current car without it. But to me, comparing it to my old car, it seems to breath better, if you plant the foot, the fact that it has an xf throttle body for a start you can hear it take a big gulp.

    They're not necessary for good power, and they're relatively expensive. If you're going all out or you plan on upgrading further, could be handy.

    I also liked the benefit of cleaning up the bay by moving my inlet to the inlet side and not crossing over. Makes it easier to change spark plugs and fuel rail etc.

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    Intresting thanks guys, i like the idea of a cleaner engine bay and easier access to the spark plugs wow! I'll get one 4 sure down the track..
    Quote Originally Posted by Jamie-b View Post
    well i think a "headjob" would be better than stroking it?

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    unless ur going all out pretty hard to justify spending money on one, 10 even 9s have been run on standard rb30et inlet manifolds

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    yeah id get one just so when you have to change plugs bang 10 mins work its done.i ran a rajab style one on my old vl.wasnt a rajab one but was made very similar.looked ok and did clean the bay up mine had custom one peice cooler pipes one for plenum sid and one for turbo side better then having 5 peices of cooler piping by the time you get your air its warm+only a few joins instead of 6 or 7 lol less chance of air leaks etc from cooler piping

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    Wicked im so getting one for the 25.
    Quote Originally Posted by Jamie-b View Post
    well i think a "headjob" would be better than stroking it?

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    are your going 25/30 conversion?im sure i have a pick of my old r33 with custom front facing throtle body to

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    Quote Originally Posted by bow down View Post
    are your going 25/30 conversion?im sure i have a pick of my old r33 with custom front facing throtle body to
    U have a plenum to suit that??
    Quote Originally Posted by Jamie-b View Post
    well i think a "headjob" would be better than stroking it?

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    nah got rid of it.it was a cut and shut job but it done well.could have cleaned it up a bit thoe



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    rb25's have some damn nice inlets. greddy's is hot - probably dear as hell though.

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    Quote Originally Posted by bow down View Post
    nah got rid of it.it was a cut and shut job but it done well.could have cleaned it up a bit thoe


    that engine

    i'm getting mine coloured up abit 4 sure
    Quote Originally Posted by Jamie-b View Post
    well i think a "headjob" would be better than stroking it?

  14. #14
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    Okay back on this subject..

    1. my rb30 planum is it interchangeable on the 25??? doesnt matter it was cheap!!

    2. what happens to my afm

    3. what about if i have the intercooler would that save the afm from being moved?? eg.. it would come off the turbo???

    Thanks
    Goon.
    Quote Originally Posted by Jamie-b View Post
    well i think a "headjob" would be better than stroking it?

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    I did some more research, im okay now woo can't wait to get it!!
    Quote Originally Posted by Jamie-b View Post
    well i think a "headjob" would be better than stroking it?

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    put your afm in the cooler piping close as you can get it to the throttle body

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    Quote Originally Posted by bow down View Post
    put your afm in the cooler piping close as you can get it to the throttle body
    Thanks you
    Quote Originally Posted by Jamie-b View Post
    well i think a "headjob" would be better than stroking it?


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