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I have a forward facing plenum for an RB20det I got with the car that I don't need.

What you see in the pictures in what you get. It looks fairly complete.

I will start at $220.00 ono

I am located in Brisbane with Pickup preferred, or the purchaser to arrange their own freight.

Please email kirstennick@optusnet.com.au or call 0412 547 402 if you are interested.

Thanks

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  • 2 weeks later...

not to be a nay sayer but isn t there a reason why you don t put a forward facing planum on a rb20?

I remeber my performance mechanic saying people had tried it and it did something wrong with the motor.

I could be wrong but that is what he said when a mate of mine asked to modify his rb20 planum to forward facing.

Leafy Bug

You would have to at least modify intercooler piping, and your throttle cable.

As for the computer I don't know sorry.

Maybe.... just maybe GTIR-Keiron's (comment above) 'performance mechanic' who is an RB20 guru might be able to give you some performance advice though. It really sounds like his his mate's, wife's, cousin's, roomate's, aunt knows what they are talking about.

R32_Abuser

Thanks mate I have replied to your email with some options. Perhaps if we were to go ahead with a deal we should get GTIR-Keiron's 'performance mechanic' to provide some independant consultancy services, and a complete a full compare and contast report on the efficacy of the RB20 forward facing plenum, versus the standard plenum. Sounds like he really knows his stuff.

GTIR-Keiron

Thanks for the input buddy/nay sayer. Ive sent you a PM requesting you to edit your comments. Please keep your unquantified comments out of other people's threads. Why waste everyone's time here?

in light of GTIR Keeirons amazing advice i guess i should remove my forward facing plenum which seems to be working quite well and funnily enough dropped my intake temps but hey if MR K says so ill have to take it off

on a serious note these things are great and shorten your intake pipe by almost 1m if you use a standard cooler with an outlet on either side and less intake pipe means less air volume to take the car from vacum to boost

but hey just my 2c good luck with the sale mine cost more than this

Thanks 'ez 10'.

It's good to get some quantifiable performance gain info.

They are supposed to be a really good value mod.

I would fit it, I just want under my bonnet to look standard.

Edited by NW007

would love this if it was straight bolt on ....so how do you modify the throttle cable? just extend it? how did you do your one? any pictures of it installed?

Your standard throttle cable may already fit seeing as it has a standard throttle body?

It should just bolt straight on top of your intake manifold with some minor intercooloer plumbing changes?

I don't have any pics of it on the car as I have never had it on. I got it with the car when I bought it. Here's a pic though of one I found. It looks like a standard one that's been modified slightly differently though?

http://media.photobucket.com/image/rb20%20...n/april2005.jpg

i did the same thing to my 25 plenum but with a 90mm throttle body it gave me another 13rwkw but this was tuned on a hot day (got retune because it was running little rich cause of the volume of air in the intercooler changed) i used my std cable too. it made it more responsive also, to get this done it will cost at least 300 or so depending on the place u go to

Thanks 8znR33. Good info!!

Yeah they say they go well.

$300 you say for the mod?........ and I bet that is supplying your own too?

At $220.00 this is a bargain people!

Thanks 8znR33. Good info!!

Yeah they say they go well.

$300 you say for the mod?........ and I bet that is supplying your own too?

At $220.00 this is a bargain people!

hey sorry been a while since i was last on but yea the mod cost me 300 and i supplied the throttle body as well.

I'm not here to say anything ill of the item since I've seen it a couple times before. But I know with the stock form of where the intake is in the middle of that manifold when it comes in sideways in as stock, cylinders 5 and 6 are naturally lean. Now, moving this to the front, which I can tell is a well done job from the welds and such, will the intake be as lean or more lean than stock in cylinders 5 and 6 since the air is directly into the first several cylinders.

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