ENG: diy plenum spacer

[Jukesbox]

will taking out the butterflies on the h22 do anything??

hope this shines a bit of light
http://honda-tech.com/showthread.php...ntake+manifold

now my question is what if you leave one set of butterflies and just add a spacer underneath for a h22? just like the one on the first page

[tresexohcb]

Did you put your butterfly plate on the top IAB? Wouldn't it be more of a full time benefit to have the butterflys on the lower plate?

[close2classic]

Is it possible to stack those spacers 7 high? Then run a ram air scoop out of the hood? hahaha.. Please someone with the time and resources should try this.

[Jon]

Is it possible to stack those spacers 7 high? Then run a ram air scoop out of the hood? hahaha.. Please someone with the time and resources should try this.

Yeah... I'll get right on that.

[MclovinRR]

well i've done this with my A6 and have the H23 plenum and tB and it has huge low end power now... with a stock a6 mani i would stomp the gas while cruising in 1st and it would only pick up nicely... with it spaced it burns out while at a cruise... ill post up a short video really soon..

[F20A CB7]

Did you put your butterfly plate on the top IAB? Wouldn't it be more of a full time benefit to have the butterflys on the lower plate?

good question

[415Riderz]

how many gaskets will i need? where would they go? plz explain... i have a JDM F22a with the butterflies, so i will need to scout out a H22 upper plenum (to gut it) and a TB, correct?

[PR CB7]

hey guys.....


if you get a 3rd spacer

put the butterfly spacer in between both hollow ones and you'll get mad torque

plenum+spacer+IAB spacer+spacer+runner=tower of terror

[F20A CB7]

hey guys.....


if you get a 3rd spacer

put the butterfly spacer in between both hollow ones and you'll get mad torque

plenum+spacer+IAB spacer+spacer+runner=tower of terror

That's crazy man, won't u loose low end tq from all the spacers.

[Lakersfan24]

So I read all 10 pages of this thread and I have a couple of qusetions I just want some clarification. I have 91 SE with A6 so if I do the H23 Plenum and do the spacers do the butter flies stay at the bottom and them the two gutted spacers on top or do you gut the bottom one then the butterflies and then gutted or what im confused here can somebody tell me step by step . Somebody please help and I have an AT so does the plenum have to be from an AT or does it mater. Thanks

[Jon]

To start, it doesn't matter if it's an auto or manual intake. All you need to do is remember to swap over/connect the AT wire to the throttle body when you swap plenums.

And since you have an A6, you already have one spacer. So all you will want to get is a second one (for a total of two spacers).

As for the order of the spacers, that's up to you. If you want to keep the butterfly valves operational, I'd put the spacer with the butterflies on the bottom, then the gutted one on top of that, then the plenum.
Or you can gut both spacers.

So to recap...
Get one more spacer from either another A6 or an H23.
Get the H23 plenum.
Get a H23 or H22 throttle body.
Gut one or both of the plates.
Install the plates in whatever order you would like (personally I would go with the butterfly plate on the bottom).
Hook everything up (vac lines, coolant lines, etc.).
And enjoy!

So I read all 10 pages of this thread and I have a couple of qusetions I just want some clarification. I have 91 SE with A6 so if I do the H23 Plenum and do the spacers do the butter flies stay at the bottom and them the two gutted spacers on top or do you gut the bottom one then the butterflies and then gutted or what im confused here can somebody tell me step by step . Somebody please help and I have an AT so does the plenum have to be from an AT or does it mater. Thanks

[Lakersfan24]

Thanks for the help, now I understand now I have to find the plenum I went to the jy and not a single prelude there. There was like 15 cb but that's it I even checked eBay but nothing yet. What would happen if I double stacked my a6 plenum for now would that do anything or would it be a waste of time

[415Riderz]

will i notice any difference if i swap out my a6 runners for the h23 runners? or is it all the same thing?

[ikayto]

from what i recall, h23 runners are shorter=more high end torque.

[F20A CB7]

h23 runner isnt all that short than a a6, like a half inch or so shorter. not by much at all. now h22, diff story.