93h22a1vtec

Let me know what you guys think, suggestions for making it better are welcome... I think im gonna take some sand paper to the hole thing to clean it up alot.









I am not putting the spacer in.

alterdcreations

i did the samething as you did but i cut the three center walls down to the flat wall in the front
and ported the 4 runner opening. and i also flattened the top front and back and sealed the open passanges with jb weld.
i have a unfinished pic i'll try to post

93h22a1vtec

sounds good, i think im gonna cut down the top half

alterdcreations

here's where i cut out.
i also flattened the top and removed the plate




some unfinished pics

i got some good advise from rosko about knifedgeing the runners . try to make them more of a round thick edge
good luck with it

93h22a1vtec

isnt it better to decrease the plenum size for a NA h22.

high_revs

lets see some dyno runs

93h22a1vtec

i might throw it on the dyno for an hour or so to do some cam timing quick. We will see how money is.

high_revs

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 93h22a1vtec &raquo;</TD></TR><TR><TD CLASS="quote">i might throw it on the dyno for an hour or so to do some cam timing quick. We will see how money is.</TD></TR></TABLE>


no doubt

alterdcreations

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 93h22a1vtec &raquo;</TD></TR><TR><TD CLASS="quote">isnt it better to decrease the plenum size for a NA h22.</TD></TR></TABLE>
i would think so but its also good to shorten the runners also but i havent gotten a clean run on the dyno yet. i have been running out of fuel. i should hit the dyno it 2 weeks for a tune

Hellbound

Looks great guys.
I'm working on something like this for my H23 vtec (blue top).

Greetz Rob

MAX_CFM

ESP-net

I have seen just about every way to slice and dice the USDM/JDM H22 intake manifold and for a near stock setup haven't seen anything to prove modifying one this way will outperform it's stock configuration...from the factory the intake manifold for the H22 was a well thought out configuration and good for performance...

drift4jesus

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MAX_CFM &raquo;</TD></TR><TR><TD CLASS="quote">

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You're looking at one sliced and diced right there by someone who i've heard knows a couple things about hondas. Notice, its on a nifty tool to measure whether or not it is worth pricking with.

flyrod

So how does this compare to the stock manifold on the flowbench: ?

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MAX_CFM &raquo;</TD></TR><TR><TD CLASS="quote">
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Also, how many CFM are the injector holes good for? If you pull that injector out does it actually flow worse?

Hellbound

Who said i'm going for a near stock setup

mgags7

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ESP-net &raquo;</TD></TR><TR><TD CLASS="quote">I have seen just about every way to slice and dice the USDM/JDM H22 intake manifold and for a near stock setup haven't seen anything to prove modifying one this way will outperform it's stock configuration...from the factory the intake manifold for the H22 was a well thought out configuration and good for performance...</TD></TR></TABLE>

WRONG.

Check brads pictures above and you'll see one that flows almost like ITBs.

Using the stock lower half is fine, but the plenum needs some real changes to happen. Honda did a horrible job designing the IM for anyone who wants more power out of the h22, and chopping it up like everyone does NEVER makes good results. Again, custom plenum FTW