I was just curious as to whether or not there is any difference between the 4th gen H22 and H23 intake manifolds, mainly because I was told by someone, seemingly very prelude knowledgeable, that the manifolds were the same and the H22 Skunk2 IM would work for the H23. I know that if this were the case, it seems like the manifold would be marketed for both engines, but I would like to know for sure. Also, if they are different, what is different about them and can this be adjusted so that it would fit an H23? I would just love to put a Skunk2 IM on my H23. Any info or whereabouts of info is appreciated, thanks.

 

the stock intake manifolds are the same, so as far as the skunk 2 piece, i would assume it would work...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Nick H &raquo;</TD></TR><TR><TD CLASS="quote">the stock intake manifolds are the same, so as far as the skunk 2 piece, i would assume it would work...</TD></TR></TABLE>

Last I looked coolant ports and bolt pattern are different. Skunk2 or Euro R will not work on an H23. Please edit your above post to eliminate misinformation...

Pirate

 

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

Last I looked coolant ports and bolt pattern are different. Skunk2 or Euro R will not work on an H23. Please edit your above post to eliminate misinformation...

Pirate</TD></TR></TABLE>

well maybe you should look again too b/c i could be wrong but i thought they were the same too.

 

can someone put an end to this . either it is or its not. which one is it

 

To put it in laymen's terms, the "top piece" of the I/M (the part that connects to the throttlebody) is the same on the H22's and H33's but the "bottom piece" (the one that connects to the motor) is not the same.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Cashis Lee &raquo;</TD></TR><TR><TD CLASS="quote">To put it in laymen's terms, the "top piece" of the I/M (the part that connects to the throttlebody) is the same on the H22's and H33's but the "bottom piece" (the one that connects to the motor) is not the same.</TD></TR></TABLE>

Ding ding ding we have a winner.

 

thank you

 

Alright, good to have that settled...now does anyone know WHAT is different or have any good pictures to compare them? (or atleast of an H22 manifold, cause I have an H23)

 

The head flanges are different. Therefore the runner design is different. Whatever your planning on doing is not going to work (unless you want to waste money)

 

So is porting and polishing the stock manifold the only way to gain more power out of an IM for an H23? Does anyone know of any other options (Besides OBX) or if any company is planning on releasing an aftermarket manifold in the future? Thanks for the info.