I bought my 4th gen prelude in the fall of 2006. Before I bought it the entire top end was totally replaced after the timing belt broke. the motor has 98,400 miles on it and the top end only has about 15,000 to 20,000 on it. So my dilemma is if i should get an H22 head for it, or see if I can add anything to my head to make it more like the H22, minus the Vtec. I was thinking Cams for it, but I didn't know if H22 cams were different then the H23 cams, or anything like that, I currently have an AEM cai on it, as well as a DC sports header, and pace setter exhaust.

 

There is lots of info on doing a H23 Vtec motor. Search button will provide the best and their also is a thread entitled How to H23vtec Search Friendly

 

I know I keep saying this....but it applies to all of these threads.

What are you goals for the car?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AndyD &raquo;</TD></TR><TR><TD CLASS="quote">I know I keep saying this....but it applies to all of these threads.

What are you goals for the car? </TD></TR></TABLE>

I dont think many people stagger in here knowing they need goals. I think they just know they want to go fast

 

That is true. My goals are atleast 200 whp. if not 225, without having to get to crazy with stuff.

 

200whp n/a on an h23 is a lot. 200whp on an h22 is a lot of money spent on quality parts.

 

Crower makes cams for the h23. Yes, h22 and h23 cams are different

 

Cams/springs/retainers would be the next easiest thing to try at this point. You could try experimenting with some intake manifolds too. A couple links:

Pirate got 200whp with a H23 head and a DC header:
https://honda-tech.com/zerothread?id=1046336

Plate to use H22 intake manifolds on H23 head:
https://honda-tech.com/zerothread?id=2015914

 

HP goals are ambiguous.

 

Oh, and dyno at churches to get 225...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by flyrod &raquo;</TD></TR><TR><TD CLASS="quote">Oh, and dyno at churches to get 225... </TD></TR></TABLE>

now your talkin

 

would the H22 cams improve HP or torque on my h23?

 

You cant put h22 cams into a h23 head, if thats what your asking.

There is an extra lobe on all vtec cams.