H22 pistons in an H23 - Honda Prelude Forum

pter · 06-22-2001, 01:39 PM

So I understand the center-to-center lengths are different.
What's the preferred remedy?

Just thinking I'd like a little bit more compression.
TypeS pistons?

Any insight you guys have would be great!

BlueDream · 06-25-2001, 01:54 PM

I would like to know also

g5luder · 06-29-2001, 11:22 AM

yes you can do it. it will work. grant lockwood who races in the speedvision wc series is running this set-up and is considering using type-s pistons in the near future also.

i also have a set of type-s pistons for sale if interesed brand new still in the box.

pter · 06-29-2001, 11:43 AM

What other factors come into play?
Like what kind/length of rods to use? Do they have to be custom fabbed? Or just use H23 or H22 factory spec'd rods?

What does this do to the R/S ratio?

BlueDream · 06-29-2001, 01:32 PM

So does that mean I could just get those pistons and basically stick them into my 2.3L 92 Prelude Si with no other changes and away'd I'd go?!?!

pter · 06-29-2001, 02:08 PM

I think there are other things you left out.
For example, Grant Lockwood is running the 2.3VTEC setup. This is a little different from putting H22 pistons in an Si. It also means that he's running the VTEC head as well.

Not to mention it's all out race, so don't know about reliability

I'm curious as to what overall compression ratio we would see if we did this, and if the rod/stroke geometry improves and by how much.

g5luder · 06-30-2001, 08:40 AM

i belive that the comp ratio was around 11:5.1

AJM-RACING · 06-30-2001, 11:30 AM

No this setup doest work, I had it all put together in my H23 and bam the valves were hitting the pistons, I was using Type s pistons on h23 rods, I ended up selling them for 150 bucks.

g5luder · 06-30-2001, 11:33 AM

i belive you need h22 rods