Ok, I have a few plans that I want to set in motion in a few weeks. I'll be running a about 6psi with a 18G turbo with my h22. I plan to rip open the block and replace the piston rings with some beefier ones. The car will be tuned with a Hondata p28. I will prolly devote quite a bit of time with a dyno just to tune it properly. Now to my questions:

1. Where can i get better rings for the stock h22 pistons?

2. Injectors?

3. What else would be needed to run 6 psi safely?

Thanks guys! I know a lot of ppl will tell me to sleeve it, thanks but I don't plan to do that for another year or so.

 

I believe the most probably failing point is the piston ringlands and not the actual rings themselves. So boosting with a bad setup could cause them to fail. I know of stock ludes that boost 10psi all day so it will ultimately depend on your setup whether it will work or not...

 

I'm a total noob when it comes to engine tech but is there a way to change the ringlands with better units?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Pikachu &raquo;</TD></TR><TR><TD CLASS="quote">I'm a total noob when it comes to engine tech but is there a way to change the ringlands with better units?</TD></TR></TABLE>

Yeah there is, you must get aftermarket pistons. However, you can not use aftermarket pistons on your stock sleeves because they are different materials. Your stock walls are made of nickel something something. (sorry forgot the name of it)

In order for you to run aftermarket pistons you have to get your h22 sleeved from GE, Darton etc.. Then you can use after market pistons.

HTH
edit - stock injectors are fine for 6psi. I mean in all honesty you can survive on stock h22 @ 6psi. It's just that you never know when it will go.

 

Yeah but then that would be heading into the direction you were afraid of; changing pistons..

It is said that Wiesco has a set of piston rings that gives you the ability to use aftermarket pistons in the h22 block without having to resleeve but there is not enough evidence to prove that it works without fault under force induction applications...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jason kiDD &raquo;</TD></TR><TR><TD CLASS="quote">Yeah but then that would be heading into the direction you were afraid of; changing pistons..

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

Why would he be afriad of changing the pistons?

 

I'm not afraid of changing pistons but I'm afraid of having to do sleeving so soon.

ekb18c: sleeving is extremely expensive, unless you can give me a decent price on sleeving, I can't go that route just yet.

 

I think he answered it for ya..

*and that is mostly why the h22 platform is less popular than the b-series*

 

I'll give you a decent price.

Hit me up with a pm

 

PM'ed

 

It's very interesting. I still don't want to sleeve the engine yet but I'm interested in looking at the wiesco pistons that do not require sleeving. Doesn't seem to be much info out there. Anyone point me in the right direction?

 

Best thing would be to call weisco.. And I believe it is the actual piston rings themselves that allow you to use aftermarket pistons in an unsleeved h22 block. However again there is not enough substantial usage to verify if they work or not.. At least no any on Honda-tech...

 

Ongoing discussion/debate/experiences with wiseco pistons in the stock H22 FRM sleeves: https://honda-tech.com/zerothread?id=416069

Don't risk it, sleeve the block.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ekb18c &raquo;</TD></TR><TR><TD CLASS="quote">Your stock walls are made of nickel something something. (sorry forgot the name of it)</TD></TR></TABLE>
If you are thinking of the term nikasil, there is no nikasil in the stock H22 FRM (fiber reinforced) sleeves.

 

Seems I will have to sleeve. I basically don't want to take the risk. What compression ratio should I run with and what kind of forged piston?

 

I recommend from 9:1 to 10:1

JE or CP...

 

I'm happy with 10:1 on my JRSC setup. How much boost do you plan on running? If I were to boost 1 bar or more I would go with 9:1.

 

if u have the 95 motor, i dont think u need to resleeve...i know the new H22s u have to resleeve, since we have an open deck, the older H22s have a closed deck.

 

What does that have to do with anything?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sharkcohen &raquo;</TD></TR><TR><TD CLASS="quote">Ongoing discussion/debate/experiences with wiseco pistons in the stock H22 FRM sleeves: https://honda-tech.com/zerothread?id=416069

Don't risk it, sleeve the block.</TD></TR></TABLE>

That was the best thread i've read on the FRM issue so far.

Thanks for posting that link..

 

No prob. I also had Nick add it to the Prelude forum FAQ.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by makavelli1227 &raquo;</TD></TR><TR><TD CLASS="quote">if u have the 95 motor, i dont think u need to resleeve...i know the new H22s u have to resleeve, since we have an open deck, the older H22s have a closed deck.</TD></TR></TABLE>
The issue has nothing to do with open deck vs closed deck, it has to do with the material the sleeve liners are constructed of.