Can I put new pistons w/o re-sleeving H22?

[stock4now]

So, can I? I'm getting the H22 engine with Eagle H-Beam rods and not pistons.... So, I was wondering if I could just throw some type S pistons in there and just hone it, and not having to sleeve the block? Or should I just do the G22 thing?

[ibr_adam09]

its prefered you re sleeve or bore the block so you can get the best compression and smooth strokes. not doing it is like an oil change w/0 a filter (visa versa )

btw since you tearing apart the engine any ways , might as well for your time

[Flatline]

its prefered you re sleeve or bore the block so you can get the best compression and smooth strokes. not doing it is like an oil change w/0 a filter (visa versa )

btw since you tearing apart the engine any ways , might as well for your time

its not exactly easy to sleeve a motor. and can cost a lot of money. The only time you need to re-sleeve an H22 is when you tear apart the cylinder walls, or you are going to use forged pistons.

I wouldn't base your actions solely on me, but you should be fine without it if you don't use forged pistons.

But the real question is what are your plans on this motor? If you are looking into F/I then re-sleeving is probably going to be your best bet.

[stock4now]

Well, what I want is just a N/A Daily Driver, and I was thinking if I can get away with just honing and putting a factory (but a type S) pistons, it would be cool. If not then, I might look into the G22 setup:

http://www.honda-tech.com/showthread...=776837&page=2

I really don't want to mess with the re-sleeving, so I might as well use the F22 block just because of it's iron sleeves which I can slightly bore out and hone and be done with it.

[Jonas]

the frm sleeves in the h22 prevent make it so most aftermarket pistons are not compatible. mahle makes some that will work. ive read that jun and cosworth do as well. the mahle ones would be the cheapest and theyre still quality. you could also just use factory pistons.

factory type s pistons should work with just a hone. see if theres a way to get slightly oversized type s pistons. i forget if its an option or not. should be

[stock4now]

Yes, it's an option as far as slightly oversized type S pistons. So, I would have to bore it out a little bit, would that hurt it or it will be fine with say like 20 over?

It would be just great, since I'm looking the the hybrid thing and it's like a few extra little things that I wouldn't want to do, if I can skip it.

[wed3k]

Yes, it's an option as far as slightly oversized type S pistons. So, I would have to bore it out a little bit, would that hurt it or it will be fine with say like 20 over?

It would be just great, since I'm looking the the hybrid thing and it's like a few extra little things that I wouldn't want to do, if I can skip it.

i wouldnt sweat .020/.50mm over

sleeving is damn expensive. the sleeves alone cost 500-600 bucks.

[Jonas]

yeah most sleeving jobs will run 1000 or more. its not something you want to cheap out on either. cheap sleeves or shoddy machine work may cause total engine failure more quickly than using the stock sleeves

there was a deal a while back where benson was doing sleeves for 1000 flat. benson does good work. basically darton sleeves made to his specifications. reputed to be the best

[stock4now]

Allright, cool!! That means that I will just put the stock type pistons with slightly higher c/r with slightly oversized bore and new bearings and some cams and call it a day! Thanks a lot!

[4GAccordH22]

You can't hone the H22 FRM sleeves. There is no cross-hatching to worry about, as they have a smooth finish. Kinda wierd the first time I saw them... If you want a larger bore, you have to resleeve. But you can put Mahle pistons or OEM Type-S pistons without any modification at all. Just make sure the rods are the same type as the pistons... Either floating wrist pins or pressed pins.

[ACCLUDE91]

You can't hone the H22 FRM sleeves. There is no cross-hatching to worry about, as they have a smooth finish. Kinda wierd the first time I saw them... If you want a larger bore, you have to resleeve. But you can put Mahle pistons or OEM Type-S pistons without any modification at all. Just make sure the rods are the same type as the pistons... Either floating wrist pins or pressed pins.

ditto. I wouldn't recommend doing any honing or boring on the H block. Resleeve or leave it alone.

[Jonas]

i always thought honing was required whenever you replace pistons. not the case with frm?

[ACCLUDE91]

You can hone the FRM's but not by hand like the rest of them. You also have to do it with a machine drill and at a lower speed and with a different stone. Also, if you make a mistake, it's VERY expensive to fix unlike the iron sleeves. It's best not to do it unless it actually needs it.

[wed3k]

id hone it...

[ACCLUDE91]

There's lots of differing opinions on the honing. It is always a good idea to do, but the FRM's just complicate the process a little more and drive the cost of doing it up. It's up to the builder/owner what they do. I didn't hone my H23 when swapping pistons and it sealed just fine, held up, and didn't show any signs of unusual wear-in. I don't think honing would have hurt it at all, but I also don't think I would have seen much, if any, improvement in long term longevity. As far as honing these goes, I say to each his own.