Newman

The top pict is crappy pict but it's a pict of my old B20 motor (right side, stock 84mm) and my new B18B block, sleeved by Golden Eagle, at 87mm. Actually, when using a GSR crank & rods for this setup, it'll yield approximately 2.14L but still the same bore size as a stock H22 block. You can somewhat see that the spacing between each cylinder is a lot less now. Also, going into that block will be some stock Prelude SH pistons, calculated to be in the high 10's for compression. Haven't decided on what head to use.... might just use a P&P LS head to keep the motor a sleeper for now. Should be a pretty good comparason compared to my old H22 EG hatchback, and to our shop's H22 EK hatchback, so I'll let you all know how this feels (torque wise) compared to a H22 motor. I'll have more/better picts later..... some picts with a 81mm and 84mm piston inside of the bore so you can see how much bigger it is.

Jeff C

Wow, now that is going to be a sleeper motor. A 2.2l with a 1.8 stamp...sweet.

EDIT: BTW, those walls are thin. You sure they will hold up?


[Modified by Jeff C, 3:56 PM 2/13/2003]

t-blizzard

they do look thin, but hey...good luck!

sleeper4dr

thats what i want to know. it seems to me that the general concensus on the 'safe limit' for cylinder sleeves is 85-85.5mm. how long do you expect this setup to last and does the sleeve thickness have anything to do with why you've chosen a 10:1 CR?

i cant wait to hear what this engine is capable of though!

V3locity

I'd be afraid to touch those cylinder walls, you could might cut yourself.

Thats crazy!!

Newman

Heh... me crazy? Sure I've always done "crazy" stuff before most.... LS/VTEC in my CRX back in 98 before it because popular, turbo B20 in 2000 (right before the B20 fad started), and then one of the first to go H22 into a Civic - all setups for daily driving & weekend racing. But with the work that Golden Eagle did (and after discussing this project with them and a few others that I trust), this setup will work but I'm not going to go crazy with it right off the bat. Soon as I throw this together, we'll see how it does and then use this setup as an example of what can or cannot work. As for the compression, that's what was calculated when using the Type SH pistons. I thought about the JDM H22 pistons but that would've made it around the mid-high 11s and for this setup, I'd rather keep lower in the high 10's. If this motor blows, I'll still have a regular LS block with ITR pistons in it to use so we'll see how this turns out.

goforbroke

I have seen thinner cylinder walls then that. SportscarCompact when they had that right up on Loofsey car and Bisi car well it was about their motors they were running. Their cylinder walls were about half the size of that, crazy ****. Survival of the fittest headgasket.

owen_the_soyboy

holy crap. Newman, you are nuts. here's for you though, I gotta say I am interested in how this turns out.

Are there any issues with H pistons on B rods?

AccSIR

FYI: all the Prelude SH is is a stock H22A4 with a special tranny (the sistem is called ATTS). someone correct me if I'm wrong but all USDM H22A1-4 are 10:1 compretion, H22A JDM compretion is 10.6:1, and the JDM H22A Prelude type-s compretion is 111:1. hope that helps. just ask around in the Prelude forum. BTW, that is going to be an awsome engine. keep us posted.

boosted hybrid

Interested finding on the prelude pistons with the 87mm bore. I went with a 86mm bore on my GE sleeved gsr block with 12.5:1 comp. I wanted to go pretty extreme, but not 87mm extreme. I am waiting on the block to return from GE assembled, should be a pretty interesting set-up. 2.1L b-series with 12.5:1 compression should be pretty nasty. Good luck with your project!

infamousALLMTR

I have faith this will work because I had a 86mm from golden eagle but you will have trouble sealing with 87mm, there has been a lot of discussions on here on the headgasket failing on 85mm and larger. I would use lots of copper spray and block sealent and hope for the best... good luck

wHOAlly

any issues with rods newman? how they gonna fit? modded stock? custom? aftermarket?

Newman

Rods are GSR.... just about everything is still stock Honda parts (no aftermarket forged pieces like rods or pistons). Some machine work to make the Prelude pistons fit onto the GSR rods but otherwise it works. I'll take picts of the assembly later.... been busy lately with containers coming in from Japan

boosted hybrid

Wow, going with stock internals too! Seriously this is a very interesting project. I never would have imagine using prelude pistons in a b-series engine a few years ago. Gluck!

wHOAlly

nifty

owen_the_soyboy

i want a civic

https://honda-tech.com/zerothread?id=415580

nice setup man..there is another thread similar to this one and there is a lot of good info there to about a 2.2l gsr also, i just really want to know how reliable this steup is.!??!?


[Modified by i want a civic, 12:33 PM 2/16/2003]

Jason kiDD

I would think a 2.4ltr h22 would have been more of a project to take on. But good luck..

poison

Jason has said it all

Newman

Heh... maybe next time but this time I had a spare B18B block, got a deal on the sleeving & machine work, got the Prelude SH pistons for free, so said fuggit and I'll do it. Doing some more clearance checks and what not, looks like running the LS head will have no problems. Could've ran with the VTEC head but the only thing that was of a possible concern was the valve-piston clearance since the Prelude SH valve reliefs aren't that deep. If it's a cast piston, don't really want to cut the relief any deeper so I'll just leave it as is and run with a LS head.

On my next EG, I'll do something H22 again with a lil twist

Finest

Good luck on those H22 piston ringlands.


[Modified by 98CTRCoupe, 5:29 PM 2/17/2003]

Jason kiDD

Under good tuning the h22 ringlands can withstand up to 12psi of boost... Why would he have to worry??

K20Ahondas

How about 2.2l with only a 84.5mm bore. Yes b-series. Done it before with aftermarket cranks. You are going to have problems with headgasketat 87mm. Is this a street car or race?

boosted hybrid

The r/s ratio is going to be total **** on the engine. 87mm is extreme on the bore, which is why i played it safe with the 86mm bore. I'd rather keep the stock gsr r/s ratio of 1.59:1 and a 2.1L displacement, then get a 2.2L displacement with 1.4:1 r/s ratio with the 95mm cranks. For a daily driver, the stock crank, 86mm bore, 2.1L combo is the best you can get without deckplates or aftermarket blocks. The gasket seals well at 86mm with copper spray.

k_spek

I think its cool what you are doing.
Just keep us updated on how it turns out. What a sleeper!