G22 swap questions, and knowledge

[str8jdmswap]

i know im going to get negative coments . but im trying to do this swap with out making it turbo.. everything is stock. now this is what i have done. took out my f22a6 head from my block (f22a6) and put on an h22a head. pluged up the holes that needed to plug up. now ive done my research. and all i have left. is to change the waterpump gear to an h22 one. and put an h22 timing belt on. and i should be good to go. correct??
i want to know if anyone else has done this recently. and how its came out. and if anyone else knows something that i did not mention. i just want to make sure and do this swap as best as i can. thanks in advance.

[TracieS]

http://www.cb7tuner.com/vbb/showthread.php?t=27355 this would be the guy to talk to he has done the swap and it has lasted it for a while.

[deevergote]

lodollar's swap has been fully built. The block has been sleeved, and the bores enlarged to match the combustion chamber diameter. There's a big difference between his swap, and simply slapping an H22A head on a stock F22A block.

As I'm sure you've read already... this will give you a low-compression, low-redline mockery of an H22A, with cylinder bore diameters that are smaller than the combustion chamber diameters (which is providing a very convenient sharp ridge to encourage engine-destroying detonation...)

Unfortunately, I don't have the information necessary to answer your question. Although lodollar's engine is fully built, the questions you have can still probably be answered by him.

[sulimed]

you put on a h22 timing gear also right?

[toycar]

lodollar's swap has been fully built. The block has been sleeved, and the bores enlarged to match the combustion chamber diameter. There's a big difference between his swap, and simply slapping an H22A head on a stock F22A block.

As I'm sure you've read already... this will give you a low-compression, low-redline mockery of an H22A, with cylinder bore diameters that are smaller than the combustion chamber diameters (which is providing a very convenient sharp ridge to encourage engine-destroying detonation...)

Unfortunately, I don't have the information necessary to answer your question. Although lodollar's engine is fully built, the questions you have can still probably be answered by him.

Deev's right. If you dont get that combustion chamber issue resolved, its going to give you some issues.

And I read the entire write up/thread on the entire G22 idea. I wish people would stop calling it that. Anyways, theres more to it then just swapping the head for sure.

Things got pretty elaborate in the details of that build.

[str8jdmswap]

yeah i would have like an 8:2 compression. and 6500 redline.

[str8jdmswap]

you put on a h22 timing gear also right?

didnt know i would have to.

[str8jdmswap]

i have pm'd
LoDollar92LX
even though he is fully built. it may just help.

[Ralphie]

HA!

When i saw this thread i immediately came in to see if Deev had posted because i know how much he hates this idea ROFL.

Carry oN!

[deevergote]

Deev's right. If you dont get that combustion chamber issue resolved, its going to give you some issues.

And I read the entire write up/thread on the entire G22 idea. I wish people would stop calling it that. Anyways, theres more to it then just swapping the head for sure.

Things got pretty elaborate in the details of that build.

You are quickly becoming one of my favorite people!
Yes, the G series is a 5 cylinder engine that came in 2.0L and 2.5L sizes. It can be found in the Accord Inspire, Acura Vigor, and Acura 2.5TL. If there wasn't already a G series, calling the H/F hybrid a G would be clever... but since there already is, it's just dumb. It would be like combining a Cadillac with a Chevy and calling it a Buick.

Anyway, the combustion chamber issue is merely theoretical. I've never actually seen it cause a problem. However, I try to keep my distance from these hybrid builds, because MOST people that do them have no clue what they're doing, and they're just trying to build a cheap H22 (or they want the F22's iron sleeves because some dumbass told them that the H22's FRM sleeves are no good, or that the F22A's low compression is "good for boost". )
If the ignition even takes place while the piston is at the very top of the cylinder, then it may not be an issue... but if it happens before or after, a hotspot could develop.

[Skeet Skeet]

Whats wrong with a F23a1 block with H22a1 head? Im bout to start a build on one.

[deevergote]

Same as above. Smaller bore diameter, low compression, low redline. It's going to be a turd of a motor, unless you do lots of work to the block. If you do that, then you could have just stayed with an H22 block and avoided the hassle of doing the extra custom work.


I love how people that are actually doing these things don't even know the potential problems. Doesn't anyone do any research before they start building motors anymore?

[Skeet Skeet]

I have actually researched some G23 projects using the K20 pistons and people take them to 7k+. Im sure there is nobody that uses stock pistons on the G23 setup. That one magazine pretty much started a craze and from looking at it, I haven't found threads that say they didn't do well.

[deevergote]

Yeah, that magazine article creates plenty of headaches around here...
I don't believe a single person on this site has completed such as swap, which is why there's very little about it being good or bad. This is one of those things people often start, but rarely finish.

It will take quite a bit of modification of the bottom end to have it revving reliably to 7k. It still doesn't change the bore diameter issue. OR the fact that you're doing a ton of custom work. Every part you touch is another part that could potentially be a problem if you didnt' install it correctly.

Would this be your first engine build? I REALLY don't suggest your first to be a hybrid. Learning how to build an engine properly without doing custom work is VERY valuable.



If you want a motor that will rev to 7k+, have good compression, and make decent power... just buy a full H22. It does it from the factory. That extra .1L REALLY doesn't make all that much difference!

[Skeet Skeet]

Im actually taking my motor to the machine shop at school and we are going to research it and just play to see what is needed to accomplish it without issues.