So i was curious if there was a reason everyone did the conventional g23 with an h22 head and k20 pistons? I was playing on the Honda Compression Calculator and what i wanna know is this a safe compression from an h22 head compared to the f22sohc. What is better with the h head? this is what i planned

block-f23
crank-f23
head-f22/f23
pistons-f22b1
connecting rods-h22
compression ratio=11.32x1

or

block-f23
crank-f23
head-h22
pistons-k20
connecting rods-h22
compression ratio=14.49x1

everything im seeing says thats a dangerous compression ratio please send advice or comments

 

There is a lot more to look at than just the compression numbers.

1. The F23 block has an 86mm bore and the F22B1 pistons are only 85mm. Another issue with this hypothetical setup. Your piston to deck height would have the piston out of the hole 2.5mm (0.1"). Therefor your piston would hit the cylinder head.

2. 14.5:1 is race fuel and it would require extensive tuning and lots of head and intake work. Not exactly a daily driver type build.

 

I see your point so running the h series higher compression would be safe as a dd right?...or no not really, and also which pistons would be ideal...and is there an ultimate g23 build out there? Also how would you fix the piston hitting the head beside shorter connecting rods or different pistons? I want to rebuild my motor eventually and I would love to build an amazing g23 for a daily driver.

 

IMO there are really no gains to building a G23 other than maybe saving a little bit of money. First thing, you need to set a goal and a budget. If your goal is to build an amazing G23, there are a literally thousands of G23 threads out there. That have lots of good information. No need to reinvent the wheel here!

 

Appreciate the input Ive been searching for a very in depth guide to an unbeatable unbreakable and unstoppable except for actual braking which is somewhat important any site suggestions

 

Sorry! I'm not aware of any in depth guides to attain those goals. Most people do some research and just build them using Honda manuals and engine building knowledge. If you have nether, then your engine is not going to be unbeatable, unbreakable or unstoppable. Unless you have loads of cash and you pay someone to build it for you. $10-$12K will get you close to your goals.

 

I've got the time knowledge and tools but money is gonna be the hardest part but by the time its done it will be done right.i can promise that, any suggestions from anyone at all who has built this motor before who can tell me what parts they used will be helpful thank you again ghost for all your input bro.

 

Google G23 build and you'll get a list a mile long of OEM part F23/H23/H22 hybrid build articles.

Here is the top one;
http://www.importtuner.com/tech/impp...e/viewall.html

 

I've been meaning to get on and check the importtuner build thread for a while haven't had the chance but i will be getting on soon. thank again ghost...