It is time to rebuild my F22B1 OBD1 engine. I am finding there are not many high performance options for the rotating assemblies. If anyone knows of any sites that I can find high performance cranks, rods and pistons for the F22B1 I'd appreciate it. If there isn't anything, what H series parts can I use? 50MM mains are the same as the H22 main journals. Do I destroke it? I'm at a loss to get naturally aspirated high performance out of this engine.

 

The stock crank is fine as long as it's in good shape.There are forged rods readily available on eBay. For pistons I'm sure something for the platform is still available somewhere. If not there are other options like custom slugs or there are some K20/DSM pistons that work.

You're not gonna get much naturally aspirated performance out of it regardless of what you do. The bottom end has geometry that will support power and torque but the head is just abysmal. It flows extremely poorly. I had a built 11.5:1 F22B1 many years ago and even with boost it failed to make any kind of meaningful power past 6000 rpm.

The most NA power I've seen out of a full SOHC was a built F23 bottom end with a built F22A head that still only put down about 180whp. The F22A head flows similarly to an H series but it's hard to get enough cam in it to take advantage of it. For boosted applications any VTEC H series head will completely obliterate any of the single cams in terms of performance. Some people opt to drop an H series head on an F series bottom end and create a(gag) "G22" abomination.

There's plenty of information out there for you to search. These engines have been around a long time and there's a lot of well documented builds. Search and you will find. Look hard enough and you will come to the conclusion that it's more economical to just do an engine swap for NA performance.

 

Thanks. I really appreciate the information. I’ll do some more reading as suggested.

 

I bought all of my F22B internals from Race Engineering, Great prices and even better customer service. If they don't list what you are looking for on their site, give them a call/email. They set me up with all the parts to fit my needs. Then again that was 10 years ago.

I went with the stock F22B/H23A crank, Darton M.I.D sleeves, a set of Crower H22 I-Beam rods and custom 89mm Wiseco pistons. They shortened the compression height (wrist pin height) on the pistons to fit the longer rods on the stock stroke crank and maintain the stock piston to deck height and a 11.5:1 compression.


by GhostAccord, on Flickr

 

I appreciate the info Ghost. Is there a good VTEC SOHC head that can run on thee F22B1 block?
I’ve been in contact with RE and Darton. I’ll get it worked out.

 

I already answered that question. Read my above post.

The F22Ax heads are superior to the F22B1/F23A VTEC heads, even without VTEC. VTEC on the aforementioned heads is economy VTEC anyway. It basically only exists to open the second intake valve at a certain RPM. It's much, much different than a DOHC VTEC where it switches to a much more aggressive camshaft profile.

 

I appreciate it. Thank you.