F22A1 build

[LPST]

OK I pulled my $800 hunk of crap into the shop and I pulled the motor apart and decided to just go crazy with it, I will be using the F22A1 block and head.

Starting with the head, I have stripped it down and checked it for squareness, going to magna flux it for cracks,"helicoil" the spark plug hole threads and give it to my buddy at the machine shop to mill it down about .010 and three angle valve job. I will then bring it back and finish the port and polish and lapping the valves and assembly.

Parts list:
"ATM"

Bisimoto 2.0 cam
Bisimoto cam gear
JIS valves
3angle valve job w/ P&P on intake and exhaust side
P&P on intake manifold
68mm throttle body (may change to 70mm)
Top secret One off custom cold air intake( no it's not what your thinking and it doesn't even look like one lol )
Bisimoto header
2.5" free flowing exaust ( back pressure will be set using a custom baffle that will fit between the header and exhaust piping )

I will post photos soon and continue as I get jobs accomplished. Stay tuned for the block information as well.

Thanks! -Will

[deevergote]

If the spark plug threads aren't damaged, you don't need to do anything to them. Helicoil is not a good solution to fixing damaged plug threads. Time Serts would be a much better option... but only if there's damage to repair. If they're not damaged, it's not a weak point that needs to be addressed.

I would avoid Bisimoto at all costs. In the last few months, I've known three people to get camshafts that were severely out of spec... and all attempts to contact Bisimoto about the issue went ignored.
The Bisimoto header, sadly, is still one of the best things available... but build quality and fitment are often poor, and the things leak like nobody's business. I'd rather add a larger merge collector to a generic header, such as DC Sports... or add an F22A flange to a quality H22A header.

Everything else sounds good. Though I'm a bit confused about your exhaust baffle... back pressure? You don't want back pressure. You want flow velocity.

[LPST]

Thanks for the input! I'm very new to these motors so I'm still learning what works on them and what doesn't. The Helicoil I'm talking about really isn't the brand helical thread fix like you buy at auto parts places that just what I used to call it, sorry for the confusion, I'm also getting close to 40y/o and I don't know the new lingo yet! its just cutting larger holes and replacing with a stainless or ti threading to strengthen it but mando (my machine shop buddy) said that its pointless on this head so we aren't doing it, its something we did back in the day to the old aluminum bowtie heads to keep from spitting plugs out of the head. as for the bisimoto stuff, mando said the same thing! so I kinda left him in charge of it, he said to go with the F22A6 cam and have it reground, still using the JIS valves but not sure what springs to use now... he also said P&P won't help, only porting, he said a polish will cause galling in these motors. as for the back pressure, yes it is flow you want but you do need some back pressure or you will burn exhaust valves up but you don't want much, the baffle is a ring the fits between the header and down pipe like a fiber ring gasket only is smooth inside with the inside diameter needed for .15-.25psi BP but i may not use it at all, it was just a thought. If any one has any pointers I'm all ears!

[sonikaccord]

Yep. I haven't seen anyone here blow a spark plug out of the head yet...that would be a pretty impressive sight, honestly.

Galling? Not sure about that one. Polish the exhaust ports and leaving the intake ports slightly rough is the general consensus. I don't know fluid dynamics but it's something about laminar flow.

It's not backpressure you want, it's scavenging. You want the exhaust pulses running in a train, pulling each other along essentially.

[LPST]

Yep. I haven't seen anyone here blow a spark plug out of the head yet...that would be a pretty impressive sight, honestly.

Galling? Not sure about that one. Polish the exhaust ports and leaving the intake ports slightly rough is the general consensus. I don't know fluid dynamics but it's something about laminar flow.

It's not backpressure you want, it's scavenging. You want the exhaust pulses running in a train, pulling each other along essentially.

Yeah he said it causes the plugs to foul, maybe I misunderstood him I'll ask him next time I'm over there.

I'm not sure I understand the exhaust very much I'll have to research it a bit, I usually don't go this far into a build on my own, first one since my dad passed last year. And I've only done mild engine work on my Nissans.

I really appreciate all the info you guys are giving me. Thank you.

[LPST]

So I'm having some trouble finding valve springs somewhere other than Bisi, i can get stock ones but thats not gonna cut it. Mando knows a a couple guys at Honda Racing so he's gonna call and see if they can source some parts for me. and I'm still looking for a cam, does no one make a new cam for this motor? I guess i have to send this one out to be reground so i was thinking Delta or Web, has anyone had bad experience with these companies? None of the places I get my parts through seem to have access to many Honda parts (except civic, everyone has stuff for those!) its kinda nice to have a challenge again. In the meantime I'm going to finish pulling the motor, and get these HoR front hubs and brakes replaced and extended lug bolts in and hopefully replace all the bushings while I'm at it. Then since its an auto I'm gonna try and hunt down an H23 5spd to swap in here and get the bay ready for the motor to go in.

[LPST]

Also, if anyone reading needs stock parts from the interior, I'm tossing everything but the dash, black & grey. FREE no shipping, local pick up, Bakersfield ca.

[wagon-r]

I had a good experience with web cams. They reground the camshaft in my F22A.

I used bisi valve springs. I haven't heard of any problems with these.

[LPST]

I had a good experience with web cams. They reground the camshaft in my F22A.

I used bisi valve springs. I haven't heard of any problems with these.

I tried calling web multiple times today but the line was busy, and when I called bisi the number was no longer in service, do you know if other valve springs (say H22) fit these motors? i find about every other motor but F22A, I'm using the search a lot, but I usually end up reading some awesome post about something else :off topic: and get lost quickly... well worth it, learning wile I wait lol.

[Rilas]

The valve springs you'll most likely have to get from Bisimoto. There was another company that made some beehive springs. But they went out of business years ago.

[deevergote]

I found these:
http://www.importparts.com/supertech...a-f22-a-b-16v/

There's no mention of F22A applications on the Supertech website, so if those are legit, they may be old stock.

[wagon-r]

The F22A6 springs are a little stiffer than the F22A1. I measured the valve lift on my F22A6 cam at 0.365", so if you don't go too crazy on the valve lift and don't run the engine at too high an rpm, these might work OK. At least better than the F22A1 springs.

[dj_ender]

You can still get valve springs from Bisimoto.

[LPST]

I found these:
http://www.importparts.com/supertech...a-f22-a-b-16v/

There's no mention of F22A applications on the Supertech website, so if those are legit, they may be old stock.

Your awesome, ordered them today. Thank you! Now to get the valves and send off the cam, just not sure where to yet.

[deevergote]

You can still get valve springs from Bisimoto.

I'd be afraid he'd send stock springs. Like he does with his camshafts.