EJ8Bramaged

I'm doing the swap, but can't seem to find some info:

Can I use JDM H22A swap axles (w/ intermediate shaft) to keep my spindles?
Can I use H22A timing belt?
Which motor mounts do I use from Hasports?
Will my traction bars will work with the new engine?

Doesn't seem like there's much information out there for this swap yet it's one of the best platforms for road racing...

93f20bdelsol

The f20b swap is exactly the same as a h22 swap down to the t. I've had both in my del sol and currently have the f20b in it now. Your gonna need motor, tranny, h22 swap mounts, I'm running integra axles, prelude shift linkage and shifter box, swap harness unless you make your own like I did but I'm not sure what it requires considering your car is already obd2 a dizzy depending on wether you wanna go internal coil or external the dizzy that will come with the motor will be internal which i believe should plug right in but again not sure cause yours is obd 2. The dizzy on the f20b will require wiring of the tach signal also. But all in all this swap is the same as swapping a h22. I did nothing different pulling my h22 and dropping in the f20 besides the tach wire.

EJ8Bramaged

Thanks for the info. I found swap axles that are made for using an H22 in my EJ8, but wasn't sure about the fitment though rather than using the Integra axles. The engine comes with a full harness so if all I have to do is wire the tach, then this seems to be an easy swap.
I was going to do some internals prior to install which is where things get weird. A friend of mine (an accord fanatic) said that after market internals would be as follows from what HE HEARD:
F series pistons
B series rods
B series crank
H series for valve train

Is this correct? I was looking at Skunk Pro 2 cams w/ Pro Series springs/retainers/valves for the H22 for the head work. Also, which header works? SH or Non-SH? Or are you using the 92-96 H22A1(2) intake mani & exhaust?

BoOoM

Bump for F20B! I too have an F20B in my EK though. I'd like to build up the motor and all this information will be very benificial.

Korman

I was hoping to do the F20B swap as well. The price is right (less than a thousand bucks), Got type-R power but more torque, but revs better than an H22.

Oh, and it has a sexy blue valvecover.

BoOoM

I've noticed this forum has very little feed back on F20B's... Most just a buncha h22 junkies... Dissapointing.

EJ8Bramaged

I'm doing it due to the LSD tranny combo is about $1700 + $400 for mounts + $285 for modified axles and about $250 in misc things needed and I'm back on track for Road Racing and AutoX.

mooze

there is a complete f20b faq

EJ8Bramaged

where?

BoOoM

I have seen the FAQ. It's not very helpful.

https://honda-tech.com/forums/showth...light=f20b+faq

judgeDredd

the FAQ is way helpful if you buy your mounts from hasport they come with instructions that tell you everything you will need. You can even get the instructions off there website to give u an idea of whats involved, not every mount kit uses the same axles.

93f20bdelsol

Um as far as the valve train I've heard it's the same as h22 and as far as I can tell I is, it does have the same rod journal size as a b16 but I'm not sure if the stroke is the same, as far as pistons i have no idea although I wouldn't mess with pistons or rods unless your looking for major power. The f20b already has 11:1 compression an comes stock with beefed up rods. So IMO swapping any kinda pistons or rods would be a waste of money. If you built th head up you can rev the crap outta this motor the bottom end can handle alot the head is the only limiting factor. You can rev it stock I've read going over 8500 you risk valve float my rev limiter is set at 8200 to be safe and it makes power all the way up there. Running the h22 basemap on a p28 with a vafc to turn my vtec down to 5200 and a garbage accord tranny I pull gsr hatches coupes crxes all day no problem. Soon I'm getting the h22 tranny for better ratios and putting In my lightweight h22 flywheel, should be fun.

93f20bdelsol

Oh and the header I'm using is off the h22a4 I had and the intake Mani is also the same as that motor also. I believe this is also the same as the a1 as far as the sh I haven't messed with anything from that motor.

EJ8Bramaged

Well, I'm planning on making some higher NA power with this motor to road race. Turbos just bring too many headaches in these races for a "weekend warrior". lol

I want to keep the T2T4 tranny (due to LSD) and run the edelbrock intake manifold, 4-1 header as well as an upgraded cooling system. My goal is to hit about 255-280 whp. I just need to stay under 300 whp to stay in certain classes with the 2.0L platform. This is why I need to find the internal components as I want to run even higher compression ratio (11.9:1 to 12.5:1) as well as running H beam rods. If I can shorted the stroke just slightly and rap out the engine to 9300 w/ VTEC engagement at about 6100. Any help would be greatly appreciated. THANKS AGAIN!

judgeDredd

Edelbrock doesn't make and IM for the f/h series and to build an N/A f20b the internals would need to be custom made. leave vtec engagement up to the tuner to figure out where the best place is for it to engage. if your interested in building 1 n/a there is a member on here who has, Pm him "jr_deleon" from the post ive read by him he seems very knowledgeable.

93f20bdelsol

Yeah I would listen to that dude and pm the jr guy. Cause as far as internals like pistons and rods you gonna go through a huge headache tryin to find em. I've looked for em and haven't found crap and haven't found info besides the rod journal size crank journal size ect. you could build the head up and I know you can rev the bottom end of the motor to 9k easily. From everyhing I've read the only limiting factor is valve float and with a built head with beefy valve springs and a good reving cam you will be able to rev this and make power all the way up there. If your tryin to shorten the stroke I believe that would throw out the balance of the motor. The crank journals and rod journals and stroke are all set up balanced in a certain way if I'm not mistaken. Don't quote me on this but it is deffently something I would look into before throwing money into the internals and ending up with a crappy running motor. As far as the intake mani anything you can run on the h22 will run on this and same with headers. I bought my headers for the h22a4 and they fit the same as the stock mani did, and my motor has the h22a4 intake mani on it also so if you bought a skunk 2 or some other brand for the h22a4 it would fit same as stock.

93f20bdelsol

Oh and if I had a t2t4 tranny I would keep it too but I didn't have all that money for the tranny and motor so I got the motor and threw a accord tranny from a f22 on there for now so I could just get the car going. The stock f20b tranny has sick ratios if your goin all motor. I'm goin with the h22a1 tranny cause it's got decent ratios for now and when I go boosted I will benefit from the slightly longer ratios.

EJ8Bramaged

Well, by the sound of it, I'm going to build up the head until I can get more information on the block. I'll see how much power I can make off the cams, valves, springs, IM, header and chipped ECU. If this works, I may just stick with that for now.

I have still not gotten an answer about the timing belt? Which one do I have to get for it as the H22 is 1 off.

judgeDredd

you can use the h22 timing blet its a little tight specially with an auto to manual tensioner conversion. im using an h22 timing belt on my f20b and have for about 2 years now.

judgeDredd

Here my setup and dyno numbers to give you an idea

Setup
F20b stock bottom end and valve train
Brian Crower stage 2 cams
URG cam gears
Hytech replica header
Hondata IMG
Performance products 68mm throttle body
8lb Fidanza flywheel
Act sprung 6 puck with x-heavy duty pressure plate.

locash tuned using neptune

base numbers before tune
138hp 127ftlb

Numbers after tune All motor
180hp 142ftlbs

EJ8Bramaged

Thanks for the info. Why do they quote the motor at 200hp (flywheel) but with all that I figured you would be right at 200... At what RPM did you hit your max HP and TQ?

Are you running stock IM & Header?

judgeDredd

hit peak HP an 7500
peak tq at 5600

im using an h22 Im with the butterfly's removed and a hytech replica header. when i dynod the car it was with a crush bent 2.5" exhaust with a clogged cat, i recently got around to replaced the exhaust system with 2.5" mandrel bent and no cat and fixed a couple more things that were off. the engine fells way better then it ever has. i plan to re-tune 1 day and expect better numbers. i have my graph if you would like me to post it

EJ8Bramaged

That could help.... This may determine going with the Skunk2 Pro 3 series cams... All out race cams really. I'm trying to find a more aggressive IM than Skunk's though. I had the edelbrock on my old B series and it produces a nice increase. Has anyone bored the F20B Manifold in use with a 70mm or 72mm TB? I'm tempted to run ITB if the power increase is worth it.

judgeDredd

judgeDredd

the bolder lines are nitrous numbers