When i dyno'd i had the set but my exhaust cam broke not to long ago so now i have the type s exhaust cam in, i have a very shitty video of the car pulling through 1st and 2nd if you want to see it rev to 9k

 

how did it break, im about to run supertech springs and the same cams and now i dont know if i should

 

The cam cap was lose at the spot it broke we think that's what did it but cant be positive.

 

hay can someone please direct me to a parts list and or directions for the f20b swap for my 97 accord ex coupe i just want to make sure i have the parts and something to read and guild me through before i start the build that be nice thanks

 

Hey guys, Im about to get an f20b, quick question, do they have a stock oil cooler?

Also when running an Ac compressor from an h22, will my stock eg ac lines bolt into it or will i need to get a full prelude condensor and lines?

 

they dont have the water cooler around the oil filter housing like h22,

 

Hi to all. Firstly, dose any one know the stock bore of a F20B throttle body? I have a CF4 Accord, auto(for now) and wanting to know some easy bolt on mods. Has great top end alredy but getting there takes soooo long. Maby a B18C5 Throttle body and Headers? Not sure. Help!!! Also, I know the auto comes detuned (good for 180 Hp) If i were to swap the cpu to a manual 1 would that give me the stock 197 hp. Cheers, Mike

 

If the motor were attached to a manual tranny from the factory it wouldnt take that long for you to see the top end (you can blame the torque converter and the internals of the automatic transmission for that)

Also the small 56-58mm TB it has in auto trim definitely does it (its somewhere in that range) Now the manual trans TB is 62mm which is the same as the ITR TB (they use the same gasket as well) Remember you'd have to either have to port-match your upper plenum for it, or use the upper plenum from the manual version. You can use an H22-based header (I think they actually offer a header for your specific chassis overseas because maybe your chassis has different bracketry but I could be over-analyzing it)

The ecu does not compute the entire hp rating difference. If you havent seen it in this FAQ, the cams your motor has have H22 measurements. The manual trans have cams from the Type S as well as supporting valvetrain (has a high peak HP, more duration and lift) The ecu likely has more aggressive fuel and ignition maps, a higher rev limit to fully capitalize on the extra rpms of the cams and the larger TB feeding more air. That should make up the difference

 

If i were to order like 10 timing belts or head-gaskets for the f20b would people be interested if they were priced cheaper shipped then autodynamics?

 

I've had several requests sent to my inbox for such items I can PM those names to you if you'd like to ask them....

 

Cool, thanks heaps! please excuse my ignorance, but what is a plenum? also, i just got my hands on a complete intake manifold off an h22. havent measured the tb yet, but am wonderind if swapping out the tb, rail and injectors will help? or would i just be better off finding a type s head n box. sorry 1 more, will it be safe to just swap with a manual computer on an auto? Or is there no point?

Thanks guys, only been a member for 3 days n have just been reading this 1 thread, every thing i need to know is all here. cheers, mike

 

Look at your manifold and notice how it comes in 3 pieces. The top piece which your TB is attached to is your plenum. The H22 uses a different type of Idle Air Control Valve (the Euro R/Type R is different and looks similar to yours with the same plug but different bolt pattern), the TB would be smaller than that of the manual F20B (60mm) unless it were a Type S, in which case it would be the same size (62mm). There are differences in injector flow rates, and although I know the F20B to have 310cc, the H22 injectors range from 290-345cc depending on chassis and year. The Type S head isnt much difference other than the intake vavles and head gasket used and will probably cost you a leg. You can simply swap out the cams, upper plenum, TB, and valve springs and it would be just as strong (the H22 motors have 35mm intake valves versus 34mm in the F20B) If you were to use any H22 head you have to be careful because of this (the F20B valve reliefs on the intake side of the pistons arent as deep as those on a H22 piston from what I remember seeing)

I have no idea how it is on your chassis, but the manual ECU wouldnt do you any good if the auto ECU controls your shift solenoids. But I woudnt think you could use it anyway (auto trannies have limitations and if you have a separate box that controls the shift solenoids you wouldnt be able to benefit from it) Try asking around your area to see what you could do about that

 

Yes. Pm me if you get ahold of some.

 

if you'll post to uk i'd be interested in a HG

 

Did some research on the F20B Manual and Auto comparing cam part #'s


Euro R/Type S cams are indeed in the Manual SIRT F20B

Manual F20B and Auto both share same valve sizes... exhaust P13 H22



SIRT Manual F20B
Intake Cam 14111-PCB-000
Exhaust Cam 14121-P5P-J00

Intake Valve 14711-PCB-000
Exhaust Valve 14721-P13-000

SIR Auto F20B
Intake Cam 14111-PCB-900
Exhaust Cam 14121-P5M-000

Intake Valve 14711-PCB-000
Exhaust Valve 14721-P13-000

Accord Wagon SIRT H23AVtec 2WD
Intake Cam 14111-PCB-900
Exhaust Cam 14121-P5M-000

Accord Wagon SIRT H23AVtec 4WD
Intake Cam 14111-PCB-900
Exhaust Cam 14121-P5M-000

Euro R
Intake Cam 14111-PCB-000
Exhaust Cam 14121-P5P-J00

BB6 SIR Manual
Intake Cam 14111-P5M-000
Exhaust Cam 14121-P5M-000

BB6 SIR Auto
Intake Cam 14111-P5M-000
Exhaust Cam 14121-P5M-000

BB4 SI Vtec 5 spd
Intake Cam 14111-P13-000
Exhaust Cam 14121-P13-000

BB4 SI Vtec Auto
Intake Cam 14111-P13-000
Exhaust Cam 14121-P13-000

 

I bought a F20B head today of CL for cheap... Owner bought it as manual swap and came with the T2T4 and spun a bearing in the bottom... I mic'd the cams... they are blue tint.

PCB HF-1 1997 Head

Vtec Lobe:

Intake: 1.467"
Exhaust: 1.445"

Anyone with Manual Version mic'd them? Seems like Vtec Lobe is same as Euro R/Type S

I bought it primarly for Valve Springs/Retainers/Cams to swap in a H23AVtec Blue Top that I am ordering soon... which only comes with jdm h22 cams.

The only questionable item was the Throttle Body I mic'd it and was getting about 58/59mm 2.310" on inside of TB near inlet of TB. It was not on the Intake Manifold was seperate however has map on it and no FITV and seems to be the same casting as to what should be on it, no markings to speak of. But cams mic'd out must be a manual...

 

any special installation required if I install the aftermarket camshaft on F20B DOHC head? I only know the valve size is different with H22A

 

f20b uses f23 rod bolts https://honda-tech.com/forums/showthread.php?t=2943838] not sure if this is on here

 

Your are correct according the EURO HPC part #'s are same

F20B Rod Bolt Part #
13204-P8A-A01

F23
13204-P8A-A01

 

f20b rods and pistons group buy! https://honda-tech.com/forums/hybrid-engine-swaps-18/bisimoto-f20b-piston-rod-group-buy-2952584/

 

Which ecu do you guys run with a stock F20b Manual?

 

Just wanted to post up that we just got an F20b engine in and we have been trying to get an alternative timing belt for the PCB OEM belt for a while....but I just took off the timing belt covers and I was trying to figure out what the actual difference was to warrant another tooth on the timing belt. This is what I found:

- Crank pulley timing belt gear is stamped P13 and has 21 teeth just like the H22
- Water pump is stamped "26 tooth P13" just like the H22
- Cam gears are stamped P13
- Tensioner pulley is about 54.5mm diam just like the h22
- Hydraulic tensioner

So here is the kicker!!!! I looked at the printing on the timing belt and it is a "14400-P13-004"...This engine is straight off the boat. So this version of the F20b has an H22 155 tooth belt on it. Anyone seen this before?

 

i'm running a h22 belt on my f20b, manual tensioner kit though

 

Yeah as most people do which makes it pretty tight. The weird thing is that this F20b is bone stock with the hydraulic tensioner and all still on it from the factory with a P13 belt. Very odd!

 

your not kidding there lol