K24 crank in a H22A4?

[kc8enb07]

well the guy is buying my H22A4 night to do the K24 crank swap. anyone happen to have one from an K24A4? might have a buyer for you.

then my spare crank (H22A4) and M2F4 go up for sale after the H22 is gone

[4GAccordH22]

I know a guy that has an H22 with the K24 crank. It is a BEAST!, but by no means is his a street motor. N/A over 200hp and I think around 190ft/lb. And it's in an EG hatch.

[98vtec]

last i heard was the crank and block were at the machine shop. He is still running then h23vtec as of right now.

[bagoon316]

Are you Blake, the ECTune guy? Ive seen/heard your name on FLAccords with ProjectTeg and someone else.

[98vtec]

that would be me.

[quickangel93]

ok im going to attept to do this, only problem is, i dont know what rods and pistons to go with.

i got a h22a (it doesnt say anything else).

i got a k24a4 crank tho.

i need to pistons to clear the head, but i also gotta make sure its reliable for boost. so ill need forged rods and pistons.

can anyone help

[GhostAccord]

Possible solutions to running a 99mm crank

No.1
H22A block = 219.5mm deck height
K24A4 Crank = 99mm stroke
Forged custom H22 Pistons = 87mm bore, 29mm compression height, 0cc dish
Con Rods = K20 138mm
You would end up with approx. 9.45:1 compression ratio.

No.2
H22A block = 219.5mm deck height
K24A4 Crank = 99mm stroke
Forged H22 Pistons = 87mm bore ,31mm compression height, 0cc dish
Con Rods = custom length 137mm rods
You would end up with approx. 9.2:1 compression ratio.

The above numbers are just a crude calculation from my virtual engine software.

Your Best bet.........
I'm sure this isn't the first time someone has tried a 99mm-100mm H22 build. I would suggest contacting a place like Race Engineering, Bisimoto Engineering or another reputable engine builder to see if they can find the right setup for what you are trying to do.

Last time I checked it doesn't cost you anythign to ask an engine machine shop for a quote on build parts. They are the ones that should be able to come up with all the right stuff if you give them exactly what your working with.

Cheers

And good luck

[quickangel93]

Possible solutions to running a 99mm crank

No.1
H22A block = 219.5mm deck height
K24A4 Crank = 99mm stroke
Forged custom H22 Pistons = 87mm bore, 29mm compression height, 0cc dish
Con Rods = K20 138mm
You would end up with approx. 9.45:1 compression ratio.

No.2
H22A block = 219.5mm deck height
K24A4 Crank = 99mm stroke
Forged H22 Pistons = 87mm bore ,31mm compression height, 0cc dish
Con Rods = custom length 137mm rods
You would end up with approx. 9.2:1 compression ratio.

The above numbers are just a crude calculation from my virtual engine software.

Your Best bet.........
I'm sure this isn't the first time someone has tried a 99mm-100mm H22 build. I would suggest contacting a place like Race Engineering, Bisimoto Engineering or another reputable engine builder to see if they can find the right setup for what you are trying to do.

Last time I checked it doesn't cost you anythign to ask an engine machine shop for a quote on build parts. They are the ones that should be able to come up with all the right stuff if you give them exactly what your working with.

Cheers

And good luck

well i found out today that i could fit the k24a4 crank in the h22 by having a local machine shop cut the main journals on the crank 5mm to get it to fit. that thing im worried about is the piston hitting the head

[gloryaccordy]

well i found out today that i could fit the k24a4 crank in the h22 by having a local machine shop cut the main journals on the crank 5mm to get it to fit. that thing im worried about is the piston hitting the head

H23 pistons

[trah]

h22 rods work you just have to cut them. clearance is not that bad just use a custom headgasket.

[GhostAccord]

h22 rods work you just have to cut them. clearance is not that bad just use a custom headgasket.

Are you absolutely sure that 143mm rods with a 99mm stroke and 31mm compression height pistons will fit into a block with a deck height of 219.5mm?

If you have actually done this build then you would know. If you have not physically put an H22 rod & K24 crank in an H22. How did you come up with the H22 rod as a fit?

Here are my rod length calculations.

Crank Throw = 49.5mm (1.948")
Connecting Rod Length = Z
Piston Compression height = 31mm (1.220")
Deck Clearance = -0.152mm (-0.006")
Deck Height = 219.5mm (8.642")



CT + CRL + PCH + DC = DH

49.5mm + Z (Rod length) + 31mm + -0.152mm = 219.5

Z (Rod length) =139.15mm

You can adjust any of these numbers to suit what you are looking for but it will require custom adjustments to those components. These measurements, - the k24 crank throw, are those of OEM H22 specs.

If my math is F'd up someone please correct it.

[trah]

Are you absolutely sure that 143mm rods with a 99mm stroke and 31mm compression height pistons will fit into a block with a deck height of 219.5mm?

If you have actually done this build then you would know. If you have not physically put an H22 rod & K24 crank in an H22. How did you come up with the H22 rod as a fit?

Here are my rod length calculations.

Crank Throw = 49.5mm (1.948")
Connecting Rod Length = Z
Piston Compression height = 31mm (1.220")
Deck Clearance = -0.152mm (-0.006")
Deck Height = 219.5mm (8.642")



CT + CRL + PCH + DC = DH

49.5mm + Z (Rod length) + 31mm + -0.152mm = 219.5

Z (Rod length) =139.15mm

You can adjust any of these numbers to suit what you are looking for but it will require custom adjustments to those components. These measurements, - the k24 crank throw, are those of OEM H22 specs.

If my math is F'd up someone please correct it.

lol your right i was thinking about the deck height of the f20c. Use the k20a rods. then it should be exactly 139mm from my calculations.

[quickangel93]

how about

H22A block = 219.5mm deck height
K24A4 Crank = 99mm stroke
H23 Pistons = 87mm bore ,30mm compression height
K20 Rods = 138mm rods
You would end up with approx. what?

[bagoon316]

you are 1.5mm below the deck still, since h23's are 30.5 not 30mm. you need 139.5mm rods to be even. or h22 pistons at 31mm and 139mm rods.

are the mains and journals the same for both? h22a4 and k24? also what about BE diam for the rod?

[quickangel93]

you are 2mm below the deck still, you need 140mm rods to be even. or h22 pistons at 31mm and 139mm rods.

are the mains and journals the same for both? h22a4 and k24? also what about BE diam for the rod?

do we have to be even with the deck? if not i could see if some machine shop in my area could add more metal on the piston.