View Full Version : Possible to put a h22a dohc head on a h22 accord block?
As topic says.
Like i am just curious, is it possible to put like a prelude dohc vtec head (h22a) on a ~95 accord vti/vtis's h22 block (soch vtec).
And would this be viable.
Like accord manual vti's are fairly cheap now (<15k). But would it make much power dif, if possible?
Would the stock accord tranny handle the increased power?
Is it even worth thinking about it (accords are fairly heavy, accords dont have high performance parts on as stock [brakes etc]).
wynode
24-08-2003, 02:26 PM
The Accord Vti actually runs the F22 series block. so I doubt you could bolt up a H22 head onto it.
Also, pretty much all the H22 series engines are DOHC VTEC.
lol
:oops:
i dont know where the **** i got my info from.
It was stuck in my head that the accord had a economy tuned h22 with a sohc head.
oh well, there goes that idea :(
Not much point really even mucking around with head swaps when the H22A goes in reasonably easily. 99% sure the H22A head is completely wrong for the F22B1 anyway (or at the very least would require a lot of work)
That or a supercharger/turbo setup are the ways to go IMO
Jnr Teggy
25-08-2003, 07:16 PM
boost is the best for power:money
Calvo
25-08-2003, 07:17 PM
yeh the accord run an F22 series engine.
however u can drop in a H22A engine if u wish, i kno this is a very common conversion done to the accord in USA, this is of course if u want to keep ur accord N/A.
the H22A is a better engine to extract power from and all in all, has much more potential than a F22.
yep, easily
Not all that difficult either if you do a bit of research and do it right
Calvo
25-08-2003, 07:57 PM
ive been told its pretty much a straight swap with a jdm h22a engine. seein as they r RHD aswell it easier.
Yeh pretty much, just a bit of wiring and i think you need one prelude engine mount and maybe axles
Very simple as far as swaps go
Calvo
25-08-2003, 08:35 PM
yeh thats wat im lookin at rite now if i keep my accord, which i probably will. want to make a sleeper :D keep the looks nice and clean.
Jnr Teggy
25-08-2003, 10:46 PM
thats the way mate!
Calvo
25-08-2003, 11:11 PM
sure is :D
BMTDC2
07-09-2003, 07:57 PM
You dont want to waste your time with frank swaps with the H/F series... Obtain the full motor and gearbox to extract its full potential...
I use to own a 5th GEN Accord EXi, H22A conversion was done to it...
If anyone needs help ill be happy to shed light on it...
Currently working on Project BMTDC2
DC2 Chassis with a All motor H22A (using JUN internals)
wynode
07-09-2003, 07:58 PM
Currently working on Project BMTDC2
DC2 Chassis with a All motor H22A (using JUN internals)
Is this to be a drag or track car?
Calvo
08-09-2003, 09:37 PM
nice man. keep us informed :D
BMTDC2
09-09-2003, 02:00 AM
Currently working on Project BMTDC2
DC2 Chassis with a All motor H22A (using JUN internals)
Is this to be a drag or track car?
Most likely track, it would be a good all rounder on the street, circuit and drag...
wynode
09-09-2003, 10:22 AM
Is that an alloy block?, cause i've heard the increased weight of the H22 really upsets the balance of the car.
That's what i was thinking, the H22A is a much heavier engine than any B series and so I would've thought wouldn't be as suitable as a track car. Drag car, yes it'd be brilliant for it
BMTDC2
11-09-2003, 03:31 PM
That's what i was thinking, the H22A is a much heavier engine than any B series and so I would've thought wouldn't be as suitable as a track car. Drag car, yes it'd be brilliant for it
Depends on the weight distrubution....
The H22A is ~ 45kg heavier then the B series engine...
The engine mounts will be slightly modified to allow the motor to lean more towards the firewall which will shift most of the weight to the centre of the chassis. There is a difference between adding weight right at the nose of the car and weight at the centre of car.
Most of this additional weight will be made up for by using lighter parts such as carbon fibre hood..
one more chance
12-09-2003, 06:43 PM
the F22B engine shares closer comparisons to the H23 engine, as parts from the H23 and F22 are interchangable! as with upgrading a vtec head to a H23 can be done, this is also possible with the F22B but with mods though.....
BMTDC2
12-09-2003, 07:31 PM
the F22B engine shares closer comparisons to the H23 engine, as parts from the H23 and F22 are interchangable! as with upgrading a vtec head to a H23 can be done, this is also possible with the F22B but with mods though.....
Mating a H series head onto a F series block can be done but at the price it cost to do so will be a major put off for anyone who tries to do it...
stocky
18-10-2003, 02:20 PM
the F22B engine shares closer comparisons to the H23 engine, as parts from the H23 and F22 are interchangable! as with upgrading a vtec head to a H23 can be done, this is also possible with the F22B but with mods though.....
the h22 and h23 are same in dimension.
btw, an accord with a stock h22a is about same speed as a vti-r teg with same mods, e.g. catback
booget
18-10-2003, 07:25 PM
i have a fren with a H22a accord
its pretty quick
but in terms of potential the b-series motor i believe has more potential
then the H22A
beware if u see an accord with a vtec badge
its really H22A VTEC!!
hehehe
BMTDC2
20-10-2003, 09:44 PM
i have a fren with a H22a accord
its pretty quick
but in terms of potential the b-series motor i believe has more potential
then the H22A
beware if u see an accord with a vtec badge
its really H22A VTEC!!
hehehe
its not a silver one is it? :)
stocky
21-10-2003, 03:26 PM
i have a fren with a H22a accord
its pretty quick
but in terms of potential the b-series motor i believe has more potential
then the H22A
beware if u see an accord with a vtec badge
its really H22A VTEC!!
hehehe
its not a silver one is it? :)
How did ur h22a accord perform BMTDC2? Could it take out a vtir teg with mods? Type r? just wondering.
BMTDC2
22-10-2003, 02:20 AM
i was able to outrun DC5's and DC2 Type R's with exhaust and CAI...
There was one DC2 with some aggressive cams be even up till 2nd but 3rd gear they would pull away from me...
Dont want to get a big head or anything, but 2 out of 3 runs with a mildly modified sr20det s13, 1st 2nd was quite even but 3rd gear my car would start to pull in front by 2 car lengths...
Getting the launches right took me a while to get used to...
So really i guess it depends on the driver at the time as well...
booget
22-10-2003, 12:55 PM
hey its a navy blue colour
its got a banged up arse
hahahah
how would u know if the motor was H22A or H22A type S??
i
BMTDC2
22-10-2003, 07:40 PM
hey its a navy blue colour
its got a banged up arse
hahahah
how would u know if the motor was H22A or H22A type S??
i
the Type S 220HP motor has higher compression pistions and higher lift cams... From memory engine wise they look identical, this motor is also found in the Accord Euro R which had a red rocker cover. The intake of this motor is a single runner similar of that to a B16/B18CR for high rpm power...
I have seen H22Z in australia in the 2001 VTi-R Preludes, from memory the TYPE S computer code P5T OBD2 and the VTi-R is P5C i think...
It would be interesting to have a look at what the internals of the H22Z compared to the P13 H22A JDM and AUSDM...
My engine will be running the Euro R manifold... be interesting to find what the gains are for this manifold
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