H23 Intake Mani onto F22b1 head[In progress]

[Srfnscubamunkey]

Update
July 4, 09

Please any one that does this take my responses, ideas, and directions with a grain of salt.

Looking back on this 4 years later, I cant believe I said, or did half of these things, and I sounded like an idiot, this thread should probably be deleted.

But i will leave that to the admins, if they feel it is appropriate

My first write up, take it easy, I will make typos, and I apologize for that.

Well this thread as stated is about putting a H23 dual runner intake on to a F22B1 (vtec) head. It would probably go on to a non vtec head substantially easier.

I am also going to assume that you can get your original mani off your self; I will offer these few tips,
Unbolt bottom nuts from under the car.
When removing the mani lightly tap it with a block of wood and a hammer to break it loose.


picture of original off (we all know what the stockie looks like?..)

first off leave the vtec solenoid on the head, also remember to clean the mating surfaces on all parts before assembly.

Now slide the mani on, you will notice that the passenger side top portion of the mani comes into contact with the vtec solenoid. Take note of how much material you should take off, then take it to a grinder, saw, dremel, or what ever method you chose I used a saw and dremel.

in that picture you can see where I started to remove material, much more than pictured will have to be removed.

After I got the mani bolted up I decided to make a block off plate for the EGR valve because it would interfere with the fuel rail.


you can see the block off plate in the bottom of that photo, also notice that the injectors are in; this is where I started to plan out the fuel system modifications.

The fuel system had to major mods for this mani to work:

First of all the fuel line had to be extended to reach the other side of the mani, with no sharp bends or contacting any sharp objects, I used 3 feet of fuel injection hose from AutoZone and cut off the hose ends off of the old hose.


notice the fuel line on the bottom right

secondly the fuel system had to be modded in such a way that my f22 fuel rail would bolt up to the h23 studs also had to be done backwards. Well the studs on the h23 mani are spaced 4.5 inches apart, where as the f22 studs are spaced 3 inches apart, so set up the new holes, marked, punched, then drilled. Then it was time to blow it out (don?t want any shavings in the fuel system, then test fit.

SUCSESS well kind of?.

The studs in the mani were to long?.? I was surprised and the studs on the f22 man were the wrong threads 12mm compared to 10mm, so I made some 3 inch studs out of some old bolts then cut to fit with dremel as I went. Also the fuel reg interfered with the driver side stud so it had to be trimmed. So now the fuel system is complete.

Now comes the cooling system:
I used the f22 hard pipe with the f23 thermostat housing, because the f22 housing has to mate with the head (water flows through it).

Well to make the thermostat fit you have to cut off one of its legs. Pic:

now here comes the trust part?.bolt the housing on to the mani, only one bolt will line up, if you?re good you can get two, with a lot more cutting/grinding. I went the one bolt method, no leaks yet, I will keep yall posted on that part.

The rest of the installation is cake, just like a normal intake installation, goes by the book here is a final pic of the two major modifications after installation:


if you have any more questions or pic requests just let me know and I will answer them, or post more pics just let me know


done (for now)

if this is hard to read im sorry, I may try to edit it later.

Enjoy

Threads that were started that may answer some of your questions:

http://accordinglydone.com/forum/sho...170#post174170 alot of good questions
http://www.accordinglydone.com/forum...ad.php?t=11394 related to civics

[M23Accord]

Very nice writeup, thankyou. BUT, you didnt say anything about the most important part....was it an improvement??? What did the butt dyno tell you and, IF you are getting more air in there, did you compensate the fuel mixture?

Just so you dont misunderstand me, I applaud your efforts and Im not criticizing...

[Srfnscubamunkey]

Quote:

Originally Posted by M23Accord:

Very nice writeup, thankyou. BUT, you didnt say anything about the most important part....was it an improvement??? What did the butt dyno tell you and, IF you are getting more air in there, did you compensate the fuel mixture?

Just so you dont misunderstand me, I applaud your efforts and Im not criticizing...

I dont mind constructive critisism.

I havnt really compisated for the extra air with extra fuel, i have used the vafc to give a little more fuel between 1k and 4k, because i believe all hondas run lean between those rpms.

Also i have felt an impressive improvement in the bottom end power, even though i have a bad injector, im gunna assume that once fix the injectors that ill make more power on the top end also. i want to add h22 injectors/ fuel rail.

Throttle response is the largest improvement WOT seems to happen at a lower throttle point lets say 3/4 throttle, but it dose not bog at full pedal depression, just gets louder and pulls maybe a little harder, this is where i think it needs to be tuned, i put my f22b1 ecu back on cuz the h23 ecu just wasnt working to great for me.

all in all the but dyno would say that i got a really good improvement on the bottom end, and will probaly be even better with all four injectors working properly, and a good tune, i want/need to get a wideband, but funds dont support it.

[whitecord]

so the h23 intake manifold bolted right on and the ports matched up?


or was there some modifications needed?

[M23Accord]

Dude, read the thread..

[Srfnscubamunkey]

Quote:

Originally Posted by whitecord:

so the h23 intake manifold bolted right on and the ports matched up?


or was there some modifications needed?

wow.

[whitecord]

looking at my f22b1 mani, the ports look much wider on the h23...

the ports werent talked about in the thread....hints the reason i asked....

[Srfnscubamunkey]

well the ports line up with no problem, same placement , same hight, the width is a little larger, i could have drimeled it but i dont do that to the ports of the head while its on the car, but thats th only diff. in alinement

also about the did i have to cut, or modify comment if you read you will learn much

[whitecord]

thats not what i was refering to...i should of been a little more clear...i was mostly talking about the ports

[Srfnscubamunkey]

Quote:

Originally Posted by whitecord:

thats not what i was refering to...i should of been a little more clear...i was mostly talking about the ports

o ok.....lol

yeah like i said the ports line up fine, its just that they are a little wider on the h23 mani which could be taken care of if you had your head off, but i didnt worry about it. also a little turbalance right before the combustion chamber would probaly help the fuel mixture mix with the incoming air charge

[#1accordfamily]

i wounder how this would work on a b2 head

[phatdoughnut]

Im gona go ahead and say that you can most likely use a jdm h22a fuel rail to make it work on your f22b1, why? acouple of reasons.

1. Jdm h22a fuels rails come out the oppisite end, allowing you to not have to extend your fuel line.
2. no one wants them
3. f22a fuel rails work on h22a manifolds, and f22a fuel rails work on h23 intake manifolds.. so an h22a fuel rail will work on your h23 intake manifold..

i put in progress, so we can work the kinks out of it and what not.

Also i think over on non-vtec.com there is a guy who sells intake mani gaskets similar to hondata ones for like 25 bucks or something.

good job other wise..

[Srfnscubamunkey]

Quote:

Originally Posted by #1accordfamily:

i wounder how this would work on a b2 head

i would assume it would bolt straight up, cuz i did my mock up on my spare b2 head but it has no vtec solinoid...lol, so bolting up should work

thank you juan, now i just need that fuel rail and new injectors....lol, and a fuel pressure reg, and a wideband, i hope i can finish it all before i get a new car....lol

[Jeremiah]

I have a set of f23 injectors if you want them.

[Srfnscubamunkey]

more pics added to main post

[f22b2dave]

how different are the ports, as in what direction is the overlap? no portmatch means possible fuel pooling, not to mention possibly a little too much turbulence, it may even keep some of the air out of the cylinder on an n/a app. props for the diy, but im weary of this.

[Jeremiah]

I don't think the the size in ports is going to be a good thing.

The h23 port is like this big... ( _ ) F port is like this... ( )

SO... the air is rushing in, and then SLAMMING into the wall, and then having to all cram together, a lil' turbulence is good... but how much this will pose I think would be detrimental.

But... that's just my guess.

If you want a better manifold, try the f23.

Talk to Schmuckingham.

I sent him mine, and he seems to think it'll help out quite a bit.

[Srfnscubamunkey]

they look a like maybe 3mm larger on each side of the port



i am now wanting to do the port matching, but im not worrying about it right now, my car feels much more quicker than it was so i feel its working fine, if and when i build my other f22 block, i may do it then.

[f22b2dave]

yikes, yeah thats in desperate need of a portmatch, im thinking a slight choke of the high rpm. does it feel faster down low or up high?

[Srfnscubamunkey]

well and update:

having to add water to the cooling system evey two dats, i believe it is coming from the hardpipe/therm conection, so im gunna attemot to relocate the therm housing some time soon, ill post pics and the such later

also what is the highest temp/ pressure in the system, im gunna buy the supplies by the foot