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Old 11-29-2004, 10:44 AM   #1
Sam1am26
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Default ...G23 VTEC...(56K...Definitely Beware)

EDIT: Here is the semi-disappointing dyno... After a few fixes, a boost controller, and some more tuning I think the numbers will be alot more impressive...

214whp@7150rpms_____195wtq@4400rpms_____@ 6 PSI
Click the image to open in full size.
*Sorry for the shatty picture...

The Beginning:
Well it is getting closer to being complete so I decided it was time to start posting up some pics in case anyone was interested... As some of you know I spun the rod bearings in my H23 VTEC due to oil starvation and over-revving... So now I am taking my H22 head and putting it on an F23 block and boosting the hell out of it...

I got this F23a1 from a friend who has had it in his garage forever...
Click the image to open in full size.

This was the most recent pic I had of my H23 VTEC before I fooked it up...
Click the image to open in full size.

Hear are a few pics of the tear down...
Click the image to open in full size.

AEBS head studs that I will be re-using...
Click the image to open in full size.

Tranny coming off...
Click the image to open in full size.

I also looped my power steering lines this time around since I have been running with no belt for months...
Click the image to open in full size.

It looks a lot cleaner with no power steering, cruise control, and no windshield washer fluid reservoir...
Click the image to open in full size.

I haven't had a chance to weigh everything but I put it all in a bag and it has to weigh at least 20 lbs, and that doesn't even include the fluid you drain...
Click the image to open in full size.

Head came off in like 5 seconds just like Pirate said...
Click the image to open in full size.

This pic is supposed to show the block code, but you can't even see it cause the block is so worn...
Click the image to open in full size.

2.3L Iron sleeved...97mm Stroke... Mmmmm..... Click the image to open in full size.
Click the image to open in full size.

This is actually a picture of my H23 block with the F23 head gasket sitting on top just so you can see where the head isn't going to line up perfectly... Nothing a little Hondabond won't fix...
Click the image to open in full size.

This is a comparison of the H22 water pipe(top) and the F23 water pipe(bottom)... Pirate was lucky that an F22 water pipe fit perfectly for him but when using an H22 head there aren't any water pipes that will bolt up... So I am going to cut them both in half and connect them with a rubber hose, no biggie...
Click the image to open in full size.

This is a picture of the H22 alternator and AC brackets bolted to the F23 block... If you look at the alternator bracket you can see the it has 4 bolt holes while the F23 Bracket only had 3... However, it is interesting that when you bolt up the H22 Bracket there is a 4th hole that lines up perfectly but is not threaded because it was not intended to be using in an Accord... I could always tap the hole and use it but the three bolts will hold it just fine... But that just shows how similarly cast the F/H blocks were...
Click the image to open in full size.

And this is the motor half assembled...
Click the image to open in full size.

And the rear...
Click the image to open in full size.

So I just need to put the tranny on the new motor and drop it in... Then it is time for the turbo install and to get it tuned on the dyno... They are having a dyno day at Titan Motorsports on Dec. 4th that I was planning on going to, but by the looks of things now I'm not gonna make it... But that's ok, I need to take my time and do things right anyways... More pics to come as the project progresses...


Modified by Sam1am26 at 2:13 PM 6/15/2005


Modified by Sam1am26 at 2:13 PM 6/15/2005


Modified by Sam1am26 at 11:48 AM 6/19/2005
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Old 11-29-2004, 10:53 AM   #2
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Default Re: ...G23 VTEC...(56K...Definitely Beware) (Sam1am26)

I'm in love.
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Old 11-29-2004, 11:01 AM   #3
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Default Re: ...G23 VTEC...(56K...Definitely Beware) (Sam1am26)

WOW.

I wish I could see the all motor dyno but the turbo dyno will do I guess. Click the image to open in full size.
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Old 11-29-2004, 11:01 AM   #4
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Still blows my ****** mind how you can put a DOHC head on a SOHC motor, i guess i am just used to B and D series not getting along well. Cant wait for that turbo
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Old 11-29-2004, 11:30 AM   #5
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Default Re: ...G23 VTEC...(56K...Definitely Beware) (PirateMcFred)

Quote:
Originally Posted by PirateMcFred
Are you going to run the balance shaft belt? I guess with turbo you won't be starving for power. Wht are you going to do for the driver's side engine mount? Mod the stock one?

So, when is the swap?

Great project Click the image to open in full size. Click the image to open in full size.
Pirate
Yeah, like you said I won't be starving for power and I don't want the extra vibration... I'm still undecided on the mount... Will the prelude mount bracket bolt to the f23 block? If not I know you used an f22 mount bracket so I'll figure something out... The motor will hopefully be in by this weekend... Click the image to open in full size.
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Old 11-29-2004, 11:32 AM   #6
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Default Re: ...G23 VTEC...(56K...Definitely Beware) (Sam1am26)

Nice, dude!!!

I really wanted to see a dyno of a NA G22/3 though Click the image to open in full size. Click the image to open in full size.
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Old 11-29-2004, 11:45 AM   #7
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Default Re: ...G23 VTEC...(56K...Definitely Beware) (AndyD)

Awesome, I've been waiting for you to post up some pics of this project Click the image to open in full size.

So you left the block completely stock?

What do expect the compression ratio to be?

Somewhere around 9-9.3:1?

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Old 11-29-2004, 11:52 AM   #8
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Default Re: ...G23 VTEC...(56K...Definitely Beware) (AndyD)

looks like its gonna be a boost monster Click the image to open in full size.

im glad everyone is doing this setup now. i just got my hands on an f22a7 sohc nonvtec. i plan on putting an h23 head on it and some bo0ost

cant wait to see the dyno Click the image to open in full size.
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Old 11-29-2004, 12:35 PM   #9
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Default Re: ...G23 VTEC...(56K...Definitely Beware) (Deckedlude)

so how does this compare to an H23VTEC (in both NA and FI trim)?
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Old 11-29-2004, 12:55 PM   #10
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Default Re: ...G23 VTEC...(56K...Definitely Beware) (uncle)

Quote:
Originally Posted by uncle
WOW.

I wish I could see the all motor dyno but the turbo dyno will do I guess. Click the image to open in full size.
yeah man get an all motor dyno then go boost Click the image to open in full size.

great job on the hybrid, i see a new trend starting....will this hybrid have the same reving problems as the h23/vtec since it has even more stroke?
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Old 11-29-2004, 01:09 PM   #11
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Default Re: ...G23 VTEC...(56K...Definitely Beware) (hOndafienD 04)

awesome setup man.

I can't wait for some dyno numbers.
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Old 11-29-2004, 01:42 PM   #12
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Default Re: ...G23 VTEC...(56K...Definitely Beware)

Quote:
Originally Posted by SKDRCR
So you left the block completely stock?
What do expect the compression ratio to be?
Somewhere around 9-9.3:1?
Yeah I left the block completely stock... Compression is about 8.6:1, which is super low but super boost friendly... And that is another reason there won't be an all motor dyno, because it would be weak with this c/r...

Quote:
Originally Posted by monalisa overdrive
so how does this compare to an H23VTEC (in both NA and FI trim)?
Well an h23 has a bore and stroke of 87mm and 95mm respectively, and an f23 has a bore of 86mm but a stoke of 97mm.... So the torque comes up just a few hundred RPMs earlier than an h23... but the rod stroke ratio is a little lower... FI wise, accord blocks are known to hold up to 15 lbs of boost stock... So I can run more boost on this motor than if i had boosted my h23 vtec because f23's are iron sleeved and h-series are made of frm...

Quote:
Originally Posted by hOndafienD 04
will this hybrid have the same reving problems as the h23/vtec since it has even more stroke?
Well the rod to stroke ration is worse...But the F23a1 does have newer 55mm crank mains which are larger then the 50mm crank mains of the h23 and pre98 h22 blocks... Theoretically the larger mains would reduce the amount of sideload and stress on the rods... But either way I'm taking it easy on this motor... Whatever rpm the motor stops making power at is gonna be my rev limit....
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Old 11-29-2004, 02:01 PM   #13
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Default Re: ...G23 VTEC...(56K...Definitely Beware) (Sam1am26)

Quote:
Originally Posted by Sam1am26
Whatever rpm the motor stops making power at is gonna be my rev limit....
AMEN to that. Click the image to open in full size.

Are you going to run the H23 tranny again??
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Old 11-29-2004, 02:05 PM   #14
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looks promising....cant wait for the results!
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Old 11-29-2004, 02:41 PM   #15
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Default Re: (hOndafienD 04)

yeah actually, what tranny will you be using? and for what purpose will this car be for? everyday with some track, or a lot of track?

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Old 11-29-2004, 02:46 PM   #16
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I'm going to be re-using my h23 tranny... The car is going to be daily driven and abused on the weekends if ya know what i mean...
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Old 11-29-2004, 02:52 PM   #17
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good stuff

will you be taking donations as well Click the image to open in full size.
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Old 11-29-2004, 03:09 PM   #18
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Default Re: (PirateMcFred)

Quote:
Originally Posted by PirateMcFred
You intend to take it to the strip right? So once you are turboed aren't you going to have all sorts of traction problems? Maybe while it is all apart you could see what happens with an OBX LSD. I know that it sounds bad, but the B series ones have been holding up pretty well the FI forum. If it blows then get your money back and then get an H22 tranny. Just a thought...

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Old 11-29-2004, 03:50 PM   #19
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Default Re: ...G23 VTEC...(56K...Definitely Beware) (Sam1am26)

very nice. Click the image to open in full size.
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Old 11-29-2004, 06:41 PM   #20
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Default Re: ...G23 VTEC...(56K...Definitely Beware) (Paulnsx)

can i get the official gather up part list for the G23 Vtec please thanks. Winter Project Click the image to open in full size.
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Old 11-29-2004, 08:55 PM   #21
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Default Re: ...G23 VTEC...(56K...Definitely Beware) (GOTNOS)

Fucking awsome. Man a couple years back and people would think that you were liar. hahaha Click the image to open in full size. For the advancement of the hseries.
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Old 11-29-2004, 09:23 PM   #22
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Default Re: ...G23 VTEC...(56K...Definitely Beware) (PirateMcFred)

hahaha. Word. If it wasnt for Bizi Though i doubt there wouldnt be to many enquioring(sp.) minds Click the image to open in full size.
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Old 11-29-2004, 09:25 PM   #23
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Default Re: ...G23 VTEC...(56K...Definitely Beware) (BolivianFuego)

yea i know ppl taht still say it cant be done. ha to them
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Old 11-30-2004, 05:04 AM   #24
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Default Re: ...G23 VTEC...(56K...Definitely Beware) (d0twinx)

I am so interested in this thread. I have really been thinking of doing this. I will be watching this thread.
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Old 11-30-2004, 05:11 AM   #25
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Default Re: ...G23 VTEC...(56K...Definitely Beware) (95cxh22a)

Man, this is some really good stuff. It's good to know that there are options.... thanks to those that aren't afraid to try something different. Click the image to open in full size. Pirate Click the image to open in full size. SamIam Click the image to open in full size.
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