To my knowledge, the JDM H22a has 200 hp. Some of you may have seen the recent threads about the JDM H23 VTEC that came in Accord Sir-T Wagons. I found someone to translate the site and convert the figure for that motor to HP, and it comes out to about 197. I was considering a swap with the H23 VTEC. . .but this info has changed my mind (especially considering the H23 VTEC is $3200 for long block and ECU). I figured you could probably get a Type-S swap (23 more HP) for about the price it would cost to get the H23 VTEC up and running.
What I havent figured out is WHY the H22 (non type-S) has more HP even though it has less displacement. Here's my hypothesis: The H23 VTEC dosn't have the additional oil squirters found on the H22 and therfore cant rev as high. It may not be due to the oil squirters, but maybe something else preventing the H23 from revving higher (longer stroke maybe?). Thats about the best excuse I can come up with. Can anyone help to shed some light on this?
i know the redline isnt as high because i read it on the honda site. its probably also due to the longer stroke...but the h23 vtec probably has about 5-12ft/lb more torque
23 more hp from a h22 against a h23 vtec isnt really that much considering if you are gonna put more mods to it anyways...that only thing good with the h22 compared to h23 vtec is that availability of aftermarket parts....you sure do have alot more compared to the h23...so you'll be better off with the h22......thats just my 2 cents....
i think that the head on the h23 vtec will accept h22 parts. i think the only real difference is the stroke. everything else is the same i think. dont quote me on that though.
Just like 4bidden said..the H23 vtec probably has a good bit of extra torque..which makes it pretty interesting to me....I definately wanna read up more
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Originally posted by TheGreatOne Just like 4bidden said..the H23 vtec probably has a good bit of extra torque..which makes it pretty interesting to me....I definately wanna read up more
Good luck finding info. So far the only like I have is to the Honda-jap site. Someone translated the HP rating for me, maybe they can do the same for the TQ numbers.
The JDM H23 VTEC head is maybe just the same as a usdm H22 VTEC head, but the JDM H23 block would be different than a usdm h23 block because it won't rely on the bottom-end for as much of the power like a non-vtec H23(usdm) does. Whats is the H23 VTEC offered in? JDM Accord?
Originally posted by NirVTEC The JDM H23 VTEC head is maybe just the same as a usdm H22 VTEC head, but the JDM H23 block would be different than a usdm h23 block because it won't rely on the bottom-end for as much of the power like a non-vtec H23(usdm) does. Whats is the H23 VTEC offered in? JDM Accord?
Yeah, I'm not sure if the JDM H23 VTEC uses the additional oil squirters found on H22 blocks. I have heard that not having that additional lubrication capability in the homemade H23/VTEC engines is what limits their lifespan. As far as I know, the H23 VTEC was only offered in the 2000+ Accord Sir-T wagon (lucky bastards got AWD too ). Check out the car on Honda's Japan Website
well...think about it though...it may have the big numbers to it compared to a h22 but the difference now is the availability of aftermarket parts...even now...i have a h23 and i'm having a hard time getting parts for it....and compare it the h22, it has everything like a b-series motor ...so i would personally go with a jdm h22 ....and even so, i probably go the route of turbo for a usdm h23...if you want power, go FI and if all-motor set-up, with h22 or h23-vtec...
H23 VTEC AWD Wagons, Type-s Ludes, Type-r Civics, Type-r Accords, and we won't even get into all the other imports...I'm going to go play Gran Turismo 2, and built an Accord Wagon...
but not really that much difference...when you measure at the wheel...so i would go with the one that has more available aftermarket parts so i can make it go faster....
so would it be cheaper to port polish shave and do a head job on my h23, including new springs cams cam gears and valves, than buying a type s? what would the hp differences be? thanks
-tyler
Hey,
The JDM h22 has 200ps which equals about 197hp. The Type S is the same 220ps which is about 217hp. The type S engine has different cams, 11:1 compression, a more aggresive fuel map, bigger intake, better exhuast manifold, stronger valvetrain, and a slight factory port. That is where is makes its power.
The torque amount of the JDM h23 vtec is 22.5 kg/m which equals 162.74 so 163 lb/ft of torque on that baby.
Josh
The Type-S is blown out of proportion. Does anyone know how much more it is for a Type-s vs. Base. 20whp is a weak power gain for all those mods. By changing the differences between the 2 engines, I could have the base run circles around a Type-s motor...
Originally posted by NirVTEC The Type-S is blown out of proportion. Does anyone know how much more it is for a Type-s vs. Base. 20whp is a weak power gain for all those mods. By changing the differences between the 2 engines, I could have the base run circles around a Type-s motor...
A typeS swap runs about $4200 or so. With the 2K you save by using a normal H22, you could do a lot of work. . .even get the fancy red valve cover. So does the H23 VTEC have the same HP as the JDM H22? People have told me both have 197 hp. . .cant really be sure since I cant read the specs of the Honda Japan site for the H23 VTEC.
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). Check out the car on Honda's 
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