H22 minus tranny

[chito31]

Another question. I've heard you can install the H22 engine using the Accord stock tranny. There is a power drawback, but how significant is this drawback? Will the H22 power eventually damage the stock tranny and require replacement to a Prelude tranny anyway? I'm not planning on racing my Accord, but would like a new engine upgrade without shelling out $2000+.

Also, mounting of H22 I hear is basically a direct bolt into the 4th Generation. Is this so?

[myaccord8urpos]

I used all my stock accord mounts. The transmission mout did need to be tapped to allow me to use the stock accord mount. If you kept the accord tranny in, it wouldnt be a problem. 1st gear in f22/h23/h22 tranny's are all the same gearing ratio (I was suprised too, I couldnt imagine having another 75 HP in 1st gear with an h22) After that the gearing is longer for the h23 and even longer in the h22. Final drives are also larger on the h series

[nitrousoxsys]

About the F22 tranny with H22 enigne. I actually heard that it is better to keep f22 tranny with h22 swap if you are planning going turbo. The gears are longer and it is perfect for turbo. That's what I did I swapped my auto out and dropped brand new 97 accord LX 5 speed tranny with 2nd stage clutch. In august i will be dropping h22a in and have it run with 9-12psi by christmas.

[vasponger]

my soon to be sir-t tranny is short as shit, h22's will bow to me on the 1/4mile

[H22Inside]

CHITO31,

You can install the Accord tranny to an H series motor. Direct replacement. When I did my swap, I messed up reverse on the H22 tranny so I swapped out the H22 tranny and w/ the F22 tranny. Now, keep in mind that I put 230,000 miles on the F22. So, after about a month or so,I kid you not, the tranny was louder than the engine itself. No BS. I don't know if it was 'cause of 7,500+ revs or just the time for the tranny to go, but that's what happened. That's what happened to me, I'm not putting blame on the engine but it could have been a factor. Another thing to consider is the "drawbacks". Acceleration is diminished w/ the f22 tranny, mainly because of the gear ratios. It's alot taller. I know that from research and experience. I had the H22 tranny for about 5 months, then the F22 tranny for maybe 3 months, and now I swapped it out for another H22 tranny. There IS a difference in acceleration. I would strongly suggest the H22 tranny. Oh and one more thing........because the gears are taller in the F22 tranny, your revs will usually drop below VTEC. But yeah.......just some info for you.

[imcheap]

just wondering... you said acceleration is slower putting a f22 tranny on a h22 engine... how would the h22 tranny do on a f22 engine???

[myaccord8urpos]

The f22 doesnt make enough power. You could use an h23 tranny in a pinch though. The gears are like a middle ground between h22 and f22. i cant wait til my car is running this weekend!!!!!!

[team213]

The f22 doesnt make enough power. You could use an h23 tranny in a pinch though. The gears are like a middle ground between h22 and f22. i cant wait til my car is running this weekend!!!!!!

so a h23 tranny is better for the f22? or is the h22 tranny better

[myaccord8urpos]

Well, an f22 tranny is the best tranny for an f22. Honda didnt put months of research into gear ratios for an engine for nothing. But with a forced induction f22 set up, sure, an h23 tranny or h22 tranny would be applicable. If you really really needed a tranny for your f22 and couldnt find another f22 tranny, you could use an h23 tranny. Its best to stick to something similar to what a car company designed it for unless you go crazy with performance mods.

[myaccord8urpos]

Differences in gear ratios

F22---H23----H22
1---3.307---3.307---3.307
2---1.809---1.857---1.950
3---1.230---1.320---1.360
4---.903----1.034---1.071
5---.705----.812----.871
Final 4.026 4.266 4.266

Chart Courtesy of www.h22a.org (http://www.h22a.org/) As you can see, the h23 and h22 trannys are very similar. Which would make an h23 tranny an ok swap for the f22 and an acceptable swap for h22 motors.

[imcheap]

im sorry man... but those numbers don't make sense to me... so would you kindly explain?

[myaccord8urpos]

Someone might be able to help me out a little but the higher the gear ratio is, the more times the final drive number is being multiplied by the gear ratios = the output rpm's of the transmission. Im as lost as you are. lol

[H22Inside]

so a h23 tranny is better for the f22? or is the h22 tranny better

Just my two cents....From experience I can tell you that an F22 tranny and an H22 tranny feel totally different. If you were to install an H22 tranny in an F22 engine you would get better acceleration. I researched what different gear ratios do and read that shorter gears (h22) give better acceleration because the revs don't drop so low. Granted, fuel economy will suffer 'cause your revs will be constantly higher than normal. If would suggest you put an H22, or H23, tranny in the F22. You will be shifting more often though. Oh, one more thing, w/ the H22 tranny, at about 80 or 90 mph the revs will be at about 5000 or so. The F22 engine redlines at 6300 or so, the H22 at 7500 or something. Just something for you to keep in mind.

[imcheap]

so faster acceleration if i were to put the h22/h23 tranny on an f22... how would it affect top speed???

[myaccord8urpos]

the gear ratios are different, but so is the final drive, and the f22 doesnt make enough power to spin the h22 tranny

[imcheap]

huh...??? i'm confused... how can the f22 not have enough power to turn the h22 tranny??? the h22 have bigger gears??? or smaller gears???... i still don't know what those numbers mean...


H22Inside said from experience... the h22 tranny have smaller gears... and acceleration is faster then the f22 tranny... i still don't see how the f22 doesn't make enough power to spin the h22 tranny


bigger gears= slow acceleration= faster top speed...
smaller gears = faster acceleration = decreased top speed...

bigger gears needs more power to be spun...
smaller gears need less power to be spun...


i'm confused...

[H22Inside]

Well, just to clear some things up. The f22 and h22 don't really have different "size" gears per se. One has "shorter" gears, and the other has "taller" ones. While I was researching, the quotes went like this:

"Shorter gears give improved acceleration while taller gears gives higher top speed"

I can vouche for both. With the F22 tranny in my H22 I reached 110 in third gear and hit 132mph in fourth. I can't do that w/ the h22 tranny. In third I can get to 95mph and no way will I get to 130 in fourth. I'll try to find those websites and post a link. Maybe they can help you out more than I can.

As for acceleration, I can get to any one of those speeds faster w/ the H22 tranny. I'm quite sure it would be the same for either of those trannys in an F22 engine. You would get to any speed a bit faster w/ the H22 tranny.

One quick note, top speed would be less w/ the H22 installed on an F22 engine for the reason that you would hit your rev limiter alot sooner, and thus at a lower speed..........but you would get there quicker.

[myaccord8urpos]

I can hit 110 in 3rd gear.

[vasponger]

ive hit 100 in d3 :)

[imcheap]

I can hit 110 in 3rd gear.



how you hit 110 in 3rd gear??? my rev limiter cuts me out just under 70