Let's talk H22 transmissions

[fatboy1185]

On the USDM H22 tranny, stock gearing with a MFactory 5.15 FD and 23" slicks, 4th gear tops out at 105mph. With 24.5" slicks, 4th tops out at 112mph. I'm interested to hear from people using this 5.15 FD, because 4th gear tops out very low.

Now, with the 4.64 final drive, 4th gear tops out at 125mph with 24.5" slicks, and 117mph with 23" slicks.

This is with a 8500rpm limit.

Is the majority of people who use the 5.15 final drive using it for auto-cross only(?), because the 4th gear trap speeds are very low.

[CB7 Sleeper]

The FD gearing in the H22 transmission is the whole reason I decided to stick with the F22 transmission with my swap. I was considering it at first for the short gearing, because I was looking forward to the acceleration, but I later reconsidered because I am using nitrous so with the long F22 transmission gearing I can spray longer and really get up there with the top speed, especially since I'm using an engine as rev friendly as the F20a DOHC.

Now, the H22a transmission with the F22a transmission FD, that's a different story. But I'll let somebody else get into that because I don't have any personal experience with it.

[fatboy1185]

The FD gearing in the H22 transmission is the whole reason I decided to stick with the F22 transmission with my swap. I was considering it at first for the short gearing, because I was looking forward to the acceleration, but I later reconsidered because I am using nitrous so with the long F22 transmission gearing I can spray longer and really get up there with the top speed, especially since I'm using an engine as rev friendly as the F20a DOHC.

Now, the H22a transmission with the F22a transmission FD, that's a different story. But I'll let somebody else get into that because I don't have any personal experience with it.

Short gears would be better for Nitrous as well. You say you want top speed, what are you doing, the mile? Unless you have a car that is trapping in the 150's in the 1/4 mile, the F22a tranny is worthless.

[CB7 Sleeper]

Short gears would be better for Nitrous as well. You say you want top speed, what are you doing, the mile? Unless you have a car that is trapping in the 150's in the 1/4 mile, the F22a tranny is worthless.

I'd like to do the 1/2 mile, and I am talking more about a race from a roll being from highway speeds, and a track with long straights.

[preludeman92]

4th gear trap speeds are very low.

That's why we have 5th gear

[PR CB7]

what about this

m2y4 1-4th

m2l5 5th


since prelude and accord trans dont interchange

what about the f22 prelude trans 5th?

[fatboy1185]

That's why we have 5th gear

Shifting into 5th gear in the 1/4 is not that ideal, the gearing ratio is horrible.

[fatboy1185]

what about this

m2y4 1-4th

m2l5 5th


since prelude and accord trans dont interchange

what about the f22 prelude trans 5th?

I'm not worried about 5th gear at all. I want the best gearing for 1-4th. My only concern is the low 4th gear trap speed with the aftermarket final drives.

[fatboy1185]

I think the 5.15 with 24.5" slicks would be the best bet. I just need to figure out if 24.5" slicks are overkill for a simple, low horse power app.

[fatboy1185]

Hmmm I figured the topic of improving the long geared H22 tranny would be popular, but I was mistaken.

[mozzandherb]

I would also like to try MFactory components, heard some good things. And yes 24.5" slicks are a little much for lower hp apps. I'm somewhere between 270-300hp and I'm using 22" slicks and they're great.

[fatboy1185]

But even with 23" slicks and the 5.15, 4th gear at 8500rpms would be only at 105mph lol.

[mozzandherb]

o.k, but what is your expectations? At 105 you can still put down a decent 1/4 mile

[fatboy1185]

o.k, but what is your expectations? At 105 you can still put down a decent 1/4 mile

I'll probably be trapping in the 115 area. I could use the 4.64, which would work with 23" tires, but I would be losing power due to the lower final drive.

[Supergenius]

On the USDM H22 tranny, stock gearing with a MFactory 5.15 FD and 23" slicks, 4th gear tops out at 105mph. With 24.5" slicks, 4th tops out at 112mph. I'm interested to hear from people using this 5.15 FD, because 4th gear tops out very low.

Now, with the 4.64 final drive, 4th gear tops out at 125mph with 24.5" slicks, and 117mph with 23" slicks.

This is with a 8500rpm limit.

Is the majority of people who use the 5.15 final drive using it for auto-cross only(?), because the 4th gear trap speeds are very low.

HAHAHAHA My FIFTH gear inthe Saenz trans is 1.03:1 (Closer to an OEM 4th)with a stock FD ratio of 4.26 I get 150 MPH at 8500 on 26" tall tires.... Tops out at 123 or some shit in 4th... SO I go through the traps well into 5th gear, but it full throttle shifts smooth as butter, even though its syncroed and not dog engaged... Sexy though and doesnt break. And I beat the shit out of it.










I Broke 15 trannys in my pile before figuring out some shit... And building this trans.... There is ABSOLUTELY NOTHING you can do to get an OEM geared tranny to hold up of say north of 400 FT LBS.. No Cryo or heat treating is going to do any good, but get you a few more runs.... Have a friend that had racersteve treat his and they lasted a tad longer but still broke.

Shifting into 5th gear in the 1/4 is not that ideal, the gearing ratio is horrible.

4th gen m2f4 has a pretty nice short 5th.. ALOT shorter than the M2Y4 or the like... I have a spare 5th set if you want to try them... I personally find the spacing of the M2F4 to be the best OEM offering IMO (although as mentioned highway cruise is about 500 rpm higher)...

ALSO the input shaft has 1 less tooth on it for 1 and 2 that allows it to be a tad stronger..... It will also replace aeither m2b4 or a 4 input shafts as it is the same (the M2Y4 is not)... The weak point of the H trannys is 4th gear and secon gear.... The Y4s like to break either 2 or 4, but the F4 Ive only broke fourth... You like to see pics???


LOL

Hit me up if you need help