Ok.. I have an H23 I put together with some parts I had laying around h22 pistons, some cam gears, blah blah blah. Has anybody ran the h22 tranny with an h23? What are your results mainly focused on the 1/4 mile.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by md23vtec &raquo;</TD></TR><TR><TD CLASS="quote">Ok.. I have an H23 I put together with some parts I had laying around h22 pistons, some cam gears, blah blah blah. Has anybody ran the h22 tranny with an h23? What are your results mainly focused on the 1/4 mile.</TD></TR></TABLE>
h22 has shorter ratios, thats for sure

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Buffalo &raquo;</TD></TR><TR><TD CLASS="quote">h22 has shorter ratios, thats for sure</TD></TR></TABLE>

my gosh, get the encyclopedia out johnson, we've got something revolutionary to throw in there.....

OP: what cams are you gonna run....if youre gonna be lookin at a nice wide powerband i would stick with the m2s4 but if theyre gonna be big up top i would go with the ´22 trans....

 

The 5th Gen H22 M2Y4 has virtually the same ratios as the M2S4. I would keep the M2S4. If you went with the M2F4 for tuely lower gearing you might have to shift to 5th at the end of the quarter. You don't want to do that.


5Gen (M2Y4 I think):
1 - 3.285
2 - 1.956
3 - 1.344
4 - 1.034
5 - 0.812
FD 4.266

M2S4
1 - 3.307
2 - 1.857
3 - 1.320
4 - 1.034
5 - 0.812
FD 4.266

M2F4
1 - 3.307
2 - 1.950
3 - 1.360
4 - 1.071
5 - 0.870
FD 4.266

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PirateMcFred &raquo;</TD></TR><TR><TD CLASS="quote">The 5th Gen H22 M2Y4 has virtually the same ratios as the M2S4. I would keep the M2S4. If you went with the M2F4 for tuely lower gearing you might have to shift to 5th at the end of the quarter. You don't want to do that.


5Gen (M2Y4 I think):
1 - 3.285
2 - 1.956
3 - 1.344
4 - 1.034
5 - 0.812
FD 4.266

M2S4
1 - 3.307
2 - 1.857
3 - 1.320
4 - 1.034
5 - 0.812
FD 4.266

M2F4
1 - 3.307
2 - 1.950
3 - 1.360
4 - 1.071
5 - 0.870
FD 4.266
</TD></TR></TABLE>

Ahhh didn't think about that. Right now its pretty much a junk stock build. Stock bottom end with usdm H22 pistons for some added compression. Top side was an old turbo head with custom valvesprings, stainless valves, and mild port job. More then likely gonna sell it to one of my buddies who is interested in the motor.

We have access to both tranny's M2S4 and M2F4. We were debating on which one would be better.

Pirate do you think possibly adding some crower cams would wake up the motor? It's not a crazy setup just **** i had laying around cleaning house. I have a chipped P14 were gonna use that has a 7400 rev limit and just tune it a little better with an AFC. Possibly add some N20. FYI its going in an 93 accord wagon

 

Hmm H23 in an Accord Wagon? With that heavy *** car and a somewhat underpowered H23 engine I might recommend the M2F4. With a 24" slick or drag radial you'd top out at 105 with the M2F4 in 4th and 108 in the M2S4. so go with the M2F4 until you get more power.

If you want to go with cams and do not have to worry about emissions then I would say go stage 2 cams and tune it. Stage 3 if you really want more top end. With stock h23 cams power falls like a brick after about 5200 so rev it to maybe 5900-6000 max, no point in revving higher. Cams and a free flowing exhaust sytem will improve the top end a lot.

With 11.5:1CR and stock cams with decent tuning and bolt ons i would say that you could get to 165-170 whp. It is a guess but not unreasonable IMO esp. considering you have a mild port job.

Pirate

 

what redline are you basing your numbers off Pirate?

I have some experience with the M2F4 and 23" slicks.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PirateMcFred &raquo;</TD></TR><TR><TD CLASS="quote">Hmm H23 in an Accord Wagon? With that heavy *** car and a somewhat underpowered H23 engine I might recommend the M2F4. With a 24" slick or drag radial you'd top out at 105 with the M2F4 in 4th and 108 in the M2S4. so go with the M2F4 until you get more power.

If you want to go with cams and do not have to worry about emissions then I would say go stage 2 cams and tune it. Stage 3 if you really want more top end. With stock h23 cams power falls like a brick after about 5200 so rev it to maybe 5900-6000 max, no point in revving higher. Cams and a free flowing exhaust sytem will improve the top end a lot.

With 11.5:1CR and stock cams with decent tuning and bolt ons i would say that you could get to 165-170 whp. It is a guess but not unreasonable IMO esp. considering you have a mild port job.

Pirate
</TD></TR></TABLE>

Yeah more then likely the wagon. I am trying to get him to put in his 94 lude instead he is dead set on the wagon.

I didnt think the compression would be that high with USDM slugs. I know the pin height is raised but the piston is not that much higher the the dish 23 piston. I guesstimated 10.4:1 - about 10.7:1 hmmm that might work out better especially if we put on the N20.

As far as reving it to 6K max Id defiantly have to experiment there. Few years ago when I had my h23 it was running 15.40- 15.50's with the chipped dinan ecu 7400 rev limit it went down to 15.00 -15.10's same day same track . I guess its all trial and error.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by md23vtec &raquo;</TD></TR><TR><TD CLASS="quote">
I didnt think the compression would be that high with USDM slugs. I know the pin height is raised but the piston is not that much higher the the dish 23 piston. I guesstimated 10.4:1 - about 10.7:1 hmmm that might work out better especially if we put on the N20.</TD></TR></TABLE>

I think Pirate is right.

Before the H/F-series CR calc died I kept getting a calculated 11:1 ratio for the H23VTEC I've always been too scared to build. That would be with USDM H22 pistons and a H22 head. With a H23 head your CR should be higher, not lower, because afaik it has a smaller CC.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by A Blue Lude &raquo;</TD></TR><TR><TD CLASS="quote">

I think Pirate is right.

Before the H/F-series CR calc died I kept getting a calculated 11:1 ratio for the H23VTEC I've always been too scared to build. That would be with USDM H22 pistons and a H22 head. With a H23 head your CR should be higher, not lower, because afaik it has a smaller CC.</TD></TR></TABLE>

I wasnt say he was right or wrong I was saying what I guessed. I know stock the H23 is 9.8:1 so just adding usdm h22 pistons ( i wouldnt think would raise it to 11.5:1) I figured .4 from the dome height and another .2 - .6 from the pin height being raised. Thats why I guesstimated 10.7:1. It very well could be 11.5:1 not to sure.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by skunked &raquo;</TD></TR><TR><TD CLASS="quote">what redline are you basing your numbers off Pirate?</TD></TR></TABLE>

Stock (6700 rpm), 1.034 4th gear, 4.2667 FD, 24" diameter tires. Tires will change a lot of stuff. if he only goes with a 22" diameter tire he'll go about 99 at 6700rpm in 4th. That extra 700 rpm the H22 has would really help all that but the Stock H23 cams have naught for power past 6000. So I imagine that he should just wind it out instead of using 5th. That's my argument for the M2S4. With some large diameter tires and a 2900 pound car, I douubt that he'll get close to 100. SO use the M2F4.

And yes an H23 with H22 pistons will yield 11.5:1 CR.

Pirate

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PirateMcFred &raquo;</TD></TR><TR><TD CLASS="quote">

Stock (6700 rpm), 1.034 4th gear, 4.2667 FD, 24" diameter tires. Tires will change a lot of stuff. if he only goes with a 22" diameter tire he'll go about 99 at 6700rpm in 4th. That extra 700 rpm the H22 has would really help all that but the Stock H23 cams have naught for power past 6000. So I imagine that he should just wind it out instead of using 5th. That's my argument for the M2S4. With some large diameter tires and a 2900 pound car, I douubt that he'll get close to 100. SO use the M2F4.

And yes an H23 with H22 pistons will yield 11.5:1 CR.
Pirate</TD></TR></TABLE>

Thanks for the info . FYI its going in the lude not the wagon . His girlfriend chrashed the van so she is gonna be driving the wagon. He ordered crower stage 2's today were gonna run with those and the h23 tranny. I am sure it will trap over 100 if we spray it

Current setup in that car stock H23 CAI, kamakazee header, high flow cat, apex exhaust. 80direct port . 225/50/15 BFG drags 14.07 @ 98.78/ motor 15.33@ 87. I think it will wake up quite a bit if we decide to spray this motor with the higher compression, cams and mild port job. I think it will still go mid to high 14's on the motor

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PirateMcFred &raquo;</TD></TR><TR><TD CLASS="quote">

Stock (6700 rpm), 1.034 4th gear, 4.2667 FD, 24" diameter tires. Tires will change a lot of stuff. if he only goes with a 22" diameter tire he'll go about 99 at 6700rpm in 4th. That extra 700 rpm the H22 has would really help all that but the Stock H23 cams have naught for power past 6000. So I imagine that he should just wind it out instead of using 5th. That's my argument for the M2S4. With some large diameter tires and a 2900 pound car, I douubt that he'll get close to 100. SO use the M2F4.

And yes an H23 with H22 pistons will yield 11.5:1 CR.

Pirate</TD></TR></TABLE>

yeah I agree. My H22 was spining to 8500+ with the M2F4 and I still had too much tire.