TurboDlude

Hello all, I'm a newbie to this forum, but I can easily see the wealth of knowledgeable people here so I thought I'd ask you guys/gals. I'm gonna post this in the Accord section too. I have a question which I'm sure has been asked before but my search efforts have returned nothing but fleeting excerpts.

Heres the deal.... I have a 96' Accord with 94' JDM (RedTop) Prelude running gear. I have the LSD trans...M2B4 I believe.

My problem is that I HATE the short gearing on the highway. 1st-4th are awesome for sprinting. HOWEVER when I get on the Hwy....which I do enough to worry about....I want the H22 to relax a little. No need to be at 4 Grand when doing 80. 3 Grand is like 62-65ish........still........at 3 grand I should be doing 70. SO.........I know some of you have done what I have in mind so...please give me some tips if you can.

I have two original 5sp F22 transmissions as a donors. I'd like to take the two gears that make up 5th gear in the F trans and transfer them to the H trans. What do I need to know? What or how do I do this? I have 20 yrs experience working on cars and engines but not transmissions.....I'm not scared.....I just want to gather all the info I can before I tear down my H22 trans....which runs and shifts absolutely to perfection. I have actually read posts from some of you who have done this 5th gear swap. Do I just swap the 5th gears from the F trans or the gears AND the final drive?
PLEASE HELP.....I want a taller 5th gear while keeping my quick shifting 1st-4th.

RSX 6sp manual anyone? Is that the answer?

Thank you all in advance.....feel free to email me too. Take care.


Modified by TurboDlude at 9:09 PM 12/19/2006


Modified by TurboDlude at 9:14 PM 12/19/2006


Modified by TurboDlude at 9:15 PM 12/19/2006

Sam_J

look at each helm's diagram for each trans and swap em out, its possible to do

KMaxwell

I use a f22 5th gear and a pro drive 4.71 FD on my set up no problems

TurboDlude

What did you have to do to get the 5th gears in the H tranny?

KMaxwell

nothing, i just it on the end of the shafts. I can tell you that i have an all mixed up trans cause now the casing is an f22 accord case P2U5 i believe. But i dont see any differances between them

2lude4u

You can swap most H & F series transmission internals. Most people will swap in a 5th gear from an F series tranny for better highway cruising.

P.S. I have the internals leftover from an F23 transmission including 5th gear.

rocket30004

I actually was wondering the same thing. It is really annoying 75mph @ 3.5K or 80mph @ 4K.

I wonder how much gas it would save too..?

A REAL fix would be a 6psd... *sigh*

piggydog

someone please post a how to on this.

sivikvtec

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by KMaxwell &raquo;</TD></TR><TR><TD CLASS="quote">I use a f22 5th gear and a pro drive 4.71 FD on my set up no problems</TD></TR></TABLE>

what is your rpm in 5th around 70mph, thanks

Hawkze_2.3

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

what is your rpm in 5th around 70mph, thanks</TD></TR></TABLE>

Haha, that's exactly what I was going to ask. How much did it drop your rpms at highway speed?

rocket30004

looking for an answer bump...

mike25

"what is your rpm in 5th around 70mph, thanks"
I'm also wondering what the answer is.

v4lu3s

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rocket30004 &raquo;</TD></TR><TR><TD CLASS="quote">I actually was wondering the same thing. It is really annoying 75mph @ 3.5K or 80mph @ 4K.

I wonder how much gas it would save too..?

A REAL fix would be a 6psd... *sigh*</TD></TR></TABLE>

i went from an m2a4 to an accord wagon tranny, its the accord lx gearing with the 4.266 final drive. so i had longer gears all around and it made absolutely no difference in gas mileage. i got 25-27 mpg before and the same after the swap.

KMaxwell

Its still not that great ut i want to say 3800-4100rpm at 65-70 range... I havent drove my car in 3 months so im giving you a close estimate. Sorry for the late answer

gogunkergorilla

if thats not enough, you could just run a bigger wheel...you wouldn't need to go that much bigger...the difference would be considerable because the wheel has a much larger radius than a gear...except that extra amount would lengthen all of the gears, and your speedo would be read lower...but you could probably get a setup so you could cruise at 75mph on the speedo but your actual speed would be close to 80mph and you would be at a lower rpm. just a thought....

LudeyKrus

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gogunkergorilla &raquo;</TD></TR><TR><TD CLASS="quote">if thats not enough, you could just run a bigger wheel...you wouldn't need to go that much bigger...the difference would be considerable because the wheel has a much larger radius than a gear...except that extra amount would lengthen all of the gears, and your speedo would be read lower...but you could probably get a setup so you could cruise at 75mph on the speedo but your actual speed would be close to 80mph and you would be at a lower rpm. just a thought....</TD></TR></TABLE>

That would throw off the speedo and raise the overall gearing like a new FD.

Get a Helm's and follow it line by line. It shouldn't be that hard with the manual. That being said, I know a guy running the F22 5th on an OEM LSD H22 tranny, and it cruises around 3500 @ 70-80.......don't remember the exact RPM, but I didn't believe him until I took it for a spin. It's a considerable difference.

rawNArsxS

u say it made a considerable difference...did it seem like it bogged down? ive never messed with anythin like this so im tryin to get an idea of wut it would feel like goin from the peppy 1-4 n then the calm 5th. is it a smooth change to a longer gear or do u really feel the difference like its bogging down, or does it feel like making a shift from 1st to 3rd or 2nd to 4th...skipping a gear


Modified by rawNAprelude at 2:00 PM 1/27/2007

LudeyKrus

No, it didn't bog down, but don't get that gear put in and expect to race anyone. It's a fairly good jump from 4th to 5th gear.....it sits low....

You'll cruise on the highway at around 3-3.5k, as opposed to my 4k+, IIRC

gogunkergorilla

yes it is bogged down because the car put less power to the wheels when you lengthen the gearing. you probably didn't change it enough to notice a differnce

rawNArsxS

nah its not a race car, its my daily driver. i do like to mess around with friends every now n then though. the only thing is i live on long island and do a lot of highway driving

gogunkergorilla

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LudeyKrus &raquo;</TD></TR><TR><TD CLASS="quote">No, it didn't bog down, but don't get that gear put in and expect to race anyone. It's a fairly good jump from 4th to 5th gear.....it sits low....

You'll cruise on the highway at around 3-3.5k, as opposed to my 4k+, IIRC</TD></TR></TABLE>

you don't get free improved gas milage...your 5th gear transfers less power now...guaranteed....your car does not defy physics.

LudeyKrus

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

you don't get free improved gas milage...your 5th gear transfers less power now...guaranteed....your car does not defy physics.</TD></TR></TABLE>

No ******* way Einstein, are you serious?

Of course it's producing less power at the wheels. "Bogging" is relative to the amount of power lost between normal cruising RPM's and the new RPM's. If it has decreased yet still acceptable power, it's not bogging.

gogunkergorilla

thats exactly what i mean...it DOES bog down when shifting to 5th.. because you altered the gear ratios...you've increase the difference between 4th and 5th gear...how are you not bogging down...or is your car from planet krypton?


Modified by gogunkergorilla at 12:43 PM 1/27/2007

LudeyKrus

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gogunkergorilla &raquo;</TD></TR><TR><TD CLASS="quote">thats exactly what i mean...it DOES bog down when shifting to 5th.. because you altered the gear ratios...you've increase the difference between 4th and 5th gear...how are you not bogging down...or is your car from planet krypton?
</TD></TR></TABLE>

You really don't read much, huh?

The car still accelerates, it just starts at a lower RPM and accelerates slower.

Bogging means to be so low in the RPM's that it barely maintains speed and/or decelerates. A lower gearing will not cause this, it will simply lower your cruising RPM and make acceleration in that gear slower.......NOT making it bog.

Are you done with your prancing?

gogunkergorilla

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

You really don't read much, huh?

The car still accelerates, it just starts at a lower RPM and accelerates slower.

Bogging means to be so low in the RPM's that it barely maintains speed and/or decelerates. A lower gearing will not cause this, it will simply lower your cruising RPM and make acceleration in that gear slower,.......NOT making it bog.

Are you done with your prancing?</TD></TR></TABLE>

it sounds like you don't really understand the effects of longer gearing on an engine....the engine spins slower because a bigger gear applies a greater force on the engine and requires more torque to turn it...

you said lower gearing and thats wrong, even if you ment longer gearing that is also wrong...the force needed to move the car is inversly proportional to the radius of the gear, so theoretically you could put a large enough gear so that the engine could not produce enough torque to counteract the forces acting against it.

in all, you can expect less torque to be transferred through a bigger gear making the car seem less powerful and "bogged down"

oh, and don't expletive with einstein.