Adding TSX 6th gear to A3 tranny

[MadLorEP3]

update

i have only driven the car a little over 350 miles with the new lsd and 6th gear, but the 5-6 sleeve set seem unnecessary--i have had no problems with the transmission thus far :thumb:
:knock on wood:

here is my parts list--stuff necessary to put that gear in
24240-PNS-000 PIECE, REVERSE SHIFT 1
24430-PNS-000 INTERLOCK 1
24201-RAS-000 FORK, FIFTH-SIXTH GEARSHIFT 1
23590-RAS-A00 GEAR, MAINSHAFT SIXTH 1
91103-RAS-003 BEARING, NEEDLE (35X41X24) 1
23916-PNS-000 COLLAR, DISTANCE (28X35X24) 1
90011-PPP-000 BOLT, SPECIAL (20X25) 1
23491-RAS-000 GEAR, COUNTERSHAFT SIXTH 1
that elementownersclub thread was very helpful, when used hand in hand with the service manual of an rsx s

so i guess this is not needed

Synchronizer sleeve set(5-6) 23626-PNS-305 $264.40

can the op update the first post
that would be great
thanks

[lldiesel386ll]

so i guess this is not needed

Synchronizer sleeve set(5-6) 23626-PNS-305 $264.40

can the op update the first post
that would be great
thanks

holy crap that was long ago...

swapped at 29505 miles, getting around 65 now. outside of my need to flush my oil out, no problems there was an update to that about a year ago, but that was lost to the second crash. oh well--no new/interesting news missed on this thread on my part since then

[MadLorEP3]

Maybe i missed it but i dont remember anything being mentioned about getting either a z3 or type s shifter mechanism

[lldiesel386ll]

i dont recall purchasing any different mechanisms outside of the first two parts its been just about two years since i have cracked open that transmission case. i am currently in the middle of trying to find a house--when things settle down on my end i will look up what was needed

[MadLorEP3]

5SPD EP3 CONVERSION TO 6SPD PARTS LIST:

I know that part number 1 is not listed on the original list but Im wondering why the clubrsx peoples say they are needed
does anyone know if part 1 is needed
1. Honda Single Cone Synchronizer (23641-PPP-000) Ring, Blocking (66SZ)
($28.94)

2. Reverse shift piece 24240-PNS-000 (02-06 RSX/04-09 TSX) $35.70
3. Interlock 24430-PNS-000 (02-06 RSX/04-09 TSX) $22.34
4. Fork, Fifth-Sixth Gearshift 24201-RAS-000 (04-09TSX)$53.76
5. Mainshaft Sixth Gear 23590-RAS-A00 (06-08 TSX) $57.60
6. Needle Bearing 91103-RAS-003 (35x41x24)(06-09 TSX) $7.69
7. Distance Collar 23916-PNS-000 (28x35x24) (02-06 RSX/04-09 TSX) $4.24
8) Bolt, Special (20X25) 90011-PPP-000 (02-06 RSX/04-09 TSX) $4.94
9) Countershaft sixth gear 23491-RAS-000 (04-08 TSX) $50.53

[usedep3]

5SPD EP3 CONVERSION TO 6SPD PARTS LIST:

I know that part number 1 is not listed on the original list but Im wondering why the clubrsx peoples say they are needed
does anyone know if part 1 is needed
1. Honda Single Cone Synchronizer (23641-PPP-000) Ring, Blocking (66SZ)
($28.94)

2. Reverse shift piece 24240-PNS-000 (02-06 RSX/04-09 TSX) $35.70
3. Interlock 24430-PNS-000 (02-06 RSX/04-09 TSX) $22.34
4. Fork, Fifth-Sixth Gearshift 24201-RAS-000 (04-09TSX)$53.76
5. Mainshaft Sixth Gear 23590-RAS-A00 (06-08 TSX) $57.60
6. Needle Bearing 91103-RAS-003 (35x41x24)(06-09 TSX) $7.69
7. Distance Collar 23916-PNS-000 (28x35x24) (02-06 RSX/04-09 TSX) $4.24
8) Bolt, Special (20X25) 90011-PPP-000 (02-06 RSX/04-09 TSX) $4.94
9) Countershaft sixth gear 23491-RAS-000 (04-08 TSX) $50.53

did you find out if the: Honda Single Cone Synchronizer (23641-PPP-000) Ring, Blocking (66SZ) ($28.94)
was needed?

i opted to not get the 5-6 syncro set. does that mean i need this single cone syncro?

[AKEP]

wow, my shit got deleted. i had some good info on here.

[MajorJones]

Why dont you just swap the DC-R tranny in? 6th gear plus a short final drive. Doing 70 with it am at about 3k. i can make a 250 trip on a full tank of gas and still able to drive around for about 2 day before the light turns on. i figure if your going to spend the money might as well. Props to you on building it yourself, good luck man

[Anrasmor]

5SPD EP3 CONVERSION TO 6SPD PARTS LIST:

I know that part number 1 is not listed on the original list but Im wondering why the clubrsx peoples say they are needed
does anyone know if part 1 is needed
1. Honda Single Cone Synchronizer (23641-PPP-000) Ring, Blocking (66SZ)
($28.94)

2. Reverse shift piece 24240-PNS-000 (02-06 RSX/04-09 TSX) $35.70
3. Interlock 24430-PNS-000 (02-06 RSX/04-09 TSX) $22.34
4. Fork, Fifth-Sixth Gearshift 24201-RAS-000 (04-09TSX)$53.76
5. Mainshaft Sixth Gear 23590-RAS-A00 (06-08 TSX) $57.60
6. Needle Bearing 91103-RAS-003 (35x41x24)(06-09 TSX) $7.69
7. Distance Collar 23916-PNS-000 (28x35x24) (02-06 RSX/04-09 TSX) $4.24
8) Bolt, Special (20X25) 90011-PPP-000 (02-06 RSX/04-09 TSX) $4.94
9) Countershaft sixth gear 23491-RAS-000 (04-08 TSX) $50.53

I've been looking around for the last 2 weeks or so online and am still having a hard time finding a complete parts list for just the conversion aspect of adding the 6th gear to an ep3. So I emailed clubrsx technical support and they gave me a list of what they say you need. I'm hoping somebody who has done it before will be able to verify if this list is correct or the one posted by madlorglk. Here's the list from crsx:

Along with the TSX6th package you will also need these parts:

23916-PNS-000
24201-PNS-010
24240-PNS-000
24210-PNS-010
24430-PNS-000
24412-PNS-000

This also appears on the clubep3 site. I'm assuming these are pretty much the same parts but Acura part numbers. They do mention that this is all you need to add the 6th gear to the A3:

http://www.clubrsx.com/clubep3/tsxgears.html

[bluejayxiong]

Wow you guy are awesome. I'm a newbie at fixing cars so could any show me or explain how to add the 6th gear? like pictures or step by step? I would like to add 6th gear to me 04 ep3. I also want to know if adding the 6th gear will add any torque and horse? is there like a way that the TSX tranny could fit onto our k20a3?

[jonathanep3]

i have a 2004 civic si with the k20a3 5 speed transmission can i put the JDM Civic EP3 K20A NPR3 Type R 6 Speed Transmission (LSD Equipped/4.764 FD)

[AKEP]

Wow you guy are awesome. I'm a newbie at fixing cars so could any show me or explain how to add the 6th gear? like pictures or step by step? I would like to add 6th gear to me 04 ep3. I also want to know if adding the 6th gear will add any torque and horse? is there like a way that the TSX tranny could fit onto our k20a3?

since i was goig to do this last year, i'll take pictures this year when i take it apart. for this thread.
No, the tsx tranny will not fit, it bolts to the frame differently. its only swappable between accords and tsx's

i have a 2004 civic si with the k20a3 5 speed transmission can i put the JDM Civic EP3 K20A NPR3 Type R 6 Speed Transmission (LSD Equipped/4.764 FD)

yes, but search next time.

[AKEP]

ok guys, got this ready to order next month (end of november) and an LSD.

Reverse shift piece 24240-PNS-000 (02-06 RSX/04-09 TSX)
Interlock 24430-PNS-000 (02-06 RSX/04-09 TSX)
Fork, Fifth-Sixth Gearshift 24201-RAS-000 (04-09TSX)
Mainshaft Sixth Gear 23590-RAS-A00 (06-08 TSX)
Needle Bearing 91103-RAS-003 (35x41x24)(06-09 TSX)
Distance Collar 23916-PNS-000 (28x35x24) (02-06 RSX/04-09 TSX)
Bolt, Special (20X25) 90011-PPP-000 (02-06 RSX/04-09 TSX)
Countershaft sixth gear 23491-RAS-000 (04-08 TSX)
3rd gear set for ep3/rsx

came out to like $462 shipped.

[talonXracer]

is there like a way that the TSX tranny could fit onto our k20a3?

No it will not fit, BUT you can crack it open and slip the complete internals in to the EP3's 5 spd case...

i have a 2004 civic si with the k20a3 5 speed transmission can i put the JDM Civic EP3 K20A NPR3 Type R 6 Speed Transmission (LSD Equipped/4.764 FD)

Yes

[usedep3]

ok guys, got this ready to order next month (end of november) and an LSD.

Reverse shift piece 24240-PNS-000 (02-06 RSX/04-09 TSX)
Interlock 24430-PNS-000 (02-06 RSX/04-09 TSX)
Fork, Fifth-Sixth Gearshift 24201-RAS-000 (04-09TSX)
Mainshaft Sixth Gear 23590-RAS-A00 (06-08 TSX)
Needle Bearing 91103-RAS-003 (35x41x24)(06-09 TSX)
Distance Collar 23916-PNS-000 (28x35x24) (02-06 RSX/04-09 TSX)
Bolt, Special (20X25) 90011-PPP-000 (02-06 RSX/04-09 TSX)
Countershaft sixth gear 23491-RAS-000 (04-08 TSX)
3rd gear set for ep3/rsx

came out to like $462 shipped.

are you planning to do the work yourself?