EP3 tranny going in...

TeamXXXrob · 11-13-2009, 12:44 PM

So as you all know i've been running the base RSX 5-speed transmission for the past couple years and its held up really well, but i've always felt that the gearing was too long for my power level and that my car could go faster with better gearing.

Enter the 02-05 Civic Si Transmission... very similar gearing but a shorter FD which will overall make the motor rpm quicker.

5-Speed Comparison:
RSX | Civic Si
1- 3.266 | 3.062
2- 1.88 | 1.769
3- 1.212 | 1.212
4- 0.921 | 0.921
5- 0.738 | 0.738
FD- 4.389 | 4.764

I wanted to do this test before the end of year in similar weather conditions so i'm praying for good weather next weekend.

Started taking the tranny out last night...

AMF Racing · 11-15-2009, 12:36 AM

damn that's a sexy intake manifold. nice work man shits gonna rip

abp-rsx-s-t · 11-19-2009, 08:11 PM

nice, did you end up rebuilding the ep3 5-speed or it's just used?
I have one all apart needs 3rd gear set

TeamXXXrob · 11-23-2009, 02:25 PM

Quote:

Originally Posted by AMF Racing

damn that's a sexy intake manifold.

yea bought it from some douche that bought a s2k

oh and i met one of your buddies at the track sunday (white rsx) that said he was gonna by your mani but i got to it first

Quote:

Originally Posted by abp-rsx-s-t

nice, did you end up rebuilding the ep3 5-speed or it's just used?
I have one all apart needs 3rd gear set

i got it with a bad 3rd gear grind... replaced the whole 3rd gear set, sent everything to get cryoed and put it back together.

TeamXXXrob · 11-23-2009, 02:36 PM

so to recap what happened...

took my base RSX trans out, opened it up and took the gears out. swapped my Quaife LSD onto the ep3 FD and put all the ep3 gears into the base RSX case (bad idea

) and put it all back together.

Took the car out for a spin on last Tuesday night and got a really hi-pitched whine when accelerating and deeper pitched whine when decelerating. drained the oil and noticed some metal shavings... back apart it comes.

Big thanks to Joe (ep3moschini) for help thursday/friday night ripping it apart and getting it back together in record time!!

My first problem was i used the shims from the RSX trans with the ep3 gears... don't ask why. We found out that they are a different thickness. Also, we just ended up putting the gears back into the original ep3 casing.

After all that, took her for a spin Friday night and NO WHINE!!! Problem solved, off to the track...

EP3Moschini · 11-23-2009, 04:53 PM

tkrda9 · 11-26-2009, 12:02 AM

how much did the ep3 tranny help..big difference...did u run at the track yet?

11-13-2009, 12:44 PM	#1
TeamXXXrob Administrator Join Date: Nov 2005 Location: NY/MA Posts: 2,055	EP3 tranny going in... So as you all know i've been running the base RSX 5-speed transmission for the past couple years and its held up really well, but i've always felt that the gearing was too long for my power level and that my car could go faster with better gearing. Enter the 02-05 Civic Si Transmission... very similar gearing but a shorter FD which will overall make the motor rpm quicker. 5-Speed Comparison: RSX \| Civic Si 1- 3.266 \| 3.062 2- 1.88 \| 1.769 3- 1.212 \| 1.212 4- 0.921 \| 0.921 5- 0.738 \| 0.738 FD- 4.389 \| 4.764 I wanted to do this test before the end of year in similar weather conditions so i'm praying for good weather next weekend. Started taking the tranny out last night... __________________ WWW.TEAMXXXRACING.COM race team \| online parts store 02 RSX-S Turbo :: 11.466 @ 122.91 69 Camaro :: 10.24 @ 134 EMAIL: ringles@teamxxxracing.com AIM: teamXXXracing

11-19-2009, 08:11 PM	#3
abp-rsx-s-t teamXXXracing Member Join Date: Nov 2005 Location: MA-home of champions Posts: 567	nice, did you end up rebuilding the ep3 5-speed or it's just used? I have one all apart needs 3rd gear set __________________ K20A2-t J32A2 I love my hondas! Thefoat.com/abp-rsx-s

11-23-2009, 02:36 PM	#5
TeamXXXrob Administrator Join Date: Nov 2005 Location: NY/MA Posts: 2,055	so to recap what happened... took my base RSX trans out, opened it up and took the gears out. swapped my Quaife LSD onto the ep3 FD and put all the ep3 gears into the base RSX case (bad idea ) and put it all back together. Took the car out for a spin on last Tuesday night and got a really hi-pitched whine when accelerating and deeper pitched whine when decelerating. drained the oil and noticed some metal shavings... back apart it comes. Big thanks to Joe (ep3moschini) for help thursday/friday night ripping it apart and getting it back together in record time!! My first problem was i used the shims from the RSX trans with the ep3 gears... don't ask why. We found out that they are a different thickness. Also, we just ended up putting the gears back into the original ep3 casing. After all that, took her for a spin Friday night and NO WHINE!!! Problem solved, off to the track... __________________ WWW.TEAMXXXRACING.COM race team \| online parts store 02 RSX-S Turbo :: 11.466 @ 122.91 69 Camaro :: 10.24 @ 134 EMAIL: ringles@teamxxxracing.com AIM: teamXXXracing

11-23-2009, 04:53 PM	#6
EP3Moschini Forum Member Join Date: Sep 2006 Location: Northbridge, Ma Posts: 353	__________________ 1996 Civic LX 2001 Acura TL-P www.hondasofnewengland.com

11-26-2009, 12:02 AM	#7
tkrda9 Forum Member Join Date: Sep 2009 Posts: 33	how much did the ep3 tranny help..big difference...did u run at the track yet? __________________ TEAMKNIGHTRYDERZ

11-15-2009, 12:36 AM	#2
AMF Racing Forum Member Join Date: Mar 2006 Posts: 78	damn that's a sexy intake manifold. nice work man shits gonna rip

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