The 6 speed tranny for the Tiburon is called the MFA60.
http://www.aichikikai.co.jp/english/mission.html
However in order to bolt this to an alpha or beta (which use the m5af3 and mfbf2 accordingly), i think you would have to swap the bell housing off of the alpha or beta trans. onto the MFA60. With all this said the final gear in the MFA60 here is two low for any stock beta and ANY alpha motor.
Here's the gear ratios...
M5AF3 1.5L(A) 1st:3.462 2nd:2.053 3rd:1.370 4th:1.031 5th:0.838 R:3.250 FGR:3.942
M5AF3 1.5L(L) 1st:3.615 2nd:2.053 3rd:1.370 4th:0.971 5th:0.825 R:3.250 FGR:3.650
M5AF3 1.6L(L) 1st:3.615 2nd:2.053 3rd:1.370 4th:1.031 5th:0.825 R:3.250 FGR:3.842
M5BF1 1.6L(J) 1st:3.083 2nd:1.947 3rd:1.285 4th:0.935 5th:0.756 R:3.083 FGR:4.592
M5BF1 1.8L(J) 1st:3.462 2nd:1.950 3rd:1.393 4th:1.061 5th:0.878 R:3.250 FGR:3.650
M5BF1 1.8L(R) 1st:3.462 2nd:1.950 3rd:1.393 4th:1.061 5th:0.878 R:3.250 FGR:3.650
M5BF1 2.0L(R) 1st:3.462 2nd:1.950 3rd:1.393 4th:1.031 5th:0.825 R:3.250 FGR:3.650
M5BF1 2.0L(J) 1st:3.462 2nd:1.950 3rd:1.393 4th:1.061 5th:0.878 R:3.250 FGR:3.650
M5BF2 2.0L(G) 1st:3.462 2nd:2.053 3rd:1.393 4th:1.061 5th:0.837 R:3.250 FGR:4.056
M5BF2 2.0L(D) 1st:3.615 2nd:2.053 3rd:1.393 4th:1.061 5th:0.837 R:3.250 FGR:3.650
M5GF1 2.7L(T) 1st:3.231 2nd:1.952 3rd:1.296 4th:0.943 5th:0.775 R:3.455 FGR:4.063
MFA60 2.0L(K) 1st:3.153 2nd:1.944 3rd:1.333 4th:1.055 5th:0.857 6th:0.704 R:3.005 FGR:4.678
MFA60 2.7L(G) 1st:3.153 2nd:1.944 3rd:1.333 4th:1.055 5th:0.857 6th:0.704 R:3.005 FGR:4.428
A:X3 Accent L:LC/LC2 Accent J:J2 Elantra D:XD Elantra R:RD2 Tiburon G:GK Tiburon K:Korean Tiburon
Notice the MFA60 made for the beta overseas has a higher FGR. This is because of the increased amounts of torque from the beta to the delta. This setup would probably only be acceptable for a turbo/supercharged beta.
The quickest setup in terms of off the line acceleration with the accent is to mate a GK Tiburon tranny with a 4.667 FGR kit from kspec.com onto it.
Last thing, The MFA60 used with the V6 tib. is considered relatively weak compared to the MFA60 used in the Nissan Sentra SE-R.
[Edited by kojaxian_neonix on Jan 17, 2006 7:57 PM]