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RX-8 with FD trans?

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Old 03-19-10, 03:36 PM
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RX-8 with FD trans?
Hey does anyone know if you can put a fd trans on a rx8 i know that the shifter is set further back on the fd trans than it is on the 8's trans and i think the length is close to the same but not perfect any help would be great.
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Old 03-19-10, 04:20 PM
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Why not get the RX8 5speed trans?
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Old 03-19-10, 06:19 PM
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well i have a fd trans and there is no 5speed manual trans for rx8. The reason for this swap is i need a stonger trans for FI
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Old 03-19-10, 09:02 PM
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The transmission will fit the engine. You may have to modify the PPF.
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Old 03-19-10, 09:53 PM
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Originally Posted by 9000k
well i have a fd trans and there is no 5speed manual trans for rx8. The reason for this swap is i need a stonger trans for FI
Sorry but you are mistaken..

Rx8 was offered in Japan with 5 speed.. I have actually imported about 10 of them for various people in the last few years...

I will post a pics if you dont believe..

HERE YOU GO....

1st pic is RX8 5 speed trans
2nd pic is RX8 6 speed trans

Bolts right in....Shifter is in the correct place..easy as pie...
Attached Thumbnails RX-8 with FD trans?-rx8-5-speed.jpg   RX-8 with FD trans?-rx8-6-speed.jpg  
Last edited by Japan2LA; 03-19-10 at 10:00 PM.
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Old 03-21-10, 02:32 PM
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Is it possible for you to measure the distance from the front of the bellhousing (mating surface to engine) to the shifter for the 5 speed box ? any info on the 5 speed ratios?
Thanks
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Old 03-21-10, 09:37 PM
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could u swap the tail housing?they look very similar
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Old 03-21-10, 09:45 PM
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Originally Posted by mario1386
could u swap the tail housing?they look very similar
Not possible.. but why would you want to?

They are both the same length..
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Old 03-21-10, 09:46 PM
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Originally Posted by costas
Is it possible for you to measure the distance from the front of the bellhousing (mating surface to engine) to the shifter for the 5 speed box ? any info on the 5 speed ratios?
Thanks
They are the same length

Shifter is in the same location on both..
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Old 03-22-10, 12:08 AM
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Rudy?
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Old 03-22-10, 08:19 PM
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Anyone interested in getting an RX8 5 speed trans should pm me. I will have 2 in the next container.
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Old 03-22-10, 09:37 PM
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this 5-speed that you mention, is it based on the old Turbo cases? if not, why would someone want to replace the 6-speed? just curious ....
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Old 03-23-10, 12:19 AM
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Originally Posted by diabolical1
this 5-speed that you mention, is it based on the old Turbo cases? if not, why would someone want to replace the 6-speed? just curious ....


My guess is the 5 speed gears are wider so it may hold more power.
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Old 03-25-10, 06:28 PM
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Originally Posted by diabolical1
this 5-speed that you mention, is it based on the old Turbo cases? if not, why would someone want to replace the 6-speed? just curious ....
The center section is same as FD3S not FC3S

The 6speed is super weak.. They Break all the time..

The 5 speed is actually a stronger trans

Thats why..
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Old 03-25-10, 10:36 PM
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indeed the 6 speed is weaker. 9000k has my old fd tranny and they are about the same legnth but the shifter is in a slightly different position bolt pattern matches up i think the only the thing that is needed is maybe built up the rear end. after that if the driveshaft is long enough your in business if not the get one that does. that should do it. feel free to correct me if im forgetting anything
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Old 05-20-10, 08:59 PM
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Originally Posted by Japan2LA
The center section is same as FD3S not FC3S

The 6speed is super weak.. They Break all the time..

The 5 speed is actually a stronger trans

Thats why..
Is it the gears or the synchros that are weak? I was actually thinking of swapping the 6-spd in to my FD.
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