Use FC trans in FB
#3
Lapping = Fapping
iTrader: (13)
I have an FC tranny in my car and I don't even think about the ratios. The part I needed to pay attention to was swapping the tailhousing from an FB trans to this one. The shifter housing etc too. I also swapped in a new return spring and did the front and rear seal. Competition trans mount as well. Of course I use hockey puck motor mounts so the whole system drives really nice with only a bit of vibes. I'm not interested in driving a rubber band which is what you get with stock duty stuff, in my opinion.
#4
Senior Member
My best transmission is built from 3 different donors. The tailshaft housing is from an FB to fit the crossmember, the middle section with all the gears and the shifter housing are from a Miata to get close ratios, and a better shifter detent system, and the bell housing is from an FC, the FC bell housing has some strengthening ribs and some cooling ducts for the clutch.
#6
Waffles - hmmm good
iTrader: (1)
My best transmission is built from 3 different donors. The tailshaft housing is from an FB to fit the crossmember, the middle section with all the gears and the shifter housing are from a Miata to get close ratios, and a better shifter detent system, and the bell housing is from an FC, the FC bell housing has some strengthening ribs and some cooling ducts for the clutch.
required? I'd like to see a thread about how this was done.
#7
Senior Member
The only modification is that you have to shorten the Miata input shaft, the directions are on the Mazdatrix site. to get the input shaft out you have to completely disassemble the gear clusters which requires a few special tools to pull the gears and synchro hubs.