miata 5sp internals in fc 5sp

Black91n/a · 11-23-2009, 07:33 AM

Quote:

Originally Posted by fc nut

so, a 12a trans internals will work or do you mean just bolt the trans to my engine? i didn't know they were interchangeable. do i need the driveshaft as well?

You need to change the tail shaft housing so that the trans will bolt to the crossmember and so that the shifter is in the same place. You can also change the front section, but I don't think it's required.

fc nut · 11-24-2009, 12:09 AM

which year would be a good strong 12A trans? what about the GSL SE trans?

Black91n/a · 11-24-2009, 06:24 AM

I'd pick the one with the best gearing, but if there's a difference in strength, the later one's are probably slightly preferable.

Whizbang · 12-29-2009, 12:37 PM

Quote:

Originally Posted by fc nut

which year would be a good strong 12A trans? what about the GSL SE trans?

gslse transmission has no real differences as far as strength is concerned.

Just a different fifth gear. (these are for 84-85)

12a 5th: 0.758

13b 5th: 0.807

fc nut · 01-06-2010, 01:20 AM

i want a 5th gear that my car doesn't fall on it's face after i run 4th gear out.

***TitaniumTT*** · 01-06-2010, 09:51 AM

Isn't that the point of an OVERDRIVE?

Buy a J-Spec S5 TII trans - .84 overdrive. Personally I'd rather have something in the low .7's for my car, get a little better highway mpg's

fc nut · 01-07-2010, 12:40 AM

i don't care too much for OD.the problem i have and any other n/a car, after i shift at 120 from 4th it barely accelerates. i want it to keep accelerating if i want it to.

***TitaniumTT*** · 01-07-2010, 03:54 AM

make more hp or change the final drive ratio

fc nut · 01-12-2010, 08:46 PM

true. i need to replace my trany anyway. power is on my to do list.

fc nut · 07-17-2010, 08:03 PM

well,i picked up another stock s4 trans yesterday. the price was right $50,so we'll see how it works. if it doesn't,i'll get a 12a trans.

11-24-2009, 12:09 AM	#32
fc nut member Join Date: Jun 2008 Location: Lebanon,Ohio iTrader: (0) Posts: 282 Rep Power: 17	which year would be a good strong 12A trans? what about the GSL SE trans? __________________ leaving my carbon footprint....one start up at a time

01-06-2010, 01:20 AM	#35
fc nut member Join Date: Jun 2008 Location: Lebanon,Ohio iTrader: (0) Posts: 282 Rep Power: 17	i want a 5th gear that my car doesn't fall on it's face after i run 4th gear out. __________________ leaving my carbon footprint....one start up at a time

01-06-2010, 09:51 AM	#36
*TitaniumTT* Test Whore - Admin Join Date: Mar 2008 Location: Right Behind you son iTrader: (4) Posts: 4,581 Rep Power: 10	Isn't that the point of an OVERDRIVE? Buy a J-Spec S5 TII trans - .84 overdrive. Personally I'd rather have something in the low .7's for my car, get a little better highway mpg's __________________ -The Angry Stig- DGRR 2009, 2011, 2012 & 2013 - Best FC DEALS GAP!! WOOHOOOO!!!!! 2015 Audi S4 - Samantha - Zero Brap S4 2004 RX8 - Jocelyn - 196rwhp, 19mpg fuel to noise converter 2000 Jeep Cherokee Sport - Wifey mobile - Now with 2.5" OME lift and 30" BFG AT KO's! So it begins 1998 Jeep Cherokee - 5 spd, 4" lift, 33" BFG's - Rotary Tow Vehicle 1988 'Vert - In progress 1988 FC Coupe - Gretchen -The attention whore BEAST! I'm a sick individual, what's wrong with you? I'm pure Evil I'm still insane, in the best possible way. I think Brian's idea of romance is using lube. Your rage caused the meteor strike in Russia. The Antichrist would be proud of his minion. You win with your thread. Most everything It's a truck with a steel gate on the back. Just a statement of fact Motec M820, AIM dash, ported 13B-RE Cosmo, 6-spd trans, 4.3 Torsen, custom twin wg fully divided mani, Custom 4" split into 2x 3" exhaust, Custom HMIC, Custom custom custom custom I like to welder stuff.... No Bolt-ons allowed. Dyno'ed @ Speed1 Tuned by me - 405rwhp on WG.... WM50 cuming soon. *-Angry Motherfcker Mode ENGAGED-**

01-07-2010, 12:40 AM	#37
fc nut member Join Date: Jun 2008 Location: Lebanon,Ohio iTrader: (0) Posts: 282 Rep Power: 17	i don't care too much for OD.the problem i have and any other n/a car, after i shift at 120 from 4th it barely accelerates. i want it to keep accelerating if i want it to. __________________ leaving my carbon footprint....one start up at a time

01-07-2010, 03:54 AM	#38
*TitaniumTT* Test Whore - Admin Join Date: Mar 2008 Location: Right Behind you son iTrader: (4) Posts: 4,581 Rep Power: 10	make more hp or change the final drive ratio __________________ -The Angry Stig- DGRR 2009, 2011, 2012 & 2013 - Best FC DEALS GAP!! WOOHOOOO!!!!! 2015 Audi S4 - Samantha - Zero Brap S4 2004 RX8 - Jocelyn - 196rwhp, 19mpg fuel to noise converter 2000 Jeep Cherokee Sport - Wifey mobile - Now with 2.5" OME lift and 30" BFG AT KO's! So it begins 1998 Jeep Cherokee - 5 spd, 4" lift, 33" BFG's - Rotary Tow Vehicle 1988 'Vert - In progress 1988 FC Coupe - Gretchen -The attention whore BEAST! I'm a sick individual, what's wrong with you? I'm pure Evil I'm still insane, in the best possible way. I think Brian's idea of romance is using lube. Your rage caused the meteor strike in Russia. The Antichrist would be proud of his minion. You win with your thread. Most everything It's a truck with a steel gate on the back. Just a statement of fact Motec M820, AIM dash, ported 13B-RE Cosmo, 6-spd trans, 4.3 Torsen, custom twin wg fully divided mani, Custom 4" split into 2x 3" exhaust, Custom HMIC, Custom custom custom custom I like to welder stuff.... No Bolt-ons allowed. Dyno'ed @ Speed1 Tuned by me - 405rwhp on WG.... WM50 cuming soon. *-Angry Motherfcker Mode ENGAGED-**

11-24-2009, 06:24 AM	#33
Black91n/a Rotary Fan in Training Join Date: Mar 2009 iTrader: (0) Posts: 39 Rep Power: 0	I'd pick the one with the best gearing, but if there's a difference in strength, the later one's are probably slightly preferable.

01-12-2010, 08:46 PM	#39
fc nut member Join Date: Jun 2008 Location: Lebanon,Ohio iTrader: (0) Posts: 282 Rep Power: 17	true. i need to replace my trany anyway. power is on my to do list. __________________ leaving my carbon footprint....one start up at a time

07-17-2010, 08:03 PM	#40
fc nut member Join Date: Jun 2008 Location: Lebanon,Ohio iTrader: (0) Posts: 282 Rep Power: 17	well,i picked up another stock s4 trans yesterday. the price was right $50,so we'll see how it works. if it doesn't,i'll get a 12a trans. __________________ leaving my carbon footprint....one start up at a time

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