I think I learne something the hard way...
#1
Full Member
Thread Starter
Join Date: Nov 2010
Location: vermont
Posts: 64
Likes: 0
Received 0 Likes
on
0 Posts
I think I learne something the hard way...
so attempted to do the auto to manual trans swap today...
12a motor, 12a counter weight, 13b clutch and flywheel, first gen 13b trans.
so someone just laughed at me. the early frist gen 13b trans uses a smaller clutch then the second gen rx7's don't they?
so my question is.... will a secound gen trans mount to my 12a. or do I have to get a different clutch and flywheel. I would prefer to get a trans as I have no idea about how good the one I have is, and my brand new clutch is mounted and tqed to the 12a.
12a motor, 12a counter weight, 13b clutch and flywheel, first gen 13b trans.
so someone just laughed at me. the early frist gen 13b trans uses a smaller clutch then the second gen rx7's don't they?
so my question is.... will a secound gen trans mount to my 12a. or do I have to get a different clutch and flywheel. I would prefer to get a trans as I have no idea about how good the one I have is, and my brand new clutch is mounted and tqed to the 12a.
#2
Junior Member
Join Date: Jun 2006
Location: parksville B.C.
Posts: 37
Likes: 0
Received 0 Likes
on
0 Posts
ive tried that one before the second gen tranny will bolt up but the trans crossmember ends up too far back unless you swap the tail housing to the 12a one or do what i did and weld it in place
#3
Moderator
iTrader: (3)
Join Date: Mar 2001
Location: https://www2.mazda.com/en/100th/
Posts: 30,770
Received 2,561 Likes
on
1,822 Posts
the NON turbo FC trans uses the same clutch/flywheel as the 83-85 cars. the 82 and earlier cars use a smaller disc and pressure plate, but same flywheel diameter.
the TURBO fc's use a larger flywheel/cltuch etc etc.
the TURBO fc's use a larger flywheel/cltuch etc etc.
#4
Full Member
Thread Starter
Join Date: Nov 2010
Location: vermont
Posts: 64
Likes: 0
Received 0 Likes
on
0 Posts
I have a 84 fb trans and it does not clear over the clutch, so that means I need a turbo trans.... does a turbo trans bolt to a 12a?
I very right now I thought I had this figured out.
#6
Out In the Barn
iTrader: (9)
so attempted to do the auto to manual trans swap today...
12a motor, 12a counter weight, 13b clutch and flywheel, first gen 13b trans.
so someone just laughed at me. the early frist gen 13b trans uses a smaller clutch then the second gen rx7's don't they?
so my question is.... will a secound gen trans mount to my 12a. or do I have to get a different clutch and flywheel. I would prefer to get a trans as I have no idea about how good the one I have is, and my brand new clutch is mounted and tqed to the 12a.
12a motor, 12a counter weight, 13b clutch and flywheel, first gen 13b trans.
so someone just laughed at me. the early frist gen 13b trans uses a smaller clutch then the second gen rx7's don't they?
so my question is.... will a secound gen trans mount to my 12a. or do I have to get a different clutch and flywheel. I would prefer to get a trans as I have no idea about how good the one I have is, and my brand new clutch is mounted and tqed to the 12a.
This site will tell you the correct flywheel and clutch to use for you engine.
http://www.mazdatrix.com/faq/flywheel.htm
What year is your car?
#7
Full Member
Thread Starter
Join Date: Nov 2010
Location: vermont
Posts: 64
Likes: 0
Received 0 Likes
on
0 Posts
no its a aftermarket flywheel on the org auto weight. I did do a lot of research when getting my parts, and bought a whole 84 glse with a blown motor for the trans. the eaby sale said the kit was for a 13b.... apparently a 13bt
now I need to buy a turbo II trans or a different flywheel clutch. so pissed.
now I need to buy a turbo II trans or a different flywheel clutch. so pissed.
Trending Topics
#8
Out In the Barn
iTrader: (9)
no its a aftermarket flywheel on the org auto weight. I did do a lot of research when getting my parts, and bought a whole 84 glse with a blown motor for the trans. the eaby sale said the kit was for a 13b.... apparently a 13bt
now I need to buy a turbo II trans or a different flywheel clutch. so pissed.
now I need to buy a turbo II trans or a different flywheel clutch. so pissed.
#9
Moderator
iTrader: (3)
Join Date: Mar 2001
Location: https://www2.mazda.com/en/100th/
Posts: 30,770
Received 2,561 Likes
on
1,822 Posts
no its a aftermarket flywheel on the org auto weight. I did do a lot of research when getting my parts, and bought a whole 84 glse with a blown motor for the trans. the eaby sale said the kit was for a 13b.... apparently a 13bt
now I need to buy a turbo II trans or a different flywheel clutch. so pissed.
now I need to buy a turbo II trans or a different flywheel clutch. so pissed.
#11
talking head
the turbo R type gearbox clutch he has is 9.5 inch with 23 splines with a 330 mm ring gear
the 12a M type gearbox wants to see the 300 mm ring gear 8.5 and 9.0 clutches with 22 splines for the input shaft
he can get a 300 mm ring gear flywheel
- which take either the 215 ( up to s2 ) or 225 ( s3 and s4 NA ) clutch setups
,, but he will also need a 215 mm clutch disk in 22 splines and the correct 215 or 225mm cover pressure plate
alternatively he can buy an R type turbo gearbox ( and starter )
shorten the shifter assembly 103mm ( for s1 and earlier cars ) ,
or swap on the 12a shifter housing ( for s2 and s3 )
and he will then require a custom slip yoke end on his existing tailshaft ( or a custom shaft )
the 12a M type gearbox wants to see the 300 mm ring gear 8.5 and 9.0 clutches with 22 splines for the input shaft
he can get a 300 mm ring gear flywheel
- which take either the 215 ( up to s2 ) or 225 ( s3 and s4 NA ) clutch setups
,, but he will also need a 215 mm clutch disk in 22 splines and the correct 215 or 225mm cover pressure plate
alternatively he can buy an R type turbo gearbox ( and starter )
shorten the shifter assembly 103mm ( for s1 and earlier cars ) ,
or swap on the 12a shifter housing ( for s2 and s3 )
and he will then require a custom slip yoke end on his existing tailshaft ( or a custom shaft )
#12
Full Member
Thread Starter
Join Date: Nov 2010
Location: vermont
Posts: 64
Likes: 0
Received 0 Likes
on
0 Posts
ya, I just ordered a clutch that fits. ebay gold. will see how that works out. the last clutch I ordered was a steel flywheel and a kevlar sprung clutch it was a quality unit and it sucks that I cant use it. this one is alum flywheel (witch I don't like) and a 6 puck ceramic non sprung, Lucky for me the car is mostly a track toy/weekend warrior, but its a combo I have never tried, and am a little eh on, but I couldn't afford to get a steel flywheel combo that I liked. sometimes you just got to take risk.
#13
Full Member
Thread Starter
Join Date: Nov 2010
Location: vermont
Posts: 64
Likes: 0
Received 0 Likes
on
0 Posts
I'd buy the correct aftermarket flywheel. I think the clutch will work. It will be the same 225mm as the 13bt. Even with the 1984 trans, you will need to fab up a crossmember. I don't know enough about the shifter location on the TII to know if it will line up with the shifter hole on the tunnel. I did the auto to manual swap with all 12a stck parts and had to fab up this plate for the trans mount. (I have a couple extra holes by mistake)
#14
Moderator
iTrader: (3)
Join Date: Mar 2001
Location: https://www2.mazda.com/en/100th/
Posts: 30,770
Received 2,561 Likes
on
1,822 Posts
ya, I just ordered a clutch that fits. ebay gold. will see how that works out. the last clutch I ordered was a steel flywheel and a kevlar sprung clutch it was a quality unit and it sucks that I cant use it. this one is alum flywheel (witch I don't like) and a 6 puck ceramic non sprung, Lucky for me the car is mostly a track toy/weekend warrior, but its a combo I have never tried, and am a little eh on, but I couldn't afford to get a steel flywheel combo that I liked. sometimes you just got to take risk.
#15
Full Member
Thread Starter
Join Date: Nov 2010
Location: vermont
Posts: 64
Likes: 0
Received 0 Likes
on
0 Posts
still have to wire in the rev lights, and I think all 3 motor/trans mounts are screwed but it drove great. 6 puck its a little rough, lucky for me I live in a very rural area so stop and go, is a rare thing around here. it is street-able but its tricky to take off if your not launching. so if you live in the city don't get one.
#16
Out In the Barn
iTrader: (9)
Oh btw I test fit the 84 trans with out the fly-wheel because of this post and it all bolts up fine. 1982 12a car, 1984 13b trans and cross-member just had to use the set of bolt holes on the car that were unused with the auto-trans. no need to make a custom trans mount. and the clutch wont work had to get A whole different setup.
Thread
Thread Starter
Forum
Replies
Last Post
Nosferatu
2nd Generation Specific (1986-1992)
7
09-05-15 02:13 PM