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Tranny swap
Posted: October 26th, 2006, 8:21 pm
by BlackedOutMX3
Hey all, My name is Rick and I'm new to the site. I have been trying to get on here for like a week now, but anyways.....I had a question on the manual trannys for my car. It is a 1992 Mazda mx-3 with the 1.6 sohc, my problem is that I have gone through 2 trannys now and would like to install a stronger one. Will a Pro LX tranny bolt up to this motor? What other choices do I have?
P.S. Sorry if this has been answered before, but i tried to search....with no luck.
Posted: October 26th, 2006, 9:12 pm
by atlantamx3
yes.
Posted: October 27th, 2006, 10:56 am
by BlackedOutMX3
can I use my old axles?
Posted: October 27th, 2006, 1:06 pm
by atlantamx3
Use the axles designed for the tranny you are using.
Posted: October 27th, 2006, 1:10 pm
by atlantamx3
Other things you may need from a Protege LX to complete this swap:
Flywheel
Clutch
starter
slave cylinder
top tranny mount & bracket (drivers side)
I am pretty sure that a clutch for the SOHC will not work on the 1.8 tranny due to different spline counts. So if you get the clutch for the BP, then you will also need the flywheel & starter.
Posted: October 27th, 2006, 7:16 pm
by Boris
I'm pretty sure that you can use the 1.6L Miata flywheel and clutch too... I know that the flywheel will bolt on, and I have heard and researched to find out whether the 1.6L Miata clutch will work on the prolx tranny and supposedly it will...but I don't trust anything till I try it myself. The good thing about the 1.6L stuff working is you can buy a lightened flywheel for a reasonable price.
Posted: October 27th, 2006, 10:43 pm
by jaydog5678
atlantamx3 wrote:yes.
It won't work, unless you modify the jack-shaft to bolt onto the back of the block. There's only one person on the UBB that I know of who has done the swap.
BlackedOutMX3 wrote:Hey all, My name is Rick and I'm new to the site. I have been trying to get on here for like a week now, but anyways.....I had a question on the manual trannys for my car. It is a 1992 Mazda mx-3 with the 1.6 sohc, my problem is that I have gone through 2 trannys now and would like to install a stronger one. Will a Pro LX tranny bolt up to this motor? What other choices do I have?
P.S. Sorry if this has been answered before, but i tried to search....with no luck.
I would suggest a trans from a later model Protege 95+. What went wrong with the previous 2 gearbox's? You should not be breaking these with a SOHC 1.6. What's your driving style like??
Posted: October 27th, 2006, 10:44 pm
by jaydog5678
Boris wrote:I'm pretty sure that you can use the 1.6L Miata flywheel and clutch too... I know that the flywheel will bolt on, and I have heard and researched to find out whether the 1.6L Miata clutch will work on the prolx tranny and supposedly it will...but I don't trust anything till I try it myself. The good thing about the 1.6L stuff working is you can buy a lightened flywheel for a reasonable price.
The 1.6 and 1.8 components will not interchange. The clutch diameters are different btwn the 2.
Posted: October 28th, 2006, 8:02 pm
by BlackedOutMX3
1.6 trannys are known to have weak differentials, the first time it went out I had been running it hard (drag strip) and the second time it lasted a few months, but went out for no reason in the middle of fourth gear, just cruising. Believe me, I know how to drive a stick though man if that's what you're wondering. I plan on a BP-T motor swap soon, and I might as well put a tranny in that can be used in the swap.
Posted: October 28th, 2006, 8:06 pm
by BlackedOutMX3
but anywho......I'll need the protege lx tranny, flywheel, clutch, axles, starter, tranny mount and bracket......the slave cylinder comes on the tranny anyways, right? anything else?
thanks bruthas
Posted: October 28th, 2006, 8:10 pm
by atlantamx3
jaydog5678 wrote:atlantamx3 wrote:yes.
It won't work, unless you modify the jack-shaft to bolt onto the back of the block. There's only one person on the UBB that I know of who has done the swap.
hmmm didnt think of that....
Posted: October 29th, 2006, 9:51 am
by jaydog5678
BlackedOutMX3 wrote:but anywho......I'll need the protege lx tranny, flywheel, clutch, axles, starter, tranny mount and bracket......the slave cylinder comes on the tranny anyways, right? anything else?
thanks bruthas
If you're planning on going with a BP-T, then yes, the Protege trans is a good and robust gearbox. I can't seem to break one, even with 340hp. You don't need a new starter. The Mx-3's starter will work.
Posted: October 29th, 2006, 6:21 pm
by CarMan1
yeh i blew 2 trannies too, and i can drive a stick fine, the 3rd time i had the one tranny completely rebuilt by a shop nearby, they replaced alot of the gears and synchro's, this thing is amazing still, over 5k miles later, and really smooth still....
Posted: October 29th, 2006, 7:09 pm
by BlackedOutMX3
All the shops around where I live said that they won't rebuild my tranny and that it'd be too expensive anyways, I couldn't find anyone that would. But yeah, thanks for the info on the tranny swap!
Posted: October 29th, 2006, 11:23 pm
by atlantamx3