MSM 6 speed
05-17-2010, 07:49 AM
#1
Elite Member
Thread Starter
iTrader: (2)
Join Date: May 2007
Location: Cromwell, Connecticut
Posts: 2,604
Total Cats: 16
MSM 6 speed
I am sure this question has been answered 1000 times in some other context, and i searched and I am pretty sure I know the answer but I always like getting definitive yes or no answers.
-Is the MSM 6speed a direct swap to the NA 1.8 5speed just as the regular 6 speeds are?
-Are the ratios Identical?
-Will I be fine with my stock 96 rear gearing (torsen) ?
Sorry for the "you should have searched" type questions.
-Is the MSM 6speed a direct swap to the NA 1.8 5speed just as the regular 6 speeds are?
-Are the ratios Identical?
-Will I be fine with my stock 96 rear gearing (torsen) ?
Sorry for the "you should have searched" type questions.
Reply
0
0
05-17-2010, 10:26 AM
#4
Senior Member
iTrader: (10)
Join Date: Aug 2007
Location: Fredericton, NB
Posts: 1,186
Total Cats: 4
I could only use 2 starter bolts even with the bellhousing plate off the 6speed. I think you would have to use the starter off the 6speed to have all 3 bolts used (not that it matters)
Reply
0
0
05-17-2010, 10:46 AM
#5
the MSM and NA 6-speeds are mechanically identical.
the MSM is believed to have stronger gears.
you will run higher revs in the 6 speed than you would have in the 5 speed; example:
6th gear in the 6 speed runs a higher RPM per given speed than 5th gear in the 5 speed.
So if you're looking for lower freeway RPMs, swapping in a 6-speed will not be "like adding that extra gear to your 5-speed"
You would need a different rear end if that's your goal.
You won't hurt anything with your current rear end though.
The NB starter is a direct swap, requires no re-wiring, and shaves a SUBSTANTIAL amount of weight.
the MSM is believed to have stronger gears.
you will run higher revs in the 6 speed than you would have in the 5 speed; example:
6th gear in the 6 speed runs a higher RPM per given speed than 5th gear in the 5 speed.
So if you're looking for lower freeway RPMs, swapping in a 6-speed will not be "like adding that extra gear to your 5-speed"
You would need a different rear end if that's your goal.
You won't hurt anything with your current rear end though.
The NB starter is a direct swap, requires no re-wiring, and shaves a SUBSTANTIAL amount of weight.
Reply
0
0
05-17-2010, 01:58 PM
#9
Answered on M.net
http://forum.miata.net/vb/showthread...starter+weight
for those afraid of the dark:
http://forum.miata.net/vb/showthread...starter+weight
for those afraid of the dark:
Originally Posted by Keith@FM:
With the introduction of the NB, Mazda gave us a new starter motor. It's quite a bit smaller than the NA version, and has a different bolt pattern for the bellhousing mount. Well, it turns out the 1994-97 automatic cars also have a different starter motor with the regular NA 5-speed bolt pattern.
If you want to install a lighter starter motor but don't want to lose one of the three mounting holes, the 1994-97 automatic is an option.
Weights:
1990-97 5-speed (and 1990-93 auto): 9.80 lbs
1994-97 automatic: 7.05 lbs
1999-05: 6.00 lbs
If you want to install a lighter starter motor but don't want to lose one of the three mounting holes, the 1994-97 automatic is an option.
Weights:
1990-97 5-speed (and 1990-93 auto): 9.80 lbs
1994-97 automatic: 7.05 lbs
1999-05: 6.00 lbs
Reply
0
0
05-17-2010, 04:13 PM
#10
Elite Member
Thread Starter
iTrader: (2)
Join Date: May 2007
Location: Cromwell, Connecticut
Posts: 2,604
Total Cats: 16
Thanks for all the quick info guys.
While you are in such a giving mood....
The 5 speed shifter assembly DOES NOT bolt in to the 6 speed right? I need the shifter with the trani?
While you are in such a giving mood....
The 5 speed shifter assembly DOES NOT bolt in to the 6 speed right? I need the shifter with the trani?
Reply
0
0
05-17-2010, 08:05 PM
#14
This is the best I have, maybe Jared can take a better one.
__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
Reply
0
0
05-17-2010, 11:16 PM
#18
Yes, thanks.
There is oil on both sides (forward and rearward) of the rear orange gasket location, running down both sides of the transmission, coming from as high as visible. It might be possible that the entire tranny was overfilled through the shift area, but doubtful since it was last removed to replace a squealing pilot bearing by a "real mechanic"
There is oil on both sides (forward and rearward) of the rear orange gasket location, running down both sides of the transmission, coming from as high as visible. It might be possible that the entire tranny was overfilled through the shift area, but doubtful since it was last removed to replace a squealing pilot bearing by a "real mechanic"
Reply
0
0
