TII Transmission Adapter plate for miata!!!
#1
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TII Transmission Adapter plate for miata!!!
It's been talked about forever and ever and Here they are, adapter plates to put a TII transmission onto a miata motor. TII transmissions are significantly larger than stock miata boxes and are documented to hold well into the 400-500whp range. I broke 2 miata transmissions with 200whp.
CAD Designed, CNC machined, made in the U.S.A. Plates are laser scanned and converted into solid works and CNC machined for a quality, final product.
$450 SHIPPED in the CONUS with the plate and hardware you need (Plate to motor, trans to plate, and starter.)
Stock miata parts used:
miata slave cylinder, throw out bearing, pilot bearing, 5 speed starter
What you need to buy:
NC miata clutch disc. (1.8L clutch/flywheel only)
(replacement discs are CHEAP)
Turbo II transmission
Custom Driveshaft (I recommend Shaftmasters (aluminum) but local driveshaft shops are usually capable)
What you need to make/modify:
Space out stock FC clutch fork with 2 washers (make up for plate thickness)
PPF solution
(Differential mount/transmission mount, Adapting Trans to accept PPF)
(several roadster owners have documented solutions to this problem already)
Notch V shape in bellhousing to accept miata starter
Not for dog box transmissions, do not put plate on your dog
PM me with any questions, inquiries, or if you just want to buy this and stop worrying about transmissions.
CAD Designed, CNC machined, made in the U.S.A. Plates are laser scanned and converted into solid works and CNC machined for a quality, final product.
$450 SHIPPED in the CONUS with the plate and hardware you need (Plate to motor, trans to plate, and starter.)
Stock miata parts used:
miata slave cylinder, throw out bearing, pilot bearing, 5 speed starter
What you need to buy:
NC miata clutch disc. (1.8L clutch/flywheel only)
(replacement discs are CHEAP)
Turbo II transmission
Custom Driveshaft (I recommend Shaftmasters (aluminum) but local driveshaft shops are usually capable)
What you need to make/modify:
Space out stock FC clutch fork with 2 washers (make up for plate thickness)
PPF solution
(Differential mount/transmission mount, Adapting Trans to accept PPF)
(several roadster owners have documented solutions to this problem already)
Notch V shape in bellhousing to accept miata starter
Not for dog box transmissions, do not put plate on your dog
PM me with any questions, inquiries, or if you just want to buy this and stop worrying about transmissions.
#7
You'll need to cut off the starter portion of the TII bellhousing because of the lack of exhaust / downpipe clearance in the miata.
The RX-7 TII slave will fit without having to cut into the miata frame rail as you do if you keep the stock slave.
The RX-7 TII slave will fit without having to cut into the miata frame rail as you do if you keep the stock slave.
Last edited by Adamsm; 03-26-2013 at 05:03 PM.
#9
TII tranny into Miata!!
The bleed nipple on the Miata slave points to the left of the engine bay while the RX-7 slave points up.
#14
Nice man glad to see you finally got them done!! They came out great.
It's prob close to $100 in raw materials alone, plus the design work, machining, gathering the hardware, etc etc. I think the price is more than fair.
I ditched mine. It's easy enough to just fab new trans/diff mounts. RX7/miata have the PPF/exhaust on opposite sides of the transmission from one another.
The cut PPF you are referring to is for the diff mount, not the trans. THere are a variety of options available for the diff mount out there.
Concerning the shifting, when I shift into 2, 4, R, the miata boot is a little tight, but it doesn't interfere with shifting. I didn't have to modify the console at all. A keen eye can tell it isn't centered in the console opening, but it never bothered me. Shifter placement, at least for me is also right where I'd like it, ergonomically speaking.
Concerning the shifting, when I shift into 2, 4, R, the miata boot is a little tight, but it doesn't interfere with shifting. I didn't have to modify the console at all. A keen eye can tell it isn't centered in the console opening, but it never bothered me. Shifter placement, at least for me is also right where I'd like it, ergonomically speaking.