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is there any why to make a f series transmission handle more power .. like i high quality grade gears and Differential upgrade?

unless u got the $$$$ for custom work then no there nothing really out there for make ur f-series trans handle more power...

ur better off with a g-series trans

and what car has a g-series trans ? and to put it in a mx3 would you have to rework the mounts?

this should help you

http://www.mx-3.com/phpBB3/viewtopic.php?f=24&t=16446


VII. Transmission Information:

To clear up any confusions, you must understand that all of the cars listed above have transmissions that will directly bolt onto ANY of the engines in this FAQ. YES YOUR TRANSMISSION WILL BOLT UP!!! Now that you know that, you might be wondering about possibly swapping your transmission for a stronger G-series transmission. If you have a 323, MX-3 or Protege DX, you have a Mazda F-series gearbox. This transmission should hold up well to any of these engines. It has taller gear ratios which are geared for fuel economy over performance and smaller, 22mm diameter axles. It has been known to hold up to about 200 horsepower and ft-lbs of torque without reliabilty issues when not abused.

The Protege LX, Escort GT & LX-E and Tracer LTS all have G-series transmissions. These transmissions are used in numerous Mazdas including all 2.0 4-cylinder & 2.5 V6 MX-3, MX-6, 626, Ford Probe and 01+ Protege's. They have been known to hold up to over 300hp and ft-lbs of torque when not abused. They use 24mm axles and utilize an intermediate shaft to reduce torque steer when accelerating off the line. All G-series transmission have either a 4.11 or 4.39 final drive ratio and short gear ratios for quicker acceleration at the expense of fuel economy.

To swap a F-series for a G-series, you will need to get the axles, intermediate shaft and hubs with brakes from a 90-94 Protege LX, 92-94 MX-3 GS or 91-96 Ford Escort GT/LX-E or Tracer LTS. Swapping those parts out will allow you to use one of these transmissions. Be sure to get the transmission mount brackets & mounts when you buy your transmission as they will be needed to mount it.

Clutch & Flywheel Information:

There are 5 different sized clutches worth noting that can be used on these engines. Here is the list:

B3-E: 7 1/8" Clutch Disc, 18-spline shaft, 3/4" hub
B6-E & B6-ME: 7 1/2" Clutch Disc, 20-spline shaft, 7/8" hub
B6-DE & B8-ME: 7 7/8" Clutch Disc, 20-spline shaft, 7/8" hub
BP-DE & K8-DE: 8 1/2" Clutch Disc, 22-spline shaft, 15/16" hub
2.0 SPI (From 97+ Escort) & KL-DE (Probe GT, MX-6 LS): 8 7/8" Clutch Disc, 22-spline shaft, 15/16" hub

The 20-spline shaft clutches are for F-series transmissions only. You *should* be able to use the bigger-sized clutch on a B6-E or B6-ME flywheel for more clutch holding power, although it has not been confirmed. The 22-spline shaft clutches are for G-series transmissions only. You can use the bigger-sized 8 7/8" clutch from the Ford Probe / Escort on a stock BP-DE flywheel for more clutch holding power.

The flywheels from all B-series engines will interchange with one another and use 6-bolts to secure them to the crankshaft. K-series V6 engines use a 8-bolt flywheel and thus are not interchangable.

does the Protege 91-'94 DX have a g series transmission ?
i know the 1991-1994 Mazda Protege DX ---motor will swap but will the trans swap with it


G15M-R trans can i still bolt up a bp to it this is the motor it has on it RF-MDT
or would a F5M-R trans work better the the stock one or is it a f series as well?

found it on here

http://www.protegefaq.net/" onclick="window.open(this.href);return false;