Freds new (rwd FE3 related) toy :-) [Gearbox]

[fredio54]

I bought this a few days ago from a nice bloke called Andrew who has swapped a boosted fj20 nissan motor into his mazda ute. Thanks Andrew!

http://i50.photobucket.com/albums/f3...3-1024x768.jpg

http://i50.photobucket.com/albums/f3...2-768x1024.jpg

http://i50.photobucket.com/albums/f3...1-1024x768.jpg

I believe jake has one of these, but with slightly better ratios and a home job bell housing. This one is factory original FE Type 2 mazda gearbox with the rear mount and shifter and tailshaft ext in the right places for the ute. It came from a 92ish facelift courier f2 12v.

Draggin88 : do you have this box or the one in the background? The one in the background is a type 1 ute box i got as a spare, i'll be selling it soon.

Fred.

[shwine617]

wow, thats looks like a very beefy trans. Those bolt up directly to the fe3? How much power do they hold?

very nice!

[Samol_hok]

Originally Posted by shwine617

wow, thats looks like a very beefy trans. Those bolt up directly to the fe3? How much power do they hold?

very nice!

how can you say there beefy when you havent even looked at your input shaft end plays and inspected the gears for pitting and spalling silly

[carcenomy]

Your comment is like saying that a half-shagged Toyota T-50 five speed is worse than a reasonably good Toyota K-50 five speed. That's not the case, the K-50 is a single piece aluminium box, where the T-50 is the legendary 'Celica box' as it was called here, with the split cast case with removable bellhousing, and all the internal gears are between 1/4 and 1/2" bigger.

It's the same comparison between a Type 1 and Type 2 Mazda box.

[fredio54]

22mm wide gears in there from memory, its basically the "turbo II" box with factory fe bell housing. it weighs heaps more, and to that other guy, the box has good synchros, and with 100hp on the front, instead of the 280 the 13b turbo puts out, i doubt its in bad shape!

schwine : apparently about 400, dannys miata used this box to run 10s.

fred.

[carcenomy]

oooh that sounds delicious... must be Mazda's equivalent to the Toyota W-series box.

[Draggin88]

Fred: I have the tranny in the background of your pic in my truck, the type one box. However I am working on getting a type II tranny from an RX-7 - just switch the bell housing and it bolts right up to the fe3/ f block. With the type II I'll be geared much better esp with my rx-7 turbo rear diff lsd unit which has 4.10 gears. Fifth gear sucks on the highway in my truck right now. It's a tree puller though! lol Good find fred!

[fredio54]

actually i screwed up, the box in the background, is type 2, the other one (my new one) is type 3 aka R tranny (known as turboII), christ knows what a type 1 is... wanna buy a bellhousing? the one off of your existing box wont bolt up, completely different. theres a thread or three with the different bell housing options listed in it.

fred.

[Draggin88]

fred. I thought the us 87-91 rx-7 n/a trans and the 86-93 b2200 trans had interchangable bell housings. If not then there are some seriously misinformed people on the mazdtrucking.com website.

[fredio54]

i thought all utes bar the b2600 had the smaller box, but this one is factory f2 12v b2200! so i was wrong. i thought you wanted to change the bellhousing off the smaller box onto the bigger turboII box, wrong again? i now assume you mean change the bellhousing from one small box to the other to get better ratios, correct now? that definitely can be done, might be better to swap the tail ext aswell to use the std crossmember, and shifter location. when you have both side to side, you will know if thats the way to go.

[Draggin88]

fred, right! I will swap the tailshafts as well for shifter location!

[fredio54]

new info : w series toyota boxs (which are widely respected) weigh 35kg
type 2 mazda (smaller one) weigh 35kg
type 3 mazda aka R type weighs 43kg!!! mmmmm
i saw a huge nissan box at a wreckers the other day that was steel, it was a nissan from a 4wd with a 4.2 diesel. huge... love to know what that weighed!!

[carcenomy]

If a W-series Toyota box can tolerate huge horsepower Supras, I'd hate to think what this Type 3 R-type box can tolerate.

[fredio54]

well, i saw one on trademe a while back with at least two pairs of gears stripped (only 4th still going). i rang the guy, and he said he had a 13b with a bigger turbo, and the gears just went on the shift while "cruising" queen st one night... i think it comes down to how you treat them too, i wouldnt be surprised if the toyota boxs reputation exceeds its actual capability. still, i know how to drive, and never broke the smaller one with much abuse (on and offroad) and many donuts, so i think it should suit me well.

for reference, the t50 is a smaller box than the smaller mazda one, and their is also a little box called the k50.

fred.

[carcenomy]

K40 and K50 were for the Starlet and Corolla of the era (K-series engines... shock and suprise.)

T40 and T50 were for the Corolla, Corona and Celica. Usually mated to a T-block, but in later years it was used with the 1S and the 4A. The T-boxes can handle some reasonable power, and are the 'Celica box' referred to by V8 boys. They were standard fitment to TE Corollas (2T-G) and the legendary AE86 (4A-GE).

W55 onward are Celica, Supra, Soarer and Hilux I think? Originally developed for the extra torque the R-block made over a T-block, it grew with the big motors and was fitted behind M-blocks and the more modern JZ-blocks. They can hold some exceptional amounts of power indeed.

But that said, like you say mate if you drive like a knobgobbler, you'll lunch it. There's no two ways about it. So if you get some loser with a seven driving like a menace with a reasonably powerful 13B, it's always gonna go horribly wrong, just like a leadfooted animal with a 350 Chev in front of a T-50. It never goes well. :-)