[rodhog]

I can pick up a G-series on my own and H series

I can barely pick up most Autos from a 626 fluid or no fluid. mind you i'd say it's due to the converter.

Toyota - I've picked up a MR2 turbo box - it's not THAT MUCH HEAVIER. about 10KG. maybe 15KG at the most. even 5Kg, for some ?
To put in perspective, the toyota box uses in effect thinner casing in some areas but stronger bearing end plates and more effort into making the box adaptable to different cars and different engines.

oh and even the 6 speed from levin is about same as a H box. I found it the same lifting into the wagon, for friend - I was thinking I should install it into my wagon.

Depending on what you break in your gearbox - determines the areas to strengthen.

Toyota as always figure they should overengineer most things. like the Rods in 2JZ - make RB30-RB26 rods look silly ?

The amazing thing I have found is and not surprised either, that other car makers will go about it differently. From honda nissan etc different approach even when racing.

But I would definatly say if you goal is absured amounts of power and drang racing - it's more then likely a good way to go.

Mazda did Nissan ( for obvious reasons - same supplier of gearbox at the time)
increase the size of your normal box - to make it stronger.

Again - mainly cost.


Oh one question.

what series is a 6 speed from last model Celica like a 1998 model. I think it's 2ZZ motor or something.

 

[rodhog]

the toyota box is not much heavier. Simple answer there. 5-15Kg depending on spec. including the 4WD versions.


but just on that point of desgin - Cheif Tool
the H box is still quite large. Even a G series. - in perspective. Gearboxs put behind some V8's in This country (AUS) the internals and overall size of some 5 speed's ain't much bigger. Had to handle more torque and power.

In perspective - they are desgin to handle factory outputs only - NOT above factory outputs. Or abuse etc.