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yeah in order of strength i'd assume it goes

TII > n/a FC > tapioca pudding > b2200
 

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keep in mind, the n/a rx7 transmissions arent exactly the strongest things. the rx7 has no discernible torque output. throwing the torque of the F2T at it might have some undesired results.
Ehhhh... rotaries aren't low on torque. They just lack the big nasty stupid and rough spikes that we're used to.

I don't think the strength of any RWD trans that will bolt up to an F2T will be an issue. Again, unless you're looking for ludicrous power.

The plus side is that RWD trans are EASY to replace. If you happen to break a $50 n/a FC trans, oh well.
 

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the n/a rotaries really don't stress components like the F2T does though. power doesnt kill parts, torque does. doesnt matter how smoothly the torque is applied, every part has its breaking point.
 

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Discussion Starter #66
What do you mean? if you use a b2200 bell it will be in the right place. What do you want me to mesure? I know I sound like I'm being mean but I really don't know what you want me to mesure. You might have to draw it.

I just finished my rx-7/b2200 transmission so I'm probably not going to be able mesure anything on the inside of that one.Only a few finishing touches left on that one. My two other transmissions are in pieces.
 

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Now that I can see the pictures at home, can you give some bell housing pictures of both the NA RX-7 and B2200?.. either if you don't have both.
 

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Discussion Starter #68
Miata




Ignor the big thing on the top middle of the picture that is from something else. The rest is from a miata.




I'm pretty sure I posted these before, Anyhow:shrug:
RX7-------b2200


B2200

Rx-7



Here is my mess and almost fully completed hybrid transmission.



More mess under the table :) Between these two pictures there are 2 other transmissions somewhere Ha ha.
 

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Discussion Starter #70
Oh and if its any help to anyone I stumbled apon someting interesting. The Starion guys upgrade their transmission to the turbo II transmission. Aparently its stronger than theirs. they way they do this is basically the same way I did mine.

The old carb. b2600s of 1987 and 1988 had Mitsubishi montero engines. Essentialy they took the b2600 bell and put it on the rx7 transmission. Then presto, now it bolts up to the starion engine. Sleep well guys God Bless. I'm done :)
 

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WOW, thanks for those great pictures. I never realized how far back the shifter is on the top of a RWD transmission.

If you could get some rough measurements, diagonals / total width, height, etc, that'd be awesome too.
 

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My plan was to use the full B2200 transmission, but I don't have one here yet for the mock up. I suppose I need that no matter what just to bolt up to the F2T so I should just get it anyway. If it won't fit the need, then I'll look in to the other two mentioned here.
 

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What do you mean? if you use a b2200 bell it will be in the right place. What do you want me to mesure? I know I sound like I'm being mean but I really don't know what you want me to mesure. You might have to draw it.
I'm guessing he wants the measurement of the spacing between the main and counter shafts for the N/A and turbo trannies.

Shaft distance is proabably the single most important thing that determines ultimate stregnth in any non planitary transmission.

It determines the maximum median diameter of the gears in the trans and the larger the gear diameter the stronger the gear.

Thats why it's a bad idea to throw a very steep ring and pinion onto something like a GM 10 F body 10 bolt, the steeper the ratio the smaller the pinion must be (for a given carrier family) and the more likely it is to break.

The same goes for the gear sets in your trans, the sets where one gear is very small (lower gears and over drives) are naturaly weaker than sets where the gears are the same size or nearly so.

Spacing the shafts farther apart allows for larger gears across the board for a given set of ratios.
 

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My need was the external dimensions for mounting up on the chasis. Specifically the distance from the engine edge of the bell housing (B2200 in this case) to the shifter.

Strength probably won't be an issue as I won't be able to put the power down any time soon in lower gears.
 

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What do you mean? if you use a b2200 bell it will be in the right place. What do you want me to mesure? I know I sound like I'm being mean but I really don't know what you want me to mesure. You might have to draw it.

I just finished my rx-7/b2200 transmission so I'm probably not going to be able mesure anything on the inside of that one.Only a few finishing touches left on that one. My two other transmissions are in pieces.
I'm guessing he wants the measurement of the spacing between the main and counter shafts for the N/A and turbo trannies.

Shaft distance is proabably the single most important thing that determines ultimate stregnth in any non planitary transmission.

It determines the maximum median diameter of the gears in the trans and the larger the gear diameter the stronger the gear.

Thats why it's a bad idea to throw a very steep ring and pinion onto something like a GM 10 F body 10 bolt, the steeper the ratio the smaller the pinion must be (for a given carrier family) and the more likely it is to break.

The same goes for the gear sets in your trans, the sets where one gear is very small (lower gears and over drives) are naturaly weaker than sets where the gears are the same size or nearly so.

Spacing the shafts farther apart allows for larger gears across the board for a given set of ratios.
yea, all that and what I'm really looking for is to see if parts will swap from one tranny to the other. shaft spacing is key to knowing this (among other things). Eh too late now tho...
 

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Discussion Starter #77
Well I may still put the other transmissions back together just so I don't have loose parts laying around everywhere.

I can still do stuff on the miata transmission as its still intact. It just has the casing taken off.
 

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i got $525 a gt block an N/A head with like 20 miles on it pistons rods crank vj11 turbo manny... what do i have to do??? i need a little help.
 

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Discussion Starter #79
i got $525 a gt block an N/A head with like 20 miles on it pistons rods crank vj11 turbo manny... what do i have to do??? i need a little help.
I'm really not sure what your asking. putting that stuff in a garage or something to keep it out of the rain would be a good start.

Once you have done that, start searching the site for answers. Many questions have already been answered. And just asking the same questions over and over gets really old, really fast for the veterans. Once you have taken the time to actually search and find your own answers, the older members are much more inclined to answer.

From your question and since I'm working on a mx7 project I'm guessing you want to know how to put a f2t in a rx7? have you read the whole thread yet? Or do you want me to spoon feed you the answers?

I know I may seem a little harsh, but when someone pm's me a question I have no problem helping or pointing them in the right direction. I just don't like people depending on others for all their answers.

Don't let this put you off or let the grumpy members on this site bother you. You'll soon understand how everything works and you'll be good.

I know you've been a member since last year but Welcome to the site!
 
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