Anybody interested in a rx7 tii tranny adapter plate ?
 

If someone is interested in an adapter plate please inform me because I'm going to copy mine in a few days at a machine shop. The material will be either aluminum or ss.

Yes, I'm very interested.

Yes, me!

All that's needed to make this transmission and plate work with our stock diff is a custom driveshaft right? Do we need a custom clutch as well?

I'm nearly 100% positive that the input shaft has the same # of splines and is the same size.

Subscribed. Curious about cost and what else is needed to make this work.

Hello, I dont know the cost yet. Its obvious that if we are many I can get a pretty decent price from the machine shop. I would like to know the interest for start.

For the full conversion you are going to need, a modified miata clutch with rx7 splines, a modified stock miata driveshaft and a custom transmission mount.

So until now we have

1.JayL
2.faeflora
3.cueball1

slightly OT... if anyone needs someone to build a custom disc, i know just the guy. he set me a up with a custom disc for my toyota trans conversion. PM me

Any update on this? On a side note, is the bolt pattern the same on the T2 as a Miata?

I don't know for sure if it's the same.

Anyway, the first plate is ready and succesfully fitted in my miata.
The whole conversion isnt ready yet so you'll have to wait for testing it a little more to ensure that the fitment is perfect.

The problem we are solving right now is the custom mount.
The beautiful with this conversion is that the rx7 tranny will be mounted in the same mounts that stock miata tranny is mounted. No welding at the frame will be needed and the mounting will be steady as stock.

If the bolt pattern is the same, has anyone tired just shortening the input shaft by half inch instead of using the spacer/adapter plate? This would also bring the shifter closer to the stock Miata location. As for the mounting of the transmission, it's pretty easy to adapt the cross bracket that is used in the rx7 and completely eliminating the miata ppf.

subscribed cause depending on cost this could be full of win.

Ok, I didn't understand you fully in your previous question..
The bolt pattern is NOT the same. It is totally different.

1.JayL
2.faeflora
3.cueball1
4.disturbedfan121

So here it is in it's final shape.

http://img84.imageshack.us/img84/1555/dsc0199t.th.jpg

How was the piece made?

Also did you figure out the transmission mount?

The material we finally decided to use was iron. The main reason was to keep the material cost low.

Yes we figure out the mount too. We will use the same bolts that stock tranny uses at the same position.
I will upload a pic later.

Weight?

You're not serious are you?

IRON? or did you mean to say steel?

Iron? :bowrofl: So much for thread full of win. Thread full of boat anchors now.

I'm sorry but I'm not getting the point of your answers. What's so wrong with the iron as a material?

Maybe it is a misunderstanding between english and greek.

Iron is way too heavy and unnecessary, we'd prefer aluminum, and eat the costs. How much does this iron plate weigh?

Steel isn't much lighter, but I would rather have something less brittle. I would rather pay more to avoid having 18-19th century skillet technology between my block and transmission. But yeah, aluminum would be ideal. I wouldn't really mind steel though, something that size couldn't weigh more than a few pounds more than aluminum. Though weight does add up. At least its low on the car though.

It's not a problem for me to use aluminum. The cut will be cnc machined, so the material is not a problem. I'll have detailed costs for the two materials soon.

This is the mount (and it is made from aluminum)

http://img687.imageshack.us/img687/4530/dsc0208k.th.jpg
http://img198.imageshack.us/img198/4...c0209zl.th.jpg

Updates?
- more details on that ppf adapter, specifically how it's mounting to the tail shaft
- pricing... and shipping to the US

And for those interested, know you're going to need a hybrid drive shaft (Miata tail, TII input) and a clutch disc solution- which means your current Miata clutch at least re-hub'd to a tII spline/diameter.

steel is best for this sort of thing IMO, stainless is a bit pricey and aluminum is a little soft.

besides, my 3/8" steel adapter plate only weighs 9 lbs.

I was hoping to mill off 1/2" from the face of the bell housing and then weld the aluminum adapter plate to the bell housing. This way i can get the shifter in the stock location.. that was the plan anyway.

He just needs to send us the CAD file. Shipping from Greece would be fail on these.