M10, S14 & M20 6 Speed Adapter Plates with How-To Guide

[TobyB]

Tilton is so fantsy.  They didn't have that bearing when I was farting with it,

so I used a Saab 900 slave.  And a spacer.

 I don't think the 900 version is big enough for the

RX8, tho- it was a tight fit on the Nissan trans.  

A Saab 900 input shaft is smaller in diameter than the shift linkage.

 

t

 

[Dudeland]

5 hours ago, Ian said:

Right, I got that TO bearing number after calling Tilton and explaining what I wanted to do.  The bearing fits perfectly on the rx8 bearing guide tube and the locating rod that keeps the unit from spinning threads into one of the bolts that hold the guide tube down.  I like the Tilton because the TO bearing is mounted to a threaded collar, so you can adjust the position relative to the clutch disc by spinning the bearing in or out on the collar.  Then you lock it in place with the locating rod.

So that is the one. i was hoping that the locating rod would line up on the RX8.  I am kinda getting excited. 

 

[MikeN2]

Tom Lingard has informed me that he will not be selling anymore kits as he is moving away, the guys that emailed him may already know that by now. Cheers.

[Dudeland]

Ok, so I am curious.  What setup would I need to measure concentricity?

 

I have dials and mag bases, bore gages, mic's etc.. I am scratching my head as to how to set it up.  I have a 5 speed on the floor, so I should be able to measure the concentricity of the M10 portion of the adapter plate.   We are on a stay at home order , so jumping in a car to go and pick up a RX8 transmission is not a great idea right now. 

 

Regards

[Lorin]

18 minutes ago, Dudeland said:

Ok, so I am curious.  What setup would I need to measure concentricity?

 

I have dials and mag bases, bore gages, mic's etc.. I am scratching my head as to how to set it up.  I have a 5 speed on the floor, so I should be able to measure the concentricity of the M10 portion of the adapter plate.   We are on a stay at home order , so jumping in a car to go and pick up a RX8 transmission is not a great idea right now. 

 

Regards

You will need a Rx8 bellhousing (if it locates the main transmission in a circular register) plus the front case of the transmission with the input bearing if not.  You will be measuring the concentricity of the input bearing bore in the transmission case. 
 

I don’t recall seeing any locating dowels on this adapter plate so you would need to machine for dowels if you want to avoid doing this job every time you remove the bellhousing from the adapter. 

 

 

 

 

 

..

Edited April 23, 2021 by Lorin

[Dudeland]

Blingity bing ding dang ding dong...  Guess what I just got my hands on.... Think of the total carnage that this will facilitate.  Blown up clutches, broken axels, driveshaft support bearings.  WOO HOO!  

 

 

2 hours ago, Lorin said:

You will need a Rx8 bellhousing (if it locates the main transmission in a circular register) plus the front case of the transmission with the input bearing if not.  You will be measuring the concentricity of the input bearing bore in the transmission case. 
 

I don’t recall seeing any locating dowels on this adapter plate so you would need to machine for dowels if you want to avoid doing this job every time you remove the bellhousing from the adapter. 

 

 

 

 

 

..

..... or I just send it..... 

[Lorin]

56 minutes ago, Dudeland said:

 

 

 

..... or I just send it..... 

Yep.  Even a blind monkey gets a banana sometimes. 
 

[Dudeland]

7 minutes ago, Lorin said:

Yep.  Even a blind monkey gets a banana sometimes. 
 

Why do I feel that everybody that knows what they are doing with this sort of setup just "felt a disturbance in the force". 

[evil02]

4 hours ago, Dudeland said:

Ok, so I am curious.  What setup would I need to measure concentricity?

 

I have dials and mag bases, bore gages, mic's etc.. I am scratching my head as to how to set it up.  I have a 5 speed on the floor, so I should be able to measure the concentricity of the M10 portion of the adapter plate.   We are on a stay at home order , so jumping in a car to go and pick up a RX8 transmission is not a great idea right now. 

 

Regards

 

I'm sure there are a million on youtube but here is a good one - https://www.bowlertransmissions.com/bellhousing-alignment-install-guide/

[Dudeland]

Here is a couple of manuals for the RX8 transmission. It doesn't provide a spec on the runout for the transmission, but it has some other good info.   Does anybody know what the contricity should be?  I am thinking about  about 0.008 (ish).   

 

I see that to measure it properly you need the bellhousing, so I am thinking a I band saw a grenaded transmission to harvest the bellhousing.  We could have it as a community tool for these sort of conversions.  

 

https://www.rotaryheads.com/PDF/RX8/5Transmissions.pdf

 

The variants in the transmission. 

http://www.rx8help.com/transmissions.html

 

A better site

Edited April 24, 2021 by Dudeland
Posted to correct thread.

[Lorin]

On 1/7/2020 at 11:08 AM, Lorin said:

.020 total runout is way out of spec in my opinion. The fact there is enough slop in the product to change the TIR that much says something. 
 

.007 TIR maximum is what I use and the .003 TIR that your customer achieved is great. 
 

It sounds like everyone that buys this product should be verifying and correcting the concentricity, in my opinion of course.

 

This transmission option sounds like a fun choice for a 2002. 

I posted this earlier in this thread. 

[Dudeland]

I read that, but where did you find the spec? Or is that what you usually shoot for, is 0.007 or less? 

[Lorin]

3 hours ago, Dudeland said:

I read that, but where did you find the spec? Or is that what you usually shoot for, is 0.007 or less? 

I can’t  remember where I learned everything but the most recent example of that spec is from Silver Sport Transmissions from where I have installed a couple their T56 6 speed setups. They won’t warranty the brand new T56 unless you get the TIR .007 inch or less.   
I have achieved around TIR .003 inch on those installs. 

 

 

 

 

..

 

Edited April 24, 2021 by Lorin

[Ian]

5 hours ago, Dudeland said:

Here is a couple of manuals for the RX8 transmission. It doesn't provide a spec on the runout for the transmission, but it has some other good info.   Does anybody know what the contricity should be?  I am thinking about  about 0.008 (ish).   

 

I see that to measure it properly you need the bellhousing, so I am thinking a I band saw a grenaded transmission to harvest the bellhousing.  We could have it as a community tool for these sort of conversions.  

 

I'm not sure if this helps, but the bell housing unbolts.  This pic is of the unbolted bell housing sitting on the garage floor.

 

[Dudeland]

2 hours ago, Ian said:

I'm not sure if this helps, but the bell housing unbolts.  This pic is of the unbolted bell housing sitting on the garage floor.

 

That actually helps a lot.  Anything tricky about unbolting it?