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Old 03-08-2011, 01:55 PM   #1
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Default DIY gearbox rx-7fd 3s with the first side oem gearbox

Those days i was launch the new gearbox of rx-7fd 3s into my car.I was read some post from the net and from the miataturbo.gr and i was start my new DIY with a lot of notes for how i do it.fisrt of all i buy the gearbox and i have the normal oem gearbox 5speed(because my car some months now it has power 330 horses and i was broke two of oem gearbox)
I make a new system to center the axis


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and then i cut the turtlle and from the rx-7 near in the bolts and see like this:


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I was buy the alluminium 70-75 40x40cm and he had to connected them


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this picture is upside down now


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and now i connected with the gearbox


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then i stick the allouminium bolts to connect the turtlle with gearbox


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the gearbox now:


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then i drill it and screwed


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the rear base i fix it removable


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and the gearbox is ready and now some fotos with the engine together



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and the inside side is resembles like normal oem



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that's little from the greece side DIY jobs.
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Old 03-08-2011, 02:44 PM   #2
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Thats pretty sweet, how does it perform in the miata?
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Old 03-08-2011, 03:15 PM   #3
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This is one case where I really enjoyed the engrish..only because it's clear your mechnical skills are pretty good. Hellofa great modification and should take anything you can throw at it.

How is the gearing compared to the Miata transmission? Much longer now?
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Old 03-08-2011, 03:24 PM   #4
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Quote:
Originally Posted by Doppelgänger View Post
This is one case where I really enjoyed the engrish..only because it's clear your mechnical skills are pretty good. Hellofa great modification and should take anything you can throw at it.

How is the gearing compared to the Miata transmission? Much longer now?
Don't forget the cat... he has a cat.
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Old 03-08-2011, 03:26 PM   #5
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Nice first post!
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Old 03-08-2011, 03:27 PM   #6
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Turtle = bellhousing.

Anything else you guys want me to translate?
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Old 03-08-2011, 03:34 PM   #7
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Very nice explanation. Does the gearcase contact the under body of the car anywhere?
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Old 03-08-2011, 05:25 PM   #8
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I have my old FD transmission sitting in my garage and a 5 spd Miata trans in my basement... hmmm... weekend project?

How did you take the measurements to have the PPF line up correctly? And what about the pull clutch mechanism on the FD trans? What did you do to convert it to push, and what throw out bearing/clutch fork etc. did you use?
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Old 03-08-2011, 06:09 PM   #9
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Nice entry post. I started to read the thread and got scared then realized that one you are from another country. Two that you managed to do in your back yard what a lot of people will not attempt in a shop with good tools. Hell of a job I hope it holds up well for you.
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Old 03-08-2011, 07:39 PM   #10
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Quote:
Originally Posted by falcon View Post
I have my old FD transmission sitting in my garage and a 5 spd Miata trans in my basement... hmmm... weekend project?

How did you take the measurements to have the PPF line up correctly? And what about the pull clutch mechanism on the FD trans? What did you do to convert it to push, and what throw out bearing/clutch fork etc. did you use?
Why do I feel like I've read you claiming that the FD transmission is weak much like the miata transmission?

Edit: I feel like I've read this claim because I HAVE read this claim.

https://www.miataturbo.net/showpost....1&postcount=34

So whats the deal? Are these strong or not?
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Old 03-08-2011, 08:32 PM   #11
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Quote:
Originally Posted by Doppelgänger View Post
This is one case where I really enjoyed the engrish..only because it's clear your mechnical skills are pretty good. Hellofa great modification and should take anything you can throw at it.

How is the gearing compared to the Miata transmission? Much longer now?
the felling of transmition is very good,and the upper speed with 5 gear in 7000rpm is 248Km\h is not to long the oem gearbox is 235Km\h
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Old 03-08-2011, 08:34 PM   #12
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The fc and fd transmission are holding well up to 500hp.
Here are the ratios
http://www.solomiata.com/Drivetrain.html

Dogits your mechanical skills rock for real but your engreeklish are funny as hell!
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Old 03-08-2011, 08:34 PM   #13
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Quote:
Originally Posted by Pen2_the_penguin View Post
Thats pretty sweet, how does it perform in the miata?
the perfom is like the oem is realy the same and he stop the noise from bearing in the pressure plate.
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Old 03-08-2011, 08:37 PM   #14
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Quote:
Originally Posted by Reverant View Post
Turtle = bellhousing.

Anything else you guys want me to translate?
thanks my friend Ren for explanasion but in the greece the bellhousing told it turtle
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Old 03-08-2011, 08:42 PM   #15
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Never knew a miataturbo.gr existed.
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Old 03-08-2011, 11:25 PM   #16
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Quote:
Originally Posted by falcon View Post
I have my old FD transmission sitting in my garage and a 5 spd Miata trans in my basement... hmmm... weekend project?

How did you take the measurements to have the PPF line up correctly? And what about the pull clutch mechanism on the FD trans? What did you do to convert it to push, and what throw out bearing/clutch fork etc. did you use?
Looks like the stock miata clutch system. Pretty nice how about the drive shaft? How much total labor and money. Nice build
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Old 03-09-2011, 12:06 AM   #17
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this should be a sticky, to bad i dont own a miata, someone should translate it to help the rest out too.
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Old 03-09-2011, 12:54 AM   #18
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Quote:
Originally Posted by sixshooter View Post
Does the gearcase contact the under body of the car anywhere?
Please tell me that I'm not the only one that read this post in the engrish thread and thought "turbo not hit block"

To the original poster, excellent DIY project.
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Old 03-09-2011, 06:18 AM   #19
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Quote:
Originally Posted by musanovic View Post
Looks like the stock miata clutch system. Pretty nice how about the drive shaft? How much total labor and money. Nice build
Thanks i used the factory cluth system with offcorse the 1.8 flywheel and pressure plate.drive shaft is modified in greece i was buy the first side of rx-7 and connected with the mx-5 shaft.the total cost for all this with the new gearbox and modified disk with rx-7 center total amount 800euro
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