I am on AUSROTARY but will not be putting up a build thread on there I thought that its a little more FB related here and did not want all the AUSROTARY heroes, but any answers to my gearbox mount questions would be great.KYPREO wrote:Nice work from another Aussie!I recognise this car from its old DUZ69Z days. Are you DUZ69Z from AusRotary? If not, do you happen to post there. I haven't seen this build on there.
RX075's s3 AUS spec Tuff street car build.
Re: RX075's s3 AUS spec Tuff street car build.
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Re: RX075's s3 AUS spec Tuff street car build.
S1-3 rubber mount should be the same.
Back in the UK for the summer, maybe longer......
- KYPREO
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Re: RX075's s3 AUS spec Tuff street car build.
You'd be surprised. All the heroes have moved from the forum to other platforms, making the forum a much more pleasant place. This is a nice forum though and great to get different perspectives, hence my starting a log here too.RX075 wrote:I am on AUSROTARY but will not be putting up a build thread on there I thought that its a little more FB related here and did not want all the AUSROTARY heroes, but any answers to my gearbox mount questions would be great.
As for the gearbox:
All 74-85 RX manual transmission mounts are the same. The auto mounts differ, but they still have 2 bolt holes. All of the 1st gen crossmembers (manual and auto) have 2 bolt holes to bolt to the chassis (one on each side). If yours has 4 bolt holes it's not from a 1st gen and I'm not sure why it's like that.
Here's the auto mount:

The s4-5 gearbox crossmember has a central rubber isolator and 4 bolt holes to the chassis (2 on each side), like so:

It then has the two 45 deg rubber mounts and a Y-shaped bracket, like so:


There's 3 ways you can fit a s4-5 box to a 1st gen RX-7:
1) use that eBay adaptor and the standard s1-3 gearbox mount and crossmember;
2) use the standard s5 45 deg rubber mounts and s5 crossmember, modifying the crossmember by redrilling the holes to line up where the nutserts are located in the chassis and spacers to adjust to the correct height; or
3) make a custom cross-member.
http://www.AusRotary.com
My AusRotary build log: http://ausrotary.com/viewtopic.php?f=21&t=89142
My RX7FB build log: http://rx7fb.com/viewtopic.php?f=4&t=3348
WTB: s3 grey gear boot and gear knob: http://rx7fb.com/viewtopic.php?f=19&t=3424
My AusRotary build log: http://ausrotary.com/viewtopic.php?f=21&t=89142
My RX7FB build log: http://rx7fb.com/viewtopic.php?f=4&t=3348
WTB: s3 grey gear boot and gear knob: http://rx7fb.com/viewtopic.php?f=19&t=3424
- spirit r
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Re: RX075's s3 AUS spec Tuff street car build.


- Stefano the Sphinx
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Re: RX075's s3 AUS spec Tuff street car build.
Hi,
Car is looking good!
I too am in Sydney, I was just wondering if you still have the silver shell that you killed?
I need to chop some bits out for my project.
Tried to PM you, but the message is stuck in my outbox.
Cheers
Car is looking good!
I too am in Sydney, I was just wondering if you still have the silver shell that you killed?
I need to chop some bits out for my project.
Tried to PM you, but the message is stuck in my outbox.
Cheers

Stefano is my Sphynx cat! I spelt it wrong when setting up my user name! Hahaha.
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Re: RX075's s3 AUS spec Tuff street car build.
On phpBB forums like this one, that means your PM hasn't been read yet.Stefano the Sphinx wrote:Tried to PM you, but the message is stuck in my outbox.

http://www.AusRotary.com
My AusRotary build log: http://ausrotary.com/viewtopic.php?f=21&t=89142
My RX7FB build log: http://rx7fb.com/viewtopic.php?f=4&t=3348
WTB: s3 grey gear boot and gear knob: http://rx7fb.com/viewtopic.php?f=19&t=3424
My AusRotary build log: http://ausrotary.com/viewtopic.php?f=21&t=89142
My RX7FB build log: http://rx7fb.com/viewtopic.php?f=4&t=3348
WTB: s3 grey gear boot and gear knob: http://rx7fb.com/viewtopic.php?f=19&t=3424
- Stefano the Sphinx
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- Joined: Wed May 25, 2016 12:31 pm
- Location: Sydney Australia
Re: RX075's s3 AUS spec Tuff street car build.
Hi KYPREO,
Cool thank you for that info. Much appreciated.
Cheers
Cool thank you for that info. Much appreciated.
Cheers
Stefano is my Sphynx cat! I spelt it wrong when setting up my user name! Hahaha.