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Discussion Starter #1
What's up everyone. Just found out about this forum had to join in. Current ongoing project is my 99 miata with a Turbo II driveline swap. Been on the road almost 2 years now and about 20,000 miles. Loads of fun to drive and getting better all of the time. :)
Been looking around the forum and I see a lot of great looking Roadsters and I look forward to swapping ideas and picking brains for good Ideas.

Steve Moore
 

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Discussion Starter #7
Thanks, I will post some more pix. Also if anyone wants a big batch of build pix send me your e-mail and I will be glad so send them out to you.
Yes it is a V mount set up. Also I put the AC condensor horizontal below and behind the Radiator. That way it does not add to the heat. 292WHP at 12psi. and I drive it to work evey day.

Steve
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great work! You should load all your build photos into the 'album' on this forum. I'm sure lots of people are interested in how you did the swap.
 

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WOW! Awesome rotary swap!!

Are you located in Florida? I think I recognize your car. Were you at Russell Mazda in Clearwater for the Rotary Revolution a couple of months ago? If so, I met you there.

Either way, good to have you here!
 

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Discussion Starter #14
Yes that was me in Clearwater. And I do like to call it a "Z" mount and everyone just looks at me funny.
I will be down for a little while I just discovered a crack in the nose housing of my Diff. It's hard mounted to a backbone bar and it is taking too much load. I am getting ready to paint anyway so I I think I am going to fab some kind of torque bar for the front of the Diff. In order to do that I will need some space above the Diff. so the stock fuel tank will come out and a larger(more range) fuel cell will go in under/in the trunk/spare tire area. This will also allow me to fix the cornering pickup problem at low fuel levels. So the chain reaction has hit. But it will all be good in the end.

Steve
 
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Yes that was me in Clearwater. And I do like to call it a "Z" mount and everyone just looks at me funny.
I will be down for a little while I just discovered a crack in the nose housing of my Diff. It's hard mounted to a backbone bar and it is taking too much load. I am getting ready to paint anyway so I I think I am going to fab some kind of torque bar for the front of the Diff.
Hey Steve,

I did a FCTII trans and rear end swap and fabbed a bracket to recycle the rear diff nose bushing.

See pics here:

http://billwilner.myphotoalbum.com/view_album.php?set_albumName=album07

Here's a closeup of the fabricated bracket and bushing:

 

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Discussion Starter #16
Yes that was me in Clearwater. And I do like to call it a "Z" mount and everyone just looks at me funny.
I will be down for a little while I just discovered a crack in the nose housing of my Diff. It's hard mounted to a backbone bar and it is taking too much load. I am getting ready to paint anyway so I I think I am going to fab some kind of torque bar for the front of the Diff.
Hey Steve,

I did a FCTII trans and rear end swap and fabbed a bracket to recycle the rear diff nose bushing.

See pics here:

http://billwilner.myphotoalbum.com/view_album.php?set_albumName=album07
Bill that is what I am looking to do. How much movement up does your bracket give you?

Steve
 

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Discussion Starter #18
How is your car for traction? All of the suspension guy's I talk to say I need to allow for some movement(flex) upward of the nose of the Diff. and this will help with traction.

Steve
 
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How is your car for traction? All of the suspension guy's I talk to say I need to allow for some movement(flex) upward of the nose of the Diff. and this will help with traction.
Steve
I don't know why you would want the nose to be able to move, especially given the proximity to the gas tank.

Bryan Downs did a solid diff nose mount on his 10 second Miata drag car but eventually it cracked. He advised me to use a bushing.

My car is still a work in progress. But the diff mounts were designed and fabbed by an experienced RX-7 race car builder. BTW, I used Mazda Comp bushings on the "wings" of the diff.
 

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Discussion Starter #20
Yea I know space is an issue. I think the bushing should give it enough flex to not put too much load on the housing.

The movement upward is to aid in traction. It softens the torque impact to the rear tires. Usually you have a adjusable bushing or a unit that has springs that can be changed out to tune it to your setup.

Steve
 
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