2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Rear end strength - N/A vs. Miata

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Old 01-21-02 | 04:30 PM
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FPrep2ndGenRX7's Avatar
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Rear end strength - N/A vs. Miata

Just curious if anyone has thought about this. The gear sets are the same except for the pinion shaft length. I would think they would be about the same. The Miata has more gear sets available than we do.

And while I'm on the subject why do the 2nd Gen cars have that long pinion shaft to start with? Is it just to clear the rear subframe?
Old 01-21-02 | 04:58 PM
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The Miata torsen diff can easily support 300hp.

https://www.rx7club.com/forum/showth...threadid=45714
Old 01-21-02 | 06:34 PM
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Miatas kick ***.
Old 01-21-02 | 06:53 PM
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so why cant the na fc's support 300hp too? i think they are good for it

mike
Old 01-21-02 | 07:07 PM
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Same thing as Miata/1st-gen/RX-2/RX-3 just the pinion length is different.
Old 01-21-02 | 08:16 PM
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Lots of positive answers. I like that.

Old 01-21-02 | 08:28 PM
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We have a thrasher 91 Miata at my shop, we went through 3 diffs so far...

www.sydewayz.com
Old 01-22-02 | 04:47 PM
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www.solomiata.com has lots of diff info.

Did you keep putting the early type diffs back in the '91? That's why...
Old 01-23-02 | 01:11 PM
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Oh man, It has a 13BT and we are using the NA FC rear ends.
It will swing it for a few minutes....... then...CRUNCH!!.
Old 01-23-02 | 03:10 PM
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Originally posted by TwinCam13BT
Oh man, It has a 13BT and we are using the NA FC rear ends.
It will swing it for a few minutes....... then...CRUNCH!!.
Damn, that sounds like one hell ov a fun car. Miata with a 13BT...Its like a go kart on crack
Old 03-01-02 | 03:06 AM
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In my race car I use a Torsen from Guru Motorsports here in OZ, I have one in both a Gen 1 and a Gen 3!
Old 03-01-02 | 08:53 AM
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Originally posted by twister
In my race car I use a Torsen from Guru Motorsports here in OZ, I have one in both a Gen 1 and a Gen 3!
Hey twister, WTF? Do you work for Guru Motorsports or something? Just perusing the forum as I usually do, I've come across no fewer than THREE posts, all of which say the same thing "I use a diff from Guru motorsports, it's not built with crap materials like everywhere else"

Uh, if that were true, then how come we're NEVER HEARD OF THEM? And in any case, we KNOW you use and like their diffs, we GET it. THANK you.

Brandon
Old 03-01-02 | 08:59 AM
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There is a write up of a guy with a 2nd gen running 10's in the quarter with the STOCK diff from an NA. BUT he is running an automatic which is easier on the driveline than standards.
Old 03-01-02 | 10:34 AM
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Originally posted by No7Yet


Hey twister, WTF? Do you work for Guru Motorsports or something? Just perusing the forum as I usually do, I've come across no fewer than THREE posts, all of which say the same thing "I use a diff from Guru motorsports, it's not built with crap materials like everywhere else"

Uh, if that were true, then how come we're NEVER HEARD OF THEM? And in any case, we KNOW you use and like their diffs, we GET it. THANK you.

Brandon
I know seriously see the post

https://www.rx7club.com/forum/showth...050#post474050
Old 03-01-02 | 09:39 PM
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Sorry, since I run there stuff in my circuit car here in OZ I love the products, but may be I have gone overboard trying to say that :-( I will shut up re the stuff!

I run a Gen 1 in the 'Improved Production' class, have a look at the club site if you are interested.

Cheers

www.ipravic.com.au
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