Which gearbox for Race / Trackdays?

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04-06-2010, 08:58 PM

#61

JKav

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Quote:

Originally Posted by Savington

The MSM boxes are cryotreated

Orly?

04-06-2010, 09:10 PM

#62

hustler

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uh oh, dad is here.

04-07-2010, 02:50 AM

#63

Savington

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Quote:

Originally Posted by JKav

Orly?

Oops, not cryotreated. Shotpeened.

http://www.miata.net/faq/brochures/2...z_brochure.pdf

crap, I wonder how many times I've made that mixup.

04-07-2010, 12:23 PM

#64

JKav

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Quote:

Originally Posted by Savington

Oops, not cryotreated. Shotpeened.

http://www.miata.net/faq/brochures/2...z_brochure.pdf

crap, I wonder how many times I've made that mixup.

Hmm... I wonder if there's really any difference between the MSM 'box and the non-MSM 'boxes of the same vintage. Knowing how automakers work (or don't), Mazda may have just shotpeened them all.

Is there a part number difference between MSM and non-MSM '04-'05 gearboxes?