Balance shafts

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Balance shafts

Postby JimD282 » Mon Jan 28, 2013 4:15 pm

I'm trying to find out, for sure, if the 2.0 MZR, used in the MX5 has balance shafts, or not.
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Re: Balance shafts

Postby Chris Thompson » Mon Jan 28, 2013 9:04 pm

I'm pretty sure I read ( the 2.5 was the smallest size with balance shafts. Joe at Dynotronics probably knows the answer if Brian can't answer for sure.
'99 Base Sport with bolt-on hardtop and '08 PRHT GT. I love them both. SCCA, PCA, BMW San Diego region #105
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Re: Balance shafts

Postby grippy » Tue Jan 29, 2013 6:52 am

The 2.0 does not use balance shafts. The 2.5 does, not sure about the 2.3.
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06 Miata
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Re: Balance shafts

Postby JohnT019 » Wed Apr 10, 2013 10:08 pm

I have a 2.5 block on my NC from a Mazda 6. I removed the balance shafts, removed the gear from the crank and used the stock NC sump. All works well with no issues. You will need to use the timing chain and guides from the 2.5L and a the Cosworth tensioner is a good move.
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