what is the safe max RPM

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06-27-2011, 01:15 PM

turbo2332

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what is the safe max RPM

what can a 12 valve handle? differences with a stock harmonic balancer vrs an sfi approved balancer?

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06-27-2011, 01:32 PM

12vcummins96

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safe is 4k anything over that and you need an aftermarket balancer

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yarbees (07-09-2011)

06-27-2011, 05:56 PM

94 12valve

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Quote:

Originally Posted by turbo2332

what can a 12 valve handle? differences with a stock harmonic balancer vrs an sfi approved balancer?

well north of 5k

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