Alternative timing belt material...

[Stephen]

It puts added wear on the belt. Your spinning the engine the same rpm but your doing so at a much faster rate.

Also if your planning on doing upgrades to raise the rev limit like stiffer springs or a steeper cam, again more stress on the belt.

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what

[Vivek]

It puts added wear on the belt. Your spinning the engine the same rpm but your doing so at a much faster rate.

How does that work?

[nando]

let's put it this way: the timing belt is either 50k or 5 years, whichever comes first. it's the age of the material more than anything. the rubber will degrade due to heat cycles. RPM has little to do with it.

[Dj Buttchug]

It puts added wear on the belt. Your spinning the engine the same rpm but your doing so at a much faster rate.

Also if your planning on doing upgrades to raise the rev limit like stiffer springs or a steeper cam, again more stress on the belt.

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no

[FLG]

So your telling me higher rate springs, spinning the engine higher than factory , and doing so at a faster rate has NOTHING to do with timing belt wear?

Nando, would the belt not be going through more heat cycles faster? Wouldn't a faster increase in rpm vs slower also increase heat?

Sorry but I'm not believing that

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[dannyg]

timing chain duh

[HawaiianE30]

I know... I'll just swap out the m20 for the AMC I4.0L in my Cherokee... T-Chain ftw!