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The mkiv Supra Owners Club

Possibly bought the cheapest MKIV Supra TT AT in the world. What's wrong with it?


SupraGTO
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  • 2 weeks later...
I've been reading the forums, and it seems to be a cross of opinions regarding having an after market crank pulley or having a stock one. I understand the benefits of going stock, but what are the cons of having an aftermarket one?

 

It’s not really the issue of after market or stock but more the type of pulley you run and what RPM you intend to run the engine at. You should run a Dampened pulley as Mikeekim89 said this is to reduce vibrations travelling through the crank and causing damage to the engine...crank, bearings, seals etc..

 

The stock Pulley is a Dampened Pulley and you can get after market pulleys that are also Dampened such as ATI/Titan which dampen using rubber like bushes and can be serviced however the V1 needs a larger belt and machining to fit your crank. Or the Fluidampr one which doesn’t use rubber bushes but is a one piece dampener.

 

The difference over stock is that people running big horse power at higher than stock RPM have reported that the stock pulley can separate, so rather than leave the question they fit an aftermarket pulley as mentioned above.

 

Now you do have a aftermarket pulley but being solid metal this will not dampen so put a Dampened pulley stock/aftermarket on your wish list.

 

Hope that helps and welcome to Supra ownership :thumbs:

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