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Pulley -17%, +2%, +5%

646 Views 3 Replies 3 Participants Last post by  Nelson Costa
I am thinking of putting the pulley's -17%, +2% and +5%, the MINI Cooper S 170HP, will be reliably?





Thanks,

Nelson Costa
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Why fit all the other pulleys over the SC? Most have found no or little gain with the other pulleys and they don't meet the specs like no dampener. If I were you I would stick with the 17% only.
If you do go enlarged crank I would recommend the alternator pulley. Its amazing how much power the power steering and all the lights and ECUs use and how much torque it till take from the engine.
Why fit all the other pulleys over the SC? Most have found no or little gain with the other pulleys and they don't meet the specs like no dampener. If I were you I would stick with the 17% only.
The pulley +2%, will only remove the pulley effort -17%.

The pulley +5%, we have to put the best to load the alternator.

I think the total will be as it should be + / - 19%, because to put a +2% also get power to the engine.
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