Could you please tell me the realistic and honest power/performance increase I could expect with the 10 psi pulley, especially as the car is stock? If I do get a memcal installed should I keep the pulley at 10psi, or can it then go to a slightly smaller s
Posted by MACE Support on 30 April 2018 09:24 AM
The genuine power gains on a dead standard car in good working order is between 15-20rwkw, running a 10psi pulley on 98 octane fuel. Please refer to the graph below for more info pulley upgrade/

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