what pulleys are needed when reving their RB too 9.5-10k?

[GD51LA]

wondering what’s needed too slow down the belt drives when reving way past the factory limit

 

larger pulley on the alternator power steering is easy but what about the water pump when combined with the ATI balance as it requires a smaller water pump pulley too fit

(obviously your spinning the hell out of the water pump with a smalller pulley)

 

using an N1 6 blade pump may help, is. that enough?

[Scott Black]

Could always try electric water pump