Thread: port and polish on the gpr1200
06-17-2011, 07:10 PM #1
port and polish on the gpr1200
hi, port and polish my gpr engine... anybody did the same with there gpr? did it make a big difference in power??
06-17-2011, 07:18 PM #2
- Join Date
- Oct 2006
yes, it does make a difference but its the sort of thing you do last after the hull, pump and everything else in the motor is already done.
once all other mods are done , typically you will gain 4mph + way better acceleration.
down side is it will chew more fuel.
06-17-2011, 08:11 PM #3
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