chitwood46
Recruit
- Joined
- Sep 7, 2003
- Messages
- 5
I have a 1997 Mercury 200 EFI on a Ranger 488VS. I have a Trophy 25 pitch prop that has been race tuned. (Thinned, sharpened, cup changes for bow lift) The motor has Boyeson reeds installed and is on a Bob's Machine 6 inch hydraulic jackplate.<br />Motor SN is 0G451821<br />The motor will put the boat on plane in about 5 seconds. As the boat is almost up we get just a slight blowout of the prop but not bad. It will run up to 5800 RPM at wot. The 5800 rpms produces GPS 63.4 MPH with fuel and full gear loading.<br />It takes quite a long time to achieve WOT (5800).<br />The most obvious problem is that when I try to run the boat up on the trailer(which is 2/3 submerged), the motor will only achieve about 2000 rpm with the throttle wide open? The boat will not slide up; the last 4 to 6 inches. I would describe the feeling as "it feels like I am getting about 30 HP out of that 200HP."