3car
Petty Officer 2nd Class
- Joined
- Apr 2, 2006
- Messages
- 132
long story short, I bought a 2000 17' javelin venom with no motor, and I bought an 86' evinrude 140 looper that had been assembled from a few different motors. it has a v6 gearcase. the boat is slightly overpowered, and has a 22p raker prop. the problem is, the boat wont get on plane, just digs. once it finally planes out, it only reaches about 51mph by GPS. tach is not working, so I don't know rpms.
I read somewhere that the looper v4 engines that got the v6 gearcase actually had lower gearsets in them. is this true? if so, I may be over propped. from my research, this model boat with 115's typically run a 22p prop to the high 50's, but that is with the smaller lower unit and prop.
I was thinking something was wrong with the motor, but now I'm not sure.
I read somewhere that the looper v4 engines that got the v6 gearcase actually had lower gearsets in them. is this true? if so, I may be over propped. from my research, this model boat with 115's typically run a 22p prop to the high 50's, but that is with the smaller lower unit and prop.
I was thinking something was wrong with the motor, but now I'm not sure.