I wondered if its bolt on. What are the differences between the 90 and 115 powerheads? Carbs?
The boat needs more power.
2006-06-27 12:19:01 · 2 answers · asked by Billy Ray Sumbich 3 in Cars & Transportation ➔ Boats & Boating
It is the same engine with a different carb.
If the boat needs more power reduce the prop's pitch to where the engine will operate at the proper RPM at wide open throttle(WOT)
2006-06-27 14:47:14 · answer #1 · answered by Anonymous · 0⤊ 0⤋
pghmarty correct. You may be a lot better off just swapping Props. Look at the one you have now. It may be a 19 Pitch. Try a 17 Pitch. IF it a 17 try a 15. You lose some speed (not Always) for more power. The lower Pitch Number will increase Full Throttle RPM's also.
When you say 3 cly I think you mean the Carburetors. Both these Engines have 6 cylinders and 3 carburetors. One Carb for two cylinders.
IF, the props not help you may consider changing the Carbs from the 115 over to the 90. I would not swap the whole Powerhead unless I had too. But, I not sure, I guess the 115 Carbs may have larger Jets, but, may need to know if the Difference in these Engines is in the Carbs or Cylinder Bore/Stroke.
2006-06-28 09:39:35 · answer #2 · answered by Snaglefritz 7 · 0⤊ 0⤋