Re: Bondo I need help with my Torque Shift
Hi O.P.,<br />The prop has no way of Knowing whether your motor is pushing 150hp, or 210hp.... It Really Shouldn't Matter.........<br />The Boat
Will see the difference.... I bet it Really Wakes Up, next year with the added HP of your winter project.........<br />
How can I tell when the prop shifts into the other extreme of it's range?
You may not Feel it.... But, you'll Know it....<br />With mine today(I went testing,+ fishing), I dropped the throttle,+ the motor Jumps to 4800rpms......<br />I was "On Plane" Instantly........ <br />In what seems to be Seconds, the mph came up to 44.5........<br />WOT is at 4950rpms.... I still need to back the screws out a little more.....<br />I want to see 4800rpms, WOT.......<br />
The prop shop said it was a 17-23 pitch prop but I don't see anything like that listed in land and sea's products.
Ayuh,<br />That's got me a little Confused Too.....<br />Maybe the Prop Shop was a little More Confused than I am...???<br />That Sounds more like the #s you'd get from a Mercruiser Shifting Prop.... They have a 6" spread in their shift....<br />
Is this maybe an older one that doesn't shift as extreme because when I manually shift it in my hand it looks like it's shifting a lot. I'm thinking maybe since my motor is weak that its staying in a strain or in a load and the prop isn't fully shifting.
See Above......<br />I'm Not buying this senario........ <br />
How do the different weight springs affect upshift? Would lighter springs allow it to upshift sooner but down shift later? I can see that a heavier spring will downshift sooner, but does it work the same for upshifts?
The Spring Weight More Directly affects the Up-shift points...... 15lb springs Up shift sooner... 45lb springs Up shift Later.....<br />Down shifting, you need to return to Near Idle......Or, Jab the throttle at slower speeds will Usually cause a Down shift....... <br /><br />The "Theory of Operation" is,<br />When the "Throttle is Dropped", the motor is allowed to Spin at it's Peak Torque/ Horsepower RPMs.......<br />As the boat catches up, the prop Shifts up.....<br />You can also Force an Upshift, by Over Trimming a little to catch some Air,+ it'll upshift....<br />Then trim back down for the proper running atitude....<br /><br /><br />I Hope that the prop you bought is for a Different In-law........<br />It Won't fit on the Volvo you mention.....