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-   -   Imco question on planing (https://www.offshoreonly.com/forums/drives-lower-units/371705-imco-question-planing.html)

Pulse74 05-23-2021 03:34 PM

Imco question on planing
 
I just swapped a bravo xr lower to a imco sc lower. Already had a scx upper. Only issue I’m having is getting up on plane. The xr lower jumped on plane no issues. The imco rolls up to 3k no issue then feels like the prop slips and have a heck of a time getting to roll over. Even with dropping tabs. Anyone else experience this?

F-2 Speedy 05-23-2021 03:54 PM

are the lowers the same length ? drive shower ?

Pulse74 05-23-2021 03:56 PM


Originally Posted by F-2 Speedy (Post 4790780)
are the lowers the same length ? drive shower ?


everything the same. Standard length on both. I assume standard is the same length. Prop depth is the same at 4.5 at neutral

F-2 Speedy 05-23-2021 03:59 PM

did you install a drive shower ?

Pulse74 05-23-2021 04:00 PM


Originally Posted by F-2 Speedy (Post 4790782)
did you install a drive shower ?

no, just the built in shower on the scx

F-2 Speedy 05-23-2021 04:18 PM


Originally Posted by Pulse74 (Post 4790783)
no, just the built in shower on the scx

seems odd, same prop and shaft depth and blows out, Im going from xr's to -1 imco lowers haven't ran the boat yet hope I dont have issues

Pulse74 05-23-2021 04:25 PM


Originally Posted by F-2 Speedy (Post 4790785)
seems odd, same prop and shaft depth and blows out, Im going from xr's to -1 imco lowers haven't ran the boat yet hope I dont have issues


yeah so far I’m not sure about the swap. Boat also now leans to starboard on cruising. Tab doesn’t do much for correcting.

SB 05-23-2021 04:28 PM

Cavitation plate same size ?

Pulse74 05-23-2021 04:36 PM


Originally Posted by SB (Post 4790787)
Cavitation plate same size ?

yep didn’t do anything to the upper

F-2 Speedy 05-23-2021 04:51 PM


Originally Posted by Pulse74 (Post 4790788)
yep didn’t do anything to the upper

can you post a pic of the drive


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