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« Last post by darreng on July 30, 2026, 08:28:10 PM »
I did end up playing with some more testing including swapping the loader for a stock rock grate again for a baseline and went straight snoot, droop, adjusted snoot wedging, moved the ride plate up and down, etc. Nothing seemed to really have any significant effect. I finally had a longer slip yolk driveline made using some of the parts from my current 1310 driveline that was an overall length of 8.25in, basically just replacing the factory H-joint with a 4in slip section that gives 2in of travel. The new one has ability to adjust from about 14-16in overall. This will allow for some weight balance testing by moving the motor forward to changing the center of gravity and compensate for the pump being set back then land it wherever it performs best. The porpoise seems to have been caused or at least worsened by setting the pump back which was moved just enough to get the inspection cap outside the transom (about 6in out from original position). I started by moving the motor forward 5.75in which is what this driveline would push it to at full collapse. It helped big time. Still feels like its on the verge of porpoising at certain points but it took a way better set and rode at speed much more like what I have been aiming for. High in the water and flatter without being bow high. Seemed to like the diverter in its most neutral position which with my setup is 1* up from keel, anything higher was seeming to create too much bow lift and provoke some porpoising again. Ride plate was set for that run at 3* up from keel. It also felt like it wanted to chine walk a little more than it did in the past but thats somewhat to be expected flying it lighter and actually getting it to hold position like that. Will need a bit more testing and didnt have an opportunity to get as many hits as I wouldve liked, too many people on the lake limited brief windows of decent water, but I will be moving the motor forward another 2in because like I said it still almost feels a little bouncy or on the verge of porpoising at a certain speed range and kind of drove through it but curious to see if a bit more movement does much. I think its very close to where it needs to be and could be about on the teeter totter point of ending up further forward than necessary but only more testing will decide that and where its happy spot is. Havent found much info on anyone discussing similar issues and even less that have actually documented consistent solutions other than putting cav plates or tabs on which seems to just be a bit of a bandaid and that wasnt something I was interested in doing if I didnt absolutely have to. I have made some temporary extended rails off the quarter stringers and cross braced the rails to the floor. They are pretty freakin solid for a temporary testing setup and working well so far but again temporary and will
Probably have a few sets of holes until the best location is decided. My plan is to go full stringer in the future, have a beefier solid 1350 driveline made that wont slip and build new permanent rails once we find the right spot to land her. A dolly trailer will also be in the works at some point! I added some pics of the driveline and location of the motor now as mounted for visual.