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I am planning to remove the teflon liner in my Sport 21 Whiplash this week. This is the only hull I still run the liner in still and I would rather go all brass like my other hulls.
I have two choises on how I am going to remove the liner and still keep the stuffing tube setup the same. I am running a 1515 1Y with a .150 cable that has never had a problem. I have a short piece of 9/32" tubing permanetely glassed into the hull and a length of 1/4" stuffing tube runs back and into the Speedmaster strut. If I remove the liner alone I think there is going to be to much slop between the cable and the brass tubing so that leaves me with two options.
1) Remove the liner and add 7/32" tubing inside the 1/4" tubing to reduce the diameter. If I did this I would have to solder or loctite a 4" or so piece of 1/4" tubing into the strut end and the motor end of the 9/32" tubing and then run a full lenght of 7/32" tubing to the strut. My main concern is that the 7/32" tubing is pretty small and it is possible that it will bend pretty easy in a crash.
2) The other option is just to remove the liner and just use a .187 cable and collet. I have both readily available so its not a big change. The question is will the .187 cable be overkill in a 30" hydro with a 1515 1Y motor? I personally think a .187 coupler and cable is a lot more mass that needs to turn compared to a .150 coupler and a .150 cable but the added strength of the cable might be a plus. What do you guys think?
I have two choises on how I am going to remove the liner and still keep the stuffing tube setup the same. I am running a 1515 1Y with a .150 cable that has never had a problem. I have a short piece of 9/32" tubing permanetely glassed into the hull and a length of 1/4" stuffing tube runs back and into the Speedmaster strut. If I remove the liner alone I think there is going to be to much slop between the cable and the brass tubing so that leaves me with two options.
1) Remove the liner and add 7/32" tubing inside the 1/4" tubing to reduce the diameter. If I did this I would have to solder or loctite a 4" or so piece of 1/4" tubing into the strut end and the motor end of the 9/32" tubing and then run a full lenght of 7/32" tubing to the strut. My main concern is that the 7/32" tubing is pretty small and it is possible that it will bend pretty easy in a crash.
2) The other option is just to remove the liner and just use a .187 cable and collet. I have both readily available so its not a big change. The question is will the .187 cable be overkill in a 30" hydro with a 1515 1Y motor? I personally think a .187 coupler and cable is a lot more mass that needs to turn compared to a .150 coupler and a .150 cable but the added strength of the cable might be a plus. What do you guys think?
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