Carbon shocker build

[dmitry100]

kfxguy: Why not twins?

Btw, what is 2 stroke like power band?

Also, are you using bearings in your speedmaster struts, or just regular bushings? Trying to find myself a nice pair of MTC struts ... wonder if speedmaster ones are just as good

[kfxguy]

I just like singles. My preference. Twin is cool too but more money. More trouble to build. I'll be building a 32" twin here soon. Already have most everything for it. Escs came in the other day and the hull came in a couple weeks ago.

Two stroke powerband. You never rode a two stroke motor cycle? Down low there's not much power but when you get the rpms up it turns on. That's how I can relate how this thing was running. It seemed to just start turning on as I let off the trigger. It would have easily passed 100 had I been able to stay in it longer. It did not want to stay on the water past 90. Part of it was due to the motor just started to turn on and the rudder was way too short. The rudder plays more of a part of keeping the nose down than some people think about. When you get into running shorter and shorter rudders it plays a part in it. I chose the wrong rudder for this build because I was trying something different. Would this rudder work? Yea I could get it to work but I still want decent turning ability so it's got to go. It would spin around too easily and get upset too easily. I don't want just straight line, I want to be able to drive it some too. New rudder should be here today.

Mtc is some really nice stuff. They have more selection of your building a twin cat. Speedmaster not so much for twin cats. I guess you could make something work, but I don't see anything that id use on a twin cat. I will tell you that it is very Nicely made stuff tho. No slack and very smooth operating.

Yes I use bearings in pretty much all of my builds. I bore the strut and then cut a snap ring groove.

This particular strut is for a 1/4 flex so the hole in it was already the correct size for bearings. I just cut a snap ring groove and made a tapered nose cone for the stuffing tube to slide into

[Mxkid261]

This boat looks awesome lol. Whats the advantage of running the bearings in the strut? Do you drill it out with a drill press? Im starting to get a small bit of play in my flex in the strut and I think it could be causing a little vibration correct me if Im wrong

[dmitry100]

kfxguy: Any ideas where I can find measurement specs of their struts, etc? Their 1/4" Long Flat Bottom Stut, SPEEDMASTER 1/4" Long Extended Strut, SPDS-012-250F looks good but can't find anymore details about it...

[kfxguy]

kfxguy: Any ideas where I can find measurement specs of their struts, etc? Their 1/4" Long Flat Bottom Stut, SPEEDMASTER 1/4" Long Extended Strut, SPDS-012-250F looks good but can't find anymore details about it...

Your best best is to call and talk to Harry. Nice guy. He knows the measurements to everything off the top of his head.

[kfxguy]

This boat looks awesome lol. Whats the advantage of running the bearings in the strut? Do you drill it out with a drill press? Im starting to get a small bit of play in my flex in the strut and I think it could be causing a little vibration correct me if Im wrong

If your prop isn't balanced well that will cause it to wear quicker and cause a vibration. I feel the beatings last longer (when done correctly) and it's truer running, less friction and seals the shaft better from water getting in it.

[Mxkid261]

I bought it from funrcboats.com and had them balance and sharpen it maybe its time for me to learn how lol. What size bearings do you run in the strut if you dont mind me asking and how do you cut that snap ring groove? We are getting snow tonight into tomorrow morning but I want to try running the boat tomorrow afternoon LOL

[kfxguy]

Had a busy night last night. Got the new rudder in. Little more work than I thought to make it fit but no problem. Also got some work done on the cheetah and started rewiring an mgm 25035 into a cleaner setup. I'm going to post a massive build thread here shortly on several boats that I haven't mentioned and some other stuff. So check it out when you can. Here's the rudder I put. 1" longer and a tad thicker. Should do what I'm wanting. I cut 3/4" off it too. The thing was loooong. Lol

I made a 3mm carbon bracket to join the transom bracket and rudder together. Stiff but a little more flex than what I like so I ended up sandwiching two 3mm pieces together (not shown). Ill test strength tonight. Don't like it, I'll keep at it till I do.

[dmitry100]

kfxguy: What do you use to outline/imprint your parts (like rudder, strut mount, etc) onto the hull before drilling? I'm trying to find some sort of sticky thin foam to make an imprint of parts on hull before drilling but was wondering if you use anything different.

Dremel for large stuffing tube holes, or regular drill bits?

Have you ever considered using spring steel (2.5mm - 3mm) to use instead of flex cables? Thinking about using them for a cat... but I'm unable to find a good supplier of them, along with 3/16 stubs to use with them.

[Mxkid261]

Never mind Travis, I found the bearing size in your lehner rivercat thread! I will order some from boca or avid

[dmitry100]

mxkid261: Whats the bearing size?

[Mxkid261]

Looks like 5/16 O.D. - 3/16 I.D - 1/8 Thick or R156 number

[Mxkid261]

Im assuming Travis has a lathe and a tool to cut the groove in the strut for the snap ring

[dmitry100]

Just noticed this one: http://i218.photobucket.com/albums/c...CC1103B81F.jpg

Love the color combo... looks sick.

kfxguy: Btw, are these speedmaster struts? http://s339.photobucket.com/user/tof...pn5do.jpg.html

[srislash]

I see your trying a tapered rudder Travis. Just cause?