Kbb 34" mono build

[DK535]

lol I'm refreshing the post every two minutes waiting for the vid lol. Was just talking to keith about this same setup

[kfxguy]

Here a video

[kfxguy]

This boat is bad a$$. I love it! It turns very well for not having turn fins on it. I was extremely pleased on this first run. Now.....story time! Lol


First run was grossly disappointing. 41.1mph on 6s. M645 prop. Like luck point out, strut was too low. It still is really. I got it to 50ish after Mille passes and moving the strut and changing battery location. Ended up putting the batteries as far back as they would go. I still have not got it aired out. I ran a data log on it and it's pulling upwards of 260-270 amps at 77% throttle. 77% is max throttle according to the data log, I watched the video flraptor posted and I did not calibrate it correctly. So there's an issue in itself. I plan on tuning it a bit more next weekend. I think I can get 60 out of it on 6s and 70 on 7s. I was going to run it on 8s but I'm not till I get it where it's not pulling so many amps. I'm extremely happy with this hull! On a side note, after running the mono a few times and draing the batts to 3.98v per cell, I threw the batts in the Daytona and clicked off a 79.2mph pass! I bet it would have gone 82ish on fresh batts. Good stuff!

[complacent_one]

That is a good looking boat. Looks like it was riding nicely!! I am hoping to have my KBB34 wrapped up by next weekend.

[kfxguy]

lol I'm refreshing the post every two minutes waiting for the vid lol. Was just talking to keith about this same setup

Keith has been very helpful with this build. When I told him I was on the way to the lake to run it he got excited. This is my first mono I've built and I feel like it's a huge success so far. The water wasn't glass smooth but she handled it like it was glass smooth.

[Luck as a Constant]

That thing looks like it's running excellent!
Nice work bro




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[Luck as a Constant]

Kbb 34" mono build

I didn't see the hatch bolts done in here. Balls....
I remember asking you and you sent me a link to another thread, but I couldn't find it.
I was hoping you would show that in here lol



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[kfxguy]

Here's some more pics

[DK535]

Nice run!!!! Looks very stable. Wondering how it would be in chop and oval racing..... Hmmmm

[Luck as a Constant]

Kbb 34" mono build

That thing is clean man. Looks so nice....
Now show me the hatch bolts haha


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[DK535]

You make the vinyl windshield?

[kfxguy]

I didn't see the hatch bolts done in here. Balls....
I remember asking you and you sent me a link to another thread, but I couldn't find it.
I was hoping you would show that in here lol



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Sorry man. I probably skipped a lot. This was a lot of work building this boat. My wife stayed mad at me. I was hauling butt to be the first one to get one on the water. Here's some pics of it I took tho. I used aluminum rivet nuts that rivet in place like a pop river. The front one had to be turned down smaller at the flange because the lip it was going in is too small. I chucked it in my drill (lightly! You'll bend it) and turned it down with my belt sander and then put a flat on the side that the hatch seal goes. (Like my tape comment in the video? Hahaha in your face tape users! Lol). I epoxied a carbon strip on the bottom side of the front one before squeezing the rivet. I also use a small amount of jb quick to help lock it in place. On the rear ones I use some square aluminum sheet metal as "washers" to reinforce it. They are epoxied in place and so are the rivet nuts along with being squeezed in place. I got the rivnut kit at harbor freight, 16 bucks. Buy replacement rivnuts on eBay for cheap. I use 8-32 stainless thumbs screws. 3/4" long. eBay. They are about 2 bucks each. I get the rubber washers from lowes. Smallest ones they carry. There is a 1/8" Id oring on the bottom side to keep from losing the thumb screws.

[flraptor07]

Looks awsome Travis, What prop did you end up with? You should be able to get up around 50-52mm 1.6 pitch look at some ABC props, I've been using some lately and I really like them try a 2016-10-50 Clever it's 50.8mm 1.6 pitch or a 1916-10-50 it's 48.26mm 1.6 pitch.

[Luck as a Constant]

Sorry man. I probably skipped a lot. This was a lot of work building this boat. My wife stayed mad at me. I was hauling butt to be the first one to get one on the water. Here's some pics of it I took tho. I used aluminum rivet nuts that rivet in place like a pop river. The front one had to be turned down smaller at the flange because the lip it was going in is too small. I chucked it in my drill (lightly! You'll bend it) and turned it down with my belt sander and then put a flat on the side that the hatch seal goes. (Like my tape comment in the video? Hahaha in your face tape users! Lol). I epoxied a carbon strip on the bottom side of the front one before squeezing the rivet. I also use a small amount of jb quick to help lock it in place. On the rear ones I use some square aluminum sheet metal as "washers" to reinforce it. They are epoxied in place and so are the rivet nuts along with being squeezed in place. I got the rivnut kit at harbor freight, 16 bucks. Buy replacement rivnuts on eBay for cheap. I use 8-32 stainless thumbs screws. 3/4" long. eBay. They are about 2 bucks each. I get the rubber washers from lowes. Smallest ones they carry. There is a 1/8" Id oring on the bottom side to keep from losing the thumb screws.

Thank you sir!


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[kfxguy]

I'm using an x648 on it right now. No prop walk and drives perfect. I may try some different props but I think I can get the speed I'm looking for with this one. The motor literally laughed at the load I put it through. It never got warm. I do have very good water flow also. Esc temp stayed at 104f or less.