Genesis build

[TheShaddix]

Hi everyone,

just wanted to share my new build. This one will be a twin drive on 6s with 4074 2000kv motors and seaking 180a esc's. So far I reinforced the hatch with 12k carbon fiber and plan to do an inlay, 2 part foam, etc. Added a few custom stainless railings for easier hatch removal (just a bent/cut push rod).

[Mad Racer]

Looking good.

You don't see many Genesis twins.

Keep the pic's comimg

[SD Eracer]

That is a great job D, I've personally seen the quality of his carbon work on that hatch, it's on a whole new level.

When do you think you will have it running at the pond?

[TheShaddix]

Thanks! I still have a few things to do on this like an inlay, foam, etc. before i mount the hardware. I'll post some progress soon! Just gotta get through the holidays!

Here are some changes to the hatch

[SD Eracer]

Nice, so that front piece is to help secure the hatch to the hull. Were you also going to install hatch locks?

I'm going to run that motor I bought off of you this Friday or Saturday, really curious to see what my Genesis will do on the 2200kv on 4S.

Do you think my 180a SeaKing can handle that 2200kv on 6S? If not, I'll probably switch back to the 1600kv to run on 6S on Sunday.

[TheShaddix]

That front piece will slide into the boat and it'll have two bolts on the back of the hatch to secure it, this way there are less things to mess with. The seaking will handle that motor as long as you don't overprop. I'd do a few runs, bring it in and check the temps on esc, motor and battery. For now I'd just run it on 4s though as 6s is really pushing it with that kv unless you're doing quick saw runs. The way we run the boats it's not a good idea...

[olwarbirds]

The T-180 esc is very capable of handling a 2200kv motor on 6S. My Genesis had a Neu 1515 2200kv on 6S running a very modded 642 prop gps'd speed of 78mph. With a modded 645 prop I was into the 90's. Now this was a very modded hull inside and out and it was setup for "SAW". With a 640, 642 or 442 you can do a bit of sport type running, just be aware of runtime. This hull likes to run a bit more aired out than most cats so strut setting is critical. Even with a 40mm prop if your running the prop to deep you will experience torque roll issues. A strut adjustment as little as 2mm can make a big difference. The genesis hull is a very nice and fast hull, once you do the right upgrades. I sold my genesis and really miss it, I am now going to build a 8S powered Daytona to replace it.

Shaddix, thats some nice looking work your doing. Just a headsup, the transom is a big weak point on this hull. It will eventually stress crack apart if you dont do something to strengthen it. I flooded my transom and sponson tips with epoxy, then filled half the sponsons with 2 part expanding foam. Not only did it strengthen the hull and add floatation but it helped to keep the hull on the water more. I had less blowover issues after doing this to it. If you have any questions on setting up this hull please ask here or you can pm me. Have fun guys and Happy Holidays.... DJ

[SD Eracer]

...Just a headsup, the transom is a big weak point on this hull. It will eventually stress crack apart if you dont do something to strengthen it. I flooded my transom and sponson tips with epoxy, then filled half the sponsons with 2 part expanding foam. Not only did it strengthen the hull and add floatation but it helped to keep the hull on the water more. I had less blowover issues after doing this to it. If you have any questions on setting up this hull please ask here or you can pm me. Have fun guys and Happy Holidays.... DJ

Thanks for the tips Olwarbirds, I recently purchased my Genesis and have not reinforced anything, as I wanted to get it into the water as soon as possible, so the opposite of Shaddix who is doing a serious build.

I've only made about 8 SAW runs on 6S, and been impressed with just my basic build of 3/16th driveline, Leopard 4082 and SeaKing 180. That's about all I did, I know I'm pushing my luck on 6S with this boat the way it sits.

Can you expand on how you did your transom reinforcement? What kind of epoxy did you use, did you just tape up the original transom mount holes and then drill them out? Did you need larger bolts afterwards?

[olwarbirds]

Take all the hardware off transom. Make a template of the transom out of posterboard. Transfer onto a 1/8th piece of marine grade ply or a sheet of cf. Once I was sure it would fit I thoroughly coated the ply with thinned (use denatured alcohol) Z-poxy finishing resin. I then covered the transom doubler on side facing motor with cf cloth. Epoxied it in place.

[TheShaddix]

Any method will work for this, but why overkill something so simple? Just mix epoxy with some milled fiberglass powder (optional, kintec sells it...), pour it into the back with the boat standing upright and let cure for at least 48 hours (slow cure epoxy). To cover any holes (rudder linkage, etc) just use masking tape on the outside of the boat. I would not take any hardware off the boat either as the resin will just flow around the bolts and grip better overall. You can always unscrew them at any time later. I've done this a few times before and it's as solid as a brick. And I would only use slow curing epoxy resin for this type of reinforcement as it's stronger. I also mix in a drop of black dye to see what's being covered.

As far as 2 part foam, I use it all the time, and it's definitely the plan for the genesis. I also found that it tends to distort the hull as it gets hot while curing, so submerging the bow in cold water during expansion fixes the problem. I use the 4lbs density foam from US composites, it's semi-light, but does not have any give at all and has great flotation properties.

[olwarbirds]

Ok, you already know it all....but, this hulls transom is a major weak point. It will seperate from the main hull with a large series of stress cracks, even if you do what your saying...I had it happen and so did numerous others...

[TheShaddix]

I did not know that! Thanks for mentioning, I'll take extra measures to reinforce that area. I don't know it all, i just know what I did on previous builds and it worked. But this one apparently is a weaker hull than most.

[SD Eracer]

Take all the hardware off transom. Make a template of the transom out of posterboard. Transfer onto a 1/8th piece of marine grade ply or a sheet of cf. Once I was sure it would fit I thoroughly coated the ply with thinned (use denatured alcohol) Z-poxy finishing resin. I then covered the transom doubler on side facing motor with cf cloth. Epoxied it in place.

Thank you sir!

Yup, I will be reinforcing the transom. I remember when I told Wayne a couple of weeks ago I was going to get a Genesis, he said just make sure to reinforce the transom, because in the past he has seen a couple of Genesis with their transoms cracked or ripped off after just light hits on the rudder.

However, I'll do that next week after I run TheShaddix 2200kv motor today, hopefully I won't damage it until then :)

90mph on 2200 on 6S with a 45mm prop, wowsers Olwarbirds!!! I am tempted to try that out today, however my Genesis is currently a "paper kite" with no reinforcements, and I use cheap Turnigy $25 batteries. One mistake and my boat is in pieces and my batteries are puffed. My goal is to keep her at about 50mph or so until I get her reinforced.

[Fella1340]

I'm working on a twin genesis as well at the moment. Doing the transom properly will save you grief later on. I discovered that the transom on mine was almost entirely resin, no fiberglass at all at the hump for the strut and rudder mount. The boat would have failed very quickly without reinforcement. It also had the same issue at the sponson tips, no fiberglass. This hull may just be a bad one but it's not worth taking the chance. It's a fast hull but cheaply built and the fiberglass layup is questionable at best.

[tlandauer]

Agreed, transom doubler is the way to go, on my H&M Intruder S I made doublers out of FG G-10. DSCN7182.jpg