Miss Geico Race Prep

[tjdabomb]

great thread, very informative. except for the negative blip know as mannytx1, that is. Best thread on the MG I have read to date.

[Speedracer128]

Having the wiper in the front will break up and reduce the air going underneath the boat. It does reduce blowovers and a little speed IMO. Properchopper does put them on his boats and can explain what it does better than I can. I bought a MM he used to race with and it came with a piece of wiper blade

[BHChieftain]

Hi,
I use an airdam on my shovelnose hydro, but not on the Miss Geico. BTW it has no effect on bouncing (tried that before I blueprinted). Best setup I've found is strut up high (I run mine with propshaft about 1/8 inch above the bottom of the sponson-- just enough to see a gap if the boat is on a flat board), and blueprinted sponsons. Batteries pretty far back. My son races it in p-limited offshore and it will only blowover if there is a lot of headwind (he runs stock motor/esc 4S with x642 prop). With the blueprinted sponsons the bounce is gone.

There's another thread in the Miss Geico V2 section that I started that has a strut modification that allows for a tad of negative angle to be put in the strut which also really helps cut down on the bouncing if you don't want to blueprint. It involves filing the strut slot a little bit to allow for angle changes when the strut is in the high position (on stock, if you set the strut high it tends to add some positive angle which is what you don't want).

I love this boat!

Chief

[readyfireaim]

Just wanted to quickly thank everybody who contributed to this thread. I learned a ton.

The BJ29 is my first boat and I have a lot of tuning to do I see. 4s2p is where I'm starting with a x642 and the BHChieftain rudder/strut mod.

[Mitch S]

Hi !
Bringing this thread back to life...

I'm new here... Just picked up a new MG. Read the entire thread... Thanks!!

Bumped into this the other day.. I'll just post it for *!***!***!***!**s n giggles

[Doby]

That thing is huge!

[Mitch S]

Anyone with a Geico 3V, can you show me (with a pic) about where you are placing your batteries??
I'm putting my about 1 inch from the back of the battery tray. and the front close to top of the motor.

Anyone else??

[Tails Up]

I put mine (stock BJ29V3) all the way the back FWIW. For any newcomers like myself. Keep this forum going.

[Keagan-Z06]

I'll be in the mix of things here as soon as I get mine.

[Seanj]

Hey guys, I believe this is my first post.

I've had a version 2 (60 amp speed control) miss geico 29 for two summers now and love it, but have never been able to get the porpoising to stop.

I've blueprinted the hull (nice and flat sponsons, not as sharp as they could be on the edges but better than stock) raised the strut so the boat can sit on both sponsons on a level table, played with the strut angle (slight negative, slight positive, neutral), strut height (while typically keeping the strut high enough up so the sponsons sit flat), and battery placement. I've ran it with the batteries far enough back that the boat wants to flip going into the wind, and far enough forward that the boat runs rather wet, and seemingly everywhere in between. I was wondering what you guys have done to get the porpoising minimized?

The boat is all stock except for an OSE strut with the lead teflon bushings, and a sharpened and balanced prather s220. I run 2s 5000mah packs in series. I've noticed that the slightest bit of turn input stops the porpoising, but it comes back as soon as the steering is let off.

Does anyone have a link to somewhere that has a good guide for what various adjustments will do on catamarans?

[Keagan-Z06]

I have a v2 120 seaking ESC, Prather 220 prop and aquacraft motor (can't remember the specs) OSE V2 flex and Turnigy Graphene packs. Thing runs like nobody business but I wanna know why I have left and right movement with my prop shaft.

[Seanj]

As in play in the brass bushing? Probably a worn bushing from running out of balance propellers, or just from regular wear over time. I just replaced mine with the OSE strut with lead teflon bushings and the tolerance is much better than my old worn proboat bushing.

How are the graphene packs? What specific ones? I would like a set.

[Keagan-Z06]

I will try and get a video of it sometime over this weekend. But if u hold the prop, u can basically move it left to right with maybe a mm or 2 play. I have the Turnigy 2S 5000mah Graphenes. I noticed more take off response and a bit more punch. Only my second run with it but wanna sort of the geico first before really getting into it.

[Seanj]

Yeah that sounds to me like your bushing is just worn. The upgrade strut with the lead teflon bushings is only 15 dollars or so from OSE, I certainly have way less side to side play than I did before. I had enough play prior to the upgrade that I was having issues keeping water out of the hull for a 4 minute run. Since the replacement the flex still has loads of grease left on it after a 4 minute run whereas prior it would lose basically all the grease in the same time frame.

You could also possibly replace with lead teflon bushings yourself, but I wouldn't know where to start. I guess you would need to find the bushing with the proper specs, then use a dull drill bit to try and spin out the brass ones.