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11.22.2006, 01:48 AM
Nice job. :)
I used an UE 6 spider diff in my 1/5, and it eats throught it about 8-10 hours of run time (rear diffs so far, twice).
I have FG catalogues and can get you wheel base measurements on FG buggies if you want to use their bodies.
If you decide to go the rally route, the bodies are either 510 or 535 MM wheel base (center of front to center of rear wheels). For rally cars there are many bodies to choose from, Ford Focus, Subaru WRC, Mitsubishi EVO, Renualt Manage, Citroen Xara, even a Dodge Ram truck (from MCD).
I ended up with two 7XL motors, each on 4S4P Lipos. She goes pretty good.
I use an e-maxx tranny that would go out a lot. I ended up doing a single speed G-maxx conversion with all metal gears inside (I forget who it was that made those a while back, but they are holding up), and modifying the top shaft gear's pin. I use and RC Alloy pin (from their drive shaft) to hold the top gear in place.
RC Alloys does not recommend using a shaft longer than 7 inches. I have snapped the heads of two of these shafts (rocks got caught in them, not from the torque of the motors). The new shaft I asked them to modify the design so it is a "straight" rod with pins at the end. I don't think they will snap any more.
Buy two roll cage kits on ebay for any FG on road car. You can get them for around $15 each. Then you can make your own custom roll cage. All you need it for is to support the body on heavy crashes. I have had the same body on mine since day one, it is a Peuget 405 sedan and it is surviving.
I also stripped a lot of plastic wheels. I went to alloys wheels and that cured the problem, but they were heavy. Then I went to Maximizer bead locks with alloy centers. Much lighter and they never stripped. Finally Dace put out their 23 mm hubs, in conjunction with Wabash wheels I now have a light and bullet proof solution for wheels. The forty series tires also put up with the added weight much better (less tire side wall flex for better handling). I did use 3M 3 inch strapping tape on the inside of the tires to act as a "belted tire". This way the tires don't ballon and scrub on the inside of the sedan body.
Keep up the good work. I will take a while to work out the buggs, but after wards this project will be very satisfying. My BL 1/5 rally is one of my favorite cars.
HOpe the tips help, and Good luck.
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