Tips for building derby cars?
457857
Most derby's require no glass (even in the dash), no flamible items like upholstry, a more secure fuel source than the original tank, a roll cage and a better seat belt.
861018
An easy solution would be to use Playdough! (or other claylike materials).  It's easy to form into various shapes and stick together into a model.  And it is colorful without needing any extra painting.  You can easily add labels on toothpicks or a color key to describe the different parts.
196920
Try a company called Racing Beat.
886022
I THINK THE MOST IMPORTANT THING ON THE CO2 DRAGSTER IS HAVING YOUR AXLE DRILLED STRAIGHT AND PARALLEL TO EACH OTHER. MAKE SURE YOU GREASE YOUR AXLE. 2ND. IS WEIGHT. REDUCE YOUR WEIGHT AS MUCH AS POSSIBLE. 3RD MAKE SURE YOUR CO2 CARTRIDGE IS PLACED IN CENTER OF YOUR DRAGSTER IN THE BACK. GOOD LUCK
484520
Build a ramp and go really, really fast.  Use Pedro's bike it has pegs!
130243
go to freeonlinegames.com they have a game where you could customize ur own car and make it high or low its in racing here it is:\n\nhttp://drag-racer-v3.freeonlinegames.com/
77052
Get a Mustang GT and a Paxton supercharger kit. You should be running 450-500 horsepower at the rear wheels with that setup.
223669
best site for help.\n\nhttp://www.scioly.org/obb/index.php\n\nLook for posts about the "scrambler car"\n\nThese will be advanced designs for competition, but you will get the general idea of how to build one.
96241
These are the best answer links I know.\nCheck them out and if you still need help feel free\nto Email me for help.\n\nhttp://www.info.com/\nhttp://www.autozone.com/\nhttp://autoparts.411web.com/\nhttp://www.crutchfieldadvisor.com/S-CHQL8v6H71J/\nhttp://www.wisegeek.com/\nhttp://www.howstuffworks.com/\nhttp://www.thefreedictionary.com/\nhttp://www.2carpros.com/index.htm\nhttp://www.streetracing.org/paris/dictionary/index.htm\nhttp://www.carcarecouncil.org/index.shtml
334803
http://www.derbypro.com/\n\ntry this one too : \n\nhttp://www.automobiledir.com/webs/type/351/index.html
31080
You have several options:\n\n1-Ask Ford (I mean, their alive relatives!)\n2-Have a try here: build your car online http://www2.saabusa.com/build/\nor here: http://www.kelvin.com/trla_byocars.html\n3-If you are serious about building a car at home, then check\nhttp://autorepair.about.com/cs/faqs/l/bl760e.htm\nand http://autorepair.about.com/gi/dynamic/offsite.htm?site=http://www.nhtsa.dot.gov/cars/rules/\n\nAnother useful link:\nhttp://www.daileyint.com/build/car.htm
58707
I would definitely recommend SCCA Racing.  The local chapters have vehicle classes which are appropriate for lower budgets, lower speeds, and more realistic race scenarious for younger drivers.  \n\nFor example my friends used to drive small hondas and nissans with 4 cylinder engines and carburetors which were very simple to maintain.  The biggest expense is putting a safety cage in the vehicle.  If you are handy with a tube bender and a MIG welder, you can do it yourself.  \n\nSCCA holds events locally in parking lots.  They set up cones and have judges.  HAVE FUN!!\n\nOOPS--you live in India--i am not sure SCCA is in inda.  SORRY!
241643
A very simple method would be to take a rubber band and anchor inside the body of the car on a hook and stretch it the length of the car and out the back (if you want toe propeller to push) or out the front (if you want the propeller to pull).  \n\nGet a propeller and attach some kind of hook to one side of it (a hook or loop, could even use flexible wire).  You'll need someway to keep the propeller from getting stuck, so you'll want to hold it away from the body using a bushing or other method).\n\nOnce you've connected the rubber band on both ends, just turn the propeller to twist the rubber band, and release to cause the propeller to turn.\n\nThis is simplistic, but gives you a general idea.  You'll of course have to have wheels, and a good method of reducing friction on the propeller and shaft.
403852
We used to build a Go-Kart frame similar to the store bought and make enough room for the Engine to mount behind the Seat. IF, it not have electric start take into consideration room to use the kick starter or mount a Rope Pull maybe using a compression release. Make a rod to run where you want the hand shift and use pedals for Clutch, Brake and Gas. Good Luck, it a fun project and you should be able to use a nice size tire, look for a cost effective Tire set up.
1172427
Hey if you really want to know go to: http://www.gemcar.com/  not only can you find your answer it will tell you how to build one......good luck
88330
You have to start with the Jolly Roger - scull and cross bones.  Sails could be screwers and light cardboard curved with centre holes top and bottom, nicely decorated, two triangular ones at the front.  The hull could be a Plastic coke bottle cut lengthways.  Glue something heavy to the bottom and then a layer of foam for the screwers to stick into.  Fashion  cardboard to fit as a deck, make holes for the screwers.  Find some netting (stocking material or the stuff they use in fruit punnets.  Brown wool for rigging and put it all together and then caste off me hearties.
212133
get pictures for reference (from the library or internet) then use modeling clay and wire (like metal coat hanger for support) build a skeleton from the wire (if it is a statue of a person or animal use the wire to make a "stick man" the form the clay around it and try to match the shape in the pictures you have