arogon1235 Posted September 24, 2014 Share Posted September 24, 2014 (edited) for about a year i have been wanting to build some sort of speed car/machine that is not related to rc, the ideas started to come together about what i would make the chassis out of what tires i would have to use and the most important thing what was it going to be powered by, this is when i started looking at what engine to use for my car. i was originally looking at 600cc motor bike engines but soon realized that it was going to take a lot of money, time and effort to make the engine fit and work properly and that is with out worrying about the tires exploding or the chassis not being able to take the power of the engine. this is where it starts to get interesting and starts to stray away from what most people would do. since i can remember i have always been a fan of riding push bikes either if it was a mountain bike or road bike i had always wanted to go fast on them (yes i learnt my lesson one day by hitting a pothole at 20mph that was not fun) until recently when i saw the episode of "speed with guy martin" when he was attempting to go over 100mph on a push bike, this got me thinking why not build a pedal powered streamliner like the ones you would usually see at Bonneville salt flats, this is when all the designs started coming out. this is where it starts to get interesting. my idea is to try and get to 100mph in a pedal powered streamliner with out using any sort of slip stream from any sort of vehicle. the plan is to build the chassis from aluminium and possibly some parts will be made from carbon fibre to save a bit more weight. for the drive line i will be using a series of sprockets and chains from a go kart which will let me run high gearing for longer runs to get the most out of the gearing and me as i know it isn't going to be easy to push this sort of high gearing, the other thing is the pedal assembly which i will be making my self as it is alot easier to make custom parts as it will fit my design as the car is basically designed around me so i can save as much weight as possible. The other ting is the axle setup and what tires and wheels i will be using, the only thing i have decided is what tires will be used which will be some sort of on road/ off road type of tires i am also currently experimenting with what type of axle and rims i will be using but i am pretty sure i have that covered. now this is the big thing that will be happening, in around 4-6 years time once the car is built i hope to take it to Bonneville salt flats to max it out as it will more likely take a good 3-5miles to get it up to speed as the gearing i will be using is very high and i mean very high lol. some people will probably say this wont happen like most of my rc projects and i can understand that and take no offence but i am almost certain this car will be built in and will be ran at Bonneville how ever long it take to do i will finish it. more up dates to come shortly like CAD designs and what parts will be used, i also do plan on doing this without no one else's help except from a cnc specialist and my dad who will help me with the chassis and body work as i know welding ally can be a right pita Anyway thanks for reading and i hope to have some updates very soon for you guys, thanks Edited September 26, 2014 by arogon1235 1 Quote Link to comment Share on other sites More sharing options...
Nick Posted September 25, 2014 Share Posted September 25, 2014 That was really hard to read (late night beer post? ) but it sounds interesting. Please use paragraphs in your next update. 3 Quote Link to comment Share on other sites More sharing options...
arogon1235 Posted September 25, 2014 Author Share Posted September 25, 2014 Yeah I was half asleep lol Quote Link to comment Share on other sites More sharing options...
mattr Posted September 25, 2014 Share Posted September 25, 2014 100mph? LMGTFY. http://www.whpva.org/hpv.html Sam Whittington holds the record, about 80mph. He was also a pretty handy elite road man. With a power output to match. And you'll need some proper speed record tyres, not "some sort of on road/ off road type of tires". I don't think you've thought this through *properly*. Quote Link to comment Share on other sites More sharing options...
oodboo Posted September 25, 2014 Share Posted September 25, 2014 Guy Martin isn't an elite road cyclist either but he put the training in for his attempt. 5-6 years is plenty time to train for it. If this is being designed from the ground up who's to say it won't work? I'm keen to see how this progresses. Quote Link to comment Share on other sites More sharing options...
mattr Posted September 25, 2014 Share Posted September 25, 2014 All the HPV record breaking vehicles are designed from the ground up. Guy Martins record is a completely different thing altogether. Quote Link to comment Share on other sites More sharing options...
oodboo Posted September 25, 2014 Share Posted September 25, 2014 Someone will beat 100mph in a hpv one day, why not this one? Give him a chance before craping all over the idea. 1 Quote Link to comment Share on other sites More sharing options...
Alex97 Posted September 25, 2014 Share Posted September 25, 2014 First thing good luck. This is more from a safety point of view but could you control a push bike at 100mph? Guy Martin is a professional and has been doing it for years so he has the control and balance needed. FYI look into jet engines as they are just more fun. Quote Link to comment Share on other sites More sharing options...
arogon1235 Posted September 26, 2014 Author Share Posted September 26, 2014 First thing good luck. This is more from a safety point of view but could you control a push bike at 100mph? Guy Martin is a professional and has been doing it for years so he has the control and balance needed. FYI look into jet engines as they are just more fun. i get what you mean, although it isn't going to have 2 wheels so it will be much more stable at higher speeds, also i would prefer to stick to something that wont cost a small fortune as i only have a small budget at this moment and i don't want to blow that budget on a jet engine but thanks for the idea anyway Quote Link to comment Share on other sites More sharing options...
arogon1235 Posted September 28, 2014 Author Share Posted September 28, 2014 1st set of sprockets have been ordered for the project now Quote Link to comment Share on other sites More sharing options...
arogon1235 Posted October 1, 2014 Author Share Posted October 1, 2014 1st set of sprockets have arrived, just making a mount for them now so they can fit on a 20mm steel axle Quote Link to comment Share on other sites More sharing options...
Juggernaut jims Posted October 1, 2014 Share Posted October 1, 2014 I would have gone with a thicker axle than just 2 cm yes it Is steel but adding say 200kg to it will affectively put more strain on the relative machine. Quote Link to comment Share on other sites More sharing options...
oodboo Posted October 1, 2014 Share Posted October 1, 2014 If using off the shelf bike parts a bigger axle might be difficult to come by. 20mm is a standard size for a front mtb axle (one of a few standards). Not sure how big a lefty hub is but I think they're thicker but then you'd only be able to attach it at one side. Quote Link to comment Share on other sites More sharing options...
arogon1235 Posted October 1, 2014 Author Share Posted October 1, 2014 i would have gone for a bigger axle but most of the stuff i will use has a 20mm bore, however to help the axle take the weight it will have 4 support bearings 2 on each side, one on the outside of the wheel and one on the inside of it Quote Link to comment Share on other sites More sharing options...
arogon1235 Posted October 1, 2014 Author Share Posted October 1, 2014 these are the sprockets i will be using, yes that is a 96t sprocket and a 12t sprocket Quote Link to comment Share on other sites More sharing options...
mayzie12 Posted October 1, 2014 Share Posted October 1, 2014 Thought about a hollow 50mm axle? Easily strong enough as they do 130mph on gearbox karts and waaaaay lighter than old solid axles. If you're thinking of using karting bits lemme know, i have tonnes of spares lying about i could get rid off Quote Link to comment Share on other sites More sharing options...
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