Sam Nichols Posted April 9, 2007 Report Share Posted April 9, 2007 There's a big extreme sports event being organised in guernsey for may and the local riders are organising a trials demo..The sites for the event is here if anyone is interested.Anyway, we're gonna use a car as one of the obstacles and aren't really sure where to start. We'll be taking the wheels off and dropping it on the deck to make it more stable. But it's the windscreen that i was concerned about,, There will be a couple motorbikes using it too so i'm not sure if the windscreen will be strong enough?We were considering removing the windscreen and fitting ply.Really just if any of you guys have done a demo using a car before.. can you post what you did?Cheers guys. Quote Link to comment Share on other sites More sharing options...
Simpson Posted April 9, 2007 Report Share Posted April 9, 2007 Id just leave the glass window in.. although it wouldnt be unlikley that the window will get snapped / cracked it wont kinda pop all the way though youll have to batter it alot before it actually goes fully through. Like you have to hit a windscreen a few times with a sledge hammer to actually put the whole thing through. and the PLY one you put in will not be the right fit, it will flex loads and just pop out of place if you hit it if its not in the seals right and stuff and it will be next to impossible to get it to fit the right size?either leave the glass 1 in and if you put it through just ride without... or start off without a windscreen? Quote Link to comment Share on other sites More sharing options...
Tomm Posted April 9, 2007 Report Share Posted April 9, 2007 What about duct tape all over the widescreen? It's bound to crack a bit, but it won't shatter. Quote Link to comment Share on other sites More sharing options...
that NBR dude Posted April 9, 2007 Report Share Posted April 9, 2007 (edited) drill 2 holes in the roof, and 2 in the bonnet. Get a sheet of ply wood (reasonable thickness) thats just bigger than the windscreen. Fasten the plywood in place using bolts, through the holes you have drilled. A Bit of Ducktape wouldnt go amiss along the sides of the wood, to make sure you dont scrape your leg down it if something goes wrong.Edit - forgot to say, leave the screen in place as it will provide extra support for the wood, and the wood will distribute the forces more evenly across the glass, reducing the risk of it shattering Edited April 9, 2007 by Andy@NBR Quote Link to comment Share on other sites More sharing options...
Tomm Posted April 9, 2007 Report Share Posted April 9, 2007 But the widescreen will be curved, you can't just slap a flat bit of wood on there - it'll make the windscreen much MORE likely to smash.If you're worried about it, you could just take the glass out, it wouldn't make much difference to you riding on it... Might affect the motorbikes though? Quote Link to comment Share on other sites More sharing options...
Fishy Posted April 9, 2007 Report Share Posted April 9, 2007 At 'The Hard One' or something, they had cars that enduro bikes were flying on, and the had put a crate inside, ontop of the seats. by the end of the enduro, they glass had cracked, but not gone right through. Quote Link to comment Share on other sites More sharing options...
Fish-Finger-er Posted April 9, 2007 Report Share Posted April 9, 2007 ie rode the scrap car at my house about a hundred times, and im a big hefty bloke, who aint smooth, but never once have i cracked the screen on it. only advice i would give is to get some griptape/ 3m safety walk, and put it on any of the curved edges ur likely to be using to backwheel/gap to. as its a hell of a different feeling to concrete and way slippier.rip the wingmirrors off, there really of no use, and are rather dangerous if you go to bail and one of ur legs gets caught on em, plus theyve got one of the only glass bits on the car, that may shatter easily, and wouldnt be pleasant to stick through you. windscreen wiper arms, take em off, again there of no use, and just makes everything more awkward and or dangerous can even break off/grind off the stubs if you feel the need.aerials etc should also come off, as they generally get in the way, and although they may not fall of, you dont want to have to clear up bits of the car after every line. maybe spray paint the bonnet in primer or summit, and then stick a company sticker on it, not just for advertising, but because a matte surface will be way way grippier than the glossy laquered service of the car Quote Link to comment Share on other sites More sharing options...
matt rushton Posted April 9, 2007 Report Share Posted April 9, 2007 Leave all the windows in. They will be ok. Make a little kicker that goes up the side of the car (The doors).Yesturday we make a kicker up a fiesta. And we were going fast and slaming back wheel into side windows and they didn't crack. Then my brother did it on his motorbike and they stayed intact.Matt Rushton Quote Link to comment Share on other sites More sharing options...
Broomer Posted April 9, 2007 Report Share Posted April 9, 2007 (edited) could always bolt a grill over the windscreen, stops people falling through the window if they fell off etc Edited April 9, 2007 by Broomer Quote Link to comment Share on other sites More sharing options...
RobinJI Posted April 9, 2007 Report Share Posted April 9, 2007 Lots and lots of duck tape. Windscreens are pretty solid, but it wouldn't hurt to support it more with some duck tape. Like a criss cross pattern of it all over any glass to hold it together if the laminating layer starts to split, and to stop the side windows shattering as there normally that safety glass stuff that smashes into loads of little bits. And completely cover the headlamps. As like said above them and the wing mirrors are about the only glass that will shatter dangerously if broken.Supporting the windscreen on the inside is also a good idea if motorbikes are using it. Like said above, wedge a pallet in there or something.Its hard to go through windscreens. But I know Ben Moore has fallen elbow first through one at a comp. And I'm sure other people have done similar things too. Quote Link to comment Share on other sites More sharing options...
trials_pimp Posted April 9, 2007 Report Share Posted April 9, 2007 Right:The windscreen will NOT shatter or smash. It is laminated glass, so it will crack lots, but ti will all stay in place, unless you hit you fold the glass in and the whole lot will fall through.Every otehr glass pannel on the car WILL shatter, and easily.Remove them, otherwise youll have a lot of glass to clean up, and the possibility of serrious injury.The main point of the car you will be riding, the roof, will need some sort of suport. Either an Acro, or some wood suports inside th car will help alot. Could even remove the seats and pile crates in. Otherwise you will find 1/2 way through your demo the roof will sink, alot.Make sure all the fuel is drained out of the car, and if need be, remove the fuel tank. You will get alot of hastle from H&S if you dont. Also its the smart option.if you have the time/resources it might be worth covering all the empty window apatures with sheet metal, just crudly rivited on will be fine. Or at least some wood.Failing that, make sure there is something inside the car to fall on, you dont want someone stacking and falling into an empty car, thats bad Quote Link to comment Share on other sites More sharing options...
N.Wood Posted April 9, 2007 Report Share Posted April 9, 2007 Engage the handbrake.Engage the handbrake. Quote Link to comment Share on other sites More sharing options...
oakley Posted April 9, 2007 Report Share Posted April 9, 2007 just leave them in, seriously, they will be fine. but one piece of advice = grip tape. full on cover the car in it, specially if its outdoors! Quote Link to comment Share on other sites More sharing options...
NileBrown™ Posted April 9, 2007 Report Share Posted April 9, 2007 Engage the handbrake.Engage the handbrake.Sorry mate , he's going to take all the wheels off so it doesn't move about so much , engaging the handbrake will do nothing! just thought i'd let you know...Nile Quote Link to comment Share on other sites More sharing options...
Joey B Posted April 9, 2007 Report Share Posted April 9, 2007 All the cars I've prepped for motorbike trials demos has just been a case of removing windscreen wipers and the aerial then simple using f**k off great big nails and nailing plywood to the front and rear windows. Support inside the car is not needed, if it can take the forces of motorbikes jumping around on them the push-bikes will be fine. I would say duck tape the side windows up if you intend to get up the side, it will just keep the glass together if you were to break it. Only thing I've ever seen go wrong on a car that we've prepped like this is Alexz Wigg falling through the sunroof (we ran out of plywood) but it was a good laugh for the crowd so in the end it all went well anyway. Joey B Quote Link to comment Share on other sites More sharing options...
Ash-Kennard Posted April 9, 2007 Report Share Posted April 9, 2007 All the cars I've prepped for motorbike trials demos has just been a case of removing windscreen wipers and the aerial then simple using f**k off great big nails and nailing plywood to the front and rear windows. Support inside the car is not needed, if it can take the forces of motorbikes jumping around on them the push-bikes will be fine. I would say duck tape the side windows up if you intend to get up the side, it will just keep the glass together if you were to break it. Only thing I've ever seen go wrong on a car that we've prepped like this is Alexz Wigg falling through the sunroof (we ran out of plywood) but it was a good laugh for the crowd so in the end it all went well anyway. Joey Bhes got the right idea, if the roof is weak though, just add some support by wedging beams upright in there Quote Link to comment Share on other sites More sharing options...
Broomer Posted April 9, 2007 Report Share Posted April 9, 2007 hes got the right idea, if the roof is weak though, just add some support by wedging beams upright in thereDont think they are riding on convertibles. Quote Link to comment Share on other sites More sharing options...
Token Posted April 9, 2007 Report Share Posted April 9, 2007 hes got the right idea, if the roof is weak though, just add some support by wedging beams upright in thereYou can get these pipes, I've forgotten what they're called, we used them all the time when a new RSJ was being put into a building. But basically its two scaffold pipes with plates on each end, one inside the other and the inside pipe screws out making it longer or shorter. They are really strong as a few of them could hold the side of a house up, so one of them would be perfect for the roof of the car. Think they are called scaffolding screw jacks. Quote Link to comment Share on other sites More sharing options...
RobinJI Posted April 9, 2007 Report Share Posted April 9, 2007 an Acro... Quote Link to comment Share on other sites More sharing options...
RR_Trials Posted April 9, 2007 Report Share Posted April 9, 2007 I rode a demo with a car (southwest motor show) and the car didn't need much prep, all we did was get a lump of tar and score a criss cross pattern on the bonnet to make it easier to ride. The only problem was that Dan smacked into the front windscreen and smashed it but the film help it there, but we took it out anyway. Also we wedged crates under the car so it kept its hight but eliminated the bounciness of the suspension.Rorz! Quote Link to comment Share on other sites More sharing options...
basher Posted April 10, 2007 Report Share Posted April 10, 2007 If you could lock the suspension out that would be good as i find it horrible when hoping around on the top of the car. Quote Link to comment Share on other sites More sharing options...
Davetrials Posted April 10, 2007 Report Share Posted April 10, 2007 I rode a demo with a car (southwest motor show) and the car didn't need much prep, all we did was get a lump of tar and score a criss cross pattern on the bonnet to make it easier to ride. The only problem was that Dan smacked into the front windscreen and smashed it but the film help it there, but we took it out anyway. Also we wedged crates under the car so it kept its hight but eliminated the bounciness of the suspension.Rorz!titstupidest idea everno wait the stupidest idea ive ever seen was sum f**k tard at a ride putting tar on his pedals for extra grip Quote Link to comment Share on other sites More sharing options...
Broomer Posted April 10, 2007 Report Share Posted April 10, 2007 titstupidest idea everno wait the stupidest idea ive ever seen was sum f**k tard at a ride putting tar on his pedals for extra gripwell every village has to have their idiot. Quote Link to comment Share on other sites More sharing options...
Sam Nichols Posted April 10, 2007 Author Report Share Posted April 10, 2007 Cheers for all the advice guys! It's been a great help.The H&S is gonna be super strict so we have to be careful.. but the ideas you guys have given are really good. I've already had a go at jumping up and down on the roof and its soooo weak! So we'll be using an acro prop like scopse suggested. Decided to take all the windows out and fill them with ply/checker plate.Cheers guys. Quote Link to comment Share on other sites More sharing options...
Joe Sheehan! Posted April 10, 2007 Report Share Posted April 10, 2007 Good ideas here but seriously do not take out the windscreen its apparently 30% of the cars rigidity!Bad idea to take it out, i would just put something over it to make it a bit more protected.Cheers, Joe Quote Link to comment Share on other sites More sharing options...
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