EvilC Posted September 27, 2005 Share Posted September 27, 2005 I was also wondering if there is a site that you can plug in different variables to predict stopping distances at various speeds.....or anyone know how to do this....Thanks again. Quote Link to comment Share on other sites More sharing options...
EvilC Posted October 1, 2005 Author Share Posted October 1, 2005 I know it sounds really silly....because I will be doing the big brake upgrade but I have to prove it through equations that the car will stop in a shorter distance than if I had the stock brakes system on. Pushing the car down the hill would be a great idea right? Quote Link to comment Share on other sites More sharing options...
Hugh Posted October 1, 2005 Share Posted October 1, 2005 braking, not breaking I've never used a braking calculator online, or anywhere else.. sorry. But I googled "braking calculator" and found some really complicated formulas. Here's one: http://www.csgnetwork.com/stopdistcalc.html Quote Link to comment Share on other sites More sharing options...
zguitar71 Posted October 1, 2005 Share Posted October 1, 2005 Put on stickier tires and you will stop shorter then just changing to bigger brakes. The tire compound does more for stopping distances than the size of the brakes, unless your car is an all out road racer and you are looking into the brakes for racing reasons. The added weight of the larger brakes and wheels that are need to clear them could make the distances longer when comparing to the stock brakes and using identicle compound tires. Rotating weight plays a major roll in the ability to stop a car. Read this: http://forums.hybridz.org/showthread.php?t=103767 Quote Link to comment Share on other sites More sharing options...
EvilC Posted October 1, 2005 Author Share Posted October 1, 2005 LoL I should stop waiting until 3am to post stuff. Spelling becomes hard. Quote Link to comment Share on other sites More sharing options...
Clifton Posted October 1, 2005 Share Posted October 1, 2005 I agree with the softer tires. You will reduce 60-0 stopping distances more from that. Big brakes won't be a benifit on the street stopping at 50-60 mph for a red light. A few hard stops from 120 - 40 mph is different. Quote Link to comment Share on other sites More sharing options...
EvilC Posted October 2, 2005 Author Share Posted October 2, 2005 Yeah you guys are right. My problem is that the car is not running so I can no even do any test stopping from 100 - 0. So I guess I will have to figure something out. Quote Link to comment Share on other sites More sharing options...
dr_hunt Posted October 2, 2005 Share Posted October 2, 2005 Evil C, at least you didn't search using "breaking" as your key word. I tried using fule, trubo and other words spelled incorrectly and got no results go figure. The key to stopping is; 1. whether you the tire is still rolling or not. and 2. Whether or not the tire is at the point of incipient slip, which goes to rubber compound and the coefficients of static friction and dynamic friction. Then of course you have to factor in what happens if one of your tires locks and the rest do not, ie. whether the car is moving in a straight line or not, uphill, downhill, level or whatnot. I think it's too many variables to calculate, but bigger brakes can't be a drawback. Quote Link to comment Share on other sites More sharing options...
EvilC Posted October 2, 2005 Author Share Posted October 2, 2005 Very true. I am trying to explain this to a bunch of Prof w/Phd's with no clue about cars. They told me it must be worked out on paper to convince them. So as we type I am thinking of what to do. Quote Link to comment Share on other sites More sharing options...
dr_hunt Posted October 2, 2005 Share Posted October 2, 2005 My thought is that you won't have brake fade as rapidly with bigger brakes. That assumes that the stock brakes are not oversized for the vehicle weight and won't lock the tires up at any speed. Then you'll have a chance at proving that, otherwise, your up the creek without a paddle. Quote Link to comment Share on other sites More sharing options...
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