First off, this is here so it gets a lot of views, probably be moved shortly after.
Here is my aol convo with mike: RevvinRx7: can't remember the thread but some guy at the club was making like BIG HP numers RevvinRx7: numbers and he had 205s on his car??? RevvinRx7: and he was getting traction control RevvinRx7: wtF? RevvinRx7: why wouldn't he get bigger tires??? j9fd3s: haha RevvinRx7: http://www.rx7club.com/forum/showthread.ph...25&pagenumber=3 RevvinRx7: RICE RACING j9fd3s: bigger tires dont equal traction RevvinRx7: what? RevvinRx7: how so? RevvinRx7: im a little lost mike j9fd3s: think of it like a knife RevvinRx7: ok j9fd3s: big tires = dull knife j9fd3s: sorta RevvinRx7: thats what my dad said too RevvinRx7: i was like wtf dad? j9fd3s: haha RevvinRx7: so why do people put bigg ass tires on their cars then????? j9fd3s: to a point bigger is better j9fd3s: cause they dont know RevvinRx7: huh RevvinRx7: damn I really am just starting to learn. RevvinRx7: so whats the limit of how big a tire can be before it won't provide better traction? j9fd3s: it depends on the car j9fd3s: like the spring, how much it wieghs RevvinRx7: is this only true on street tires? RevvinRx7: or all tires... j9fd3s: it works for all tires RevvinRx7: so why do funny cars/drag cars have HUGE tires RevvinRx7: like 345-400 j9fd3s: cause they can make it put more rubber down RevvinRx7: cuz they have a lot of power? RevvinRx7: i don't realy know what you mean by that j9fd3s: cause they get the tire to deform RevvinRx7: ah yea, but i thought the deforming part was to get even more contact patch j9fd3s: yah RevvinRx7: more contact patch = more traction, wider tires = more contact patch???? RevvinRx7: thats how i always thought j9fd3s: kinda RevvinRx7: I just don't understand RevvinRx7: i see how my car burned rubber like a mofo RevvinRx7: cuz it has 205s j9fd3s: yah its kinda of a grey area j9fd3s: yah RevvinRx7: so if i threw some 265s RevvinRx7: it would hookup right? j9fd3s: maybe RevvinRx7: damn im starting a thread about this I have always been under the impression that widder tires will always provide better traction, hence watching races/fast cars and they always have huge tires. Then I read what Rice Racing said and I was dumbfounded. So can anyone elaborate or help me explain why wider tires don't always provide better traction? I just don't want to get some wider tires and be wasting my money... |
damn that just confused me
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damn that just confused me |
Wider tires? Couldn't hurt. https://www.nopistons.com/forums/pub...#>/biggrin.png
A set of wide hard, cruddy tires won't hook up as well as narrower sticky tires that are made to hook up well in a straight line. But that's just a generalization. https://www.nopistons.com/forums/pub...IR#>/dunno.gif |
yeah thats what i thought too
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no no no the thread about the wider tires not equaling traction was started by marcus williams. it had a link to a page with a 68 mustang twin turbo small block that was running 205 tires. the mustang owner was an engineer for garret and he proved through mathmatical formulas that the small increase in traction you get from wider tires is negated by the increased rolling resistance.
he had done acceleration tests with an accelerometer and proved it i'm too lazy to search for it now, if nobody else posts it by tomorow, i'll find it and post here |
heres the thread, the link that he posted is down, but you can read the discussion in the thread
http://www.rx7club.com/forum/showthread.ph...threadid=123741 |
misleading thread..
wider tires does mean wider contact patch.. does it mean more power to the ground... yes.. great deal of factors involved to consider when discussing efficiency of the power transmitted.. coefficient of rolling friction on a tire...suspension geometry.. psi...tire compound..sidewall rigidity..application... to basically make a statement that bigger tires dont equal traction and that it works for all tires is vague..and misleading.... in a sense there is some truth in the reference above of wider tires equals dull knife... which is applied to mud and snow traction.... |
Originally Posted by SPEED_NYC' date='Feb 13 2003, 03:04 AM
....small increase in traction you get from wider tires is negated by the increased rolling resistance.....
although consider the conservative limitations for tire application ... versus the aggressive amount of power you can provide... its all relative... |
This is what happens when people try to apply something they heard in physics class to the real world. https://www.nopistons.com/forums/pub...DIR#>/wink.png
race tires: traction is very dependant on temperature. If the tire is too wide for a light weight car then the tire will never get up to temperature, and never produce it's maximum grip. For most production cars this is never a problem. 315's on a 1500 lb. 75hp civic might fall into this category... Why do you think drag racers do a burn out... to get the tire HOT! street tires: designed to work over a wide range of temperatures, so you don't have to get the tire hot for it to grip. There for weight is not a big factor... so just get the widest tire you can fit under your car and go have fun. https://www.nopistons.com/forums/pub...#>/biggrin.png |
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