littlebrownbike Posted January 7, 2010 Report Share Posted January 7, 2010 I apologise if the following is obvious to anyone, but I had to use brute force to get my car out of the street this morning, which meant a lot of wheel spinning. Only later when I checked my tyres I could see they were badly damaged, it looks like someone has taken a sanding machine to the tread. I didn't expect them to escape unscathed, but I didnt expect them to look like I've just spent the day at silverstone I'll check the depth tomorrow and see if they have worn. The smoke and smell of burning rubber was a give away though Quote Link to comment Share on other sites More sharing options...
Tony Posted January 7, 2010 Report Share Posted January 7, 2010 Spin= no traction, lower the pressure to increase the contact patch, it may help. Quote Link to comment Share on other sites More sharing options...
Rich Posted January 7, 2010 Report Share Posted January 7, 2010 Shouldn't you keep the revs low if you're stuck? Quote Link to comment Share on other sites More sharing options...
CIH Posted January 7, 2010 Report Share Posted January 7, 2010 yeah you want a higher gear and use engine torque Quote Link to comment Share on other sites More sharing options...
jammy Posted January 8, 2010 Report Share Posted January 8, 2010 littlebrownbike....sounds like you should stay off the road when weather is like this??????? Quote Link to comment Share on other sites More sharing options...
littlebrownbike Posted January 8, 2010 Author Report Share Posted January 8, 2010 Shouldn't you keep the revs low if you're stuck? If you're stuck, then no, the car will still spin both wheels at idle in 4th gear, the only way out is to rock the car then take a run up using maximum engine speed to burn away the snow and keep momentum. If however you are not stuck but on a loose surface, then low revs and a high gear can help. Quote Link to comment Share on other sites More sharing options...
Rich Posted January 8, 2010 Report Share Posted January 8, 2010 After this morning I think the best thing to do is carry a shovel and dig some tracks. First me rear brakes had frozen and then the car was just wheel spinning on the ice behind it. Broke it up and gently rolled the car out, saves on the tyre wear! Quote Link to comment Share on other sites More sharing options...
jammy Posted January 8, 2010 Report Share Posted January 8, 2010 this is where i was ment to post my astra has got some right cheap tat tyres on it and we have major black ice on all of thanet and i aint slid bumped spun anywhere unless ive made it do it lol....... Quote Link to comment Share on other sites More sharing options...
hms Posted January 8, 2010 Report Share Posted January 8, 2010 Shouldn't you keep the revs low if you're stuck? If you're stuck, then no, the car will still spin both wheels at idle in 4th gear, the only way out is to rock the car then take a run up using maximum engine speed to burn away the snow and keep momentum. You sure? I'd have thought that all the wheelspins would be doing is possibly applying a little heat to the ice to give you a layer of water to lubricate the wheel/ice interface! Yes rock the car backwards and forwards, but use minimum revs and highest gear possible for torque. h Quote Link to comment Share on other sites More sharing options...
littlebrownbike Posted January 8, 2010 Author Report Share Posted January 8, 2010 this is where i was ment to post my astra has got some right cheap tat tyres on it and we have major black ice on all of thanet and i aint slid bumped spun anywhere unless ive made it do it lol....... I'm guessing your astra doesnt; Have summer only tyres on it Have wide low profile tyres on it Has 220bhp is parked at the bottom of a steep hill. Quote Link to comment Share on other sites More sharing options...
Rich Posted January 8, 2010 Report Share Posted January 8, 2010 this is where i was ment to post my astra has got some right cheap tat tyres on it and we have major black ice on all of thanet and i aint slid bumped spun anywhere unless ive made it do it lol....... I'm guessing your astra doesnt; Have summer only tyres on it Have wide low profile tyres on it Has 220bhp is parked at the bottom of a steep hill. I'd imagine 'cheap' tyres would be the same if not worse than summer tyres....harder compound so less grip etc. I have low profile tyres (215/45/17) and have not had too much of a problem this time. Last time I only had a problem on a hill as thick ice had built up in front of the car where I had left it. This is why you should carry a shovel to dig up the ice in front of the car to get it moving rather than wheel spin over it. I can't see what bhp has got to do with it...whether you have 50 or 500 horses you won't use all of the power but the torque from engine. I've only been using the clutch (bite point) to get the car moving in some areas. I live at the bottom of a hill and the top of it suffers from really bad black ice (SMARTLY will confirm this) but I've managed to get up it ok without wheel spinning it. Quote Link to comment Share on other sites More sharing options...
littlebrownbike Posted January 8, 2010 Author Report Share Posted January 8, 2010 A more powerful engine will produce more BHP at the wheels at any given RPM than an less powerful engine. So random example would be 3 litre - 60bhp @ 800RPM 2 litre - 40bhp @ 800rpm And I would be willing to bet that some cheap rubber could be better than my potenza's, which are gripless in the rain nevermind the snow or ice. I'd rather do 20 seconds of wheelspinning to get my car 300 yards up the hill, then get out the shovels at 7am every morning before going to work. I tried reversing my car up my driveway, and it just wheelspun at idle in reverse!! Left foot braking gain me a few inches, but at the end of the day if you have no grip you have no grip. No amount of driving experience or technique will cure that. Quote Link to comment Share on other sites More sharing options...
Mat Posted January 10, 2010 Report Share Posted January 10, 2010 what has HP got to do with it, its torque that turns the wheels Quote Link to comment Share on other sites More sharing options...
littlebrownbike Posted January 10, 2010 Author Report Share Posted January 10, 2010 what has HP got to do with it, its torque that turns the wheels Thats why we measure in WHP... If an engine has got more HP at any given point, then its got more torque at any given point. Quote Link to comment Share on other sites More sharing options...
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