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Tyres: Best foot forward? or back?
Hi Guys,
Have seen quite a lot of good info 'bout tyres on this group. And a few times it's been mentioned that on FWD cars, it's best to have the better pair of tyres at the rear. Firstly, is that the general opinion of the Alfisti on this group? Second, anybody got an idea why this is so? Reason I ask: I've always thought the opposite was true i.e. the better pair should go in front cause: a. in daily driving, your need for traction/grip is greatest when you have to slam your brakes in an emergency - and that requires most grip in the front...otherwise you'll have less braking force before your ABS kicks in b. it's harder to correct a front wheel skid than a rear wheel skid => put the "skid prone" tyres at the back. BC 156 Seles |
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#2
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"Buzzardous Cross" > schreef in bericht
om... > Hi Guys, > Have seen quite a lot of good info 'bout tyres on this group. And a > few times it's been mentioned that on FWD cars, it's best to have the > better pair of tyres at the rear. > Firstly, is that the general opinion of the Alfisti on this group? From earlier discussions: NO > Second, anybody got an idea why this is so? > Yes > Reason I ask: > I've always thought the opposite was true i.e. the better pair should > go in front cause: > a. in daily driving, your need for traction/grip is greatest when you > have to slam your brakes in an emergency - and that requires most grip > in the front...otherwise you'll have less braking force before your > ABS kicks in > b. it's harder to correct a front wheel skid than a rear wheel skid => > put the "skid prone" tyres at the back. > > BC > 156 Seles In principle you are right, but that is also the reason why you are wrong. That traction is important for braking as well as accelerating is very true, but slips normally don't occur during normal accelerating or braking, but when driving at a more or less constant speed in a curve or in aquaplaning or when /after you switch lanes etc. Most important reason is active safety for the "normal"driver and under normal circumstances.. It's not the fact that it's harder or not to correct a front or rear slip, but the fact that you will have a lot more time to notice a front slip than a back slip. Assuming you are driving forward (!), when you get a front slip, the front of the car will be in front of you; you can see it coming and have time to do things to avoid it. The first moment you notice a rear wheel slip is when you see the rear of the car in front of you, leaving no more time to correct; you are back front all ready. -- Ciao from Holland AlfistaGJ (Gert-Jan) Alfa red 156 SW 1.8 Madeno tuned (2000) Golden Montreal 1428700 (1973/4) |
#3
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> From: (Buzzardous Cross) > Organization: http://groups.google.com > Newsgroups: alt.autos.alfa-romeo > Date: 12 Aug 2004 06:58:22 -0700 > Subject: Tyres: Best foot forward? or back? > > Hi Guys, > Have seen quite a lot of good info 'bout tyres on this group. And a > few times it's been mentioned that on FWD cars, it's best to have the > better pair of tyres at the rear. > Firstly, is that the general opinion of the Alfisti on this group? > Second, anybody got an idea why this is so? > > Reason I ask: > I've always thought the opposite was true i.e. the better pair should > go in front cause: > a. in daily driving, your need for traction/grip is greatest when you > have to slam your brakes in an emergency - and that requires most grip > in the front...otherwise you'll have less braking force before your > ABS kicks in > b. it's harder to correct a front wheel skid than a rear wheel skid => > put the "skid prone" tyres at the back. > > BC > 156 Seles Common thought is that it is better to have the better tyres on the back of a front wheel drive car as you have no control over the back wheels and so you want them to be less likely to skid. Personally, however I prefer the better tyres on the front. For me, the understeer on the front with bad tyres makes driving more difficult and dangerous. Also, if the front wheels are the only wheels you have control over, I'd rather the grip was on them. It seems to be something people are fairly divided on, although most agree with the 'correct' theory which is good tyres on the back. I, however, disagree. |
#4
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Alfistagj wrote:
> "Buzzardous Cross" > schreef in bericht > om... >> Hi Guys, >> Have seen quite a lot of good info 'bout tyres on this group. And a >> few times it's been mentioned that on FWD cars, it's best to have the >> better pair of tyres at the rear. >> Firstly, is that the general opinion of the Alfisti on this group? > > From earlier discussions: NO > >> Second, anybody got an idea why this is so? >> > > Yes > >> Reason I ask: >> I've always thought the opposite was true i.e. the better pair should >> go in front cause: >> a. in daily driving, your need for traction/grip is greatest when you >> have to slam your brakes in an emergency - and that requires most grip >> in the front...otherwise you'll have less braking force before your >> ABS kicks in >> b. it's harder to correct a front wheel skid than a rear wheel skid => >> put the "skid prone" tyres at the back. >> >> BC >> 156 Seles > > In principle you are right, but that is also the reason why you are wrong. > That traction is important for braking as well as accelerating is very > true, but slips normally don't occur during normal accelerating or > braking, but when driving at a more or less constant speed in a curve or > in aquaplaning or when /after you switch lanes etc. > > Most important reason is active safety for the "normal"driver and under > normal circumstances.. > It's not the fact that it's harder or not to correct a front or rear slip, > but the fact that you will have a lot more time to notice a front slip > than a back slip. > Assuming you are driving forward (!), when you get a front slip, the front > of the car will be in front of you; you can see it coming and have time to > do things to avoid it. > The first moment you notice a rear wheel slip is when you see the rear of > the car in front of you, leaving no more time to correct; you are back > front all ready. I'd go with this. Plus, as was explained to me: Understeer means you hit the secenery forwards, oversteer you're doing it sideways -- Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3 Tyger, Tyger Burning Bright (Remove rust to reply) Alfa 116 Giulietta 3.0l (Really) Sprint 1.7 Triumph Speed Triple: Black with extra black bits www.cuore-sportivo.co.uk |
#5
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"Catman" > schreef in bericht ... > Alfistagj wrote: > > I'd go with this. Plus, as was explained to me: Understeer means you hit > the secenery forwards, oversteer you're doing it sideways > Isn't "backways" a better description than "sideways"?? > > -- > Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3 > Tyger, Tyger Burning Bright (Remove rust to reply) > Alfa 116 Giulietta 3.0l (Really) Sprint 1.7 > Triumph Speed Triple: Black with extra black bits > www.cuore-sportivo.co.uk -- Ciao from Holland AlfistaGJ (Gert-Jan) Alfa red 156 SW 1.8 Madeno tuned (2000) Golden Montreal 1428700 (1973/4) |
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"Tom Boltwood" > schreef in bericht ... > > > It seems to be something people are fairly divided on, although most agree > with the 'correct' theory which is good tyres on the back. I, however, > disagree. > Reading all the posts back (including my own): Isn't the best way out of this discussion to just see to it that all 4 tyres are 100% o.k. (that's over 4mm profile depth) -- Ciao from Holland AlfistaGJ (Gert-Jan) Alfa red 156 SW 1.8 Madeno tuned (2000) Golden Montreal 1428700 (1973/4) |
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#8
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Alfistagj wrote:
> > "Catman" > schreef in bericht > ... >> Alfistagj wrote: >> >> I'd go with this. Plus, as was explained to me: Understeer means you >> hit the secenery forwards, oversteer you're doing it sideways >> > > Isn't "backways" a better description than "sideways"?? > Depends how fast you do it -- Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3 Tyger, Tyger Burning Bright (Remove rust to reply) Alfa 116 Giulietta 3.0l (Really) Sprint 1.7 Triumph Speed Triple: Black with extra black bits www.cuore-sportivo.co.uk |
#9
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Alfistagj wrote:
> > "Tom Boltwood" > schreef in bericht > ... >> >> >> It seems to be something people are fairly divided on, although most >> agree with the 'correct' theory which is good tyres on the back. I, >> however, disagree. >> > > Reading all the posts back (including my own): Isn't the best way out of > this discussion to just see to it that all 4 tyres are 100% o.k. (that's > over 4mm profile depth) But they way I drive means the fronts on the Sprint don't keep 4mm for very long -- Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3 Tyger, Tyger Burning Bright (Remove rust to reply) Alfa 116 Giulietta 3.0l (Really) Sprint 1.7 Triumph Speed Triple: Black with extra black bits www.cuore-sportivo.co.uk |
#10
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"Alfistagj" > wrote in message news:<2ELSc.5405$vH5.5312@amstwist00>...
> "Buzzardous Cross" > schreef in bericht > om... > > Hi Guys, > > Have seen quite a lot of good info 'bout tyres on this group. And a > > few times it's been mentioned that on FWD cars, it's best to have the > > better pair of tyres at the rear. > > Firstly, is that the general opinion of the Alfisti on this group? > > From earlier discussions: NO > > > Second, anybody got an idea why this is so? > > > > Yes > > > Reason I ask: > > I've always thought the opposite was true i.e. the better pair should > > go in front cause: > > a. in daily driving, your need for traction/grip is greatest when you > > have to slam your brakes in an emergency - and that requires most grip > > in the front...otherwise you'll have less braking force before your > > ABS kicks in > > b. it's harder to correct a front wheel skid than a rear wheel skid => > > put the "skid prone" tyres at the back. > > > > BC > > 156 Seles > > In principle you are right, but that is also the reason why you are wrong. > That traction is important for braking as well as accelerating is very true, > but slips normally don't occur during normal accelerating or braking, but > when driving at a more or less constant speed in a curve or in aquaplaning > or when /after you switch lanes etc. > > Most important reason is active safety for the "normal"driver and under > normal circumstances.. > It's not the fact that it's harder or not to correct a front or rear slip, > but the fact that you will have a lot more time to notice a front slip than > a back slip. > Assuming you are driving forward (!), when you get a front slip, the front > of the car will be in front of you; you can see it coming and have time to > do things to avoid it. > The first moment you notice a rear wheel slip is when you see the rear of > the car in front of you, leaving no more time to correct; you are back front > all ready. Thanks. Can't argue with that logic...especially because it serves the safety interests of the "normal" driver BC |
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