With the difference in tyres theres probably only about an inch difference in the overall diameter, so to make any real noticeable difference in speed you would need a much bigger wheel, maybe a 20"...Isn't it slower because of the higher spin weight (rather than the negligible extra overall weight) that the larger wheels provide? It's to do with moments (and hence torque needed to turn the wheel). The basics of it being that the engine will have to work harder to spin a weight further out from the axle.
For example...
A weight of 80N that is 0.215m away from the centre of the wheel will require more effort to turn it (17.2 N.m) than a wheel with 80N at 0.175m from the axle (14 N.m)...
Possibly hence why you don't wheelspin so much any more
I think that's right? Correct me if I've been misguided
Just wondering if 17" wheels will fit on my clio and if they do would i notice any difference in handling ie. better or worse?
With the difference in tyres theres probably only about an inch difference in the overall diameter, so to make any real noticeable difference in speed you would need a much bigger wheel, maybe a 20"...
Meaning acceleration...Gumby said:Isn't it slower...
sorry I know what your saying, but in context its more like picking up a bag of sugar by the bag, or by a handle. The weight would imo be the only factor, and wouldn't affect the performance when accelerating or at top speed in a noticeable way I dont think.Wasn't going on overall diameter, just the diameter of the alloys themselves. I also wasn't talking about speed although i didn't expressly state it i guess...
Meaning acceleration...Gumby said:Isn't it slower...
Presuming it's the same density metal, in the same style, then a 17" wheel will be harder to turn than a 14" one, therefore will accelerate slower. I know they're not the same style etc. but was just stating a point
It works on the same basis as that your arm doesn't have to work as hard to pick up a bag of sugar in your hand, than when you try to pick up the bag of sugar at the end of a metre long pole...
sorry I know what your saying, but in context its more like picking up a bag of sugar by the bag, or by a handle. The weight would imo be the only factor, and wouldn't affect the performance when accelerating or at top speed in a noticeable way I dont think.
I understand what you're saying buddy and you're right it will affect it, just not enough to be noticeable IMO.sorry I know what your saying, but in context its more like picking up a bag of sugar by the bag, or by a handle. The weight would imo be the only factor, and wouldn't affect the performance when accelerating or at top speed in a noticeable way I dont think.
Hmm not really... It's more the weight at the end of a radius that affects it.
It's kind of hard to explain without being super geeky, but yes the increased weight of the wheels will affect performance, although only marginally by means of increasing "overall weight" (you're probably only talking about 1-2kg per wheel).
The fact that the wheel itself is itself heavier and has the weight concentrated further away from its axis (ignoring circumference etc.) means that it is harder for the engine to turn.
Google moments / torque if it doesn't make sense - I'm not the best at explaining lol
Jus fitted 17" to my 1.2 16v last week. Had the original 14" on for 2 years but couldnt handle how it looked any more
Got a good deal from rochford tyres for BSA maniks with the tyre upgrade for a smaller footprint to suit the smaller arches.
What I've noticed so far is less tendency to wheelspin in the wet in 1st when pulling away. In the dry grip is much much better than standard wheels, although havent been brave enuff to put it to limit yet in fear of damaging my new wheels! I would however say that in the lower revs of the top 3 gears acceleration is slightly worse, but only very marginally. My main reason for buying them was purely for how they look tbh, always been a fan of big wheels. Cant say anythin about lowering yet as Im still shoppin around for sum springs. I guess its a matter of opinion but am well chuffed with them, think it will look the nuts once lowered. id say go for it if you like the way big wheels look, but will need lowering a little.