Started by JB21, January 24, 2023, 18:23
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Quote from: Anon on January 25, 2023, 15:05Now if you google it or speak to petrol heads, they will always tell you that low profile tyres have more grip. Fashion puts bigger wheels at pole position every time so to speak.When you look at Formula type cars F2000 F3000 F1 etc, all the really fast single seater stuff, radicals etc - they do not run low profile tyres.That seems like a contradiction to me? Typical low noise, high fuel economy tyres are all pretty wibbily wobberly when you fit them and so obviously wallow about under load. So the lower profile will give a more direct feel.When you are playing with big boy tyres like Direzza's etc, I've personally fitted some of these semi slick tyres and they are very hard work fitting them. The core/walls are very strong and offer very little flex. Sometimes two lads are needed to get them over bead on the tyre machine! Two lads who end up sweaty and swearing. They don't even squidge out at the bottom when flat (oh you've got a flat tyre... don't worry its only flat at the bottom)I've drove lots of little cars on oversized wheels, and they can sometimes steer awful. Some call it track lining. I think it has to do with the wheels moment of inertia, I'm no engineering mathematician... but you could have 2 wheels with identical total mass of e.g. 10kg, but if the mass is concentrated further outwards its MOI would be higher. I think if this gets beyond some ratio of the mass of the car and the steering/suspension components, then the wheel will become more of the boss. The wheel and tyre combination has a gyroscopic effect and doesn't like to shift vector.Lotus will have spent quite a bit of time balancing aesthetics verses performance hopefully.I personally don't really know either way though. Thus interested in your experience.
Quote from: Anon on January 25, 2023, 15:05Now if you google it or speak to petrol heads, they will always tell you that low profile tyres have more grip. Fashion puts bigger wheels at pole position every time so to speak.When you look at Formula type cars F2000 F3000 F1 etc, all the really fast single seater stuff, radicals etc - they do not run low profile tyres.That seems like a contradiction to me?
Quote from: Joesson on January 27, 2023, 09:27Towards the dragster look?
Quote from: Dev on January 27, 2023, 16:16but I think it makes a silver car look exceptional with its stance.
Quote from: Anon on February 9, 2023, 13:32Condition looks really good!Do you know the offsets of them?These sold on ebay a couple of weeks back at a banging price...https://www.ebay.co.uk/itm/lotus-elise-s2-Alloy-Wheels-/225281688264
Quote from: Dev on February 9, 2023, 16:33Nice looking wheels but it is heavier than I was expecting probably because of OEM durability. Because of the offsets especially the front the car is going to be less responsive because it will change the scrub radius greatly. It probably works better with the way the Lotus suspension is set up since it is not a McPherson design. It may prove to be a good thing or bad depending on what you are looking for as you will trade the dart like response for stability. I would like to hear your experience once they are on the car as it should drive different.
Quote from: JB21 on February 9, 2023, 17:21My OZ Ultraleggera's are 38 and I didn't notice much difference compared to the OE 45. 31 is a big difference compared to OE though so this should show up in some form.
Quote from: tets on May 18, 2023, 08:53did you ever give these a try? I'm still debating whether to shod my Lotus alloys or get some ultra light 7x15's all round
Quote from: Alex Knight on June 14, 2023, 16:19Enkei RPF1 would be my next choice.