21 replies to this topic

[Ricewind]

This project has been on hold but I will soon be able to start again. I have had time to have a re-think and my priorities have changed. For handling the unsprung weight is most important on a car that has suspension components from a heavier car. I have some 10" cosmic wheels that are considerably lighter than 13" metro wheels that I intended putting on. I am on a limited budget and so for the time being I will have to stick to the twin leading shoe drum brakes, with less weight than a Mini there is less heat generated when breaking mitigating to some extent the brake fade disadvantage associated with drums. Pluss drum brakes are lighter.

 

 

 

your car may be able to do 140 but how often does it actually do it? The outside diameter of 10s 12s and 13s if using mini tyres is not that much so the heat generated will be similar. Personally id just go for some fairly sticky tyres given its a wheel down and is presumably lighter than a standard mini.

This is a fair point, and those in the know say that the handling of a Mini on 10" wheels is the best and so definitely worth a try. I like the look of the Yokohama A032R 165/70/10's or the Yokohama A008 165/70/10's what do you think?.

[carbon]

 

It depends how you are defining loss of handling. I have 175x50 13's on mine and on a flat smooth circuit they're great but out on the road they follow every white line and rut in the road. Driving fast over those surfaces they're a real handful.

 

Thank you Norhernpower although the times that I am likely to need the V rating will be few and far between I think it probably best if they are and so the A 359's seem the best choice all round even for the rear single wheel. I had them on the front of a previouse Berkeley/Mini three wheeler that I used as my daily run. The only time that I noticed any detrimental effect was on the road going out to the Isle of Grain Kent during the construction of the channel tunnel when very heavy loads were transported on the small B road as it was back then. The ruts were quite pronounced. A lot though depends on the scrub angle of your setup, I had Metro Turbo wheels with the inner tyre wall as close as practicable to the shock absorbers. The Hilo's were set so as the upper arm just missed the bump stop so as the bump stop augmented the rising rate. The lowered position induced some noticeable negative camber. Being a three wheeler the back wheel rode between the ruts and was largely unaffected. Although pretty good generally in the wet the only negative thing that I found with these tyres was that they were not so good as the skinnier tyres were, when there was a lot of standing water about.

 

It was unexpectedly hitting deep standing water with the nearside wheel first that finally did for my first Berkeley. The car pulled to the left into a small tree and whether or not the tyres had anything to do with the outcome I cannot say for sure, I am of the opinion that it would of happened with whatever choice of tyre I had because of the depth of water.

 

 

I loved that car, may she rest in pieces (1990 - 2004 and 200,000 miles), I only hope I can get the latest project to work so well.

 

It is very easy to get serious aquaplaning or loss of grip when using wider tyres on a lighweight car in wet conditions. I had similar issues with a mini marcos on 165x10 and that was only at 60mph when hitting deep standing water.

Fortunately I did not end up in a tree. Since then I have only used 145x10 for all weather conditions.

[Rorf]

145 mph on a 10 inch tyre - I want to see that

[carbon]

[cal844]

I have experience of the Falken Cincera 145/10 tyre, they hold up well and give good road manners for the price per tyre, use Black circles and see what garages local to you can fit them(most garages won't fit customer supplied tyres), then Give them a visit for a fitting charge quote

[Ricewind]

145 mph on a 10 inch tyre - I want to see that

 

Things to consider are;

• the surface area available to dissipate heat (rolling circumference and width) is not that different (on mini tyres).
• The size of the contact patch of the tyre on the road is dependent on tyre pressure not size of wheel (wider tyre, wider and narrower patch)
• If high speeds are too tempting for me I would invest in remote tyre temperature sensors and keep within safe working temp. range.

 

 

I have experience of the Falken Cincera 145/10 tyre, they hold up well and give good road manners for the price per tyre, use Black circles and see what garages local to you can fit them(most garages won't fit customer supplied tyres), then Give them a visit for a fitting charge quote

 

Thank you for that, definitely something to consider, are yours the  145/80 R10S? I may get both types for the front; Yokos for playing and Falkens for everyday usage. I think the wider tyre patch (Yokos) would help with spirited driving but the Falkens could be better for motorway work.

[cal844]

145 mph on a 10 inch tyre - I want to see that

Things to consider are;

• the surface area available to dissipate heat (rolling circumference and width) is not that different (on mini tyres).
• The size of the contact patch of the tyre on the road is dependent on tyre pressure not size of wheel (wider tyre, wider and narrower patch)
• If high speeds are too tempting for me I would invest in remote tyre temperature sensors and keep within safe working temp. range.

I have experience of the Falken Cincera 145/10 tyre, they hold up well and give good road manners for the price per tyre, use Black circles and see what garages local to you can fit them(most garages won't fit customer supplied tyres), then Give them a visit for a fitting charge quote

Thank you for that, definitely something to consider, are yours the 145/80 R10S? I may get both types for the front; Yokos for playing and Falkens for everyday usage. I think the wider tyre patch (Yokos) would help with spirited driving but the Falkens could be better for motorway work.

Sounds good to me, the Yokohama will be ok on the motorway too