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Old 06-04-2013, 09:02 AM   #1
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Default 1/8 foam tires, how thin is too thin?

Is there any rule of thumb with regards to how thin 1/8 foam tires can be run before they should be discarded?

Isn't thinner better like with 1/12 pan cars? (arguably to reduce sidewall flex)

All I know is that the thinner the tire, the less fuel mileage you'll get and so it would be detrimental to run time which means more pitstops during a race.

All I know is that most racers do some truing of the tires with the rear tire starting off at around 74-75mm with the front reduced by 7mm or so. I saw this from all the setting sheets of the major pro racers.

Thanks in advance for any help and advice.
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Old 06-05-2013, 06:12 AM   #2
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imo in general you can say:

Tire is fast when size is about 73/66.
You can true them down to a size of 76/69
and run them until laptimes drop down fast
i think that is the case at about 69/62

all depending to the track you race (size/tire wear/layout)
and your wallet.

try to keep the 7mm ((6mm) depending on your car) split because
this infects the handling of your car.

smaller tires mean more fuel consumption cause they do less distance per turn
more rpm, more time on the trottle, sometimes more wheelspin




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Old 06-05-2013, 06:16 AM   #3
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Quote:
Originally Posted by thilo-alexander View Post
imo in general you can say:

Tire is fast when size is about 73/66.
You can true them down to a size of 76/69
and run them until laptimes drop down fast
i think that is the case at about 69/62

all depending to the track you race (size/tire wear/layout)
and your wallet.

try to keep the 7mm ((6mm) depending on your car) split because
this infects the handling of your car.





greetings



thanks for that. So it seems that laptimes would be the indicator used as to when to decide to stop using the set of tires then
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Old 06-05-2013, 06:18 AM   #4
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laptimes should allways be the indicator for setup your car :]!
in a race for sure you look out to
how much the tire wear and how long the race last and if you plan a tire change
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Old 06-05-2013, 06:20 AM   #5
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69/62 is when I bin them.
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Old 06-05-2013, 08:31 AM   #6
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Remember ...... you can always alter your gearing to account for the smaller diameter tire your using.
That way you won't have fuel issues when you have to / want to use a smaller diameter tire.

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Old 06-06-2013, 10:49 PM   #7
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They're too thin when they hit plastic...
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Old 06-10-2013, 06:42 PM   #8
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Quote:
Originally Posted by JamesHealey View Post
69/62 is when I bin them.
LOL save those and send them on over the fronts i just tossed where at 58mm and the rears at 63 i'll give those to a local 2w pan car guy to run awhile longer
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Old 06-17-2013, 04:49 AM   #9
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They're too thin when they hit plastic...
given my limited budget this is how i look at it!!
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Old 06-17-2013, 07:30 PM   #10
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this is why i switched to nitro buggy, why the tyres sooo pricey and wear out fast. sweet of sound when change the transmission and speed its awesome, but i cant deal with the tyres they should made cheaper tyres, or go rubber
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Old 06-17-2013, 08:27 PM   #11
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this is why i switched to nitro buggy, why the tyres sooo pricey and wear out fast. sweet of sound when change the transmission and speed its awesome, but i cant deal with the tyres they should made cheaper tyres, or go rubber
hmm are you sure what tire works were with what insert and then wheels to boot and then blow threw them in 2 weeks instead of onebut you have to have 8 different sets to get threw the day wet dry loam blue groove really? cheaper?
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Old 06-17-2013, 09:20 PM   #12
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Quote:
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hmm are you sure what tire works were with what insert and then wheels to boot and then blow threw them in 2 weeks instead of onebut you have to have 8 different sets to get threw the day wet dry loam blue groove really? cheaper?
Exactly!! Plus how many different patterns are there? And different tires for different tracks!! At least with the foams its the same for almost every track...
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Old 07-07-2013, 11:22 AM   #13
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Quote:
Originally Posted by banana rt View Post
this is why i switched to nitro buggy, why the tyres sooo pricey and wear out fast. sweet of sound when change the transmission and speed its awesome, but i cant deal with the tyres they should made cheaper tyres, or go rubber
Off road buggy tires are much more expensive than on road besides your arsenal will be bigger in off road since different track conditions calls for different treads so your not saving at all
Just an excuse I love it when you get a comment that they run off road cause its cheaper
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Old 09-28-2016, 06:16 AM   #14
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How should the worn tires look like regarding cone? Should the finished tires show camber, or should they have the same diameter inside and outside?

Does it also make sense to true some pre-camber onto the tires before racing them? Especially for the rear it takes long to see some camber on the tire.
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Old 09-28-2016, 06:54 AM   #15
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Pre-camber depends how the tire will wear on the track. Will they be like a cone shape then yes you have to true them with a pre camber. If the tire wear is straight you should true the straight as well.

Front is best to have them a bit of camber. On the rear it depends a more cone shape will also act like more toe-in so you must find a compromise. Keeping the rear tires straight is OK but most of the time a tiny bit cone shape is better.
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