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10-26-2013, 02:07 PM
#1667
10-26-2013, 03:51 PM
#1669
I pulled out the caliper to make some comparisons and used the following speed calculator with the only variable being the tire diameter to get the following results for estimated top speed with each combination:
http://scriptasylum.com/rc_speed/top_speed.html
Although the RIDE spec tires do fit rather clean on the 26mm wheels with 6mm offset, there is clearly a disadvantage in doing so by losing roughly 0.34 mph, and the difference in speed 2.15 mph lost simply by changing over to the new spec tires, I definitely saw this first hand when racing other drivers running the HPI tires at my local track. I have not tried to alter my gearing to accommodate the smaller diameter tire, so I guess it's entirely possible to make up the difference there maybe?
*** EDIT ***
using the calculator, I had to drop 7 teeth on the 64P spur to get the same speed with the Tamiya tire as the RIDE on 26mm wheel.
*** EDIT ***
the more I study the difference between the RIDE spec on 24mm wheel vs 26mm wheel, I'm starting to think maybe that the 26mm might do better overall. The tire on the 26mm wheel is far more flat across the width providing more contact patch and will undoubtedly be less susceptible to ballooning which may provide better traction in corners... however the 24mm wheel feels softer which in turn might make it better. Perhaps it can all boil down to 24mm wheels doing better on carpet with 26mm wheels doing better on asphalt... who knows?
Also recheck your ride height when changing over to the RIDE tires as the whole geometry changes with the car being significantly lower to the ground. There is 0.8mm difference just from swapping between RIDE spec tires on 24mm vs 26mm wheels!
http://scriptasylum.com/rc_speed/top_speed.html
Although the RIDE spec tires do fit rather clean on the 26mm wheels with 6mm offset, there is clearly a disadvantage in doing so by losing roughly 0.34 mph, and the difference in speed 2.15 mph lost simply by changing over to the new spec tires, I definitely saw this first hand when racing other drivers running the HPI tires at my local track. I have not tried to alter my gearing to accommodate the smaller diameter tire, so I guess it's entirely possible to make up the difference there maybe?
*** EDIT ***
using the calculator, I had to drop 7 teeth on the 64P spur to get the same speed with the Tamiya tire as the RIDE on 26mm wheel.
*** EDIT ***
the more I study the difference between the RIDE spec on 24mm wheel vs 26mm wheel, I'm starting to think maybe that the 26mm might do better overall. The tire on the 26mm wheel is far more flat across the width providing more contact patch and will undoubtedly be less susceptible to ballooning which may provide better traction in corners... however the 24mm wheel feels softer which in turn might make it better. Perhaps it can all boil down to 24mm wheels doing better on carpet with 26mm wheels doing better on asphalt... who knows?
Also recheck your ride height when changing over to the RIDE tires as the whole geometry changes with the car being significantly lower to the ground. There is 0.8mm difference just from swapping between RIDE spec tires on 24mm vs 26mm wheels!
Last edited by billdelong; 10-26-2013 at 04:23 PM.
10-27-2013, 06:12 AM
#1674
Tech Champion
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Yes only the Ride tire with the supplied insert are spec'd you can use any 24 or 26mm non dish wheel. The light weight Ride rims are going to be hard to beat for all out performance just based on weight alone but we understand that guys still want looks or offset.
10-27-2013, 06:59 AM
#1675
I haven't been in the race scene since april. I'm now trying to get back to the track, but it seems a few things have changed. I like the look of the new Camaro body. How does its handling compare to the RX8, which is what I ran before?
I run a T3'10, what offset wheels will work best using the Camaro body with the new spec tire?
I was running a d3.5, but understand now its not legal. What is a few of the popular motors that people are having good luck out of? BTW I run a SP Revention ESC.
JLFX CAR AUDIO, is Thunder requiring the new tire yet? Whats my choices there now for club races?
I run a T3'10, what offset wheels will work best using the Camaro body with the new spec tire?
I was running a d3.5, but understand now its not legal. What is a few of the popular motors that people are having good luck out of? BTW I run a SP Revention ESC.
JLFX CAR AUDIO, is Thunder requiring the new tire yet? Whats my choices there now for club races?
10-27-2013, 07:21 AM
#1676
Quite a few mfg's never submitted them to ROAR due to the fact ROAR does not have any 21.5 classes, but built them using ROAR spec's
10-27-2013, 07:37 AM
#1677
Alloy slash . thunder is the only track that I know of that's keeping all D3.5 off the track during big events or point series races. Also these events will also be the only ones that will require treaded tires . I don't seen them going to the speck tire this winter . tho I have already got 3 sets to test
10-27-2013, 08:13 AM
#1678
I pulled out the caliper to make some comparisons and used the following speed calculator with the only variable being the tire diameter to get the following results for estimated top speed with each combination:
http://scriptasylum.com/rc_speed/top_speed.html
Although the RIDE spec tires do fit rather clean on the 26mm wheels with 6mm offset, there is clearly a disadvantage in doing so by losing roughly 0.34 mph, and the difference in speed 2.15 mph lost simply by changing over to the new spec tires, I definitely saw this first hand when racing other drivers running the HPI tires at my local track. I have not tried to alter my gearing to accommodate the smaller diameter tire, so I guess it's entirely possible to make up the difference there maybe?
*** EDIT ***
using the calculator, I had to drop 7 teeth on the 64P spur to get the same speed with the Tamiya tire as the RIDE on 26mm wheel.
*** EDIT ***
the more I study the difference between the RIDE spec on 24mm wheel vs 26mm wheel, I'm starting to think maybe that the 26mm might do better overall. The tire on the 26mm wheel is far more flat across the width providing more contact patch and will undoubtedly be less susceptible to ballooning which may provide better traction in corners... however the 24mm wheel feels softer which in turn might make it better. Perhaps it can all boil down to 24mm wheels doing better on carpet with 26mm wheels doing better on asphalt... who knows?
Also recheck your ride height when changing over to the RIDE tires as the whole geometry changes with the car being significantly lower to the ground. There is 0.8mm difference just from swapping between RIDE spec tires on 24mm vs 26mm wheels!
http://scriptasylum.com/rc_speed/top_speed.html
Although the RIDE spec tires do fit rather clean on the 26mm wheels with 6mm offset, there is clearly a disadvantage in doing so by losing roughly 0.34 mph, and the difference in speed 2.15 mph lost simply by changing over to the new spec tires, I definitely saw this first hand when racing other drivers running the HPI tires at my local track. I have not tried to alter my gearing to accommodate the smaller diameter tire, so I guess it's entirely possible to make up the difference there maybe?
*** EDIT ***
using the calculator, I had to drop 7 teeth on the 64P spur to get the same speed with the Tamiya tire as the RIDE on 26mm wheel.
*** EDIT ***
the more I study the difference between the RIDE spec on 24mm wheel vs 26mm wheel, I'm starting to think maybe that the 26mm might do better overall. The tire on the 26mm wheel is far more flat across the width providing more contact patch and will undoubtedly be less susceptible to ballooning which may provide better traction in corners... however the 24mm wheel feels softer which in turn might make it better. Perhaps it can all boil down to 24mm wheels doing better on carpet with 26mm wheels doing better on asphalt... who knows?
Also recheck your ride height when changing over to the RIDE tires as the whole geometry changes with the car being significantly lower to the ground. There is 0.8mm difference just from swapping between RIDE spec tires on 24mm vs 26mm wheels!
10-27-2013, 03:44 PM
#1680
Thats awesome and crazy at the same time, hope this is not the only option to get offset wheels for a class where most use 200mm bodies on 190mm chassis.