New JACO sedan tire to debut at Capitol Classic
05-07-2008, 04:45 AM
#16
I had a chance to pit by Bobby at the Midwest Series, and have to say that they are really awesome looking wheels. They seemed lighter than the current design, but I'm not sure if thats the case. Both Bobby's and Paul's cars were hooked up at the Cinci race. Both of these guys had amazing corner speed, and acceleration.
05-07-2008, 06:22 AM
#17
Even amount of rubber, if you cut exactly 1 1/2 degrees of pre-camber. Makes sense in 1/8th with a solid axle, but seems like a lot of pre-camber for a sedan running a differential? I usually run 1/2 degree of pre-camber on the tires in sedan and finish the main with the same 1/2 degree of camber? Interesting?
05-07-2008, 08:34 AM
#19
Tech Regular
I'm looking forward to the new wheel as I'm sure it will be great.
05-07-2008, 09:12 AM
#20
I haven't had a chance to run them yet, but one benefit I might surmise from them would be during acceleration. Under straight line acceleration the car seems to squat more due to weight transfer and with resulting camber gain the result would place more weight on the inside edge of the tire. With a pre-cambered wheel, this would result in more rubber on the inside edge of the wheel which should lead to more forward bite. Maybe my thinking is off.....i don't know.
05-07-2008, 10:07 AM
#21
to whom it may concern
Will these tires be available for purchase at the C-Wit hobby shop before the Capital Classic? I am a strong supporter in supporting of the hobby stores that support the local tracks. I am member of the C-Wit family and i would like to the tires in the store for the local drivers to try ot use. Thanks, it just a request and a suggestion.
05-07-2008, 10:10 AM
#22
Absolutely. I have been discussing this with Carlton and Reese and I told them we would be sure to have tires in advance for the race for sale. We don't sell direct or at the track anyway.
05-07-2008, 11:00 AM
#23
Tech Fanatic
I am missing something here. It seems to me the only advantage is the fact that the tires may last a little longer. I mean, if you true a regular set of tires with 1.5 degrees of camber, it would be the same exact consequences…. Correct??? Thanks in advance.
05-07-2008, 11:32 AM
#24
If you think about how the wheel exerts force upon the track surface you will understand that the more parallel the rim is to the running surface, the more traction should result. Even though you can compensate by truing camber into the foam, the force transferred to the track is predominantly distributed to the inside edge of the wheel. If the wheel is designed to distibute that force equally across its width, and the amount of rubber is consistent from side to side, an increase in traction is the result. We have had three top drivers tell us independently that they had to remove toe-in from the rear because the car pushed when they switched directly from our old tires to the new ones. All three said they could get on the throttle earlier coming out of the turn, thus yielding more corner speed.
05-07-2008, 11:37 AM
#25
Example:
lets say you true the tires with 1.5 degrees. Now the outside has lets say 10mm of foam, and your inside will have less, like 6mm of foam.
With the new Jacos, you'll have an even 10mm of foam inside and out. The 10mm was just an example number i picked out....
05-07-2008, 12:11 PM
#26
I just finished the press release. A day early, but lets not tell Jack
05-07-2008, 12:14 PM
#27
Tech Fanatic
If you think about how the wheel exerts force upon the track surface you will understand that the more parallel the rim is to the running surface, the more traction should result. Even though you can compensate by truing camber into the foam, the force transferred to the track is predominantly distributed to the inside edge of the wheel. If the wheel is designed to distibute that force equally across its width, and the amount of rubber is consistent from side to side, an increase in traction is the result. We have had three top drivers tell us independently that they had to remove toe-in from the rear because the car pushed when they switched directly from our old tires to the new ones. All three said they could get on the throttle earlier coming out of the turn, thus yielding more corner speed.
05-07-2008, 12:28 PM
#28
1/8th Scale????? Jack, last year at the GLC in Toledo, you were testing some new 1/8th scale tires. Are those coming soon?
05-07-2008, 12:43 PM
#29
Yes, they will be coming next month.
