|
|
Item Posts
Sort Order
|
|
|
tire pressure
|
gib_ham
I watched NASCAR once
| Posts: 2
| Joined: 02/08
Posted: 02/12/08
09:35 AM
|
|
I am a long time dirt racer, entering my first year of asphalt racing in a steet stock. The tracks I am planning to run all use the hoosier commanche tire. I have know Idea what kind of tire pressures to run in this type of tire, and should I run bleeders? Any help would be great
|
|
|
|
Ramey
I watched NASCAR once
| Posts: 5
| Joined: 02/08
Posted: 02/16/08
09:43 AM
|
|
I think it was Mark Martin who said once, "the guy who wins is who understands the most about his tires". Everything we do to the chassis is meant to get all four tires working together.
I would contact the Hoosier Dealer in your area and also contact Hoosier directly and ask to talk to the product manager for the Commanche tire. They would be able to give you starting pressures. You could also ask a competitor most of whom are happy to at least get you in the ballpark. Hoosier's website has some good info.
https://www.hoosiertire.com/cusmain.htm
https://www.hoosiertire.com/otatire.htm
As for bleeders, one of the purposes is to ensure consistent rollout and not let a tire get too big. Where they are permitted, bleeders give you another tool to keep a variable at bay - in this case rollout or stagger (when comparing two tires) changes.
Once you have a general idea of where to start, let's say 28 right sides 22 left sides, you should take tire temps every time the car comes off the track. By monitoring tire temps you can really fine tune your pressures. As an example, if the RR is too hit in the middle only, drop a pound or two and try it.
The commanche is a bias ply so don't try the 1/2 lb thing like in 'Cup. It won't affect spring rate too much.
Also, CT has a really good article index. You can search for tire pressure or tire temps and find a ton of good articles which should get you to the front of the pack.
Hope this helps.
ramey
Ramey Womer #36 SLM
CT Technical Contributor
|
|
|
|
|
|
|
|
|