Tire Warmer temps for various brands

[need4speed]

Found this info on the WERA site.

Thought this might help.

This info was gathered by Sam Flemming of AoD/Roadracing World fame. I cut out the recommendation list and taped it to my Chickhawk Carrying case. The article did not mention the variables for the different compounds. If I recall correctly, all the numbers were retrieved from the reps of their respective brands:

Bridgestone ~ 80 - 90C (60-80C for 250's) @ 30-45 Min

Dunlop ~ 75 - 80C @ 45-60 Min

Pirelli ~ 50-60C @ 20-30 Min

Michelin ~ 90C @ 45-60 Min

[Stoneman]

Good shit. But how do you monitor the temp? How do we control the temp? On, off, on, off? Seriously...

[Degsy]

I have the newer Chickenhawk warmers that have a replaceable resistor that sets the temp where I want it.

derek

[legalspeed]

The woods put in a rheostat in line with the power.

chicken hawks have different thermostats.

[need4speed]

The Pole Position Chicken Hawks come with 2 thermostats. 175 & 135 degrees F. Chickenhawk standard (not pole position) are regulated to 175 deg.

[PinHead]

I bet it would be pretty easy to fabricate something to turn on and off the heat where you desire.

[Degsy]

Ed and Jay, the already have the thermostats. If you watch them, they switch on and off automatically anyway. Standard CH warmers are regulated to 175f as John said.

derek

[PinHead]

Oh I realize that otherwise they would have a melt down.
I am thinking of a variable t-stat that will let you choose what temp you would like. Think of the benifits here, you dont like to keep them on all the time because 175 is a bit much for constant heating and kills the life of the tire.
Lets say you keep it at an idle temp off track at like 120 then turn it up before racing to get them at proper temp for the race. Normally you get back and the warmers go on without power to conserve the heat in the tire and then on before the race. If you can keep them at a happy medium between races you should get a better tire life.
Another benifit would be to try different temps for different track conditions,tire manufactuers etc.... I know Dan started a log of tire temps and density changes last year before and after each race. If we could also have more freedom to try different temps vs. compounds it may turn out to be a little edge that you can use when deciding on what tires you may want to buy or use in that race.

.02 cents

[need4speed]

Degs,

Which chicken hawks do you have, as the standard ones only come with one setting - 175 F .

[Degsy]

Originally posted by need4speed
Degs,

Which chicken hawks do you have, as the standard ones only come with one setting - 175 F .

Pole position ones with multiple thermostats.

degs

[Collision pro]

Originally posted by Degsy
Pole position ones with multiple thermostats.

degs

Have you ever used the other thermostats?

[Degsy]

Yep, if I have a long delay between races I will put on the low temp thermostat.

derek

[Rye]

How long of a delay Degs? I had a lengthy conversation with the Michelin guy and he claims it is not good as it ultimately creates one very long heat cycle.

[Degsy]

Well, if there is a 45 minute to 1 hour delay I'll put the low temp on. Over that and I'll just cover the tires with the warmers and leave them unplugged.

derek

[need4speed]

Kevin,

What would you say would be the minimum amount of heat time to be sufficient?

[TLRMan]

Invest in one of those infrared thermometers...Just point and shoot, will give you all the info you need, then adjust thermostats accordingly.

[Collision pro]

Just leave them on all day.......less heat cycles!!