looks like misterknob.com is available

 

Last week we had 108, 105, 104 temps here and the knob was not that hot. This is a reason to get the windows tinted and buy a $6.99 window shield from Target. That will work fine.

 

That sounds kinky.

 

I've got tint and a sunshade. I often leave my windows cracked 1cm and the roof tilted with the roofshade 1cm open. Even then, it makes my knob hot.

If sunshades and tint solve the problem, then why do kids die in fully shaded trunks? Answer: IR radiation generates heat on the paint, which is conducted from the paint through the body, then radiated as IR again. In the cabin, the headliner and glass don't insulate for crap, and the interior of the car gets much hotter than the outside. Place a metal shift knob in there and it will slowly rise to the same temp.

 

I absolutely agree with that. I had one in my GSR. Though I liked the look, it would do the same thing. The knob would come off in my hand and damaged my shaft.

 

This coming from a guy named "Big Willie"...

 

Who says it solves the problem? These products really mitigate the heat in the cabin to a bearable level. We are at a mile high here and the sun's radiation is much more concentrated than any other major city in the U.S., but it still leaves the "hot knob" from getting to hot. My car sits out in the sun all day without any shade. I was just trying to help because those things work for me. I guess your hands are just more sensitive. :theghey:

j/k

BTW, the kids/pets die because of dehydration caused by the heat. If they had enough water they could survive until the sun went down but that is a different topic.

Solution: Just shift and take your hand away quickly. After a few shifts your hand would absorb some of the heat held in the knob (knob to hand transfer) and your endurance to it will increase along with the temp of the knob decreasing.

 

Suffocation

 

Kinda...its heat exhaustion...it takes ALOT longer to die from dehydration
dehydration is a sympton of heat exhaustion...however childern could still die from heat exhaustion with water to drink

 

I like how this thread has somehow gone from shift knobs to what happens when you stuff baby in the trunk of your car.

 

haha. i know...

 

Tender......hands.......

If the shifting knob was really heated by the interior air temperature, I think no matter what type of new knob you put into it, it is going to get equally hot.

 

Umm, you did

Yeah, I grew up in Denver, and left at 27 y/o. In my experience, car interiors are hotter in Texas. It's no comparison. I'm not sure why -- because I got sunburned easier in Colorado, which jives with your statement about the sun intensity. I think it's just outside temp and humidity. Since we have more humidity here, the air's specific heat is higher. 100 degrees here in Austin transfers heat more quickly than 100 degrees in Denver.

Short touches on the hot knob do keep me feeling good but I shouldn't have to work so hard to feel good. I'm gonna try a wood knob. I think I can turn one in less than an hour -- though my lathe hasn't been turned on in 2 years -- so my turning skilz are surely lacking. I'll chime in with the results if I ever get around to it. By then it won't be hot any more. <sigh>

 

That's correct, but some materials won't feel as hot. Look at cookware: a cast iron skillet with a metal handle of 200 degrees probably requires a hot pad (unless you have "cook's hands.") A wooden handle at 200 degres is tolerable.

Think about the specific heat, density, and insulative properties of the material used. The leather around the stock knob feels cooler because it insulates your hand from the steel and has low specific heat. It feels better than the steel even though it's the same temp. In the same way, a wooden knob will insulate your hand from the core of the wood. Since it has low specific heat, the surface temp will drop rapidly when contacted by your "cold" hand. This surface is also insulated from the core, so it doesn't feel so hot.

If you consider aluminum, it's not going to perform so well even though it has a very low specific heat. The problem is that it's a poor insulator, as it conducts heat very rapidly. While your hand would rapidly cool the surface, the remaining heat would quickly be spread back to the cooler material. Overall, aluminum would feel better than stainless steel though, but it still wouldn't feel comfortable IMO.

 

I'm liking all the ideas that I'm getting from the group. The comments about specific heat really do make sense. I guess these are severe cases of heat problems here in the DC area and its not a regular occurence. The stupid law makers in VA make sure that we don't tint our windows too much along with the fact we can't have radar detectors. I'm starting to think going to a leather knob, carbon or wooden knob would be best.

 

Just wear a glove!! GOD!! Why would you put a getto wooden knob! sad!

 

It's because the "wooden handle" is not at 200 degree. Yes, different material conduct heat at different rate. But if the "wooden handle" is at 200 degree C, trust me, it is no where near "tolerable". And I did not read the entire post you have, so I hope I did not repeat your post.

Yes, you are correct about different material has different specific heat, which I overlooked. A material with higher value of specific heat just mean it take more energy to raise its temperature comparing to a different material with lower specific heat. Also, a material with lower specific also conduct energy easier, which means it cools down faster.

So, if the aluminum part of the MT knob is too hot to handle, keep your hand onto it before start your car, and count to 5. After that, remove your hand. And if there is not blister in you palm, you are good to go!!

 

Celcius? <southern drawl> Boy, where you from? </southern drawl>

Ouch!

 

How did that happen?

 

Google image search for "palm blister"

 

Hey guys, new owner of an 05
I have my razo from my old car, but can't seem to get it on. i've unscrewed the stock knob but my knob won't fit because the thing that holds the boot up is blocking the razo from going all the way down in order to thread.

pls advise, tks