I just got my LongAcre durometer in the mail today.
I'm gonna start learning more about tire types, race vs street compounds, tire softeners, and drag slicks.
Oh, and perhaps engine mounts and suspension bushings.


For example in my garage now

Next will be Falken Azenis, Hoosier & Kumho autox, and some drag slicks. And then this spring what exactly tire softeners do to those readings.

 

sweet! I have some Azenis Sports...if u wanna mail your durometer to me, I can take measurements and send it back to u.
Jae

 

Nice!

Where did ya get it, and how much?

 

Umm, he said up top.. LongArce racing is a HUGE supplier of race setup equipment (and race parts).. alignment tools, racer log books, pryometers, durometers, etc..

 

I see, www.longacreracing.com

never been there before...

looks like they go for about 63 bucks + shipping probably

 

Just took a bunch more samples at my tuning shop. I know the Hoosiers should be softer than anything else so I think cold measurements are useless and warm/hot samples are needed to really compare.

Hoosier A3S03 - 88 shore
Yoko A502 (very worn) - 82 shore
Bridgestone S-03 (very worn) - 88 shore
Kumho Ecsta 711 - 75 shore

 

We'll not all tires need to be hot. M&H Racemaster slicks brand new cold read 52 today. They actually flex/mush when you press your finger on em. Wonder what they read hot after a burnout at the strip.

I'm beginning to understand why snowtires actually work at the strip.

 

Also keep in mind that the tires get harder with age and heat cycling.. to keep the test perfectly honest, you'd need to know a bit more about the history of the tires you're testing- or use brand new ones..

heheh... go to your local tire store and just start poking tires on their storage racks.