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Author Topic:   HOOSIER TRIES
HarrisMod#30
Dirt Freak

Total posts: 353
posted October 03, 2004 11:16 AM  
Need some info on hoosier tires, never ran hoosiers before so we have no clue what these numbers mean.....
Whats the differnce between a hoosier 26.5 and a 27.5 8.0-15scl
also the rules say a,d,orh40 what do these numbers mean?
Thanks

[This message has been edited by HarrisMod#30 (edited October 03, 2004).]

sdracer12
Dirt Maniac

Total posts: 180
posted October 03, 2004 01:52 PM  
OK, lets see... 26.5 is the size of tire. 26.5's usually roll out around 85" circumference, while the 27.5 is usually around 87-88" around. We run (3) 26.5's and one 27.5 on the RR.

A,D,H are tread hardness. D is softest, A is in the middle, and an H40 is very hard. In the upper midwest, we usually run mostly A40's all around, or D40's on the front only. Sometimes a H40 on the RR when the track gets locked down...

Hope this helps!!

HarrisMod#30
Dirt Freak

Total posts: 353
posted October 03, 2004 02:20 PM  
Ok, do you know what the rpm differance will be going from an american racer(usually the average is 80-82 inches) to a 26.5?

So, if i am understanding this right, basically the differnce in the 26.5 and 27.5 would be used for stagger purposes?

Also i was looking at the hoosier website, and if i am looking at the right tires this wil be a chain link design tire?
http://www.hoosiertire.com/otdtire.htm

thank you!

[This message has been edited by HarrisMod#30 (edited October 03, 2004).]

[This message has been edited by HarrisMod#30 (edited October 03, 2004).]

sdracer12
Dirt Maniac

Total posts: 180
posted October 03, 2004 05:07 PM  

 
On what size track?? On a 3/8 track with the same gear, the Hoosier 26.5 should slow down your rpm about 500rpm. As far as gear selection, we usually go 2 steps shallower on gear selection for similar track conditions. So, if we run a 5:83 gear at a big 3/8 track with sweeping turns on Hoosiers, we would usually switch to 5:43 gear for Amer.Racers.


And yes, the only difference is the size of the tire, for stagger purposes. We run 3" stagger (Hoosiers) on the same car which needs 1" only on Hockey pucks.

E-Mod A-40 is a super chainlink, "rain tire". Grooving this tire does help...

[This message has been edited by sdracer12 (edited October 03, 2004).]

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