Dyno tire pressure

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96SOHC
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Dyno tire pressure

Post by 96SOHC » Sat Jun 18, 2011 5:18 pm

I will be dynoing on a set of 28x9 slicks...what pressure would work best for this? I know, ideally you don't want to use slicks, but in this case I have too.
Jeff Stafford
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Sponsored by Modular Head Shop, BC-Automotive, Circle D Converters

rmracing
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Re: Dyno tire pressure

Post by rmracing » Sun Jun 19, 2011 5:34 pm

I run 20 Psi in my slicks on the dyno . The key is being consistant each time you go to the dyno as changing the air pressure will affect the dyno numbers .

96SOHC
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Re: Dyno tire pressure

Post by 96SOHC » Tue Jun 21, 2011 5:03 pm

Thanks, I'll try 20 this time. I ran 14 last time, and it chewed the tires up pretty good.
Jeff Stafford
NMRA MM #6
Sponsored by Modular Head Shop, BC-Automotive, Circle D Converters

crazyman
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Re: Dyno tire pressure

Post by crazyman » Tue Jun 21, 2011 10:10 pm

Spray a little water on the roller with a mister/spray bottle and check the contact patch? :|

Warpspeed
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Re: Dyno tire pressure

Post by Warpspeed » Thu Sep 01, 2011 12:12 am

Give it a run, and measure tire temperatures across the tire.
That will tell you which way to go to get the whole tire working, not just the middle or the edges.
Cheers, Tony.

trolltuner
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Re: Dyno tire pressure

Post by trolltuner » Wed Sep 28, 2011 3:50 pm

Lots better to have some decent normal road tires. They will hold up to the roller much better. Slicks tend to fail more on the dyno with high hp cars. :oops: I have some customers that insist that at 600whp they need it, clean up the room with a snowshovel. 700whp through a pair of all season 205s with my hotrod. After a few hours up to 160mph they get warm.

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