Spring rate help?

Dwnshift · 08-17-2014, 09:37 PM

So much depends on the 4 black rubber things that touch the road.
When we switched from Hoosier/ Contis to the Pirellis... We didnt have anything stiff enough on either end. (Bars)
And I can say this ... Our front bar with both of our "smaller" blades flat ... Is still stiffer than a hotchkis front.
And it was the first time we ever ...busted out the "big" rear bar...

BGTV8 · 08-17-2014, 10:14 PM

Quote:

Originally Posted by Dwnshift

So much depends on the 4 black rubber things that touch the road.
When we switched from Hoosier/ Contis to the Pirellis... We didnt have anything stiff enough on either end. (Bars)
And I can say this ... Our front bar with both of our "smaller" blades flat ... Is still stiffer than a hotchkis front.
And it was the first time we ever ...busted out the "big" rear bar...

But the Hoosier/Conti were about ~650mm dia and the Pirelli's are 680mm dia, so could it be that the diffference in a baggier tyre (taller sidewall and possibly substantially different construction) means more suspension effect in the tyre and you need to run a much stiffer setup on bar to take account of it ??

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08-17-2014, 09:37 PM	#1 (permalink)
Dwnshift Track Member Join Date: Feb 2012 Location: Cincy Posts: 717 Drives: NISMO 370Z RC Rep Power: 16	So much depends on the 4 black rubber things that touch the road. When we switched from Hoosier/ Contis to the Pirellis... We didnt have anything stiff enough on either end. (Bars) And I can say this ... Our front bar with both of our "smaller" blades flat ... Is still stiffer than a hotchkis front. And it was the first time we ever ...busted out the "big" rear bar...