# WNY Autocross 5/6 NCCC

**URL:** <https://forums.speedlife.net/t/wny-autocross-5-6-nccc/28538>\
**Category:** NYSpeed Automotive\
**Created:** [April 30, 2007, 11:50am UTC](https://forums.speedlife.net/t/wny-autocross-5-6-nccc/28538 "2007-04-30T11:50:09Z")\
**Posts on this page:** 1\
**Showing post:** 161

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**Author:** ![fairgentleman\_Z](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fairgentleman_z/32/7263_2.png) [@fairgentleman\_Z](https://forums.speedlife.net/u/fairgentleman_Z)\
**Post date:** [May 7, 2007, 12:31pm UTC](https://forums.speedlife.net/t/wny-autocross-5-6-nccc/28538/161 "2007-05-07T12:31:23Z")

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[quote=“JayS,post:160,topic:28538"”]

I believe (the FF guys can correct me if I’m wrong) that dropping pressures in the rear should help with your understeer. When I ran my wife’s Prizm in one event when the Fiero was dead I think I settled on 42F/25R to get some good rotation out of her 1.6liters of 3 speed auto fury.

[/quote]

I’ve said this before…

[quote=“fairgentleman Z,post:124,topic:27647"”]

Nah all that does is reduce the contact patch, be brave, less tire pressure in the rear = lower cornering stiffness in the rear:

Cf_a - Cr_b \> 0 = oversteer  
Cf_a - Cr_b = 0 = nuetral steer  
Cf_a - Cr_b \< 0 = understeer

For FWD car a is small…

For example a FWD car with 63/37 weight dist a would = 37 and b = 63. Therefore to approach neutral steer the cornering stiffness of the rear should be lower (achieved by running a lower tire pressure).

It’s just that overpressurizing the rear is prefered as it is much easier to control.

[/quote]

[quote=“fairgentleman Z,post:131,topic:27647"”]

And just because something works on paper doesn’t mean that is what everyone is going to do it.

[/quote]

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