[Mike Hurst]

Restrictor Reminder #2

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The 2005 R-A rules are in effect for Sno*Drift and all other R-A rallies. This includes Trespasser's Wil / 100AW / RRNC.

Sno*Drift and TW / 100AW / RRNC are NOT being run under the previous year's rules.

The 34mm open class restrictor rules require that even open class cars with small a stock turbo such as the Mazda 323GTX are now required to have a restrictor.
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[Adrian Wintle]

>Restrictor Reminder #2
>

>The 34mm open class restrictor rules require that even open
>class cars with small a stock turbo such as the Mazda 323GTX
>are now required to have a restrictor.

Not strictly true (I think). They have to have an inlet that is no larger than the dimensions required in the rules. If the turbo inlet is less than 34mm, that should meet the rules without a restrictor, shouldn't it?

Adrian

 

[starion887]

Hi Adrian,

One would think so. Otherwise, should one hog out the inlet to create a 34 mm 'destrictor'??

However, if one were to replace the tiny inlet turbo on car XYZ in open class with a larger turbo (to improve low rpm performance for example), then one would need the restrictor.

Mark B.

 

[Mike Hurst]

>Not strictly true (I think). They have to have an inlet that
>is no larger than the dimensions required in the rules. If the
>turbo inlet is less than 34mm, that should meet the rules
>without a restrictor, shouldn't it?
>
>Adrian

Right, but a stock 323GTX is ~ 37mm, a stock DSM is ~41mm.