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Master cylinders P3 P4 P5

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Master cylinders P3 P4 P5

Postby Dewey » Mon Apr 05, 2021 1:58 pm

Looking for clarification. What's allowed, what isn't. When did remote reservoir and then radial masters come in is basically what inquiring minds want to know? Before I spend the money.....lol They all hold brake fluid, compress said fluid, to the casual observer one is the same a another...right? 8)

pd
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Re: Master cylinders P3 P4 P5

Postby Colin Duncan » Wed Apr 07, 2021 9:17 am

Radial masters are not permitted in P3 and P4, can't remember about P5!
As always, ask the tech chair if you can't read the rule book!!!

Cheers,
Colin
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Re: Master cylinders P3 P4 P5

Postby Paul Brubaker » Wed Apr 07, 2021 10:39 am

If you click of FORMS at the top of the web site you gain access to the PDF rule book.

Also the P4 Early and P5 Addendums are there, Tech Forms, Score Sheets etc...

Per P5 Addendum;
l. BRAKES: Must be of a style and type available during the period. No carbon fibre discs. No wave
rotors. Maximum rotor diameter is 320 mm. Calipers shall have no more than two pairs of opposing
pistons, unless originally equipped (YZF750/ZX7R). Radial master cylinders are allowed.


Like Colin said no radial masters for P3 or P4 and the tech chair can clarify general questions.
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Re: Master cylinders P3 P4 P5

Postby Dewey » Wed Apr 07, 2021 4:19 pm

Thanks, fair enough.

As always, ask the tech chair if you can't read the rule book!!!

Cheers,
Colin

WTF have I done? I have a copy of both the VRRA and SOAR rule books in hard copy.

Paul Brubaker wrote:If you click of FORMS at the top of the web site you gain access to the PDF rule book.

Also the P4 Early and P5 Addendums are there, Tech Forms, Score Sheets etc...

Per P5 Addendum;
l. BRAKES: Must be of a style and type available during the period. No carbon fibre discs. No wave
rotors. Maximum rotor diameter is 320 mm. Calipers shall have no more than two pairs of opposing
pistons, unless originally equipped (YZF750/ZX7R). Radial master cylinders are allowed.


Like Colin said no radial masters for P3 or P4 and the tech chair can clarify general questions.



Show me the same rulebook quote for P3/4, no mention of masters, hence the reason for my question.

SOAR.......hhmmmm

pd
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Re: Master cylinders P3 P4 P5

Postby Paul Brubaker » Thu Apr 08, 2021 12:00 pm

Hello Dewy,

I am not soar at you :wink:

Just trying to help out.

It took me a while to find the P4 Early and P5 addendum. So I thought I would share.

I think that when the P3 rules were written there was no such beast as a radial master cylinder. So it was not written in the rules as such (just my guess) and the same might apply for P4.
The words
"Must be of a style and type in use during the period."
can leave room for clarification.

If the rules listed all the things you can't have the list of can't haves would be very long in the early periods.

Hope to see you out at the track this season.
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Re: Master cylinders P3 P4 P5

Postby kirbster » Fri Apr 16, 2021 1:29 pm

Paul Brubaker wrote:Hello Dewy,

I am not soar at you :wink:

Just trying to help out.

It took me a while to find the P4 Early and P5 addendum. So I thought I would share.

I think that when the P3 rules were written there was no such beast as a radial master cylinder. So it was not written in the rules as such (just my guess) and the same might apply for P4.
The words
"Must be of a style and type in use during the period."
can leave room for clarification.

If the rules listed all the things you can't have the list of can't haves would be very long in the early periods.

Hope to see you out at the track this season.



Radial masters did not exist in period 4. They came much later.
So, the rule written as " Must be of a style and type available during the period."
means - no radial masters. pretty simple.
But never any harm in asking of course.
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