In prepared, carburetor venturi sizes are usually restricted and in some
cases, restrictor plates are mandated.
Turbo cars require restrictor plates and are only allowed a single turbo.
Some fuel injection modifications also incur a weight penalty.
This differs from street prepared where fuel delivery and manifolding are
unrestricted.
Rick Brown
rbrown7@pacbell.net
(408)737-1986
-----Original Message-----
From: owner-autox@autox.team.net [mailto:owner-autox@autox.team.net]On
Behalf Of Mark J. Andy
Sent: Tuesday, October 09, 2001 2:22 PM
To: autox mailing list
Subject: RE: Proposal for SP cars to compete in P ???
Howdy,
On Tue, 9 Oct 2001, Mark Sirota wrote:
> It's not immediately obvious to me that Prepared motors are inherently
> faster than Street Prepared motors.
>
> In SP, you have free intake, exhaust, and ignition with stock internals.
> So you are limited by the amount of air that can flow through the heads.
>
> In Prepared, you have fairly restrictive intake with fairly free
internals.
> So you are limited by the amount of air that can flow through the intake
> system.
And here I thought I was gonna need to get a good intake, heads, and carb
for my prepared motor! Thanks! You saved me a ton of money!
:-)
Prepared, unless I've missed something, doesn't limit intake explicitly.
The rules do prefer carbs vs. efi (except for AP I think). Is that what
you meant?
Mark
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