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Flieger Flieger is offline
Max Sluiter
 
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Join Date: Mar 2006
Location: So Cal
Posts: 19,580
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I think the cookie cutters were an attempt to tune the extractor effect to a cetain rpm. Isn't the middle tube of the cookie cutter actually tapered like a sort of reverse cone? This would change the resonant frequency of the exhaust pulses, IIRC.
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1971 chassis, 2.7RS spec MFI engine, suspension mods, lightened

Suspension by Rebel Racing, Serviced by TLG Auto, Brakes by PMB Performance
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Last edited by Flieger; 06-18-2011 at 10:25 AM..
Old 06-18-2011, 10:22 AM
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