Quote:
"Nah! That can't be right? The T-Bird has DOHCs, and so it HAS to rev higher than a Big Twin!!!"
It has nothing to do with the valve gear. It's the length of the stroke.
The T-Bird at max power is turning 3000 feet per minute.
A Speedy at max power (7400rpm according to the spec chart on our Home Page) is turning 3300 fpm.
Stroke x 2=1 (revolution) divided by 25.4 = inches per rev
Inches per rev x max power rpm divided by 12 = feet per min
6400rpm for the T-Bird is 4000 feet per min, the normal limit for street engines.
Steelheart- '03 Speedmaster Black/Yellow
The Hayabusa Killa
16" Shorties/140 mains/Airbox drilled
Procom CDI
"There is no cure for Celibacy. But we can treat the symptoms."
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