Quote:
Originally Posted by 25stevem
I say flat out BS to the speedmaster listed exh flow number of 72 cfm@ .100 lift !!
If true then that 1.66 exh valve is flowing as much as the 2.11 intake valve, while having 25% less curtain area @ .100 lift.
Its either produced by a mistake in the lift point used in the flow testing , or a back cut exh valve was used, or some of both.
|
Steve,
Not to say it is not BS.
But I have flow numbers from
Edelbrock Performer RPM 60599 SF1020 Ram Air IV Exhaust Alum 2.11"/1.66" @ .100 71/69 which is 97.2% Exhaust/ Intake ratio.
I also have from someone for a SBC / L98 head 1.94"/1.50" @ .100 60/70 which is 116.7% Exhaust/ Intake ratio.
Stan
__________________
Stan Weiss/World Wide Enterprises
Offering Performance Software Since 1987
http://www.magneticlynx.com/carfor/carfor.htm
David Vizard & Stan Weiss' IOP / Flow / Induction Optimization - Cam Selection Software
http://www.magneticlynx.com/DV
Download FREE 14 Trial IOP / Flow Software
http://www.magneticlynx.com/DV/Flow_..._Day_Trial.php
Pontiac Pump Gas List
http://www.magneticlynx.com/carfor/pont_gas.htm
Using PMD Block and Heads List
http://www.magneticlynx.com/carfor/pont_pmd.htm