View Single Post
jpnovak jpnovak is offline
I would rather be driving
 
jpnovak's Avatar
 
Join Date: Apr 2000
Location: Austin, TX
Posts: 7,145
I often wonder if the decrease in CR and emissions were the reason. A smaller stack will have a higher intake velocity for a given volumetric flow rate. The air would then expand more as it entered the heads thus cooling and helping suspend the fuel for better burning.

maybe the increased intake velocity helped with the lower compression engines that still used the same cam specs. The overlap of an E or S cam should have a higher compression to make much torque at the lower rpms. smaller intakes would increase the velocity and momentum allowing more air to pack into a cylinder.

I could be way off, just dreaming.
__________________
Jamie - I can explain it to you. But I can not understand it for you.
71 911T SWT - Sun and Fun Mobile
72 911T project car. "Minne" - A tangy version of tangerine
classicautowerks.com - EFI conversion parts
Old 02-09-2005, 10:33 AM
  Pelican Parts Technical Article Directory    Reply With Quote #3 (permalink)