I have been wondering about this......
I currently have a Steggy stage 4 ported blower + ported plenum and throttle body package. Months ago I swapped the ported TB for a twin 65mm BBK.
My question is since the plenum was port matched to the "stock" ported TB, is it better to run that one or to run the BBK one I have on there now. Rotating the throttle blades I can see a lip on the lower side of the plenum where the opening is smaller than the BBK's opening. Wouldn't this just bottleneck air, or would putting the matching ported TB be a big step down? :shrug:
I currently have a Steggy stage 4 ported blower + ported plenum and throttle body package. Months ago I swapped the ported TB for a twin 65mm BBK.
My question is since the plenum was port matched to the "stock" ported TB, is it better to run that one or to run the BBK one I have on there now. Rotating the throttle blades I can see a lip on the lower side of the plenum where the opening is smaller than the BBK's opening. Wouldn't this just bottleneck air, or would putting the matching ported TB be a big step down? :shrug: