Sure, The bore of the throttle body may be be larger, but you have a butterfly smack in the middle of it taking up space and creating an impedance to the airflow.
Brian Trubee

Good point Brian. Most are like that. Here is my concept of a slide throttle
that I am building for my Kis Cruiser. This for a turbo down stream
from the compressor but I have since decided to make it larger to mitigate
the air friction losses in the long air pipe to the intercooler.

Paul Lamar
 
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