quote:Originally posted by mike the snake:
That is the exact same air filter setup I have, but the filters are short.
Not quite. The filter gland is a different perimeter so it accepts a standard diameter K&N filter element which is available in multiple heights. Also, the center two pockets for the velocity stacks on the bottom of the filter base in the filter assembly pictured are on different centers because the Hall IDA intake has a unique distance between the center two barrels on each side. It's not a lot (somewhere around .100"-.150" IIRC) but enough that the bases wont interchange because the v-stacks wont seat in the pockets.
I don't know the origins of why this is so, but I do know it is so. If you do the layout work to determine how to center the Weber IDA barrel spacing on 4 3/8" sbf cylinder centerlines, you'll discover this unique dimension causes slight asymmetry of the four central runners on the intake compared to the four outer runners. If you were hand porting the intake you wouldn't notice this but if you were developing a step-over ball end mill CNC program to transition the round IDA openings to the rectangular port window on a sbf cylinder head, you would be expecting each pair of IDA runners to be mirror images of each other.....and on the Hall intake they are not. Ask me how I know.
Ever get the feeling you're standing on trampled ground?
Best,
K