maf and throttle body diameter

[The Radium King]

it's already been done by j.fro (see his posts earlier in the thread) i'm only fine-tuning his work by stating that the 997 plenum is a bit more advanced than the 996 (but interchangeable) and should produce better airflow, and that the pedro splitter is not required (hence lowering the price). and located some dynos to justify the work.

for me, the cayman throttle body is on it's way.

on my next parts order i'll get the 997 plenum (997 110 416 03; auto atlanta online parts diagrams are your friend when it comes to comparing parts and part numbers) and throttle body bolts. once they arrive i'll confirm diameters of the reducers and hose clamps required.

from what was posted by j.fro, and what is shown on the pedro board, the aos vent line appears to use different connectors so i'll have to confirm diameter and get some tubing for that.

i'll probably use some cheap 3" flexible duct to the maf housing until i get my new intake happening.

once everything is done i can post a list of parts required and my impressions of the end result (no dyno or anything). i'm slow, and shipping takes forever to my neck of the woods, so no results anytime soon ...

[jaykay]

Yes I am with you ....plus it's cold up here!

The driving season and mod season are co-incident

Yes I saw his post after mine. I had assumed that my 997 plenum suggestion wouldn't fit as he had gone 996

It looks like it has nice radii as you pointed out. Let us know about the diameters when you get the 997. The hardest part will getting the right silicon parts to fit nicely and look like factory quality

[Johnny Danger]

No worries King, the Dangermobile has been put away for the season as well. But, as Spring draws near, I'd love to be able to implement your design .