088: Is Your Throttle Body WAY Too Big? [PODCAST]

What makes a good intake plenum? How do you fabricate one to ensure it can handle 100+psi of boost without blowing itself to pieces? And why do we even need to fit an aftermarket intake plenum in the first place? This week’s episode with D’Arcy French of Plazmaman answers these questions and many more.


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Use “PLAZMAMAN50” for 50% off our HPA 3D Modeling & CAD for Motorsport course here: hpacademy.com/courses/3d-modeling-and-cad-for-motorsport

D’Arcy started his journey in the motorsport world as a machine shop apprentice, but it wasn’t long before he stepped up in a serious way by joining the crew of a Top Fuel team as the blower tech. Eventually, this translated into full-time work designing and CNC milling parts for highly-regarded Australian performance part specialist, Plazmaman.

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Plazmaman is well known for its ultra-high quality intercoolers, throttle bodies, and intake plenums and this is naturally where the conversation heads, as Andre and D’Arcy discuss the process of designing and fabricating these works of art that do a great job of attaining an ideal balance of form and function.

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Throttle body sizing, the intricacies of plenum design, CAD modelling of parts, 3D printed prototyping, expected results of fitting an aftermarket intake manifold, and much more are all covered in this episode.

Follow D’Arcy and Plazmaman here:
IG: @biggercncguy
IG: @plazmamanracing
FB: Plazmaman.com
YT: PlazmamanAus
WWW: plazmaman.com

Don’t forget, use “PLAZMAMAN50” for 50% off our HPA 3D Modeling & CAD for Motorsport course here: hpacademy.com/courses/3d-modeling-and-cad-for-motorsport

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Comments
  • 's profile image
    I have a 431 cu in BBC with a mild hydraulic roler cam, a 671 blower, and eight 48lb injectors. For the throttle body, I am using an Enderle Bugcatcher injector hat. Blower Drive Service (BDS) sells a similar system. The injector hat has three 94mm butterflies. Some people I have talked to say that you do not need to block any of the butterflies, others say to block one butterfly, and still others say to block two butterflies. I would think that one 94mm butterfly would be plenty. Any more and the car might be hard to manage. What do you recommend?
    - jimsarapeters@gmail.com USA
    14 months ago