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functional diffuser project

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Old Jul 10, 2018 | 01:06 PM
  #41  
Michael Robertson's Avatar
Michael Robertson
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Joined: Jul 2018
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Default Looks good and I'm confident it's funtional

So many haters on here! I like the wor! Most of these people are out to lunch on what you need for a funtional defuser. I would ask what speeds you are looking for it to funtion at? These dedicated race cars are optimized for high speed and thus have a shallow angle on the defusser to prevent flow separation. If you are looking for a greater force at low speeds you might want to go with a steeper angle. I would also say that an under pan leading into the diffuser is vital. The defusser needs smooth, non turbulent air to work. I'm not sure I agree/understand the justification to have it stick out past the back. Turbulent airflow after the defusser shouldn't effect the defusser's effectiveness.

If you wanted to prove these haters wrong (I want you to) then you could mount a go pro and a ruler outside your wheel well drive it at 60 (or 120 ) and measure the suspension compression with and with out the diffuser and then stack weights in the trunk till you get that compression level. You would then know you have about xx lbs of down force.

Real race car:


Real race car.
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