CrossfireForum - The Chrysler Crossfire and SRT6 Resource - View Single Post - Waldig tearing apart his throttle body AGAIN>>>>

Aug 12, 2009 | 04:55 AM

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onehundred80

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From: Ontario

Re: Waldig tearing apart his throttle body AGAIN>>>>

Quote:

Originally Posted by waldig

Here are new photos of the silver dollar thick plate and the s/c inlet clean up FYI.WW

The knife edge would cause separation of the air like the original square cut butterfly plate. this is why I used a smooth rounded edge to smooth the flow a bit.

The floor of the s/c is cut to lower the lip to out of the air path and to blend it into the body better. I did not polish as that was not possible in the car and benefits would be hard to measure, that gain.

Woody

A knife edge is better, imagine hitting a log with an Axe, a sharp Axe would bite deeper into the log than a Axe with a rounded edge. Ideally the butterfly would be tapered from the leading edge to the plate axis and back to a knife edge. Minimum disruption of the air is the ideal, sharp edges do that.
The square trailing edge has a vacuum and turbulence behind it, a knife edge minimizes this.
I suspect the difference between both designs would be negligible but knife edges are better.

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