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0311htp Projls1 10 Z

The TB was taken to a workbench and mounted in a vise; a carbide bit and some 80- and 120-grit paper rolls were waiting for it. Porting the Gen. III's throttle body is done to remove a restrictive ridge in front of the throttle blade and to generally make the contours smooth. You want to take out the turbulence and increase velocity, but don't go hog-wild because the carbide bit can burn through pretty quickly. Use the 80-grit to smooth out the carbide burr cuts, and the 120-grit to polish the throttle body smooth.
LS-1 F-Body - Take the Money & Run

 The TB was taken to a workbench and mounted in a vise; a carbide bit and some 80- and 120-grit paper rolls were waiting for it. Porting the Gen. III's throttle body is done to remove a restrictive ridge in front of the throttle blade and to generally make the contours smooth. You want to take out the turbulence and increase velocity, but don't go hog-wild because the carbide bit can burn through pretty quickly. Use the 80-grit to smooth out the carbide burr cuts, and the 120-grit to polish the throttle body smooth.  View Related Article

 

 

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