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jaykay · 01-27-2019, 06:58 PM

thanks man.....that is a very significant difference! I will be very interested in how this changes the performance of the engine.

I may be mistaken but I believe that this diameter is bigger than anything upstream on the 996 intake.

This change may really enhance the effect of a larger TB, putting the relationship of throttle body diameter to plenum entrance at 80 to 90 percent while allowing for more air volume vs the smaller 3.2 plenums

01-27-2019, 06:58 PM	#37
jaykay Registered User Join Date: Sep 2009 Location: toronto Posts: 2,668	thanks man.....that is a very significant difference! I will be very interested in how this changes the performance of the engine. I may be mistaken but I believe that this diameter is bigger than anything upstream on the 996 intake. This change may really enhance the effect of a larger TB, putting the relationship of throttle body diameter to plenum entrance at 80 to 90 percent while allowing for more air volume vs the smaller 3.2 plenums __________________ 986 00S Last edited by jaykay; 01-27-2019 at 07:09 PM.