Intake/Throttle Body
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Melting Slicks
Joined: Feb 2008
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From: Delmar Delaware
Intake/Throttle Body
Anybody with a fairly stock car upgrade their Intake to a Fast 90mm and a 90mm Throttle Body? Is there much to gain by doing these? I have a BP cold air intake and headers(no cats and Z06 Ti exhaust). WOuld it be worth it or overkill for me to upgrade?
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From: Middletown, DE
Former Vendor
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From: Spring Texas
St. Jude Donor '08
Anything bigger than a 80mm TB on a stock cubes engine is not going to show a significant power gain.
Remember Bernuoulli's principles of fluid dynamics. A fluids velocity in an enclosure (pipe or tube) is inversely relative to the cross sectional area of that enclosure. An oversized throttle body will result in a slower intake velocity and less air getting into the combustion chamber (especially at lower RPMs) The objective with any complete intake system is to match the needs of the engine by eleminating weak spots (kinks if you will) in the induction process.
Remember Bernuoulli's principles of fluid dynamics. A fluids velocity in an enclosure (pipe or tube) is inversely relative to the cross sectional area of that enclosure. An oversized throttle body will result in a slower intake velocity and less air getting into the combustion chamber (especially at lower RPMs) The objective with any complete intake system is to match the needs of the engine by eleminating weak spots (kinks if you will) in the induction process.
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Melting Slicks
Joined: Apr 2002
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From: Clever, MO aka SOMO
I wouldn't change the TB or intake unless you've already upgraded your heads and cam. You've got a nice set up now with your CAI and Z06 TI catbacks. I've got the same thing, plus I got a second hand Hypertech tuner installed too. My car runs just fine for me, and the little extra power is nice whenever I mash the loud pedal! 
Pro
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I wouldn't change the TB or intake unless you've already upgraded your heads and cam. You've got a nice set up now with your CAI and Z06 TI catbacks. I've got the same thing, plus I got a second hand Hypertech tuner installed too. My car runs just fine for me, and the little extra power is nice whenever I mash the loud pedal! A set of headers and a tune would do much more for you on a basically stock setup than the intake and TB.
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St. Jude Donor '09 thru '20
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