Team-BHP - View Single Post

The Wolf · 10th April 2007, 01:53

V1p3r, there are throttly body spacers that dont have the grooves at all! The grooves thingie is just a value add to the product... The main idea of a tb spacer is to increase the cc of plenum chamber...bigger the plenum chamber, lesser the charge required to suck maximum air in due to pre available air in the chamber...resulting in what?? well, more torque at higher rpms but marginal drop at low rpm!

The one which has grooves as you mentioned would function best if placed after the runners/carb as it slows down the velocity of air giving the fuel more time to mix(atomize) before entering the combustion chamber...

p.s: OE plenum chamber is designed(cc calculation) to support maximum air flow throughout the rpm band. Custom ones enhance one range on the rpm band at the cost of another one.

10th April 2007, 01:53	#77 (permalink)
The Wolf BHPian Join Date: Jan 2005 Location: Bangalore Posts: 658	V1p3r, there are throttly body spacers that dont have the grooves at all! The grooves thingie is just a value add to the product... The main idea of a tb spacer is to increase the cc of plenum chamber...bigger the plenum chamber, lesser the charge required to suck maximum air in due to pre available air in the chamber...resulting in what?? well, more torque at higher rpms but marginal drop at low rpm! The one which has grooves as you mentioned would function best if placed after the runners/carb as it slows down the velocity of air giving the fuel more time to mix(atomize) before entering the combustion chamber... p.s: OE plenum chamber is designed(cc calculation) to support maximum air flow throughout the rpm band. Custom ones enhance one range on the rpm band at the cost of another one. __________________ *I cried coz I had no turbo, till I met a man who had no VTEC!!!* Last edited by The Wolf : 10th April 2007 at 02:02.