Polymer Racing Products introduces the worlds first carburetor spacer featuring Dimple Technology. See Dyno plots below showing real gains of Polymer Racing Products 4500 2 inch spacer against an open 2 inch spacer. Dyno measured done back to back on 496 BBC running gasoline.
The increased performance is a result of dimples delaying laminar flow separation which results in drag reduction in the intake path. The delay in laminar flow separation is causes by a phenomenon know as boundary layer turbulence which acts like a suction. A secondary effect is promotion of better air fuel mixing in the turbulent boundary layer. Learn more about dimple technology by clicking here.
The polymer material is also 1000 times less thermally conductive than aluminum which means it acts like a thermal break keeping the carburetor cool. This means cooler air flowing to the engine, which means more power.
The spacer is made with a carbon fiber impregnated polymer for maximum strength and rigidity. The spacer features aluminum sleeves at the mounting locations for maximum strength for mounting. The carb spacer also features a honeycomb internal structure allowing for a very rigid structure yet being as light as possible.
Check the Carb Spacer Gallery page for more photos.
Ready to order? Click Online Store or use the Contact Us page to make a special request.
The increased performance is a result of dimples delaying laminar flow separation which results in drag reduction in the intake path. The delay in laminar flow separation is causes by a phenomenon know as boundary layer turbulence which acts like a suction. A secondary effect is promotion of better air fuel mixing in the turbulent boundary layer. Learn more about dimple technology by clicking here.
The polymer material is also 1000 times less thermally conductive than aluminum which means it acts like a thermal break keeping the carburetor cool. This means cooler air flowing to the engine, which means more power.
The spacer is made with a carbon fiber impregnated polymer for maximum strength and rigidity. The spacer features aluminum sleeves at the mounting locations for maximum strength for mounting. The carb spacer also features a honeycomb internal structure allowing for a very rigid structure yet being as light as possible.
Check the Carb Spacer Gallery page for more photos.
Ready to order? Click Online Store or use the Contact Us page to make a special request.
Click here to watch a video of a Dyno run of a spacer with Dimple Technology.
PRP 4500 2" spacer shows a net gain of 10-15 lb-ft of torque from 5600-5900 rpm. Also shows a gain of 4-9 lb-ft of torque from 6600-7300 rpm.
PRP 4500 2" spacer shows a net gain of 12-16Hp of power from 5600-5900 rpm. Also shows a gain of 5-12Hp from 6600-7300 rpm.
Comes with O-ring to seal between spacer and intake.
