Pro stock fuel injection air intake assembly
An apparatus and a method are provided for an air intake assembly configured for use with Pro Stock vehicles comprising fuel injection equipped engines. The air intake assembly comprises an air inlet that includes a distal opening disposed in a forward direction at a front of the vehicle and configured to direct incident air into the air intake assembly. An air duct is joined with the air inlet by way of a first coupler configured to maintain an airtight seal between the air inlet and the air duct. A throttle body adapter is joined with the air duct by way of a second coupler configured to maintain an airtight seal therebetween. The throttle body adapter is configured to establish an airtight coupling between the air intake assembly and a throttle body of the engine, such that the incident air is directed into the throttle body.
1. An air intake assembly configured for use with a vehicle comprising an engine equipped with a throttle body electronic fuel injection (EFI), the air intake assembly comprising:
an air inlet configured to be disposed at a front of the vehicle, the air inlet having a first distal end of a first shape and a first proximal end of a second shape, the air inlet having a first cross-section that tapers between the first shape of the first distal end of the air inlet to the second shape of the first proximal end of the air inlet, and wherein the taper of the air inlet is comprised of a reverse curve-shape that extends proximally from the first distal end of the air inlet toward the first proximal end of the air inlet, the reverse curve comprising an upwardly concave portion that is followed by an upwardly convex portion;
an air duct to receive incident air from the air inlet, the air duct having a second distal end and a second proximal end, the air duct having a second cross-section that tapers from the second distal end to the second proximal end; and
a throttle body adapter coupled to the second proximal end of the air duct.
2. The air intake assembly of claim 1 , wherein a first coupler is configured to maintain an airtight seal between the air inlet and the air duct.
3. The air intake assembly of claim 2 , wherein the first coupler is configured with a shape and a size that substantially match a shape and a size of an opening comprising each of the air inlet and the air duct, such that one or more interior surfaces of the first coupler may be received onto smooth exterior surfaces of the air inlet and the air duct so as to form a substantially airtight seal therebetween.
4. The air intake assembly of claim 2 , wherein the first coupler is comprised of a distal portion and a proximal portion that share an intervening flexible portion configured to allow movement between the air duct and the air inlet.
5. The air intake assembly of claim 4 , wherein the first coupler is comprised of a circumferential lip configured to prevent a distal-most edge of the air duct from being pushed into the flexible portion, the circumferential lip providing a smooth transitional surface configured to reduce air turbulence within an airstream flowing near the distal-most edge of the air duct.
6. The air intake assembly of claim 1 , wherein a second coupler is configured to maintain an airtight seal between the air duct and the throttle body adapter, such that the incident air is directed to a proximal opening of the throttle body adapter.
7. The air intake assembly of claim 6 , wherein the second coupler is configured with a shape and a size that substantially match a shape and a size of an opening comprising each of the air duct and the throttle body adapter, such that one or more interior surfaces of the second coupler may be received onto smooth exterior surfaces of the air duct and the throttle body adapter, such that the incident air is directed to a proximal opening of the throttle body adapter.
8. The air intake assembly of claim 7 , wherein the second coupler is comprised of a distal portion and a proximal portion that share a pair of intervening flexible portions configured to allow movement of the air duct relative to the throttle body adapter.
9. The air intake assembly of claim 1 , wherein the air inlet and the air duct are configured to provide a direct route for air to be conducted from the front of the vehicle to a proximal opening of the throttle body adapter.
10. The air intake assembly of claim 9 , wherein the air inlet is comprised of a substantially rectangular cross-sectional shape at a distal opening that is configured to receive a volume of the incident air during forward movement of the vehicle.
11. The air intake assembly of claim 1 , wherein the air duct comprises an elongate tube having a shape and size that taper from a distal inlet opening to a proximal throttle opening, the distal inlet opening being comprised of a shape and a size that are substantially similar to a shape and a size of a proximal opening of the air inlet, thereby providing a smooth transfer of an airstream from the air inlet into the air duct.
12. The air intake assembly of claim 11 , wherein the proximal throttle opening is comprised of a cross-sectional shape and a size that are substantially similar to a cross-sectional shape and a size of the throttle body adapter.
13. The air intake assembly of claim 1 , wherein the throttle body adapter is comprised of a proximal portion and a distal portion configured to be joined with the air duct by way of the second coupler.
14. The air intake assembly of claim 13 , wherein a central opening comprising the throttle body adapter is configured to conduct an airstream to a proximal opening of the throttle body adapter, an inner surface of the central opening being configured to facilitate laminar air flow of the airstream.
15. A method for an air intake assembly for use with a vehicle comprising an engine equipped with an electronic fuel injection (EFI), comprising:
configuring an air inlet to direct incident air at a front of the vehicle into the air intake assembly, wherein the air inlet includes a first distal end of a first shape and a first proximal end of a second shape, the air inlet having a first cross-section that tapers between the first shape of the first distal end of the air inlet to the second shape of the first proximal end of the air inlet, and wherein the taper of the air inlet is comprised of a reverse curve-shape that extends proximally from the first distal end of the air inlet toward the first proximal end of the air inlet, the reverse curve comprising an upwardly concave portion that is followed by an upwardly convex portion;
maintaining an airtight seal between the air inlet and an air duct by way of a first coupler, wherein the air duct includes a second distal end and a second proximal end, the air duct having a second cross-section that tapers from the second distal end to the second proximal end;
joining the air duct with a throttle body adapter by way of a second coupler; and
directing the incident air through the throttle body adapter via the second coupler.
16. The method of claim 15 , wherein configuring the air inlet further comprises forming the air inlet and the air duct to provide a direct route for the incident air to be conducted from the front of the vehicle to a proximal opening of throttle body adapter.
17. The method of claim 15 , wherein joining further comprises configuring a distal portion of the throttle body adapter to be coupled with the air duct by way of the second coupler.
18. The method of claim 15 , wherein directing further comprises configuring a central opening of the throttle body adapter to facilitate laminar flow of the incident air being conducted to a proximal opening of the throttle body adapter.
19. The air intake assembly of claim 1 , wherein the first shape is a rectangular shape and the second shape is an oval shape.
20. The method of claim 15 , wherein the first shape is a rectangular shape and the second shape is an oval shape.