throttle body pro-race DCOE sizes 45mm to 50mm

Throttle Body Pro-Race DCOE are available in sizes: 45/43/40, 48/45/43 & 50/48/45.

Product Details

800-243 -45/43/40, 45mm at ram tube face 43mm across the butterfly and 40mm at the manifold face.

800-245 - 48/45/43, 48mm at ram tube face 45mm across the butterfly and 43mm at the manifold face.

800-248 - 50/48/45, 50mm at ram tube face 48mm across the butterfly and 45mm at the manifold face.

Shafts have flats milled on them for increased flow. Housing to shaft lip seals installed behind bearings for extra sealing under high vacuum
Idle by pass air bleed screws for super smooth idle and to aid emissions tuning.
O'ring seals on front and rear mounting faces. (vacuum port for map sensor optional extra)

Manufactured from 601 Cast aluminum and are heat treated before being CNC machined. The butterflies are measured for each bore & precision machined to a 0.0005" tolerance. Butterflies are secured to centreless ground brass shafts with split screws to ensure reliability and serviceability. All are fitted with bearings rather than bushes to eliminate axial shaft movement.

We now recommend

and use SKF bearings.