They are a combination of aluminium castings and 6082 billet aluminium. Aluminium parts are NC machined to ensure accuracy and a good finish. Throttle bodies are available in 44 mm and 48 mm sizes. Bruwer Intake Throttle Bodies are manufactured by Martin Bruwer who is involved with the design, building and preparation of various racing car formulas in South Africa. Race experience include Wesbank modifieds, Touring cars, Procar series, Clubmans and off-road racing.

Design of the throttle bodies is done on CAD where after patterns are made for castings and final machining is done by CNC.

Nissan S13 FWD & RWD SR20DE/SR20DET high port motors

Soon available for SR20 VVL engine with variable cam lift and duration.

Aftermarket engine management system is needed. We recommend GOTECH Engine Management systems.

New products to meet customer needs are constantly being developed. All induction parts are designed on CAD. All products are available in kit form or as separate parts.  

THROTTLE BODY castings are LM4 and the rest is 6082 aluminum alloy and are CNC machined. The shafts run on sealed roller bearings. The butterflies are secured with countersunk screws and loctite for ease of servicing and reliability. The injector boss is positioned to ensure good fuel atomization.  

LINKAGES are manufactured from 6082 aluminum and cold rolled steel. Alluminum linkages are anodized and steel linkages are black passivate for smart appearance and protection.  

Ram Tubes feature a full 270° return on the bellmouth for additional air flow. Length and diameter of the total system has been optimized to give best performance.

Designed to bolt directly to the Nissan SR20 high port cylinder head. The complete induction system weighs in at only 3.6kgs. 2 x special cast manifold bodies. 2 x aluminium throttle bodies (available in 44 & 48mm). Throttle linkage brackets kit. Ram Tubes. Throttle bodies come completely assembled and synchronized, ready for fitment. Price is R 4500 (South African rand.)

Designed to bolt directly to the Nissan SR20 VVL cylinder head. The complete induction system weighs in at only (x) kgs. 1 x special CNC machined throttle body adaptor. 2 x aluminium throttle bodies (available in 48mm). Throttle linkage brackets kit. Ram Tubes. Throttle bodies come completely assembled and synchronized, ready for fitment.

Technical Information

Design concept of the throttle body system allow for a robust, cost effective system that is easy to adjust and fit the Nissan SR20 engine without the need for any modifications. The system use the standard injector rail, injectors and TPS (throttle position sensor).

System lengths and diameters has been optimized for maximum power and response. The system can be used for both normally aspirated and turbo applications.

Vacuum fittings are incorporated into the design to allow vacuum tap-off for brake boosters, engine management systems etc.

To date Bruwer Intake Throttle Bodies are successfully used in road race, track racing and off-road racing formulas.