Triple Stromberg Intake Manifolds - Good Parts - Performance Engineering for the Triumph TR6

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Home / Engine / Triple Stromberg Intake Manifolds

TR6 Manifold Kit

Fuel Line Kit

GT6/175CD Manifold Kit

GT6 end view

The Triple Stromberg System has grown steadily in popularity since I introduced it in 1991. More and more TR6 owners are realizing how well it performs, offering the high performance they want without a sacrifice in fuel economy or street manners. I have had great success using this system on high performance TR6 engines that I have built and have received excellent reports from customers who have installed the kit on their engines as well. I have always worked with the 175CD's but some of my customers have had equal success using SU HS6's. Strombergs and SU's have a sliding air valve creating a variable venturi to maintain high air velocity across the jet regardless of the volume of airflow. At idle when the engine is using very little air the air valve is only open a crack so the air still rushes past the jet to properly mix the fuel. As the throttle is opened and the load on the engine is increased the air valve rises, riding on the airflow to maintain velocity. At full throttle under load the air valves are fully open exposing a wide-open passage for air. This performance simply cannot be matched by a fixed venturi carb. If a fixed venturi is sized large enough to provide adequate flow at high rpm it will not mix the fuel properly at low rpm resulting in poor fuel economy. With triple Strombergs the fuel mileage is generally in the mid 20's and the performance is fantastic with instant acceleration and smooth power throughout the rpm range. Installation is easy with no modifications required to the stock carburetors. This system is a worthwhile improvement to a stock engine and is of even greater benefit to a modified engine.

* Manifold kit includes: aluminum manifolds with balance and heater tubes, interconnecting hoses,clamps, linkage lever, hardware and instructions.
* Uses original gaskets and linkage (not included).
* Stainless steel fuel line sold separately. Includes 1/4" and 5/16" inlet adapters, clamps and hoses.

Rebuilt TR6 Engine

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Manifold Kit TR250 to TR6 thru 71
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Manifold Kit TR250 to TR6 thru 71

Price: US $399.00

Fits three Stromberg 175CD or 1.75" SU carbs to TR250 or TR6 thru 1971. Intake port spacing 1-7/8" center to center.

Manifold Kit TR6 1972 thru 1976
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Manifold Kit TR6 1972 thru 1976

Price: US $399.00

Fits three Stromberg 175CD or 1.75" SU carbs to TR6 1972 thru 1976. Intake port spacing 2-3/16" center to center.

Triple Manifold/Carb Assembly, TR250 to TR6 thru 1971
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Triple Manifold/Carb Assembly, TR250 to TR6 thru 1971

Price: US $1,349.00

Assembly includes triple manifold, three rebuilt 175CD carbs, linkage and gaskets. Fuel line kit sold separately.

Triple Manifold/Carb Assy, TR6 1972 thru 1976
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Triple Manifold/Carb Assy, TR6 1972 thru 1976

Price: US $1,349.00

Assembly includes triple manifold, three rebuilt 175CD carbs, linkage and gaskets. Fuel line kit sold separately.

Manifold Kit, GT6 Triple 150CD

Price: US $449.00

Fits three Stromberg 150CD carbs to MK2 or MK3 GT6 with intake port spacing 2-3/16" center to center. Manifold has water tube with 1/2" hose connection front and rear. Available with threaded bung in rear for heater valve banjo fitting.

Manifold Kit, GT6, Triple 150CD, with heat bung

Price: US $479.00

Sorry, no photo. Looks same as 175CD manifold except for the carb mounting flange. Fits three Stromberg 150CD carbs to MK2 or MK3 GT6 with intake port spacing 2-3/16" center to center. Manifold has water tube with 1/2" hose connection in front and threaded bung in rear for heater valve banjo fitting.

Manifold Kit, GT6 Triple 175CD
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Manifold Kit, GT6 Triple 175CD

Price: US $449.00

Fits three Stromberg 175CD carbs to MK2 or MK3 GT6 with intake port spacing 2-3/16" center to center. Bonnet clearance is very tight to front carb. Best with shorter 175CD's from TR4. Manifold has water tube with 1/2" hose connection front and rear. Available with threaded bung in rear for heater valve banjo fitting.

Manifold Kit, GT6, Triple 175CD, with heat bung
more info...

Manifold Kit, GT6, Triple 175CD, with heat bung

Price: US $479.00

Fits three Stromberg 175CD carbs to MK2 or MK3 GT6 with intake port spacing 2-3/16" center to center. Bonnet clearance is very tight to front carb. Best with shorter 175CD's from TR4. Manifold has water tube with 1/2" hose connection in front and threaded bung in rear for heater valve banjo fitting.

Fuel Line Kit, Triple Stromberg
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Fuel Line Kit, Triple Stromberg

Price: US $49.00

Triple Fuel Block
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Triple Fuel Block

Price: US $39.00

(Not required with fuel line kit)

Folded Coupler, Carb Shaft
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Folded Coupler, Carb Shaft

Price: US $22.00

Price per each. Two required.
The triple carb set-up uses two folded couplers to join the carb shafts together. It is possible to re-use your original couplers but new ones are strongly recommended. The original couplers are made of fairly thin material and allow some wind-up that effects the synchronization of the carbs. The new couplers are made of thicker material to minimize wind-up.

more info...

Spacer, Insulator, Carb to Manifold, 175CD

Price: US $8.00

Choke Cable, Triple Stromberg, TR6

Price: US $99.00

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12/24/2009

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