Skip to main content

Reply to "Why two carbs?"

Depends on what you are wanting the engine to do. If you want user friendly, high mileage low trouble and low maintenance then get a Stock 1600cc VW engine with factory single barrel carb. The trade off is the 60 HP performance. To get better performance from a VW type 1 engine usually takes the addition of carbs mounted directly on top of each head. The long intake runners it takes to run a center mounted weber 2 barrel or the old school Holley 2 barrel "bug Spray" set ups cause poor fuel atomization and intake freeze up in cooler temps. This is a main reason the dual Weber or Dellorto carbs are used. Carbs are in good condition (never buy a set of used carbs cheap unless you want real headaches) and tuned by someone who knows how,  are a thing of beauty and run wonderfully and make a healthy Type 1 engine run amazing. The other mistake people make is to install dual Webers on a tired impaired engine with compression differences between cylinders greater than 10 psi. The results magnify the engines issue , the carbs run like sh*% and kill the engine off in quick manner. So the perfect setup for any engine is one carb throat per cylinder with the carb close to the head. Even fuel injection setups for type 1 engines use dual carb like setups to get one throttle body per cylinder. To answer your question, center mounted performance carbs don't work all that well on our type 1 engines and have clearance issues with our Speedster engine compartment lids. The progressive Webers used on Porsche 914's are not so good it is an old carb designed that was designed for the 2300 cc Ford Pinto engine. They make the engine run but the performance loss is huge. I am sure many others on here will have better and possibly conflicting replies. So I end this with this being IMHO.

×
×
×
×
×