apbos
Jedi Knight
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My Christmas present that I purchased for my self 4 months ago was installed yesterday with the help of my Uncle from Holland. From now on he will be called the Carb Whisper. Out the box the carb drives the 948 better than the old HS1 ever did. I still have to install the fuel regulator, but so far I am ecstatic! Now I want to dial it in before I move on to other mods (Datsun 5 speed, disc brakes, etc..) So more questions.......
1. My dissy has a vacuum advance. There is no place to hook up a vacuum advance on my Weber 40 dcoe. I have done some reading and a balance tube ( like that on the stock intake manifold) seems to reduce the Coanda effect on Weber intakes and is a possible attachment site for the vacuum advance. What my question is what size tube? My manifold has 2 ports which can be used for a balanced tube. I have read that a smaller tube will have less fluctuation than a larger tube. The larger tube reduces the Coanda effect to a greater degree allowing fuel to flow more evenly to the cylinders.
If the mod does not help I can always go to a mechanical sissy, but $$$$$$$.
2. What air filter(s) would you recommend? I am using 2 inch stacks and have about 3 more inches of clearance.
3. How do I vent the rocker cover without an attachment to the air filters? The 948 at speed requires a slight vacuum at the rocker to keep the motor from leaking.
Regards
Paul