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Old 09-10-2009, 12:56 PM   #11
The_AirHawk
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where can i get that special gauge from? i assume you are referring to the vaccuum gauge for adjustment of the carbs right?
Right down the street from you:

Airheads Beemer Club - $4 Carburetor Synchronizer
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Old 09-10-2009, 01:45 PM   #12
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You can make your own manometer with some tubing and vegetable oil. It's pretty easy and they work just fine. And when you're done, your kid has a school science project all ready to go.

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Old 09-11-2009, 05:47 AM   #13
duneswatter
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that is great, thanks a bunch, i already have 75% of the parts for that, but isnce i have 4 carbs do i need to build 2, and hook them up simultaneously, or just do 2 carbs at a time.
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Old 09-11-2009, 05:59 AM   #14
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Originally Posted by duneswatter View Post
that is great, thanks a bunch, i already have 75% of the parts for that, but isnce i have 4 carbs do i need to build 2, and hook them up simultaneously, or just do 2 carbs at a time.
Build 2 and do all 4 together; the cost of materials is nothing. A lot of the guys just install the setup on the garage wall and sync every oil change. That's a bit excessive in my book, but what the heck, tuning is fun.
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Old 09-11-2009, 08:45 AM   #15
The_AirHawk
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Quote:
Originally Posted by duneswatter View Post
that is great, thanks a bunch, i already have 75% of the parts for that, but isnce i have 4 carbs do i need to build 2, and hook them up simultaneously, or just do 2 carbs at a time.
Whichever you like. Takes a bit longer, but one will suffice. Technically, you're gonna have to switch-around from carb to carb anyway - as this just gives differential-pressure, and is not calibrated to a scale. So, to get them all in sync, you'll have to say do 1-2, then 2-3, then 3-4.

Or, you could go to J.C. Whitney and get one of the 4-gauge sync tools. But this costs almost nothing, and there's no guarantee that tool (made in China) will be accurate from gauge to gauge.
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Last edited by The_AirHawk : 09-11-2009 at 08:47 AM.
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Old 09-11-2009, 09:30 AM   #16
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Quote:
Originally Posted by The_AirHawk View Post
Whichever you like. Takes a bit longer, but one will suffice. Technically, you're gonna have to switch-around from carb to carb anyway - as this just gives differential-pressure, and is not calibrated to a scale. So, to get them all in sync, you'll have to say do 1-2, then 2-3, then 3-4.

Or, you could go to J.C. Whitney and get one of the 4-gauge sync tools. But this costs almost nothing, and there's no guarantee that tool (made in China) will be accurate from gauge to gauge.
He'll probably have to go through them all two or three times. There are worse ways to spend a weekend morning.
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