7d82adz

hey everyone, so im new to the world of webers, but i did fall in love with them instantly..

however i have alot to learn.

I know that these are beautifully designed as a universal carb setup with millions of options for tuning and such.. but i need help with the basics.

I got a 71 240z in storage waiting for my return, but it needs a tuneup..

Its got a set of triple weber 40's, not sure of intake maker but the intake itself was tapped into each runner ontop to link 1 line all the way across for the brake booster..

(the motor is a l28 with headers and 5speed and r200, but dont think its very important to mention as i just want to learn how to play with the webers)

I need to sync them together properly.. id like to measure vacuum readings from the intake manifold.. was thinking through the already drilled and tapped intake runners. like stick a hose and seal it for vacuum readings on gauges..

On amazon they have carb syncros with gauges, some pairs of 2 others 4.. I was thinking buy 3 pairs of 2 so i have 6 gauges altogether on a custom board or something.. and have everything hooked up to the intake runners to measure vacuum as i sync everything while the car is warm and running.

Is this a overcomplicated way of tuning these? ive been searching around abit and havent had much luck finding resources of how to perfectly tune this type of setup.

any input or advice on this is much much appreciated.. thankyou.

7d82adz

another thing ive heard of is removing one of the screws on the carb itself to then attach a brass threaded tube about 1 to 2 inches long for a hose to attach to link up to syncro gauges.. the screw should be on the outlet side of the carb not near the inlet side.

would love to find out how to aquire the right tools to tune up a triple set of dcoe webers with vacuum gauges..

anyone know where i could buy what i need for doing this?

ricksilvia

Why are you trying to tune them this way?

7d82adz

I have not seen or heard of any other ways.. no one in my area knows a thing about these types of carbs. I barely know anything myself and im asking out to whoever knows a thing or two about basic tuning.
Any advice or directions would be greatly appreciated! thankyou