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post #1 of (permalink) Old 04-06-2002, 08:32 PM
graydiger
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Help with webber upgrades?

I'm planning on pulling my webber off tomorrow and doing all the things I can think of to make it run offroad and on. I plan on spinning it around so if it floods or bogs out it's doing it downhill and I plan on porting the manafold to the same size as the carburator. Anything else carburator floats? Pressure regulator? If I install a pressure regulator than will I have to put on an electric fuel pump on?
Thanks for all your input
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post #2 of (permalink) Old 04-06-2002, 08:56 PM
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Re: Help with webber upgrades?

Set the float to 41 & 50mm . With the adapter plates on, cut out the entire area under the plates in the manifold . You will be removing an "X" . After that is cut out and blended in, remove the adapter plates, and flow the area from the top on into the plenum as smooth as possible. Don't worry about sanding it dead smooth, as it will help to atomize the fuel. If you don't have to worry about passing emissions, tap the two holes behind the egr valve with a 1/4" pipe tap, and cap the holes off with a pair of brass plugs. You can get a nice fuel pressure regulator from Napa , use one with 1/4" fittings. The output end of the stock fuel pump can be cut off to eliminate the restriction where the line output goes to 3/16", this helps a lot with high rpm flow probs. If you don't feel comfortable doing the carb mods and intake , I do set them up for people....
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post #3 of (permalink) Old 04-06-2002, 10:06 PM
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Re: Help with webber upgrades?

Sarge Your the man! I sure wish you lived closer I would have it and my shifter at your house right now cash in hand, Truth is I don't want to have it down that long (shipping it back and forth) thanks for your help i'll probably tackle it tommorow.
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post #4 of (permalink) Old 04-06-2002, 10:31 PM
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Re: Help with webber upgrades?

Sarge, One question on setting the float is that 41 to 50mm or are there two floats I havent opened up a webber before so don't know what to expect yet.
post #5 of (permalink) Old 04-06-2002, 10:48 PM
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Re: Help with webber upgrades?

Those measurements are for the upper(shutoff) limit , and the full drop limits . I'm going to try to get a couple of spare manifolds and shifter towers , that way I have cores to trade out for folks so their rigs aren't down waiting on shipping.
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post #6 of (permalink) Old 04-06-2002, 11:15 PM
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Re: Help with webber upgrades?

I've got a spare shifter and tower I can send to Sarge so your rig isn't down. Just send me yours when you get it installed.... Let me know....
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post #7 of (permalink) Old 04-06-2002, 11:24 PM
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Re: Help with webber upgrades?

OK maybe I missed it...what do you do to shifter towers Sarge? Is it the double bolt modification? I have a shirter tower we mignt be able to barter for.
post #8 of (permalink) Old 04-06-2002, 11:59 PM
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Re: Help with webber upgrades?

Hmmm Crowhorse your making this too easy, I'd better try to get my carburator fixed up first. I'm planning on going camping at an orv park memorial weekend and this year it's my turn to save our spot so I'll be going up the weekend before. One week of wheelin man I can't wait.
post #9 of (permalink) Old 04-07-2002, 12:49 PM
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Re: Help with webber upgrades?

Someone off the pirate board just supplied me with this link if anyones interested http://www.off-road.com/suzuki/samurai/webers.htm
post #10 of (permalink) Old 04-07-2002, 09:25 PM
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Re: Help with webber upgrades?

Let me give you guys a hint about filling in the open vent area on a Weber. Closing this off will keep the fuel from spilling into the throats, but will also block off the air jets which act as a flow brake for fuel in the mains at high rpm. In other words, it'll starve really bad above 4k . The vent area can be blocked off , but you also have to taper it to allow atmospheric air pressure to access the main air jets . Also , changing the flow of air to those jets at critical speed also changes the mixture at high rpm. Flow the intake properly, lower the float , and run a fuel regulator . Those things alone will allow it to run at angles most folks can't walk on...
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