Pre 84 Trucks 1st gen pickups

weber vs aisin

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Old Nov 14, 2008 | 10:49 PM
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4x4YOTA's Avatar
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From: colorado
weber vs aisin

does a weber carb really offer more power and performance and better gas mileage than a stock aisin carb or is it just a different carb to run on our trucks. I have a stock carb on my 22R and I was thinking about throwing a weber on it but I want to know if it really makes a difference and is worth it?
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Old Nov 15, 2008 | 12:13 AM
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From: Puyallup WA.
*subscribes* i have been wondering the same thing
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Old Nov 15, 2008 | 02:18 AM
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From: Roseburg , OR
I noticed some differnace with mine with my weber over stock... now it uses more gas but has more power. guess you cant have one with out the other right.
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Old Nov 15, 2008 | 08:23 AM
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From: roy, washington
ive noticed an increase in power, but my webber looks at a steep incline and stalls out...
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Old Nov 15, 2008 | 03:28 PM
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From: Prince George, BC
I think it depends if your engine is worn out vs rebuilt with mods. My gas mileage dropped right off when i threw on my weber 38. I can get maybe 220km to 40liters but i dont drive it easy thats for sure. I needed to put an electric fuel pump as a booster since the mechanical pump could keep up past 5000rpm at 3psi.

The carb didnt come ready to just bolt in, i port-matched the carb adaptors to the intake so it was perfect. Then i had to spend days re-jetting this bugger but is flawless now and run great offroad. Have to make sure to have a fuel pressure regulator set max at 3psi or gas will blow by the needle.

But i would never go back to the stock carb now. In the cold this starts up everytime with 1 pump off the gas. Power and throttle response is great over the stocker.
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Old Nov 16, 2008 | 12:28 PM
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From: SW Washington
32/36 weber

i wouldn't know any of this. i have put my weber on and the throttle mech grinds on the adapt. plates. anybody have a way of getting rid of that? also the throttle cable seems a little too short. in order to hook it up the carb is opened about 1/4 to 1/3
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Old Nov 16, 2008 | 12:49 PM
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From: Prince George, BC
Originally Posted by Rokynutz
i wouldn't know any of this. i have put my weber on and the throttle mech grinds on the adapt. plates. anybody have a way of getting rid of that? also the throttle cable seems a little too short. in order to hook it up the carb is opened about 1/4 to 1/3
If you got a kit with carb it should have came with all the linkage spacers... theres 2 half inch spacers that go under the linkage setup to space it from the intake manifold. Well thats how the 38 is and dont over tighten any of the linkages
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