Need help tuning Weber 48ida 6 port s5 13b
#1
Full Member
Thread Starter
Need help tuning Weber 48ida 6 port s5 13b
I have a 13b 6 port with a rb header and a Weber 48 Ida. My timing is set @ 13 degrees. I am showing a 10.0 at idle on my wideband no matter what I do to the carb. Right now I have the set up below.
205 jet
200 main jet
F11 emulsion tube
.300 needle valve
.50 idle jet
205 jet
200 main jet
F11 emulsion tube
.300 needle valve
.50 idle jet
#3
Senior Member
I never posted results, but I can get 16.8 MPG driving it slow (that means only redlining it twice a day) and I made 190rwhp with this setup. I average about 15.5 MPG. Daily driver sees about 300 miles a week.
48IDA
3rd .8mm progression hole added
43mm chokes
65f10 idle
120 idle holder
205 main
140 a/c
f-3 e-tube. Car drives better than it ever has before.
48IDA
3rd .8mm progression hole added
43mm chokes
65f10 idle
120 idle holder
205 main
140 a/c
f-3 e-tube. Car drives better than it ever has before.
#4
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Thread Starter
I suspected the motor was flooded and wired up a fuel pump cut off. I cut it on and let it idle for 10 minutes and the wideband showed a 10.5 at idle. I made further adjustments with the idle mixture screw and got it to 11.5-12.3 idle at 1000 rpms. But it still sounds alittle rough. The idle mixture screws are a full turn out. I will look into the setup that was posted above.
#5
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I suspected the motor was flooded and wired up a fuel pump cut off. I cut it on and let it idle for 10 minutes and the wideband showed a 10.5 at idle. I made further adjustments with the idle mixture screw and got it to 11.5-12.3 idle at 1000 rpms. But it still sounds alittle rough. The idle mixture screws are a full turn out. I will look into the setup that was posted above.
you also might want to look down the carb while its running, if its dripping from the boosters at idle, the float is too high. its ok for a race car, but in a street car it'll be too rich
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#8
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I just cut the car on let it idle. Weird question, but the booster is located in the center of the venture. The little circle tube in the middle upper area of the throttle plates?
#9
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Sorry for the late reply I have been hunting down and fixing leaks. Now the car oil temps are going high. I have a 19 row oil cooler that i am about to put on the car with a electric fan.
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1st Generation Specific (1979-1985)
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04-26-03 02:06 PM