Weber IDA 48 running correctly ????????

[priobe]

Hello All,

I would like to find out how many of you guys have webers that are running correctly.
What I mean by this is that your plugs are tanish brown, good idle with a mixture of 13.5 - 15.5, good transition, good top end power.

I am beginning to feel that I am asking for too much from these webers. I have read mojority of the books and bought tons of jets.

I have tried 37 chokes 40 chokes, 42 chokes. I have read Eljaro posting but it seems that even the modified F7 tube which is similar is not a F14 tube.

I would like to just find out if I am in the same situation as everyone else with these Webers.

[68gt500]

Nope, mine are running great - beyond any and all expectations.

Pretty much followed Eljaros suggestions, installed an Innovate WBo2 Gauge and ended up with my own Tune.

My setup:68 Shelby, 428, TKO 5Speed, 3.00 gears, 40mm Venturis, 3rd progression hole.

[priobe]

68gt500,

What are you using for a e-tube?

[68gt500]

Originally Posted by priobe

68gt500,

What are you using for a e-tube?

At the moment I am getting pretty good results with the F7s.

I did try out the F16s (I could not get any F14s) in the very beginning, with the 40mm venturis before doing the 3rd transition mod but didn´t get good results, so I went back to the F7s. But as I said, it was the beginning of the learning curve - I should give the F16s another try in the spring.

My problems - and the solution I found were:

Driveability problems (huge flat spots): were eliminated with the 3rd progression hole.

Deceleration popping: Eliminated by synchronising the carbs and opening the Idle screws to 3/4 to 1 turn.

Mileage: Improved most by reducing the idle jet (65) and idle holder (110)

Top End: Vastly improved by the 40mm venturis and leaning the main

[priobe]

I will increase my idle jet to 65 and adjust my holders from 135 to 120 then to 110 and soforth.

I have determined that 135 holder is too lean and the 95 holder is too rich.
I will monitor this from idle to 3000.
Then I will begin to use the F11 E tube with a 170 main and 210 corrector.

I will monitor this range from 3000 - 6000

Anything running leaning from 3000 - 4000 I will increase the main jet
Anything running runnning lean from 4000 -up I will decrease the air corrector

I have read that E-Tubes should not be changed unless tuning on a Dyno. It stated that there is very little change when changing the tubes.

If I need more fuel in the midrange I will then move from a F11 Tube to a F16.

If more fuel is needed for progression /normal driving then I will then use a F7 tube.

It seems like the F7 tube is the richest of all in ralation to the F11 and F16.

Does this sound correct?