i recently did a carb swap everything is on point ..... occasionally lag when rev up in neutral then second rev all cleared up.....
38 38 webber
Posted 23 April 2017 - 09:40 AM
Check your accelerator pump discharge nozzle to see if it squirts
Posted 23 April 2017 - 10:25 AM
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Posted 25 April 2017 - 04:56 AM
I can't give any advise on why this might be, but on my l20b, with no engine work other than bored .30 over and ele dizzy, it ran fine. really woke it up. and had zero lag. this was using the smaller port intake, an emissions head, and a cast exhaust manifold. I went from a 32/36 and was really shocked at the improvement, if you are getting lag, i'd be checking some things, vac leaks maybe?
Posted 25 April 2017 - 08:02 AM
The 38/38 is a small V8 or 6 cylinder carb. Bogging is to be expected on smaller displacement engines as not enough air is being drawn through the venturies to form a vacuum to draw fuel in and it 'falls on it's face'. You can try a larger squirt from the accelerator pump to get you through this lean area or learn how to 'drive' it. Try 1/3 on take off and add to full throttle in stages as the revs build. Experience will dictate how fast you can add full throttle.
Posted 28 April 2017 - 03:44 PM
I have a 38 38 on my lz2.2. I installed a wide band and found that it was going lean at 1/4 throttle. changed the mains.. all is good