About a year ago i installed a weber 30 250DGF from fiat panda 30 in my tuned engine. Now while on temperatures up to 28-30 Celsius the engine operate fine i have noticed that during hot summer days when i let the engine at idle for a few seconds for example at stop light then it is suffering to gain rpm. I have to slowly press and release throttle and little by little engine starts to rev up otherwise it dies. Removed air filter duct and let the carb breathe free and it improved a lot. I believe that when stopped at idle hot air is getting to the intake because car is not moving and engine suffer to breathe. I removed the standard 650cc intake duct and installed a bigger 60mm duct and bigger air filter and there is some improvement but not like when the duct is completely removed. I am sure that it has to do with jetting but have no idea about what to replace. The jet sizes my carb has are standard as per @Bleeding Knuckles list taken from another post of mine.
Thomas
Jet sizes where like this..
Panda 30 standard in (brackets.)
Air Correction Primary - 1.90 - (1.90)
Air Correction Secondary - 2.00 - (2.00)
Primary main Jet - 1.12 - (1.10)
Secondary main Jet - 1.00 - (1.00)
Thomas
Jet sizes where like this..
Panda 30 standard in (brackets.)
Air Correction Primary - 1.90 - (1.90)
Air Correction Secondary - 2.00 - (2.00)
Primary main Jet - 1.12 - (1.10)
Secondary main Jet - 1.00 - (1.00)