GT40s.com - View Single Post - 4-barrel Pullover...

Jac Mac · 02-12-08, 03:29 PM

One point I forgot to add last night, DCOE Webers have the same feature where the pump nozzle adds to the main circuit & flow fuel at WOT. The IDA does not due to internal design.
The biggest enemy any carb setup has in this day & age is the fuel industry itself, different blends play havoc with the Pump Diaphragms-Power Valves-Floats-Gaskets-O/Rings etc. Classic case is the TVR race car I play with, Demon 4bbl on Av Gas & has given zero problems for 5 years now in what could be described as a 'worst case' scenario. Races for 3 consecutive weekends then gets chucked in the corner for 10 month's. Has never developed a leak or flooded etc. Same type of carb on pump fuel in a road car that gets used perhaps every third or fourth weekend and its been in pieces several times.

02-12-08, 03:29 PM	#5 (permalink)
Jac Mac jac mac 10 tenths Join Date: Dec 2005 Location: Gore N.Z. Posts: 1,693 Rep Power: 21	Re: 4-barrel Pullover... One point I forgot to add last night, DCOE Webers have the same feature where the pump nozzle adds to the main circuit & flow fuel at WOT. The IDA does not due to internal design. The biggest enemy any carb setup has in this day & age is the fuel industry itself, different blends play havoc with the Pump Diaphragms-Power Valves-Floats-Gaskets-O/Rings etc. Classic case is the TVR race car I play with, Demon 4bbl on Av Gas & has given zero problems for 5 years now in what could be described as a 'worst case' scenario. Races for 3 consecutive weekends then gets chucked in the corner for 10 month's. Has never developed a leak or flooded etc. Same type of carb on pump fuel in a road car that gets used perhaps every third or fourth weekend and its been in pieces several times.