21-11-2021, 11:31 PM
(This post was last modified: 21-11-2021, 11:35 PM by Bob Culver.)
Solex venturis are less obstructed than Zenith so can be smaller. And the innards of the 1" Su seem the same as the 1 1/8 which is far more common. With large carbs the throttle becomes very non progressive. SUs are supposed to acheive full lift before full power so that enrichment occurs, but users here report that on stock cars the 1"/1 1/8 dashpots do not fully lift. However as Seven owners are no longer concerned about economy matters little.
I would expect updraught to be smaller. Fuel needs be very atmised to survive the lift. Was the venturi more obstructed with the updraught carbs?. Or does the table recognise that the higher revving updraughts were generally sporty vehicles?
I would expect updraught to be smaller. Fuel needs be very atmised to survive the lift. Was the venturi more obstructed with the updraught carbs?. Or does the table recognise that the higher revving updraughts were generally sporty vehicles?