18-07-2023, 10:15 AM
The only time that my RL saloon has suffered from fuel vapourisation was on a Settle to Carlisle Run on the steep climb up to Dent Station. For some reason I was using normal Tesco unleaded at the time. The solution to the problem was to enrichen the mixture by two flats on the SU carb. I use the standard two blade fan and have a simple copper pipe from the scuttle tank to the carb, no heat baffle, insulation or anything, just a bit of common sense where the pipe runs. I don't use an in line filter either, with an SU there is little chance of a blocked jet. I think many fuel problems seem to be linked to the use of in-line filters.
My car is all black so in theory that should be the worst possible colour for absorbing the sun. I drove down to the Centenary Rally last July in 40C heat and suffered no fuel problems, despite the under-bonnet temperature being very high due to a radiator leak.
I always run on E5 petrol. I suspect that E10 may have a lower boiling point as it has a higher ethanol content?
My car is all black so in theory that should be the worst possible colour for absorbing the sun. I drove down to the Centenary Rally last July in 40C heat and suffered no fuel problems, despite the under-bonnet temperature being very high due to a radiator leak.
I always run on E5 petrol. I suspect that E10 may have a lower boiling point as it has a higher ethanol content?