I called in to an obscure place and found hose with working pressure rating of 50 psi , has stiff character with a 15mm OD which turns out too much for the genuine hose clamps that I prefer
Marked in white says " SOLUTIONS FRASER FUEL LINE TO SAE 30R6 - 8mm [5/16]"
Get along to another joint that sells " CODAN FUEL INJECTION HOSE SAE 30 R7 ID 7.5mm 100311" has an OD of about 13mm so fits in better with the clamps
link to Codan site on this hose explains a bit more and that the plastic verniers I borrowed in store did not maesure up as 14.5mm OD
http://www.aapsa.com.au/codan-fuel-injection-hose.html
Interestng that 5/16" is ~ 7.9mm, some call it 8mm hose and this stuff at R7 ratng is 7.5mm for a nice snug fit on the EA82s fuel lines
Start to google fuel hose ratings and find this handy tidbit
http://www.volksbolts.com/faq/fuelhose.htm
Looks like the bigger the R value the more recently developed the hose is for modern fuels and resistng decay due to what goes in the fuel tank.
These guys above sell R9 for aviation and suggest R6 and R7 is inferior- to R9
Also got some H511 AUTOMOTIVE FUEL HOSE SAE J 30 R6 WP 12 BAR ID 1/4"
They are nearly consistant with their ratings - I thought the thicker wall th better until found clamps not like it, the thinner wall has better rating
remember- you read it here , and don't blame me if you start to read fuel hose ratings from now on, gonna cause a stir in parts shops now checking the rating before you cut it
