belt length for 65mm pulley

[g40chris]

what length do i need for my 65mm pulley?

just went to fit it and the 1015mm belts seem to be to long

[PeteG40]

stock vw belts fit a 65s i used in the past

[g40chris]

i will go check again now

cheers

[g40chris]

DOH!

all sorted now, just me being a dumb arse

wasnt pulling the charger enough

[jonboy]

got any tips, cos i cant get mine tight either using std belts.  there appears to be a gap in the adjustment slot to suggest it will move more, but the charger seems to be getting stuck against something, possibly the exhaust manifold.  at  the moment the belts will start to scream by 5k

[PeteG40]

it might be the intercooler pipe stopping it moving!