S fuel line / battery cable thickness

[harrymini]

Would the twin tank 1275 S cars have had a 1/4 or 5/16" fuel line going from front to back of the car?

Also should i use 16mm or 25mm² cable also front to rear of the car?

Thanks

[TECH396]

The diameter of the (original) fuel line is 6.5mm (1/4") and the diameter of the battery cable is 9.3mm (3/8").

[GraemeC]

16mm2 will be fine for the battery cable unless you have a particularly high compression motor.
However I'd strongly recommend a modern fine strand cable, usually sold as welding cable (and possibly cheaper if bought as such!)

[harrymini]

Thanks, yep just ordered some welding cable GraemeC thanks.