Fuel line diameter

[StescoG66]

Quick question folks. Amassing parts again for the eventual rebuilt of the Sprint, and seems sensible to replace the fuel lines. The crusty items that came off the car were 6 and 8mm which seems odd. Obviously one is a feed the other a return, but presumably both should be the same. Can anybody confirm

[markalfa83]

Hi Steven. How are you doing?

I'm not sure what size mine were underneath but I do remember the return pipe being smaller than the supply.

Hope this helps.

[Johnboy]

Yeah Agee , I think it's to do with keeping pressure up in the fuel system

[KevJTD]

yes, 8mm supply and 6mm return

helps to keep pressure/volume in the system i presume, as has been said

[StescoG66]

Thanks for that folks. Just thought it a bit strange but there is logic I suppose...........

[Alfasixnut]

Thanks for that folks. Just thought it a bit strange but there is logic I suppose...........

Also the engine will be using some of the petrol from the supply side so less will be going back to the tank.