Carb to MPFI Fuel Lines

[910GL]

Swapping from carb'd EA82 to EJ. I've read that I need to upgrade the fuel lines in the process. Do I need to replace ALL of the fuel lines on the car or just the supply lines? (Are the return/evap lines ok to leave?)

Thanks
Brett

[el_freddo]

All high pressure lines need to be replaced with EFI grade fuel line. If you don’t do this, you’ll burst a fuel line and have all sorts of issues that could include a fiery end. 

Cheers 

Bennie

[910GL]

Bennie,

Thanks for the reply. I replaced every section of supply line with EFI grade: all the way from the tank to the intake manifold (think it was like 5 or 6 different sections). I was back there anyway swapping the fuel pump.

I also replaced the return line and evap lines in the engine bay with EFI grade (just the sections from intake to firewall). There are several sections of return and evap lines back at the rear of the car that I haven't swapped. Think these are good? They shouldn't be under pressure right? My thought is to leave 'em.

Thanks: Brett

Edited May 25, 2020 by 910GL

[el_freddo]

The rear return line low pressure hoses *should* be ok. Good time to swap them anyway if they’re factory units (most likely are). 

Cheers 

Bennie