Does anyone know what the horse power limit of the factory fuel lines is, using a walbro 255 lph fuel pump? And what is the biggest injectors will the factory lines support? I just want to know where i'm going to have to up grade the lines and get a aeromotive pump. This will help me decide what size turbo i need to get either way.

Thanks

 

stock lines typically can make up to 500-600 hp on a b-series with 1000cc injectors with a in tank walbro...People wanting to make higher usually max out their fuel pumps then anything else...this is where you need to upgrade ur lines and fuel pump...i would go with the bosch fuel pump..talk to stan...

 

Thanks for the info. Some of my friends had made the 500 to 600 range, but i didnt know if anyone had made more. Or knew of a idea where the factory started to fail.