mpk490p

Hi all i'm runing a 51IDA on a 13b 4port (Street ported motor) i have a new 4110 mallory pump and 4309 reg to install but need to match my return line to my feed to get it to run at the right pressure. i've heard the GSL-SE tanks have a larger (10mm/3/8") feed? and return?
A) can someone confirm
B) does anyone have a inlet for sale (Have a GSL-SE tank already)

thanks

trochoid

iTrader: (6)

A) Half true, return line is slightly smaller than supply line, approximately 5/16".

Not sure what you mean by inlet, describe it.

PercentSevenC

I'm running an MSD EFI pump with a 4309 reg set at 4.25 PSI base pressure, stock 5/16" send line, and a 5/16" return line that reduces to 1/4" to go into the stock return line on the 12A tank. Fuel pressure is stable.

mpk490p

sorry ment pick up

mpk490p

thanks i was going to fit the larger lines to the tank and see how it went i do have a spare tank inlet so i may just get some 10mm lines put into that if needed

mpk490p

just got some 3/8 pipe, will replace the feed and return unto the standard tank pick up (GSL) and see how it goes

mpk490p

ok so i have made a new pick up and fitted new lines for the spec on the 4110 10mm / 3/8" I'm still seeing some issues with variable pressure, I'm measuring pressure at the regulator now the lines do go larger after the regulator to the carb -8 1/2" would i need to increase the pressure to compensate this or would it be easier to go -6 to match?