Got my ebay walbro today, kit came with everything, the part number is a GSS-341
i have a 1991 turbo (s5)

now i hear the gss-341 is for s4 and theres a gss-342 for s5's?

someone tell me before i go putting the wrong damn pump in... the auction said for 1989-1995 rx7's

:/

 

Er.... Go put the 'damn pump' in the car and you'll see why it will work. The wires are ring tongue right? Pretty much they just screw down on the fuel pump cradle. I just installed a Walbro on my s4 shell a few days ago.

 

i found out from someone here that Walbro pumps are generic in tank pumps. the only thing that varies from model to model is the connector, and the mounting hardware...my 255lph pump is to a prelude...WORKS GREAT!

 

10psi... do i need bigger injectors? my plan is 10 to 12psi only...

i have an fcd and obviously the walbro 255lph

 

u talking about boost? or fuel pressure?

 

I have also ordered a Walbro pump from Ebay.
Hope I get it soon.

 

boost

 

to run 10-12 PSI you will need an FCD. probably best to go with RTek 1.7. It comes with an FCD and retards your timing by one degree after 9PSI. this requires that you get 720cc secondaries, and obviously you will need your fuel pump in there...

also might be a good idea to get an FMIC as the TMIC is being pushed to its limit by that time...DONT WANT HEATSOAK!

-Matt

 

i have a knight sport fcd... will i need larger primaries for 10-12psi? i dont plan on ever pushing more than that at all

 

it will run...but might blow up...be safe...get rtek and injectors...