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sumoboi7
02-03-2008, 03:55 PM
hi i was wondering if a ka sohc fuel pump feeding a redtop sr with stock injectors is doing any harm to the motor. should i upgrade to a 255lph pump or is it ok?
projekt_s13
02-03-2008, 03:57 PM
your kinda ok with the stock one, just dont raise the boost without a walbro.
bo2o
02-03-2008, 04:01 PM
unless you pump is old as hell and starting to give you problems ne ways. then change it out.
sumoboi7
02-03-2008, 04:11 PM
cool.. ya i was plannin on running stock boost for now.. my fren told me of a guy who runs a stock ecu n turbo but jus upgraded the housing or turbine. i forgot what he said but the guys running 275 hp n smokin sti's n evos. any of u heard of this... if i can i wanna do that..
burnsauto
02-03-2008, 04:14 PM
yeah i've always heard anything above stock boost (or 10psi with some people..) change out the pump for a higher flow unit.
sumoboi7
02-03-2008, 09:35 PM
cool thanks im prolly gonna change it when i get more $$
sr20boostn20
02-03-2008, 09:41 PM
you can get by for now for sure 10psi boost or less.

but I would suggest the first new part you buy is a fuel pump
slid-kid
02-04-2008, 01:57 AM
Do it as soon as you have the money. Better sooner than later.
sd8ted
02-04-2008, 02:35 AM
most people upgrade it when doing a sr swap, so when ya get the extra cash id pick one up, better to be safe than sorry :)
sumoboi7
02-07-2008, 02:14 PM
cool thanks alot guys
emersonLP
02-07-2008, 03:03 PM
z32 TT fuel pump is supposedly more reliable than a walboro. I went with the z32 TT
sumoboi7
02-07-2008, 03:34 PM
it runs great? wuts the lph of that one. do i have to do any mods to make it work?
driftn_silvia
02-07-2008, 03:52 PM
recomend you upgrade the fuel pump...dont stick with the stock one...if planning on raising boost...and i dotn know if its happen to anyone...but i was running a stock sohc pump, ran out of gas and the pump got stuck


so UPGRADE. LOL.
Sir
02-07-2008, 04:25 PM
u can afford 2K engine, but can't afford $85 fuel pump????
sumoboi7
02-09-2008, 05:32 PM
well i used up a good chunk on sr and when i was gonna do sum upgrades shit started goin wrong. u kno old cars start to break down. especially when u r runnin stock suspension. i would have dpne suspension first but my stock motor was about to die.
fliprayzin240sx
02-10-2008, 11:43 AM
z32 TT fuel pump is supposedly more reliable than a walboro. I went with the z32 TT

New? SURE!!! Used? You'd really trust an old pump? Its like every other ass clown here who thinks R32 GTR pumps are gods send to Silvias. Really? You wanna use a potentially 17-18 yr old pump? :tweak:

Get a walbro, how often do you hear them fail?
bribot
02-10-2008, 11:53 AM
ok noob question here but i bought an s13 with an sr in it already. everything was completely stock except for the swap. not even a boost gauge. im starting to wonder if i even have a better fuel pump. so if take the fuel pump out will it say walbro on it somewhere? or how can i tell its been unpgraded?
rhs13
02-10-2008, 12:08 PM
im sorry, but whoever did the conversion shouldve put a better fuel pump in there, even with running stock boost, etc. ive seen too many people lean out within a few days of the swap.
projekt_s13
02-10-2008, 01:26 PM
ok noob question here but i bought an s13 with an sr in it already. everything was completely stock except for the swap. not even a boost gauge. im starting to wonder if i even have a better fuel pump. so if take the fuel pump out will it say walbro on it somewhere? or how can i tell its been unpgraded?

Yea it will say walbro on it.