R33 Gtst Fuel Pump

[DFAULT]

Hi, i'm just wondering when will the stock r33 gtst fuel pump max out?

will it be an ok upgrade for a r32 gtst around 200 rwkw

cheers

[chrissso]

It maxs out at anywhere from 170 up. A walbro or bosch 040 is a good replacment. Get one so you dont blow your engine.

Walbros are easier to fit but there are dodgy chinese copies getting around and flow 190l at 12 volts. up to 255l at 15v.

Bocsh will flow alot more, at higher presure, more reliable, but are trickier to fit, wont pick up fuel well on a filled below 3/4. More expensive.

You can get both pumps on the forum. as well as instructions on how to fit them in the tech area. - searchy.

I got a walbo - happy

[turbo power]

i want to run 180-190 rwkw with a power fc and various low key mods. i was told the stock 1 will be dangerous above 175 rwkw. so i think im getting a Tomei just to be safe. bosch is a pain to install, Tomei drop straight in.

[shif_tea]

Yeah i'm looking at the same sorta thing. Anyone know what the nismo pumps are like?? they're about 350 or so from nengun

[Just Boost It]

i heard the gtr ones arent a bad replacement.. also it would b wise to get the injectors upgraded too coz they'll max up pretty soon

[operationsideways]

The Nismo pumps are good. They bolt and plug straight in, zero hassles. I put mine in at home easily in about 30 mins and it has never faulted. I have 196rwkw.

[paulr33]

ive got a gtr33 pump in my, easy replacement and works fine. good for upto 300rwkw

[Busky2k]

Well judging by this guide who actually measured the flow of an R33 pump, it has more flow than one might think. (R33 pump is the same as the 300ZX)

Taken from this excellent article;

http://www.stealth316.com/2-fuelpumpguide.htm

As you can see from the graph, it flows an easy 220L per Hour at 60psi. Thats enough for 6x 550cc injectors. Whats funny is that Bosch quote their 044 pump as 200L per hour at 75psi which doesnt seem to be any better than the tested R33 pump.... (Although Bosch are quoting flow at 12V)

Edited February 9, 2006 by Busky2k