Fuel Pumps

[Beer Baron]

Hey Guys

Im confused about fuel pumps. I know i could just get a 044 and be done with it, but i dont like the issues that might occur if its installed wrong (last quarter tank pickup) and also the noise that it might make. Also, since ill be mounting it in tank, it means that the factory bracket will be mangled and itll be harder to put back to stock if i ever need.

Im not really considering 2nd gtr items cause of the hassles that might come with it (not much warranty, old etc)

I want to get a fuel pump from nismo or tomei. Price wise theyre similar. $340 - $360 for rice brand vs $ 310-$330 for bosch. Take into account that you dont have to modify anything for the jap brands, the jap brands will probably be cheaper if you take it to a mechanic to get installed.

Nismo's specs are

246 liters per hour at 2.94bar

Tomei's specs are

248 litres per hour at 3 bar

Bosch 044 specs are

200 litres per hour at 5 bar

My power target is around 250-270rwkw (probably with a gt-rs or similar)

So for that i need 6 X 550cc injectors (just to be on the safe side)

So that comes to 3.3L/min or 198L/hour (max the injectors will flow)

Assuming fuel pressure is 2.5bar and a gt-rs is run at 19psi, the total psi i need is 55.75psi or 3.8 bar

Out of the 3 above, only the bosch meets my requirements as it has the flow capicity as well as the pressure capacity.

So i guess what im asking is:

Is it still ok to get the tomei or nismo fuel pumps?

I mean, itbmils has 300kw with the tomei one (the gtr one i assume which is 276L/h@3bar)

Initially i thought it was just the flow i needed to look at, but with the psi rating as well, im confused.

Are my calculations totally way off (if i run 19psi of boost, do i need an extra 19psi of fuel pressure?)

Anyone have any thoughts?

<{POST_SNAPBACK}>

my advice is get the nismo pump. it will go straight in. even plugs straight in (ie zero re-wiring needed), and has the sock already on it, come with a new tank seal too. and it will comfortably support the injectors you want to run, at the pressure you want to run. worth the extra money for piece of mind imo.