2009
08.02

BOSCH 044 Fuel Pumps, now available

Category: Customer Cars, General Shop, New Products and Services / Tag: , , , , , , , , ,  / Add Comment

We just changed NachO’s setup on 7/24/2009, We have sold and installed about 10 of these fuel pumps already.

For NachO’s 2004 SRT-4 we were using a modified walbro 255 pushing into the bosch 044 fuel pump. Kicking the Bosh 044 pump on at 5psi via a low side driver from the AEM EMS. Exactly like a hobbs switch would work. This was wired to a waterproof fusible link and 40 amp relay using mil-spec wiring for total reliability.

We have since changed to 2 044’s, one in the tank and one inline. And both are running full time now, as pushing thru one 044 is too much of a restriction for the fuel pressure we are running; 70psi base pressure.

Bosh 044 installed inline on a SRT-4

Bosh 044 installed intank on a SRT-4

The walbro was ditched for this reason too as the system is running a total of 100psi of fuel pressure during the end of 3rd and all of 4th gear (~30psi of boost).

Walboro 255 on the Left and the Bosh 044 on the right. Notice a difference?

Our Friends over at Jays Racing had ths to say about the Bosh 044:

Capable of providing 300 LPH free flow and 200 LPH at 5 bar (or 72.5 psi) for up to 685 BHP. In comparison, the Walbro GSS341 255 “high pressure” fuel pump can support 390 BHP Note: Values calculated at 12V, 3 bar (43.5 psi) base fuel pressure, 2 bar (29 psi) boost pressure, 1:1 fuel pressure regulator ratio.

Jaysracing Bosh 044 Flow chart

We can install the Bosh 044 in just about any other type of car we work on, Turbo Hondas, Evo’s, STi’s, 3000GT’s. This fuel pump is as universal as they come.

Feel free to check out pics of the 044 in tank on the 2004 SRT-4 and in-line also. Click Here for more pics

-Chad

2 comments so far

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  1. Supporting Fuel for 500-600 hp???? - SRT Forums - SRT4, SRT6, SRT8, SRT10 & Dodge Forum said: 2009.09.12 10:04

    [...] and check out some of the set-up I have. Tons of pictures and even a write up: HERE! I currently run a 044 in tank: see pics and an inline 044. I'm working on a surge tank as I will [...]

  2. Interesting tests on fuel pumps. - SRT Forums - SRT4, SRT6, SRT8, SRT10 & Dodge Forum said: 2009.12.25 12:02

    [...] Great discussion here, I enjoyed the re-read. We did a write up with some data and pics: Fuel Pump information NachO __________________ Daily Driver -2009 SWP WRX STi + Gold BBS's Road Course Car. 2004 [...]

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