The Fuel Pump Thread

[The Mafia]

Happy to help you out with all of that Scotty, it's easy as.

Make sure you get the Honeywell 100psi sensor (They are about $200) for your fuel sensor. Need a good one for that.

[zebra]

At idle I wouldn't expect too much change, but I had the reg vac line pop off at the track a few times in the Evo, I did the whole track day at 32psi on United ethanol before realising it was running 16:1 at full noise, all because I forgot to cable tie it.

Talking with my tuner about why the engine didn't melt, he tells me the exhaust temps actually drop off after stoich on e85, unlike petrol that gets hotter. Perhaps there is less to worry about these days on ethanol anyway? I know it has saved my Stagea engine more times than I can count, like when the wastegate open hose split and it ran over 60psi.

I'm about to fit a Link Fury, should be able to run all these sensors and protection soon, including 4.9 wideband and flex, just struggling to find a tuner that wants to put the time into setting it up. One of those things you need to do yourself I guess.

Egts drop off on Gasoline leaner than stoich too

But performance engines det their faces off before you get to see that haha

very common on aero engines to run 50deg lean of peak on endurance runs

[SiR_RB]

Anyone used or herd about the new deatschwerks 350 inline external fuel pump (direct replacement for Bosch 044)

Flows 300lph at 70psi @ 13.8volts

Bosch 044 is around 250lph at that psi

Comes with 3 year warranty and is e85 compatible

http://www.deatschwerks.com/products/fuel-pumps/in-line-fuel-pumps/dw350il-universal-in-line-fuel-pump-detail

[sneakey pete]

Question is how loud is it?

[SiR_RB]

Aslong as they Arnt louder then an 044 win win

[Marko R1]

my setup in my r32 is the factory intank pump with undercar surge tank fitted with an 044 - 044 is now noisy from ethanol. i spoke to my dyno shop & he suggested to remove surge tank with 044 & replace my factory intank pump with a walbro 460ltr.

im on 420kw so it will be a safer & less complicated fuel system

i'll report back once its done & checked on the dyno...its comforting knowing that ppl here are achieving over 400kw with just a walbro 460ltr - what is the highest power output achieved with this single pump setup?

Edited March 6, 2016 by Marko R1

[r33cruiser]

Anyone used or herd about the new deatschwerks 350 inline external fuel pump (direct replacement for Bosch 044)

Flows 300lph at 70psi @ 13.8volts

Bosch 044 is around 250lph at that psi

Comes with 3 year warranty and is e85 compatible

http://www.deatschwerks.com/products/fuel-pumps/in-line-fuel-pumps/dw350il-universal-in-line-fuel-pump-detail

Keen to hear peoples thoughts on these as well

[mr skidz]

I know of a Rb26 stagea making 470rwkw with just one 460 in tank pump, admittedly it had a single precision turbo which didn't require as much boost as a set of twins would need to make same power.

I Think it was 25psi..

so pressure working the against the pump via the reg would have been minimal.

[Marko R1]

^ that is impressive!

[mr skidz]

I thought so too, aussie kw as well.

If you convert that to American kilowatts you can almost double it

Edited March 7, 2016 by mr skidz

[SiR_RB]

I had 450kw at 25psi boost with single walbro 460 pump tuned by dvs jez

Ran 140mph so power is there !

I'm going to try those 2 deatschwerks 350il pumps in afew weeks il let you know how I go

[Marko R1]

US inflate everything

140mph is fast...what ET did u crack?

[JH32]

I had 450kw at 25psi boost with single walbro 460 pump tuned by dvs jez

Ran 140mph so power is there !

I'm going to try those 2 deatschwerks 350il pumps in afew weeks il let you know how I go

Was that with your 6266? What turbo are you running now?

[SiR_RB]

6266 0.84 t4 divided

Best street turbo in my opinion on a built 2.6 (driven heaps of different combos)

Now I have a hks 2.8 and 7175 precision yet to be tuned

[Piggaz]

Why not a 6466 or 6870?

[sneakey pete]

So i'd been waiting for a second person I knew to install a fuelab pump. End result is same as first person. loud.

So i'm back at square one. Suppose i could just grab one of those generic under car surge tanks and a pair of the new DW pumps. Figured i might as well upgrade the fuel rail and lines aswell, so now i need to do my research for that in terms of running it to the front and what rail to get etc.

[Piggaz]

Pete, the dominator 1800 will supply what you need with ease and is is almost silent. Needs to be external though.

[sneakey pete]

Yeah, external is the aim regardless.

Did some research. Seem good in theory, not many people 'round these parts have used them yet though.

[SiR_RB]

I've been advised against Holley dominator pumps as they had a lot fail recently

That's straight from aftermarket industries and Jez

[burn4005]

My issue with the dominator 1800s is the clause:

"Pump gas compatible for intermittent or under 90 degree F (32 deg C) ambient temperature use."

32 degrees is pretty damn low.