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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. :P

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

  • 3 weeks later...

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

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 by Marko R1

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

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.

  • Like 1

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?

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.

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