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-   S4 / RS4 (B5 Platform) Discussion (https://www.audiworld.com/forums/s4-rs4-b5-platform-discussion-6/)
-   -   Gt cars are you running stock fuel supply lines and fuel rail? (https://www.audiworld.com/forums/s4-rs4-b5-platform-discussion-6/gt-cars-you-running-stock-fuel-supply-lines-fuel-rail-1637019/)

Detroit 01-22-2009 10:41 PM

Gt cars are you running stock fuel supply lines and fuel rail?

SIMPPLY @ WMS 01-22-2009 10:48 PM

all stock on my laser S4. Cust on my black S4.

Detroit 01-22-2009 10:53 PM

Is it recommended or does stock hold up fine? Our cars are pretty impressive stock.
 
btw mike do you have an AIM name? I have some more details about dark alley.

Mark@AutoSpeed 01-23-2009 06:33 AM

Depends on level of power, anything over 650whp will require some love...
 
Our car uses (2) 044 Pumps in parallel running 6bar FPR to fuel for 37psig ;p

Essentially each pump feeds one bank only, with a failsafe crossover. New Alum lines from Tank to front feeds, with check valves...

Keep in mind we use custom RC injectors flow matched to over 800cc @ 3bar.

If this wasnt needed we wouldnt be doing it, anyone telling you they are making big power without these kinds of upgrades is either lying or defying physics. Remember HP is directly related to the AFR, so even at 12:1 for a given power level of say 700whp or more is a lot of fuel. The 2.7L is good just not magical...

Bing
<img src="http://pictureposter.audiworld.com/93546/done.jpg">


Bam
<img src="http://pictureposter.audiworld.com/93546/funtime.jpg">

Boom
<img src="http://pictureposter.audiworld.com/93546/gotfuel.jpg">

Black01S4WI 01-23-2009 07:06 AM

Very nice. How are the fuel lines routed under the car? Any pictures?

Mark@AutoSpeed 01-23-2009 08:15 AM

Factory routing reusing same clips to underbody. Then at the stock filter location we have...
 
(2) AN filters there.

SIMPPLY @ WMS 01-23-2009 09:39 AM

The " dark Alley " has been on my mind. I really do want to start it ...
 
Its : SIMPPLYs

audikillsbmw 01-23-2009 10:29 AM

That's sweet.

Detroit 01-23-2009 03:32 PM

lol!


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