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Fuel pressure regulator w208 clk55

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Old Aug 20, 2016 | 05:19 PM
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Fuel pressure regulator w208 clk55
Does anyone know where the fpr is on this car? Car wont rev because there is a fuel starving issue. Checked on star . Changed filter and saw a vac type pipe just dangling from it. Could that be it??
Last edited by Icedillon; Aug 20, 2016 at 05:20 PM. Reason: Grammer
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Old Aug 20, 2016 | 06:13 PM
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Yeah sure, Fuel pressure regulator attached to the fuel filter it self, with 3.8bar..

,,ZAYED,,
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Old Aug 20, 2016 | 08:23 PM
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Originally Posted by cm60k
Yeah sure, Fuel pressure regulator attached to the fuel filter it self, with 3.8bar..

,,ZAYED,,
Thanks Zayed. Is the vacuum type pipe dangling from the filter connected to nothing meant to be like that?
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Old Aug 20, 2016 | 08:25 PM
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Originally Posted by cm60k
Yeah sure, Fuel pressure regulator attached to the fuel filter it self, with 3.8bar..

,,ZAYED,,
Also so if I buy a new fuel filter, the regulator is incorporated inside it?
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Old Aug 20, 2016 | 08:41 PM
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Sure bro.,

Regulator conjunct with the filter,,

and the Regulator vacuum hose should to be connected to tank return pipe..!

,,ZAYED,,
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Old Aug 21, 2016 | 06:08 AM
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Originally Posted by cm60k
Sure bro.,

Regulator conjunct with the filter,,

and the Regulator vacuum hose should to be connected to tank return pipe..!

,,ZAYED,,
This is unusual as a setup, so it maintains 3.8 bar all the time even if wide open throttle?? Are we saying computer just increases injection time to fuel properly? No increase of fuel pressure during high demands??
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Old Aug 22, 2016 | 04:43 PM
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Correct but there are ways of increasing fuel pressure.

3.8 bar is adequate for all NA engines. if we do the math and use 14.7 psi per 1 bar it adds up to 55.86 psi. This is perfect for stock injectors.
If one were to upgrade to say 550 cc injectors then a 2010 VW GTI filter will fit right in bumping up the pressure. Pump volume is the next concern.
Get it?

Cheers Gator
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Old Aug 23, 2016 | 01:45 AM
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Good info. Gator,

i think 2010 GTI has 6.0 bar, isn't..?

,,ZAYED,,
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Old Aug 23, 2016 | 05:03 PM
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Gator I'm going going to need you help with my setup in the near future, bought a renntech supercharger for my car....

I'll PM you about it later.
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Old Aug 29, 2016 | 08:00 AM
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Originally Posted by GatorMB
Correct but there are ways of increasing fuel pressure.

3.8 bar is adequate for all NA engines. if we do the math and use 14.7 psi per 1 bar it adds up to 55.86 psi. This is perfect for stock injectors.
If one were to upgrade to say 550 cc injectors then a 2010 VW GTI filter will fit right in bumping up the pressure. Pump volume is the next concern.
Get it?

Cheers Gator
please look at the following video, seems like I may be getting 3.6-3.7ish bar at the rail? Watch while I try to rev as it just dies with power and wont rev past 3000. Fuel pump on way out??

https://youtu.be/TGqe3i8nITU
Last edited by Icedillon; Aug 29, 2016 at 08:00 AM. Reason: No link
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Old Aug 31, 2016 | 10:49 PM
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The 550 injectors... what is the application for them, or the manufacture/part number?
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Old Sep 4, 2016 | 06:01 PM
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http://www.ebay.com/itm/Bosch-52lb-5...mtr&rmvSB=true

I am migrating from NA to Supercharger. I am hoping to get the most out of the NA before the compression change and upgrade. The 550cc injector swap is on hold right now but coming soon. :-)
I picked up an E55 fuel rail with pressure damper which keeps from hammering the injectors at start up. Next concern is volume as the E55 runs dual on demand pumps.

I will likely fit an aftermarket fuel pressure regulator when the time comes to dial in desired pressure.

Gator
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