SLK-Class (R170) 1998-2003: SLK 200, SLK 230K, SLK 320

SLK/R170: Fuel Pressure regulators

Old Apr 24, 2008 | 06:12 PM
  #1  
DynamicS's Avatar
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Fuel Pressure regulators

just looking for a part number for an adjustable fuel regulator, any companies make them for the slk320,

also wondering if I could install a regulator from the m113 engine for more fuel pressure?

next question is...any similarity between the 230 kompressor and 320 regulators

what about the M113 interchanging with m112?

any pressure data is much appreciated.
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Old Apr 24, 2008 | 07:37 PM
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Vadim @ FD's Avatar
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From: Southern California
S600TT, R350
Cars run from the factory very rich, adding fuel will not make any more power.
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Old Apr 24, 2008 | 07:44 PM
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the crossfires run lean under load, I want to bump up the fuel pressure to fix this.

I figure a higher pressure regulator is cheaper than spending $400 on slk320 injectors, I wonder if the crossfire's are using slk230 injectors? is this why we run so lean?

so what's the pressure options for fuel regulators on m112 and m113 engines?

Vath sells an adjustable reg. but it's too pricy right now.
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Old Apr 24, 2008 | 08:16 PM
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From: Southern California
S600TT, R350
the crossfires run lean under load, I want to bump up the fuel pressure to fix this.
Did you check A/F ratio?

C32s run low12s and high11s AFRs, I would imagine Crossfires SRT6s are not far off.
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Old Apr 24, 2008 | 09:09 PM
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The SRT6 is a different deal, it's the NA crossfire with 320 motor that runs lean, under high load in 6th gear for over 30 seconds, the cats start cooking, this is why the dealerships are always replacing the cats in the NA cars.

TVT replaced the stock 15.1 lbs. injectors with 17.2 lb injectors and an ecu tune. they managed to push out 38hp and 40ft/lbs.

I don't feel like pulling my stock injectors yet, and feel a cheap solution would be increasing fuel pressure with a regulator and add their ecu tune.


any info out there?
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Old Apr 25, 2008 | 05:13 PM
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http://www.crossfireforum.org/forum/index.php?

Some good tech on here

Bazzle
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Old Apr 25, 2008 | 05:42 PM
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haha, the crossfire community is lost with out MB world, guess I'm on my own here.
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Old Apr 25, 2008 | 06:42 PM
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Originally Posted by DynamicS
haha, the crossfire community is lost with out MB world, guess I'm on my own here.

Theres a lot of Tech on here too inc 320's

http://www.benzworld.org/forums/r170-slk-class/

Bazzle
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