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Forced Induction Forum Sponsored by Active Autowerke
Discuss supercharging, turbocharging and even nitrous and water injection here.
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Old 05-07-2012, 10:05 AM   #41
NickG
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After that i bought a e39 fuel-filter, which has a very nice addon against the e46-fuel-filter: a changeable fuel-pressure-regulator. With a 4 Bar (58PSI) Regulartor, instead of 3.5 Bar (50PSI), the engine gets more fuel.
You're wasting your time doing this. The increased fuel pressure will cause the mixture to be richer than it should be. The ECU will see this richer mixture during part throttle (via the O2 sensors) and lean it back out over time with the lambda adaption. The end result will be the EXACT same mixture as running the PROPER 3.5bar regulator.
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Old 05-07-2012, 03:01 PM   #42
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... It works, becouse the stock injectors are not able deliver enough fuel by 3.5 Bar. Running Engine after 5500 RPM, the mixture getting lean, opened the fuel injectors @ 95% PWR by custom tune, but with full time opened, not enough fuel available for Lambda 0,87 ~ 0,88.

With the 4,0 Bar Pressure Regulator, the fuel pressure is higher, and the injectors are delivering more fuel into the cylinder. With the custom tune and a 90% PWR, Lambda 0,83 is able - we only needed 0,87.

Under partitial load, the mapping is running a little bit rich, but lamdba-adaptions are ~ -1,38 on 1-3 and -0,83 on 4-6. Perfect.

Getting ~ 320 HP and a failure-entry in the gearbox "over 400NM"
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Old 05-29-2012, 04:12 AM   #43
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Old 07-22-2012, 08:36 AM   #44
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Modified the Air-Induction, DME-Software, EGS-Software, More Fuel Pressure and more Pressure

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Old 07-30-2012, 10:24 AM   #45
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Nissan 370Z ... Done
900RR Suzuki ... Done
165 mph Speed-Test ... Done

=)
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Old 01-09-2013, 02:42 PM   #46
Jim Murphy
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I did not see any cold range sparkplugs nor bigger injectors in the kit.

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Old 01-09-2013, 05:10 PM   #47
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Spark-Plugs are colder ones and Injectors are Stock, but with higher pressure.
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Old 01-10-2013, 12:18 AM   #48
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At what rpm do you start making boost? And at what rpm do you reach half your total boost? Looks like all the power is way up top.
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Old 01-10-2013, 12:20 AM   #49
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Looks like all the power is way up top.
it is....
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Old 01-10-2013, 04:54 PM   #50
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Hmm? Please explain to me, what you mean with "...looks like all the power is way up top" ?

Boost is rising constant, from 2000 rpm 0,1 bar; 3000 rpm 0,2 bar; 4000 rpm 0,3 bar, 4500 rpm 0,4 bar 5000 rpm 0,5 bar ...
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Old 01-10-2013, 08:54 PM   #51
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Hmm? Please explain to me, what you mean with "...looks like all the power is way up top" ?

Boost is rising constant, from 2000 rpm 0,1 bar; 3000 rpm 0,2 bar; 4000 rpm 0,3 bar, 4500 rpm 0,4 bar 5000 rpm 0,5 bar ...
Talking about Peak/Full BOOST.
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Old 01-10-2013, 09:40 PM   #52
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can you please confirm that your pressure regulator from the e39 is indeed a 4.0 BAR regulator. I couldn't find the 4.0 bar regulator on the bmw database. do you have the part number to either the reguator or the entire fuel filter?
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Old 01-11-2013, 04:13 AM   #53
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i can't confirm, becouse this information is not correct.

e39 530i fuel filter (with pressure regulator) is 3.5 Bar (like E46) - but the pressure regulator is "changable" becouse its secured by a splint. You can release the splint, remove the stock 3.5 bar pressure regulator and replace this one with a bigger one (4.0 bar or more...)

but be careful:

the stock fuel pump is only able to deliver enough fuel @ 4,0 bar. More pressure = less fuel, becouse the stock fuel-pump isn't able to produce so much boost on the fuel rail @ WOT!
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Old 01-11-2014, 09:49 AM   #54
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Hi Hageee, I'm also looking to install the G-Power SK Plus RS "Sporty Drive" (ASA T3-313 SC) on my stock 325ti and I'm doing some research.
After almost one year or so from your install, can I ask you how well was your experience with it? Were you satisfied? What about performance, quality, issues, service support? Is it too noisy? any other important thing you can share?

Thanks in advance!
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Old 01-12-2014, 11:05 AM   #55
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hello Daniel,

Phil sold the car a few month back and currently heīs enjoying a Alpina B5S with more then enough hp.

i donīt know if heīs still watching this forum.
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Old 01-12-2014, 11:10 AM   #56
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hello Daniel,

Phil sold the car a few month back and currently heīs enjoying a Alpina B5S with more then enough hp.

i donīt know if heīs still watching this forum.
Thanks for the advise Daniel! So I'll pm Phil to see if I can contact him!
BR
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Old 01-13-2014, 05:48 AM   #57
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Hello,

i'm reading

I've sold my supercharged car at a friend. I've asked him two weeks ago, about any problems: Nothing. He isn't a technician or someone who "knows" what a supercharger-kit is - he is someone who's sitting in the car and only drives

With the kit, the Engine runs about 35.000 miles without any problems. he's only changing the oil with 10w60 shell helix racing, about 7500 - 10000 miles.
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