NefMoto > Noob Zone > Noob Questions (Moderator: turboat) > 4bar FPR on a 3bar OEM fuel pump (1.8t)
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Author Topic: 4bar FPR on a 3bar OEM fuel pump (1.8t)  (Read 1141 times)
doktor
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« on: April 03, 2025, 03:12:40 PM »
I consider this a noob question even though I was not able to find much info.

Is the original fuel pump fine with a 4bar FPR? Some say no problem, others say it will fail soon. Is the OEM pump different between 1.8t engines or do all share the same type? Do the cars with an original 4bar FPR have a different pump?

Thanks
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dal
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« Reply #1 on: April 05, 2025, 05:21:30 AM »
OEM new or OEM with 20+ years of use?
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doktor
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« Reply #2 on: April 05, 2025, 06:23:13 AM »
Quote from: dal on April 05, 2025, 05:21:30 AM
OEM new or OEM with 20+ years of use?
The latter  Grin Though it has only 140k kms.
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IamwhoIam
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« Reply #3 on: April 05, 2025, 06:37:04 AM »
goooood luck!
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I have no logs because I have a boost gauge (makes things easier)
_nameless
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« Reply #4 on: April 05, 2025, 07:29:40 AM »
You are making it harder for the fuel pump to move fuel Making more fuel available down low and harder for fuel to pump at full throttle is stupid
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If you are broke or expecting free handouts DO NOT message me. I'll probably put you on blast if you do.
doktor
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« Reply #5 on: April 05, 2025, 09:44:06 AM »
Well I dont need that much fuel flow, this is for AGU injectors which are really small to make use of the k03s turbo (just around 210HP is fine). Dont want to go a bigger injector route due to price and mapping problems, also the injector choice for a large port 150HP manifold seems to be a bit limited...?
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mysman
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« Reply #6 on: April 07, 2025, 07:47:00 AM »
Been running GIAC 5-bar KO4 software on AEB stock fuel pump for like 15 years. Car is approaching 100k miles. No problems, but then I don't run hard very often. I did install an adjustable pressure regulator and gauge. I'm also running this with the stock KO3, the new BW KO4 is still sitting on my bench, lol.
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doktor
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« Reply #7 on: April 07, 2025, 10:52:37 AM »
Quote from: mysman on April 07, 2025, 07:47:00 AM
Been running GIAC 5-bar KO4 software on AEB stock fuel pump for like 15 years. Car is approaching 100k miles. No problems, but then I don't run hard very often. I did install an adjustable pressure regulator and gauge. I'm also running this with the stock KO3, the new BW KO4 is still sitting on my bench, lol.
Perfect, this is the reply I was looking for, thanks  Cool

you run k04 software with a k03?  Grin
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