06-05-2023, 01:19 PM | #1 |
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Is dorch stage 2 supposed to be this loud?
Installed yesterday and everything is functioning perfectly. No leaks or install issues. I'm just annoyed at how loud the high pressure fuel system is now. I can't tell if the clicking is the pump or injectors, is it possible the pump made the injectors much louder?
https://youtube.com/shorts/7w5x0z4C95s?feature=share |
06-05-2023, 02:11 PM | #2 | |
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06-05-2023, 02:23 PM | #3 | |
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Strangely from my ears it sounds like it's making the INJECTORS louder. When I put my ear to the pump itself it doesn't sound that loud. I bought some extra sound deadening foam I'll try to pack in. |
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06-05-2023, 04:30 PM | #5 |
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Mine doesn't sound like that at all. I always had the normal ticking of the injectors but there was zero additional noise after changing OEM to dorch stg2 pump. I don't think they got any louder, and no noise from the pump at all. Your clip sounds like some additional ticking noise is there.
No I don't have that noise at all and that would drive me crazy. I don't run the front or rear foam pieces or vanity cover either, you can hear my injectors loud and clear but it really sounds stock |
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06-05-2023, 04:55 PM | #6 | |
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06-06-2023, 02:46 AM | #8 |
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I had a similar sound which would speed up with throttle like yours on my previous B58 with Dorch stage 2. I’d only notice it when I’m not playing music but when I did hear it, it would be so annoying and come behind the steering wheel. Yours sounded worse than mine ever did though.
Spent a lot of time trying to figure out what it was. Never did figure out what it was but when I opened the hood the ticking was extremely loud. Even at the dyno, the guy even asked what that sound was. On my new engine I might hear it very rarely but it is very quiet if I do hear it at all. Be careful and keep an eye out. |
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06-06-2023, 10:02 AM | #9 |
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Yes all sound deadening is where it used to be
A couple other observations. When coasting and fuel pressure isn't demanded, sound completely goes away, so it obviously is the pump or injectors. I took some logs and they look completely normal, trying to get in contact with dorch. I've noticed this latest batch of dorch pumps are modified and have the low pressure feed in a different spot. Also my pump had oil on the plunger area when I received it so I wonder if it was used. |
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06-06-2023, 10:22 AM | #10 | |
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06-06-2023, 01:51 PM | #11 |
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Did you tighten it evenly and everything?
I didn't use a torque wrench on them. I don't recall any oil on the new unit. I got it from x-ph a while ago. Not cheap. Under wot at high RPMs you can hear it working hard, but it's a growling kind of noise, no clicking like that. Is the low pressure line hitting things maybe. |
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06-06-2023, 02:34 PM | #12 |
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Sounds normal to me but i recommend sending the clip directly to Dorch for their opinion
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06-06-2023, 07:09 PM | #13 | |
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06-06-2023, 07:51 PM | #14 |
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Shit. Dorch got back to me with this
"The newer revision is even more reliable and even higher flow, but potentially slightly louder at idle. We have one in our own car and it’s maybe marginally louder than the previous version (really hard to say for sure as there’s no good way to measure this exactly). It can be heard at idle and parking lot speeds, but nothing insane. Certainly if the radio is on even quietly or if you’re cruising down the road it definitely can’t be heard at all." Even if it is "normal" meaning it functions correctly I'm not ok with that level of noise. It's super annoying. Here's a other video from inside Last edited by morritse; 06-06-2023 at 08:19 PM.. |
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06-06-2023, 08:51 PM | #15 | |
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06-06-2023, 09:09 PM | #16 | |
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06-06-2023, 09:11 PM | #17 | |
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06-08-2023, 01:11 AM | #18 |
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Yes. But it’s definitely quieter on the new engine for some reason. Makes me think the issues on my old engine made the sound much worse. That or because I installed it myself. Your new video that does NOT sound normal though and way worse than mine on my previous engine.
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06-08-2023, 06:23 AM | #19 |
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Why not take a video under the hood, around and where the pump actually is?
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06-08-2023, 10:26 AM | #20 | |
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It's not that interesting Last edited by morritse; 06-08-2023 at 04:09 PM.. |
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06-09-2023, 07:18 AM | #21 | |
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I have a stage 2 and it sounds completely normal. Sounds like you didn't do your research on the pump before buying it and are having buyers remorse to me. That being said, I feel like they get quieter over time, or I'm just more used to it now. Even turning the radio on at low volumes drowns out the noise completely
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06-09-2023, 04:18 PM | #22 | |
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The sound is obviously from the pump and dorch themselves admitted that this revision is louder. |
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