why so much hate for K&n?? seems to stop dust pretty well according to this guy I think the trick is to clean and oil it correctly
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I made my own S-pipe. 3” to 3.25” to the factory lid. I have a wix filter minder and I think my air is restricted because at 16psi it already maxes out.
Turbo is a TD06SL2-18G
Factory airbox and safari snorkel
Brand new wix filter in it
I may try a Afe filter and see if things improve.
Only had the turbo on for 2 days already sent it in for RMA.
I’m starting to question of the air intake restriction is causing turbo over speed
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why so much hate for K&n?? seems to stop dust pretty well according to this guy I think the trick is to clean and oil it correctly
why so much hate for K&n?? seems to stop dust pretty well according to this guy I think the trick is to clean and oil it correctly
Really dumb question here, and I apologize if it's been covered in this mega thread already.@IanB Did you ever install that gauge into the 1FZ lid and take measurements? My turbo whistles at 18+ PSI and I think it's restricted by my airbox so I'm looking at how to move forward here without spending more on an airbox upgrade than I did my turbo, because that's just silly.
They all whistle at least some.Really dumb question here, and I apologize if it's been covered in this mega thread already.
My understanding was that every turbo whistles under boost. Every diesel I have owned, even those with a stock turbo, has whistled.
Is whistling actually a sign of restricted intake?
please explain why they are silly.Round filters in a square box are silly. Get an airbox that uses a panel filter.
From a flow/turbulence perspective I just can't see how they work effectively.please explain why they are silly.
turbulence? look and design too complicated to change out?
what I think is silly is people who put the largest cone filter on top of their snorkelers with a sock prefilter. it looks dumb but I'm sure it functions fine.
I've had various causes of whistle that seemed "grossly more than normally expected". I don't have an intuitive feel for that as this is the only diesel I've ever owned, but when it's consistently annoying at a wide range of boost that seems off.Really dumb question here, and I apologize if it's been covered in this mega thread already.
My understanding was that every turbo whistles under boost. Every diesel I have owned, even those with a stock turbo, has whistled.
Is whistling actually a sign of restricted intake?
a turbo with a wine-like siren can be a broken bearing or the fins touching the housing worst case scenario a broken fin tooI've had various causes of whistle that seemed "grossly more than normally expected". I don't have an intuitive feel for that as this is the only diesel I've ever owned, but when it's consistently annoying at a wide range of boost that seems off.
First: Turbo inlet pipe had a giant hidden crack that wasn't obvious., turned out to go around about 75% of the entire pipe! Shocked I had any pressure at all! Replaced with a silicone pipe, MUCH less whistle, slight improvement in power/response.
Second: Intake gasket blew a chunk out and created a SUPER annoying whistle at basically all pressures--not the "screaming cat" analogy from mudgudgeon but I could see that being totally possible. In hindsight upgrading the intake gaskets should be a required part of a turbo upgrade.
It still whistles but at higher boost and not nearly as bad as the video I posted last year. I feel like it should be more of a powerful whine than a proper whistle--again, for no experienced reason--and I think it might be related to intake restriction. I have a restriction gauge but haven't installed it yet, I need to start with a new turbo controller because suddenly my old one seems to not work/have a max PSI which is scary....
The overboost explanation video posted by Veiloctane is good motivation to match the intake to the turbo capabilities!!! Just seems like it shouldn't cost $2k......
I say leave the filter housing as it is. I'd rather be sure the intake air is as clean as possible rather than trying to gain the very small percentage in performance by removing it.Update on the Donaldson airbox.
I’ve made the piping from airbox to turbo bigger. 89mm all the way to the turbo intake with a flexible hose and a reducer elbow on the turbo intake.
Since fitting this airbox I noticed a raise in boost pressure of 2 psi so I turned boost back down a bit.
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I noticed there is a restriction in this airbox intake. I think it’s a pre-cleaber supposed to make the sucked air swirl around the filter element and trow dust and dirt particles outwards?
I cleaned the filter element today and I found most dust in the filter was all the way in the back of the filter, opposite of where the intake is, so I think it makes sense.
What do you guys think? Leave the restriction in or cut it out?
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