02-06-2020, 09:26 AM | #1 |
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Are oil catch cans worth installing?
I have a E60 535i with the N54 engine for about 10 years now and after 60K miles, I started to have sluggish accelerations and lower MPG's. I took it to my mechanic and he suggested getting a walnut blast procedure done to clean my valves. After he took off the manifold, he showed me the caked on carbon that built up over the years. After the cleaning, the car was like new again.
I'm sure carbon build up will occur for the S55 engine as well, but would installing a catch can really be effective? Has anyone here have it installed and how much gunk does it really catch. I'm sure the cost for a walnut blast is twice as much on the S55. |
02-06-2020, 09:44 AM | #2 |
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I've got one on my S55 motor. I had some gunk and water in it after 5K miles. (about 1.5 fingers)
I check it every 5K oil change. It doesn't affect anything so why not add it for extra TLC? I've run them on previous turbo motors with tunes and they helped even more. I'll be tuning mine in the future and you usually will have more blow by with the extra few lbs of boost at WOT.
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02-06-2020, 09:53 AM | #3 |
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I had one on my Supercharged BRZ and it helped especially on track days. I feel like for forced induction its just a nice thing to have even if theres no direct obvious benefit.
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02-06-2020, 11:04 AM | #4 |
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I put 2 on my WRX and they are quite effective. Before I put them on, my intercooler always had oil in it. Once I put a new intercooler on I added the catch cans and the new intercooler has never had oil in it. The PCV is the main culprit on those cars. I should probably look into this too...
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02-06-2020, 12:09 PM | #5 | |
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P.S. The new S58 has a revised PCV system and has a filter for blow by gasses to help prevent buildup. If you love geeking out on technical guides like I do you may want to give this a read. The PCV section is from pages 20-22, but the entire document is full of great info on the S58. Technical Training Guide S58 Engine |
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02-06-2020, 01:42 PM | #6 | |
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02-06-2020, 01:44 PM | #7 | |
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02-06-2020, 03:07 PM | #8 |
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Yes they are. If they catch things, that means other components didn't have to, or that your engine did not have to burn it and thus dilute the octane rating of the fuel.
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02-06-2020, 09:47 PM | #9 | |
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I have been searching for this and for one on the body , exploded view , panel construction ...etc Anyone know where one of those might be ? |
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02-06-2020, 09:50 PM | #10 |
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As for the catch can , I would say it’s better to have then not too , I wonder if this mod would void the warranty ? I would assume yes ...
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02-06-2020, 10:05 PM | #11 | ||
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02-07-2020, 05:39 AM | #12 |
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I definitely think it's worth while.
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02-07-2020, 06:39 AM | #13 |
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Based on the S55 videos post here and other places they're collecting condensate not much oil.
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02-07-2020, 01:30 PM | #14 | |
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Better in a catch can than spayed all over your intake tract, charge cooler and valves... |
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02-07-2020, 05:59 PM | #15 | |
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Thanks for that second link ! Exactly what I needed ! Also thanks for the warranty law but I am from Canada I don’t think they would follow that specific law . Maybe there is one similar here . |
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02-08-2020, 12:25 PM | #16 |
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Which catch can is everyone purchasing?
I see two different brands available: Turner CC ($299): https://www.turnermotorsport.com/p-5...tem-f8x-m3-m4/ BMS CC ($199): https://x-ph.com/burger-tuning-oil-c...b58-s55-s63tu/
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02-09-2020, 02:29 PM | #18 | |
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02-09-2020, 03:53 PM | #19 | ||
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I'll try the BMS. The Turner has a useless dipstick.
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02-09-2020, 04:13 PM | #20 |
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Silly question asked backwards:
Is there any possible DETRIMENT to installing this on a M2C/S55? i.e. What's the worst that can happen? R. |
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02-09-2020, 04:14 PM | #21 |
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Silly question asked backwards:
Is there any possible DETRIMENT/DOWNSIDE to installing this on a M2C/S55? i.e. What's the WORST that can happen? I'm sort of in the "might help, can't hurt" category. R. |
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02-10-2020, 12:48 AM | #22 |
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Don't think there are any downsides and only possible upsides.. I've had one installed for 10k+ kms. During the break in period, it filled up a good amount (about half the can over 1000km) mostly consisting of condensation with some oil gunk, however after the break in period, I've been checking every 3k kms or so and it's either been bone dry, or small amounts of oil gunk splattered inside the catch can. So i'd agree with the statement that it can't hurt, but might help statement. I have the BMS one btw, only costs $200. Which in reality, is pretty cheap preventative maintenance for a $60k car.
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