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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > Bent Rod, Cracked Ring, or?



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      05-01-2018, 09:30 AM   #23
weehe126
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Quote:
Originally Posted by Bours View Post
why ? stock rods are supposed to handle 600 wtq but you might be right and i think ill go forged rods for peace of mind
Yeah they should survive 600wtq, but PS2 are killing them and they don't make that much. I just don't see a point in building an engine and not upgrading rods.
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      05-01-2018, 10:46 AM   #24
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Originally Posted by weehe126 View Post
Yeah they should survive 600wtq, but PS2 are killing them and they don't make that much. I just don't see a point in building an engine and not upgrading rods.
Aight ! Upgrading them what about forged pistons now ?

They offer JE forged pistons but im afraid they will slap a lot in the canadian winter ( -15 celsius average all winter )

Also.i heard that when they slap it will eventually mess up your cylinders walls...


I chose oem coated pistons...


Thoughts ?
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      05-01-2018, 01:04 PM   #25
weehe126
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Can't comment on pistons. That's my fear as well. To many issues with early N54 builds for me to want to be the first to try upgraded pistons.
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      08-16-2019, 12:52 PM   #26
doodlebro
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Originally Posted by weehe126 View Post
Can't comment on pistons. That's my fear as well. To many issues with early N54 builds for me to want to be the first to try upgraded pistons.
You ever get to the bottom of this? I am having a similar issue with oil consumption, but it only really happens when I am driving hard. Been too scared to pull plugs and check them, but I also haven't noticed stumbling idle or any codes. Will probably have a leakdown/compression test done in a week or two but if it were rings I'd think I would smoke all the time... I have no smoke or leaks anywhere.
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      08-16-2019, 02:33 PM   #27
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Engine is still unopen and alive 30k+ miles later. I just have to replace the spark plug every 3-4k miles. Burn a quart every 1500 miles irrelevant of driving style.
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      08-19-2019, 05:23 PM   #28
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Originally Posted by weehe126 View Post
Engine is still unopen and alive 30k+ miles later. I just have to replace the spark plug every 3-4k miles. Burn a quart every 1500 miles irrelevant of driving style.
I'm 90% sure I have a bent rod then. When my turbo failed in January it sent oil all over the place and I think one of my cylinders got a bit too much and hydrolocked.

Leakdown/Compression should help verify this along with checking on plugs, but if I pull plugs and they are all dry I don't know what I'll do aside from live with it. I definitely have blacker exhaust tips and no leaks, but smoke never really appears, just drinks oil.
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