[johnung]

Originally Posted by Slumped335

I kinda asked a similar question and they responded

“It is true that because how the xDrive oil sump is, it kinda creates a pseudo-baffle, which makes it less prone to oil starvation under "normal use". But under heavy load the oil starvation is very much an issue as in the RWD versions.

About testimonials all I can say is that we have a few clients who track their car heavily with had 0 issues with oil pressure since the install.
We also have been using it on our 800hp 335i xDrive for the last 2 track seasons, and oil pressure haven't been an issue either (we also run the S55 oil pump pressure tables to have increased pressure, which before the baffle wasn't possible).”

I’m certainly very interested. I plan on purchasing it next month and I expect about a month lead time which is kinda perfect as I purchase the rest of the items needed. I will definitely update when the time comes closer to arrival.

Great! Looking forward to hearing more.

Consider the VAC Coated Bearings. It’s the only real bearing upgrade that I know of. Frictionless surface actually withstands temporary oil starvation. I installed them when my XDrive oil pan gasket leaked and I had to spend the labor to drop it. Race teams have been using them for 20+ years.
https://store.vacmotorsports.com/mob...s55-p2723.aspx

[wheela]

Originally Posted by johnung

LPFP ISSUE:
There’s actually a similar LPFP pickup issue with high speed sweeping right hand curves when fuel tank is less than 1/2 full. Remember that the fuel tank is split into left & right halfs with the LPFP & pickup on the right side. So a right curve can prevent fuel from flowing right to left and starve the pickup. There is a LPFP pump mod that I’m going to have installed with some other things.

Do you know if people with Bucketed lpfp's have the problem too, or just people running bucket-less?

I don't know much about the lpfp, but I did recently come across this really informative post about the lpfp system over on 1addicts. He's n54, so it may not all carry over to n55, but I suspect most will carry over. He gets DEEP into the technical weeds, and its a long read, but definately an interesting one.

https://www.1addicts.com/forums/show...6#post32576206

[SlumpLord3000]

Originally Posted by Slumped335

I kinda asked a similar question and they responded

“It is true that because how the xDrive oil sump is, it kinda creates a pseudo-baffle, which makes it less prone to oil starvation under "normal use". But under heavy load the oil starvation is very much an issue as in the RWD versions.

About testimonials all I can say is that we have a few clients who track their car heavily with had 0 issues with oil pressure since the install.
We also have been using it on our 800hp 335i xDrive for the last 2 track seasons, and oil pressure haven't been an issue either (we also run the S55 oil pump pressure tables to have increased pressure, which before the baffle wasn't possible).”

I’m certainly very interested. I plan on purchasing it next month and I expect about a month lead time which is kinda perfect as I purchase the rest of the items needed. I will definitely update when the time comes closer to arrival.

Do they mention why they couldn't increase oil pressure to S55 oil pressure tables before the baffle? There is nothing mentioned about it in the "PSA: Preventing N55 from spinning rod bearing by increasing oil pressure to match S55" thread.

[wheela]

Originally Posted by SlumpLord3000

Do they mention why they couldn't increase oil pressure to S55 oil pressure tables before the baffle? There is nothing mentioned about it in the "PSA: Preventing N55 from spinning rod bearing by increasing oil pressure to match S55" thread.

No, you can increase the oil tables to match s55 without adding the baffle. I think he was saying they increase to s55 pressures for safety, but that without the baffle, they weren't able to maintain oil pressure per target in those known challenging conditions due to starvation, but with the baffles they could maintain target pressures - suggesting the baffles were working. At least that's how I interpreted it

[Slumped335]

Originally Posted by wheela

No, you can increase the oil tables to match s55 without adding the baffle. I think he was saying they increase to s55 pressures for safety, but that without the baffle, they weren't able to maintain oil pressure per target in those known challenging conditions due to starvation, but with the baffles they could maintain target pressures - suggesting the baffles were working. At least that's how I interpreted it

This is what i assumed as well, I will keep everyone posted. It will be a week or two before i purchase the baffle and probably longer till i receive the product.