Power Steering Fluid

[timmo]

Your fluid is just too hot then.

That's just something that happens when you take your car to the track or go drifting. Many other track guys have that issue.

I usually wrap a paper shop towel around the cap and zip tie it, it keeps everything clean.

Yeah I had an old sock on the cap this summer, looking for something a bit more permanent and cleaner though.. Got a cheap reservoir off ebay for like $10, just need a small length of hose and some small fittings and it's good to go!

[mrgizmo04]

That's just something that happens when you take your car to the track or go drifting. Many other track guys have that issue.

Yep. Luckily I run Eventuri so super easy to get to and clean up, but annoying.

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[r4dr]

BMW PS systems need more volume and or real cooling for the track. I have that M3Post fix on my track car right now and it definitely cleans up the mess, but it introduces more crap in the engine bay and the proper solution is to loop in an actual cooler.

Even if you don’t have overflow, the PS fluid getting that hot means you’re not helping the lifespan of your rack. Proper cooling is the long term solution, ideally in addition to a larger reservoir.

[kokgo20]

BMW PS systems need more volume and or real cooling for the track. I have that M3Post fix on my track car right now and it definitely cleans up the mess, but it introduces more crap in the engine bay and the proper solution is to loop in an actual cooler.

Even if you don’t have overflow, the PS fluid getting that hot means you’re not helping the lifespan of your rack. Proper cooling is the long term solution, ideally in addition to a larger reservoir.

What is the M3post fix?

[jareds941]

BMW PS systems need more volume and or real cooling for the track. I have that M3Post fix on my track car right now and it definitely cleans up the mess, but it introduces more crap in the engine bay and the proper solution is to loop in an actual cooler.

Even if you don’t have overflow, the PS fluid getting that hot means you’re not helping the lifespan of your rack. Proper cooling is the long term solution, ideally in addition to a larger reservoir.

I've been looking very seriously at the Chase Bays kit. If you read their description, you start to realize it isn't that it's necessarily too hot or that your OEM setup is failing (although it may be) it's more about the design and the realities of track driving and the dynamics of the fluid. They also offer a cooler. I'm thinking about doing the whole thing this winter, but I haven't yet pulled the trigger.

https://www.chasebays.com/collections/bmw-e46/products/copy-of-chase-bays-power-steering-kit-bmw-e46-m3-w-s54

[bigjae46]

I shimmed the relief on my pump and eliminated the expansion loop and cooler. I get almost no leaks from the cap.

For a street car, would definitely run a cooler.

I’m willing to take a chance on my track car.


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[timmo]

What is the M3post fix?

A reservoir for your reservoir, dawg