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01-31-2012, 02:39 PM | #1 |
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Temporary solution for reducing powersteering overheating
Now I'm at the 3rd powersteering pump and 2rd steering rack after about 10 track days. Tired of braking the P/S system so we wanna try something different to prevent it keeps overheating and broken down.
Before: If I start tracking in the morning, I wouldn't be able to drive more than 3 laps anytime after 2pm during the day due to overheating the P/S fluid. After: We tested it full day at Buttonwillow, even though it was still overheated after 15 min none-stop tracking at afternoon, but I could track at lease. This isn't a perfect solution but I just wanna share that it does work. Why overheating?: As you can see from the pictures there's no air to the P/S cooler, that's the ultimate reason why it would cause overheating. Temporary solution: Move the passenger side of the cooler down to the lowest point you can reach. That's it. Last edited by wwjd15; 01-31-2012 at 02:51 PM.. |
01-31-2012, 03:21 PM | #3 |
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That was what another shop said and put the GT4 cooler (double the size of what we have on normal E9x) on my car last time and I killed the second pmup.
The most important is still the air flow not just the size of it. There's not enough air for the cooler as you can see from the pictures. |
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01-31-2012, 03:43 PM | #5 |
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01-31-2012, 08:57 PM | #6 |
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I have a very early '11 build (7/10) and in speaking with a BMW tech, he was complaining that they have changed the hose clamps on the power steering system. When asked why, he stated that the pressure in the steering system has been increased.
Not a lot to go on, but I suspect the pressure in the steering system has been increased in the past 12 months. Not sure if it helps or hurts your situation, but thought I would share. |
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02-02-2012, 09:51 PM | #8 |
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Wow that's crazy..
I never had this problem and have tracked my car a few times.. That car must have been though a lot! Looks great though.
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02-03-2012, 01:42 AM | #11 |
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Maybe you can use the right side hood vent to direct air somewhere via ducting???
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02-03-2012, 02:20 AM | #13 |
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That wouldn't be a bad idea since it's just a dysfunctional vent from the factory..
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02-03-2012, 03:16 PM | #14 | |||||
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Thank you James!! Yours look badass too!
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In fact, if you look under the car where BMW rounds all the lines, you will understand why they would fail. Quote:
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We can only lowered the passenger side due to the additional engine oil cooler I have on the driver side. Quote:
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Did I misunderstand your point? I wasn't very sure if we are talking about the same place. LOL |
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02-03-2012, 03:26 PM | #15 |
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awesome thread, quick question - what were your symptoms that your power steering wasnt working properly? Did you feel like the car wasnt in complete control under full throttle? Sometimes when im around 6grand and up during full throttle the car seems anxious to veer to one side or another (very subtle, but still noticeable) - im trying to pinpoint whether its the eibach springs i ahve on the car or a power steering problem. thank you!
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02-03-2012, 03:36 PM | #16 | |
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Overheat: feels stiff at steering wheel input angle more than 45% Fluid low: having problem with steering wheel turning at uphill area P/S pump gone: hit something in front of your face j/k. It won't turn during low speed, be prepared to turn it very very hard at low speed. |
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02-03-2012, 10:41 PM | #17 | |
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The vents in the front bumper are a non-option IMO. Between the intake, radiator, oil cooler, and trans cooler...no room. If you could use the non-functional hood vent, you're not sacrificing cooling from somewhere else. I was thinking you could just clamp a brake duct hose and run it to the p/s pump or something.
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