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Old 10-05-2012, 10:23 AM   #83
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Join Date: Mar 2010
Location: Dallas, TX (USA)
Posts: 2,213
My Ride: E46 330i
Great forum members -

We have:
WDE46 = Automotive Engineer
SeanC = Ph.D Theoretical Physics

Now if we can find a Materials Engineer to chime in... we'll be rockin'.

Originally Posted by WDE46 View Post
The hose on our BMW may just be more stiff than other cars too. Also, I have no doubt that the output side of the pump (that hose) will be at a higher pressure than the rest of the system. This is where a flow sim would help, but I don't have enough data. Tapping a place for a pressure sensor/gauge is hard, because you will likely weaken the connection. You could cause a part to crack open.
Actually our upper and lower rad. hoses are quite soft when brand new.

Also, "tapping" into our cooling system at the bleeder screw (and at the auxiliary sensor) locations wouldn't be a bad idea without too much concerns of weakening or causing a part to fail.
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