2006 XKR gets Reduced Performance after elevation change
#21
Mish,
I believe BMW uses that Hella pump as an aux. pump for the heater core. I couldn't nail it down for sure but looks like BMW used that same pump on some of their 7 series cars in the 1990's. I probably won't have a chance to check mine out for several weeks. If I discover a bad pump I was going to use the Bosch pump--part. # 0 392 022 002 which I located on ebay for $109 and believe has a 10% better flow rate.
Good luck and let us know your outcome.
Mike, 06 XKR
I believe BMW uses that Hella pump as an aux. pump for the heater core. I couldn't nail it down for sure but looks like BMW used that same pump on some of their 7 series cars in the 1990's. I probably won't have a chance to check mine out for several weeks. If I discover a bad pump I was going to use the Bosch pump--part. # 0 392 022 002 which I located on ebay for $109 and believe has a 10% better flow rate.
Good luck and let us know your outcome.
Mike, 06 XKR
#22
Mish,
I believe BMW uses that Hella pump as an aux. pump for the heater core. I couldn't nail it down for sure but looks like BMW used that same pump on some of their 7 series cars in the 1990's. I probably won't have a chance to check mine out for several weeks. If I discover a bad pump I was going to use the Bosch pump--part. # 0 392 022 002 which I located on ebay for $109 and believe has a 10% better flow rate.
Good luck and let us know your outcome.
Mike, 06 XKR
I believe BMW uses that Hella pump as an aux. pump for the heater core. I couldn't nail it down for sure but looks like BMW used that same pump on some of their 7 series cars in the 1990's. I probably won't have a chance to check mine out for several weeks. If I discover a bad pump I was going to use the Bosch pump--part. # 0 392 022 002 which I located on ebay for $109 and believe has a 10% better flow rate.
Good luck and let us know your outcome.
Mike, 06 XKR
#24
Dick,
It's interesting that the circuit is designed to protect at 15A but the motor could draw more than that? I was going to check the schematic to see how this pump is activated---thermostat or is it on when the engine is running. There could be a bad connection which would increase your resistance in the circuit and jack the amps up in the process. I'm curious how you figured that the pump wasn't running---was there an DTC on the ECU?
It's interesting that the circuit is designed to protect at 15A but the motor could draw more than that? I was going to check the schematic to see how this pump is activated---thermostat or is it on when the engine is running. There could be a bad connection which would increase your resistance in the circuit and jack the amps up in the process. I'm curious how you figured that the pump wasn't running---was there an DTC on the ECU?
On the resistance point, high resistance at a connection will in fact cause heat that can melt terminals; but it will not cause higher current draw, ohms law tells you it will DECREASE current. Only lower resistance can cause higher current flow.
Cheers,
The following users liked this post:
Spurlee (02-24-2011)
#25
I installed Toyota pump from Prius's power converter cooler and it turns on along with ignition. See picture of me ziptying it on.
Not sure about power difference, since I only drove this car for few days, after I bought it.
Also, I just got my awesome "swedish" pump from SL63 AMG show up, so she will go in today, before I hit the weekend roads
Not sure about power difference, since I only drove this car for few days, after I bought it.
Also, I just got my awesome "swedish" pump from SL63 AMG show up, so she will go in today, before I hit the weekend roads
Last edited by Mish_Mish; 02-18-2011 at 08:22 AM.
#26
I got that big booty AMG pump in! Dry it revvs like a jet engine, but rather quiet when wet. Also, motor in it is a lot larger, so I had to remove rubber sleeve that went around original pump. Other than that, compressor cooling hoses are now ice cold, when I pop the hood, after getting to work.
#27
I still haven't had a chance to get into my pump---lots of business travel in the first qtr. I was looking at your Bosch pump # 0 392 022 010 which puts out 1400 dm3/hr (equates to around 6.16 GPM) flow rate versus the Bosch # 0 392 022 010 (I believe is the Ford Mustang "Lightning Pump") which puts out around 1200dm3/hr (5.28 GPM). I'd really like to know if anyone knows what the original Hella I/C pump put out in flow rate? Here's my reason---if you jack the flow rate too much will it actually lose cooling ability due to less time in the heat exchanger?
Mike, 2006 XKR
Mike, 2006 XKR
#28
Well this does not sound reasonable, cos with this rationale, boats with open cooling system would have to go slower and rev engines less, to get properly cooled, not to mention the slow flying airplaines and stuff
#30
Have taken measurements some time ago to compare some pumps and the Hella flowed about 5.37 gpm and the Bosch with partno 0392022002 flowed 6.17 (all at 13 volts with a system head of about 0.3 bar and a large radiator, but stock intercoolers/piping).
Can definitely recommend the bosch one if you need to replace the original hella.
Can definitely recommend the bosch one if you need to replace the original hella.
Last edited by avos; 02-25-2011 at 12:22 AM. Reason: typo, and added bosch partno info.
#31
#32
#33
Here is just an example for the bosch pump PArtno 0392022002, only $119:
:http://www.siliconeintakes.com/product_info.php?products_id=1001
:http://www.siliconeintakes.com/product_info.php?products_id=1001
#34
#35
Join Date: Sep 2008
Location: Damon /Houston, Texas
Posts: 7,254
Received 2,190 Likes
on
1,357 Posts
Thread
Thread Starter
Forum
Replies
Last Post
scottatl
XK8 / XKR ( X100 )
2
09-04-2015 08:08 PM
MC36
US Lower Atlantic
0
09-01-2015 07:34 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)