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#11
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#12
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Quote:
There should be a recall for it or something, saftey issue isnt it?
__________________
2003 4.6is 2004 E53 4.4i N62 http://i.imgur.com/nNNg5Qz.jpg http://i1238.photobucket.com/albums/...ps3xxtq5op.jpg 2007 E63 M6 S85 http://i.imgur.com/mSXK6ML.jpg 1984 Porsche 911 930 Turbo http://i.imgur.com/i9XUXOg.jpgg http://i.imgur.com/ZMGou51.jpg 1983 E21 320i [Sold] http://i1238.photobucket.com/albums/...psfd905353.jpg |
#13
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Thanks Turbo! Seems like putting the new pad between the old pad and the leather is key to keeping it in place. Or would you do it differently next time?
I was considering using an even higher value resistor. I think a .68 ohm resistor will give us 68W. I think it would take 1.44 ohms to get us back to 50W. Am I calculating this wrong? Digikey has 1.2 ohm resistors rated for 60W which should get us to 54W. Also, the 60W resistors are about twice as much as the 50W ones. I take it you are worried about running more current through them than they are spec'd for? |
#14
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Great write up!
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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior Dallas |
#15
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I think a higher value resistor could be used for a more 'OE' heating speed / power but the wattage of the resistor will need to be increased since more voltage will drop through it. |
#16
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Thanks again Turbo. I think I'll start with a 50W 1.2 ohm resistor. Looks like that will be ~54 watts across the circuit with ~30 going into the mat and ~24 going to the resistor.
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#17
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I'm impressed with your solution and ability. It will work on most autos.
I would have been inclined to try and find a seat cover from a wrecked vehicle, wonder what becomes of good seats. traveldad |
#18
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Thanks Turbo. You made a lot of us happy.....
I already ordered my parts and something I would mention is that a 2ohm 100w resistor may do the job for the ones that will like some slower heating. To keep in mind is that the power should be calculated at ~13.0-13.5V considering the car is running and the alternator/regulator is pushing voltage. |
#19
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nice pics , only thing i would add is to get a pair of hogring plyars , to make things go alot easier for those metal hog rings that hold the fabric to the seat frame.
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2003 bmw x5 3.0i ,219000km build date 2003-08-18 |
#20
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Nice job
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650hp 10 X5///M - Stage 2, Vibrant 1794's , gutted cats, custom intake, AC Forged 22's 325hp 98 BMW 740iL - ///M5 6spd, www.bavengine.com w/ Performance Option, electric fan, CF intake tube w/ heatshield, Mag 14816 w/ notched bumper, Bilstein/H&R Stage II/Powerflex 600+hp 02 Harley F150 - MHP900 Stage 3 engine, KB2.3, 8# lower, 60# inj, Walbro FP's 135hp 01 TL1000R - M4 full exhaust, K&N, Yosh box, -1/+2 gears, 2CT's
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