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12-05-2006, 03:48 PM
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Hummer Professional
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Join Date: Jun 2006
Posts: 373
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Re: HID lights
You're right about the boiling point of water changing relative to elevation but with a closed system there isn't a pressure differential with a change in elevation (internal to the system) so it's not a factor.
What *is* a factor is the reduced atmosphere at higher elevations and the impact is causes by reduced thermal dissipation. Since the air is thinner at high altitudes, engines can't get rid of their heat so they tend to overheat unless their cooling systems are sized to account for the sparse atmosphere.
Couple that with the fact that volumetric efficiency falls off with low density air and you've got a recipe for disaster.
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12-05-2006, 11:11 PM
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Hummer Authority
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Join Date: Nov 2004
Location: Little Rock, Arkansas
Posts: 1,784
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Re: HID lights
Thanks Doyle for setting Me straight on the altitude thing. It had been a couple of years sense I read about it.
TAZ
__________________
05 H2 SUV cus. paint, Magnuson SC 6/12lb boost, cowl hood scoop, 12" dash touchscreen, GM elec. fans, HPTuners.com tuning soft., Dynatech headers dual catback exhaust Jet Hot chrome front to back Flowmaster Super 40's, Diamo 8 Karat rims & 325X60-20" Toyo, 4 OEM Captain seats Katzkins leather, rear console computer inside running all AV/NAV etc., Infinity component system 3 amps Tsunami Caps, rear flip down 12" monitor, headrest monitors, overhead console boost, fuel pressure, & A/F ratio gauges
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03-24-2007, 04:26 PM
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Hummer Veteran
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Join Date: Feb 2007
Location: Indianapolis
Posts: 60
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Re: HID lights
What size bulbs do you need in the driving lights? Did you have to get new housings for them?
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03-26-2007, 04:35 PM
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Hummer Veteran
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Join Date: Jun 2005
Location: Ecuador
Posts: 42
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Re: HID lights
The PIAA driving lights come with the HID bulbs and they simply replace the stock lights in the same position.
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03-27-2007, 01:30 AM
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Hummer Veteran
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Join Date: Jan 2003
Location: Pleasanton, CA
Posts: 80
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Re: HID lights
Quote:
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Originally Posted by Michael Baker
The PIAA driving lights come with the HID bulbs and they simply replace the stock lights in the same position.
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Hey Michael,
Nice install job. I also have HID's on the headlights. I also mounted the ballasts the same way you did. The only difference is probably my reflectors. I bought a kit that only comes with the bulbs, ballasts and wire kits so I kept my stock reflectors. And Yes, the difference IS night and day.
Q1: What's the PIAA part number for the DRL replacement?
Q2: Do they just unscrewed off when the hood is in the open position? or did you have to remove the bumper and other junk?
__________________
03 Yellow Hummer H2 - Wife's School Bus- Pioneer AVIC D3 w/ backup camera/iPod integration/Sirius, 24" DropStars with 36" Pirelli Scorpions, Real HIDs, Bling-ed out...
04 Black Acura TL full A-Spec
88 Red Porsche rare 930 Cab
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03-27-2007, 01:51 AM
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Hummer Veteran
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Join Date: Jun 2005
Location: Ecuador
Posts: 42
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Re: HID lights
1. PIAA 600 is the part number
2. Was fairly easy to get them off, more difficult to align the new ones - see my original post
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03-27-2007, 10:39 AM
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Hummer Veteran
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Join Date: Feb 2007
Location: Indianapolis
Posts: 60
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Re: HID lights
I was looking at the PIA 600's...are they projectors? Very cool but not as chaep as a $300 conversion kit. I guess its the way to go to do it right. I put HID's into a reflector housing once and it threw more light into the sky than on the ground.
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