Project Chevy Tahoe: Project Tahoe PIAA Driving Lamps

Lights, Action

Sep. 01, 2003 By Dean Waters
Last month we installed a new RCD Light Hoop on the front of Project Tahoe and it was looking pretty bare hanging out there without anything on it. To fix that problem we ordered a set of PIAA 520 ION Crystal Driving Lamps. Why driving lamps?Driving lamps are designed to be mounted above the bumper and at a height of 14" to 30". That is right where our mounts are on the new RCD light hoop. Driving lamps supplement your high beams to increase the range and brightness. They must be turned off as you dim your lights and are too bright to leave on when facing oncoming traffic. You need to check your local laws and regulations as to usage of driving lamps.

ION Crystal Technology The ION crystal technology transforms white light into amber light without reducing the strength of the beam. This greatly enhances your visibility when driving in bad weather. The amber beam reduces reflectivity and glare meaning less eye strain for the driver.

520 ION Crystal

Since we are now located in a part of the country that experiences it's share of bad weather in the winter the PIAA 520 ION Crystal Driving lamp seemed to be a perfect fit for our new RCD Light Hoop. The 520 uses a 12 volt H3 85 watt bulb and comes in either black or chrome plated housing with a mesh style cover. The dimensions were a good fit given the 14" between mounting holes on the RCD hoop. Included in the kit are two lamps, wiring harness, relay, switch, and mesh style lens covers.


Installation

The attachment spot on the RCD hoop did not allow enough clearance for adjustment of the light.
We located a new bolt and some larger nuts to space the lamp up about an inch. (We will pickup some stainless spacers next trip to the hardware store.)


First step was getting the lamps mounted on the hoop. We found that we had to adapt the mounting just slightly as the front of the lamp hit the bar without a spacer. We found a new bolt and a couple larger nuts to space the lamp up about 1" from the mounting hole. The gave the Lamp plenty of room for adjustment.

We removed the bolts holding the grill and pulled it out just enough for us to fish the harness through in the right spot.
We ran the wiring harness down behind the battery of the Tahoe and then out the grill.


With the lamps mounted we turned to wiring. I have not mounted a set of lamps in quite some time but recalled the wiring headache that always goes with it. PIAA changes that with the complete wiring harness and kit included. First thing was to run the harness to the lamps. I had to separate the grill slightly so that I could get the harness run down behind the battery and out to the lamps on the font bumper.

We drilled a hole in the firewall so that we could fit the light switch wiring through.
Connecting to the parking lamp so that the lights will only work with the lights on. NO DEAD BATTERIES.


With one end of the harness connected to the lamps we located a ground bolt on the firewall of the Tahoe right beside the battery. We connected the ground wire from the harness and also the relay switch to this bolt. Next we connected the white wire to the positive terminal of our battery to power the relay. Now we just needed to run the harness through the firewall so it could canned to the switch. It would have been nice to have a little more wire to route the wires but we were able to make it reach. You may be able to find a hole in your firewall but we ended up drilling a new one in ours. Once through the firewall simply snap together the harness and switch.

Only one more connection is needed to finish the wiring. You need to connect into your parking lamp wire. We removed our driver side parking lamp and spliced in there with the splice provided in the kit. That's it, we were done. The installation was MUCH simpler than rigging your own relay and harness. I am now a big believer in the PIAA installation kit.

Aiming Your new PIAA Lamps Now that the new lamps were ready to go we needed to wait for night to aim the lamps. We marked out a spot 30' from the shop door. (The box shows to use 30' while the instructions on the PIAA site say 25'.) We then marked a spot on the door the same height as the lamps. Once it was dark we aimed the hot spot from the lamps at the height we had marked on the door.

Testing We did not have any inclement weather to test with since our installation so good weather would have to do. The ION Crystal lamps produce a noticeable amber light that gives a much clearer picture of what is ahead of you on the road. We like it and can not wait for some bad weather. Well maybe we CAN wait for the bad weather, but in the mean time we sure are enjoying the extra light and clearness provide by the PIAA 520 ION Crystal driving lamps.


BEFORE
AFTER



Contact Information


PIAA Corporation, USA
15370 SW Millikan Way, Beaverton, OR 97006
Telephone: 503.643.7422
Fax: 503.643.9144
www.piaa.com

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