LED hedlamp install

[XfireZ51]

Originally Posted by secondchance

least intrusive method I found is to remove fog lamp relay under the passenger side dash, bend the grounding leg sideway and up (so that ground circuit is defeated), solder a wire on the ground leg and finally ground this new wire by hooping it under a 10 mm nut close to bottom of passenger side A pillar/front edge of passenger side door.
Soldering on to relay leg is pretty easy because most, if not all, relay legs have a hole where you can thread a wire before soldering.

Yes but u also mentioned grounding at the fog lamp. Did u do that? If so, how?
Any chance u have pic of where relay is on passenger side?

[Paul Workman]

Originally Posted by XfireZ51

Yes but u also mentioned grounding at the fog lamp. Did u do that? If so, how?
Any chance u have pic of where relay is on passenger side?

Noooo.... I think you misunderstood, Dom. The COIL portion of the fog relay has to be grounded - either at the relay (modifying the relay (bending it out and attahcing a ground wire to it) OR the harness between the relay and the dimmer switch has to be cut and the wire portion connected to the relay has to be grounded somewhere.

Nowhere does the stock wire between the dimmer switch and the relay come close to the area of the fog lights themselves.

When you look at the schematic, it all becomes clear.

OR, if you don't want to permanently disturb the stock wiring, NOR change the operation of the fog lights (turned OFF when the Hi beams are activated), the LOAD RESISTOR option is about you only option.

However, anytime you use a load resistor to maintain original control of the lights, you are not reducing the load on the alternator. Aside from operating the fans, the headlights are a significant load.

So, if you don't mind isolating the fog light operation from the (stock) headlight operation/configuartion, you CAN reduce the load on the alternator by grounding the (coil) portion of the fog light relay.

P.

[BigJohn]

So if you have a problem with your lights driving across Kansas; can you stop at Autozone to pick up replacement lights?

[Paul Workman]

Originally Posted by BigJohn

So if you have a problem with your lights driving across Kansas; can you stop at Autozone to pick up replacement lights?

Ha-Ha! YOU make a good point!

But, the answer is "Of course you can buy stock type sealed beam light(s). That will get you by until you can run down a replacement.

But, you raise a valid point about the LED headlight market being flooded with virtually every imaginable LED configurations!!

[XfireZ51]

Originally Posted by BigJohn

So if you have a problem with your lights driving across Kansas; can you stop at Autozone to pick up replacement lights?

Yeah or just bring the spare set of Halogens you just replaced.

[Paul Workman]

Chipsets by CREE if used in a particular headlight pair gives by association a certain level of confidence. They've been in the LED biz for decades, and are the leader in the technology.

Time will tell all. But, compared to incandescent bulbs (at least those producing the same amount of light), the LEDs are hands down winners in the service life comparisons.

But, as mentioned before, the LEDs don't run near as hot as HIDs or incandescent sealed beams. That means there may be issues with ice such as freezing rain building up on the lens. (Course, everyone knows that it's against the law to be driving a Corvette is such conditions in the first place. And, the Corvette Police will give you a ticket for driving in such weather anyway!)

I don't loose any sleep worrying about driving in a sleet storm...

.

[GOLDCYLON]

Originally Posted by XfireZ51

I recently bought a set of OSRAM LED headlamps. In process of installing them, and I notice that on the headlamp buckets for my ZR, there are only 2 adjusters,
One vertical, one horizontal. However, the FSM shows 3. But the bucket has provision for only 2 so it appears that it is not a case of missing parts or anything like that. It looks stock.

There were only two on my 90 and my 91. The FSM is wrong

[Paul Workman]

Originally Posted by GOLDCYLON

There were only two on my 90 and my 91. The FSM is wrong

Dittos. Same on our 90 and 91 Zs: TWO only.

Note the headlight housing is notched in two spots ONLY.

[XfireZ51]

Thx guys. Good to know.

[DRM500RUBYZR-1]

Wow!
You drive these cars after dark?
What's next?
Driving in the rain?

Marty