risaac928

I am looking to upgrade my stock POS headlights..... I would like to know if this would be a good buy/good idea?

I found this on ebay, here is the description:

Porsche H4 headlight conversion kit (x2) EURO High Output head lamp set
H4 High/Low beam headlight conversion kit (set of 2)

Replaces 7'' Round Sealed Beam Headlight
Includes: (2) headlight assemblies, (2) H4 bulbs

"OFF-ROAD USE ONLY" Not Certified for Highway Use.

Recently made by HELLA, not been lying around.

The Forgotten On

As long as they look like this and have a cut off in the lens you are set.

If they don't have a cut off keep looking because you will just blind traffic with a glorified miniature H5.

Alan

Sounds like it is a 7" H4. If so second best incandescent lighting you can get on a 928. make sure you have everything you need (mounting frames).

Compare to the new cost from Roger (very resonable I think...)

Always get Bosch/Hella/Cibie etc quality glass lamps.

Alan

Imo000

The 7" H4s are a direct drop in to the factory sealed beams. No extra parts are needed just remove the sealed beams and xrop these is, the connector is the same too. I have a Bosch set in mime and the difference in light output and quality is amazing. Well worth is.

risaac928

jeff spahn

Alan
What is the best incandescent lighting you can buy on a 928 (like my 90S4)?

Alan

The 8" Bosch H4's - much more expensive than 7" and incrementaly better (8" H4 is the best and 7" H4 is good and the best value).

Roger has both new, probably 928 Intl does too.

Alan

PS there are cheap knock offs that calim to be "H4" don't be fooled - if it's dirt cheap (new) - stay away, if it's plastic - stay away, if it isn't branded - stay away, only look at the top brands Bosch, Cibie, Hella... Likely none of these will be labelled as DOT lamps, however they are better & safer in actual use than any period DOT lamp for a 928.

jpitman2

On many RHD 8" H4s here in Oz the lens has a bump moulded on the top that sticks up above the cover. I believe its what I call a 'tell-tale" - you can see it from the driving seat, so you know the bulb is lit or not. My UK delivered Euro does not have these tell-tales.
Its visible here http://www.ebay.com/itm/Porsche-928-...item232af86fc8
I havent really felt the need to upgrade these to higher wattages so far - maybe I dont drive fast enough? I had some 130/100 bulbs years ago.

jp 83 Euro S AT 55k

LT Texan

I bought my Hellas from Summit Racing. I went with the street legal ones. They sell both.

Imo000

^^^Are they street legal in North America or only in Europe?

jeff spahn

My 1990 S4 has those tell tale bumps on the stock US lights.

VT928

I ran 7" Hella H4's on my 1980 Euro S for years, they are excellent in terms of lighting and the area of the beam pattern. The the pattern of the beam is very flat with a 15 degree up turn to the right, think hockey stick. I can't tell you how many times cars would pass me on dark country roads here in Vermont only to slow down 15 mph when they realized thier headlights did not come any where near giving the road view they had when following me. I ran 80/100 zenon bulbs in mine, with upgraded wiring mods. I only went to 8" lenses to return my euro to the look it had from the factory. The 8" lenses are better than the 7"s but the improvement is much less that the improvement of going from sealed beams to the 7" Hellas. The early Euro cars and can put out enough light to melt the brass buttons on a cops uniform at 1000 meters. In addition to the head lights the car my euro car has 2 fog lights at (55 watts each) and two driving lights (100 wats each) that light when the hi beams are on. Euro cars are factory wired so that the headlights, fog lights and the driving lights can all be on at the same time. My car also has an upgraded alternater.

Paul

1980 Euro S Red/Blk Les

LT Texan

I bought the US street legals.

Hellas

Alan

Unfortunately you bought the wrong ones... there's legal & crap & not-legal and really great.

When I say Crap and Great - I mean a huge difference in how good these are for all parties involved. H4s are better than H5s in EVERY way - you will see much better - brighter & better focussed on ALL of the road and you can upgrade to higher output to see even better. In all cases H4s spill less light into oncoming motorists eyes so they are safer for all concerned. You will see overhead and roadside signs much better with H4s also.

The only reason they weren't DOT approved is because the DOT regulations were written is a very STUPID way oriented around existing old beam patterns - not on real functional parameters that made any sense related to how lighting hits the road and oncoming cars. It took them decades to stop forcing great designs by european manufacturers to have to be ripped out and replaced by crap for ONLY the american market. This includes the 'nicer looking' H5 design.

Modern certification practices would likely rule H4s legal if seeking approval today.

Alan

LT Texan

Live and learn.

They're still better than the sealed beams I had.

Or at least I think they are.