Easiest and cheapest headlight upgrade?

pb92supraturbo

FTG & the IRL!
Aug 20, 2005
172
0
0
32
Garage, under Supra
Installing a heavy duty harness isn't that big of a deal. The only connections you have to make are to the positive terminal of the battery and grounding to the chassis. The hardest part to me was routing the wiring to protect and conceal it. I ordered my harness from suvlights.com a while back and haven't had any problems with it.



tim_kido said:
Thanks alot for all the great input guys, really appreciate it. Got a few follow up question after reading all your responses:

2) . . . . and which online retailer sellers sells high quality rewireing harness for the conversion(i.e. with the correct connectors for all the parts so all I do is plug n go)?


thanks

Tim
 

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Ckanderson

Supramania Contributor
Apr 1, 1983
2,644
0
0
41
The beach
turbogate said:
With the Hella E-codes, how high of a bulb wattage can we go without worrying about stock harness burning etc. I think stock is 60/55W? could we go 100/55W for example with stock harness?

Thanks


I recomend just the 60/55 going to 100 watts wasnt a lot brighter for me on the two cars I tried it on (supra and BMW) and both bulbs burned out quicker then normal.
 

A-to-the-J

Panda™ and Pre-89 Gracer™
Feb 19, 2006
1,080
1
38
38
Anaheim/West Covina, CA
buy the e-codes and jump in the GB for the HID's. If i have enough after tomorrow, i just might jump in if i can budget just right.

i'm hopefully picking up my car.
 

theprodigy79

Irish Cream
Mar 5, 2007
221
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45
Centreville, VA
I run SilverStars also... Very happy with 'em.

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Poodles

I play with fire
Jul 22, 2006
16,757
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43
Fort Worth, TX
see the two bright spots and tons of glare above that? that's light that could be better used to light the road

E-codes don't do that
 

tweak666

New Member
May 11, 2006
152
0
0
boca raton, FL

there are a bunch of different kit options, whats the differences? whats the better bulb choice? are all of these are direct swap options?

Installing a heavy duty harness isn't that big of a deal. The only connections you have to make are to the positive terminal of the battery and grounding to the chassis. The hardest part to me was routing the wiring to protect and conceal it. I ordered my harness from suvlights.com a while back and haven't had any problems with it.

i checked suvlights.com and i'm not sure which harness is the right one, there's one that lists some toyota models and another heavy duty one for 9003/H4, 9004/HB1, 9005 & 9006, 9007/HB5. which one is best for supras?
 

Poodles

I play with fire
Jul 22, 2006
16,757
0
0
43
Fort Worth, TX
regardless, it's a sub-par DOT housings that simply glares and doesn't use the light in a well controlled and useful matter

E-code are far more advanced and made for better lighting, less glare, and where the step right before projectors...
 

pb92supraturbo

FTG & the IRL!
Aug 20, 2005
172
0
0
32
Garage, under Supra
You need the H4 ground switch type electrical system harness I believe. On my old Celica, I didn't need the ground switch option, but my Supra required it. E-mail suvlights and they will confirm which is the correct harness for you.

http://www.suvlights.com/product_info.php?products_id=114




tweak666 said:
i checked suvlights.com and i'm not sure which harness is the right one, there's one that lists some toyota models and another heavy duty one for 9003/H4, 9004/HB1, 9005 & 9006, 9007/HB5. which one is best for supras?
 

tim_kido

New Member
Aug 29, 2007
12
0
0
Seattle
Hi all,

After reading everyone's response on the subject, I ordered a pair of E-spec Hella 200mm reflectors, a hair of Philips X-Treme Power H4 and a wireing harness with fuse.

I connected everything (except for the ground wire which sort of just dangles around without a metal contact) and then when I tried to turn on the headlights, nothing happens! I checked each lightbulb by directly plugging them into the OEM plug and both bulbs work perfectly.

My question is, did I have too strong of a fuse and it is preventing electricity from actually reaching the lightbulb when I'm using the harness?

Now Supra's original sealed beam is only 35W and the new H4 are 55/65W. The Fuse on the wireing harness reads 12V 30A.

For those who knows their EE, is the reason why my light wouldn't turn on caused by:
1) ground wire not connected to a metal surface?
2) the fuse is of the wrong spec/type?

Also, what kind of damage will I cause to my OEM wireing harness if I plug the H4 directly into the OEM socket? Essentially I'm plugging in 55/65W into a harness design to take only 35W bulbs. Do I need to worry it will generate too much heat and burn out the wires?


thanks


Tim
 

suprarx7nut

YotaMD.com author
Nov 10, 2006
3,811
1
38
Arizona
www.supramania.com
Poodles said:
ground needs to be connected......

X1000000

The ground is there for a reason...

It completes your circuit if I'm reading this right. Without it you have no flow, just a bunch of voltage. :)

Ps. I'm not aware of any kind of fuse which would prevent flow from being TOO strong. The fuse simply breaks when enough power is run to it.
 

AaronsSupraMKIII

Supramania Contributor
Jul 27, 2007
254
0
0
52
Athens, AL
What he said. \/ :naughty: Ground connects or no electron flow (Current) then no load to the circuit (lights). Fuse will let even the smallest Ampere and Volt through, just blows when to much power goes through it to protect the circuit.

suprarx7nut said:
X1000000

The ground is there for a reason...

It completes your circuit if I'm reading this right. Without it you have no flow, just a bunch of voltage. :)

Ps. I'm not aware of any kind of fuse which would prevent flow from being TOO strong. The fuse simply breaks when enough power is run to it.
 

tim_kido

New Member
Aug 29, 2007
12
0
0
Seattle
I understand that the ground completes the circuit but is it still true if that ground is suppose to only attach to a metal part on the car?

Sorry if this sounded like a dump question but I'm an idiot when it comes to anything EE related :)



thanks


Tim
 

tim_kido

New Member
Aug 29, 2007
12
0
0
Seattle
by the way, am I correct in assuming I can attach the ground wire to any metal surface or is there a spot on the Supra designed specificly for people to attach ground wires to?



Tim
 

TurboWarrior

New Member
Apr 1, 2005
763
0
0
41
Canada
stupid canadian parts stores. They don't carry silverstar in H4.


If you want it real cheap get the ebay ones I have them.

But E-codes use the light better like stated.