2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Can S4 wiring handle 55/100 watt H4 bulbs?

Thread Tools
 
Search this Thread
 
Old Jul 25, 2003 | 01:06 PM
  #1  
j200pruf's Avatar
Thread Starter
RIP Icemark
Tenured Member 05 Years
iTrader: (4)
 
Joined: Oct 2002
Posts: 1,481
Likes: 1
From: Aloha OR
Can S4 wiring handle 55/100 watt H4 bulbs?

Hey all, after I have my alternator rewired I was thinking of upgrading to some 55/100 watt H4 bulbs in my 7. I have run them on some of my bikes and I absolutly love the extra highbeam power. But I know the RX7 wiring is kinda shitty in someway and need to know if the headlights would need a reqire.

Thanks
-Justin
Reply
Old Jul 25, 2003 | 01:25 PM
  #2  
Scott 89t2's Avatar
SOLD THE RX-7!
Tenured Member 10 Years
 
Joined: Mar 2001
Posts: 7,451
Likes: 0
From: Vancouver, BC, Canada
I wouldn't try
Reply
Old Jul 25, 2003 | 03:45 PM
  #3  
turbocajun's Avatar
Junior Member
Tenured Member 05 Years
 
Joined: Dec 2002
Posts: 38
Likes: 0
From: St. Louis
I have 80/100's in my Hellas. No problems during the 3 years I have had them in. I have an '88 TII but I would think that the wiring size/type would be similar in all FC's, but don't hold me to that. I have run these types of lights in all sorts of cars from a 1973 Capri (German made) to my 7 with no problems. I have always heard the wiring on American cars could not handle the additional current draw, but I have never owned an American car so I can not speak for those applications.
Reply
Old Jul 25, 2003 | 03:53 PM
  #4  
j200pruf's Avatar
Thread Starter
RIP Icemark
Tenured Member 05 Years
iTrader: (4)
 
Joined: Oct 2002
Posts: 1,481
Likes: 1
From: Aloha OR
I will proably just re-wire them when I put them in, shouldn't be that big of a deal.
Reply
Old Jul 25, 2003 | 04:40 PM
  #5  
iluvrx7z's Avatar
Senior Member
Tenured Member 10 Years
 
Joined: Sep 2001
Posts: 297
Likes: 0
From: puerto rico/connecticut
I have done the Hella H4 conversion, forgot the exact wattage of the bulbs included in the kit however in over 1 year have seen no ill effects.

87 TII

Dan
Reply
Old Jul 26, 2003 | 01:39 AM
  #6  
NZConvertible's Avatar
I'm a boost creep...
Tenured Member 05 Years
 
Joined: Jan 2002
Posts: 15,608
Likes: 8
From: Auckland, New Zealand
The stock wiring will probably handle it fine, but you won't be getting the best performace that's possible out of them, due to voltage drop through the smaller-than-ideal wires.

If you look at the wiring diagram you'll see it's very easy to upgrade the headlight wiring. Just run new wires in parallel with the old ones from the headlight fuse to the headlight relay to the dimmer relay to the headlights.
Reply
Old Jul 26, 2003 | 03:05 AM
  #7  
boosted1205's Avatar
Rotary Enthusiast
Tenured Member 15 Years
iTrader: (9)
 
Joined: Jun 2003
Posts: 1,191
Likes: 0
From: west
When running high power headlights through stock wiring, always use a relay. I wouldn't add on high power accessories until you've upgraded the alternator. The S4 alternators really cannot handle add ons. The electric fan pulls about 15amps and it barely keeps things working.
Reply
Old Jul 26, 2003 | 03:24 AM
  #8  
introVert's Avatar
putting it down daily
Tenured Member 15 Years
 
Joined: May 2003
Posts: 1,294
Likes: 0
From: Auburn, CA
Yeah, I would think about getting an FD alt- Silverrotor is selling em.
Reply
Old Jul 26, 2003 | 03:29 AM
  #9  
j200pruf's Avatar
Thread Starter
RIP Icemark
Tenured Member 05 Years
iTrader: (4)
 
Joined: Oct 2002
Posts: 1,481
Likes: 1
From: Aloha OR
Yeah I already said that I am going to have my alternator rewired. Oh damn I can't wait to get my car back on the road.
Thanks everyone.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Jeff20B
1st Generation Specific (1979-1985)
73
Sep 16, 2018 07:16 PM




All times are GMT -5. The time now is 01:17 AM.