Spark plug:
Thread Starter
Melting Slicks
Joined: Aug 2010
Posts: 2,487
Likes: 10
From: Palm Beach Florida
St. Jude Donor '12
Spark plug:
I am in the process of installing a pair of headers. Since I have the original manifolds off now,(waiting for the headers to arrive) I figured I might as well change the plugs since there real easy to change now. I took one out to see what I had = AC DELCO R45TS. should I replace these with another type? Hot/Cold. I know to gap them at 45. I have a 77 L-48 with advanced timing, dual exhaust, my carb. has been tuned, and breaths better.
Last edited by daanbc; Aug 30, 2011 at 05:55 PM.
Le Mans Master
Joined: Aug 2006
Posts: 7,419
Likes: 1,555
From: mount holly NC
2025 c3 ('74-'82) of the Year Finalist - Unmodified
2019 C3 of Year Finalist (appearance mods)
Generally speaking...
Hotter plugs are best in a low compression / low performance engine to burn off combustion deposits.
Cooler plugs are better in high compression / high performance engine.
Cooler plugs are better in high compression / high performance engine.
Thread Starter
Melting Slicks
Joined: Aug 2010
Posts: 2,487
Likes: 10
From: Palm Beach Florida
St. Jude Donor '12
Thread Starter
Melting Slicks
Joined: Aug 2010
Posts: 2,487
Likes: 10
From: Palm Beach Florida
St. Jude Donor '12
Also, any advantage of running the wires on top? I prefer to keep them hidden like the factory. But I see so many replacing the long one's with short one's running on top.
Melting Slicks
Joined: Mar 2009
Posts: 3,126
Likes: 15
Hey Dave. R45TS are the correct ones. On the wires I think it will depend on the clearance you will have between the wires and the ends of the wires. They get real close on some of the cylinders. I am sure someone will have pics. mike...
Thread Starter
Melting Slicks
Joined: Aug 2010
Posts: 2,487
Likes: 10
From: Palm Beach Florida
St. Jude Donor '12
Thank you guys. I just took the shields off that covered the plugs. I was going to clean them up. Put got to thinking, I don't remember seeing any with headers. Do you leave them off when putting headers on? I assume they are there for protection from heat. So I would believe it's wise to place them back on. What are your thoughts on this?
Le Mans Master
Joined: Aug 2006
Posts: 7,419
Likes: 1,555
From: mount holly NC
2025 c3 ('74-'82) of the Year Finalist - Unmodified
2019 C3 of Year Finalist (appearance mods)
Over the top!
You won't need the shielding with headers but save the pieces and the cast iron manifolds.
You may need it someday.
Two stock wires go through the boomerang on each side on a stock set up, it's a real test of ability and patience, I'm sure other will post some over the top suggestions.
Here's the stock set up
Enjoy!
You may need it someday.
Two stock wires go through the boomerang on each side on a stock set up, it's a real test of ability and patience, I'm sure other will post some over the top suggestions.
Here's the stock set up
Enjoy!
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Melting Slicks
Joined: Jul 2009
Posts: 3,264
Likes: 3
From: Vero Beach FL
I am running long headers on my 71 and have the wires running underneath. I used the factory looms but did not use any of the shields and I am not sure they would fit.
Getting the headers on was not at all hard. The hard part was getting the headers to connect to my exhaust. Post a few photos if you can I know you have done a lot of work on your car this year.
Getting the headers on was not at all hard. The hard part was getting the headers to connect to my exhaust. Post a few photos if you can I know you have done a lot of work on your car this year.
Thread Starter
Melting Slicks
Joined: Aug 2010
Posts: 2,487
Likes: 10
From: Palm Beach Florida
St. Jude Donor '12
I am running long headers on my 71 and have the wires running underneath. I used the factory looms but did not use any of the shields and I am not sure they would fit.
Getting the headers on was not at all hard. The hard part was getting the headers to connect to my exhaust. Post a few photos if you can I know you have done a lot of work on your car this year.
Getting the headers on was not at all hard. The hard part was getting the headers to connect to my exhaust. Post a few photos if you can I know you have done a lot of work on your car this year.
Team Owner
Joined: Mar 2002
Posts: 24,160
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Myself and several other members I've seen have these overhead looms...
http://www.summitracing.com/parts/RNM-1101P/?rtype=10
They are buggers to setup, but they work really well for holding your wires away from your primaries. I can post pics tonight if you'd like.
http://www.summitracing.com/parts/RNM-1101P/?rtype=10
They are buggers to setup, but they work really well for holding your wires away from your primaries. I can post pics tonight if you'd like.
Pro
Joined: Jul 2010
Posts: 691
Likes: 25
From: Boynton Beach Florida
I have to agree with the over header wire looms since it is really close trying to go underneath with the factory set up with the way most header tubes are bent. I used some looms similar to the photo wcsinx posted since they follow the base of the valve cover which still looks clean.
If you need a hand give me a call.
If you need a hand give me a call.
Thread Starter
Melting Slicks
Joined: Aug 2010
Posts: 2,487
Likes: 10
From: Palm Beach Florida
St. Jude Donor '12
I have to agree with the over header wire looms since it is really close trying to go underneath with the factory set up with the way most header tubes are bent. I used some looms similar to the photo wcsinx posted since they follow the base of the valve cover which still looks clean.
If you need a hand give me a call.
If you need a hand give me a call.
