Plugs too cold?

A

Aaron'S'tang

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Nov 10, 2005

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Lake Geneva, WI

Sep 24, 2006

#1

• Sep 24, 2006

• #1

I changed my plugs and now the car runs pretty crappy. I put in Autolite 23's @ .035 because I have Powerdyne 9lb. SC. Should I have gone with 24's? How will a car run if the pulgs are too cold?

 

8

86bluecobra

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Dec 20, 2004

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Sep 24, 2006

#2

• Sep 24, 2006

• #2

did your car run a 11.9 on those plugs? if so is that what you consider crappy?

 

8

86bluecobra

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Sep 24, 2006

#3

• Sep 24, 2006

• #3

if a spark plug is 2 cold you will start to get fouling(ie carbon build up) on the tip of the plug. pull them and have a look.

 

A

Aaron'S'tang

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Nov 10, 2005

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Lake Geneva, WI

Sep 24, 2006

#4

• Sep 24, 2006

• #4

86bluecobra said:

if a spark plug is 2 cold you will start to get fouling(ie carbon build up) on the tip of the plug. pull them and have a look.

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It seamed to run fine at WOT but it idles like **** and surges. Almost seems like it is running really rich. It's hard to tell though because I have summer tires on and it's pretty cold out today so tires spun pretty bad. I think I might need a hotter plugs.

 

8

86bluecobra

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Sep 24, 2006

#5

• Sep 24, 2006

• #5

if you get a set of hotter plugs pull them after a wot run. check for detination damage.

 

HISSIN50

"How long does it take to get help in here?

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Nov 29, 1999

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Sep 24, 2006

#6

• Sep 24, 2006

• #6

I'd think the 23's would be alright (I've run two ranges colder on other cars before without issue. I've only gone one range colder on a 5.0 though [but it's N/A]).

I agree - pull them or atleast one plug and see what gives. They're copper or irridium plugs, right (not plats)?

Good luck.

 

A

Aaron'S'tang

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Nov 10, 2005

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Lake Geneva, WI

Sep 24, 2006

#7

• Sep 24, 2006

• #7

HISSIN50 said:

I'd think the 23's would be alright (I've run two ranges colder on other cars before without issue. I've only gone one range colder on a 5.0 though [but it's N/A]).

I agree - pull them or atleast one plug and see what gives. They're copper or irridium plugs, right (not plats)?

Good luck.

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Yeah Coppers. I'll have to pull one off and see what it looks like

 

A

Aaron'S'tang

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Nov 10, 2005

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Lake Geneva, WI

Sep 26, 2006

#8

• Sep 26, 2006

• #8

Well, after I put the the old spark plugs back in on the right side of the engine and started on the left (pain in the azz because of SC) I realized that I had left one of my plug wires sitting against the headers. It obviously melted. STUPID HUH!! So I got a new plug wire and put all my old plugs back in and it runs like a champ.

The question remains though, are 23's to cold for my setup and how important is plug gap. The 23's gapped @ .036 were obviously not burning all of the fuel. The 24's that were in there seemed to run decent but they were gapped @ like .050. Should I get new 24's and gap them somewhere in the middle like .043 and see how that works? Thanks for the help.

 

8

86bluecobra

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Sep 26, 2006

#9

• Sep 26, 2006

• #9

i was looking at vortechs web site and instalation guide and they were recomending that you use factory heat range spark plugs.

 

A

Aaron'S'tang

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Lake Geneva, WI

Sep 27, 2006

#10

• Sep 27, 2006

• #10

86bluecobra said:

i was looking at vortechs web site and instalation guide and they were recomending that you use factory heat range spark plugs.

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Really?

 

8

86bluecobra

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Sep 27, 2006

#11

• Sep 27, 2006

• #11

yep.

 

A

Aaron'S'tang

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Sep 27, 2006

#12

• Sep 27, 2006

• #12

86bluecobra said:

yep.

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Seriously!