spark plug gap on headswapped gt?

RysRed96GT

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#1

• Jan 1, 2005

• #1

i hear that a smaller gap is better for headswapped cars due to the added compression. i was told around .04" or slightly higher is good instead of my .054 now. what do you all think?

also, i picked up some regular copper autolite 764's. is this ok? or should i switch to a colder plug? thanks!

 

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bdcardinal

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Jun 10, 2003

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santa barbara, CA

Jan 1, 2005

#2

• Jan 1, 2005

• #2

the 764's are fine for that. and the .04 gap sounds about right as well.

 

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Iniquity

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Dec 8, 2004

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#3

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Ryan just gap them and see the difference. i told you before to try it. .40 is what i told every one.

 

RysRed96GT

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#4

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thanks guys i'll gap 'em tommorrow.

iniquity, did you try this and feel a difference?

 

RysRed96GT

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*UPDATE*

ok, i regapped them to roughly .042. i drove the car and immediatly felt a difference. the car doesnt hesitate anymore when i get on it. the power comes on smoother than before. and i actually feel more torque all around. may be suttle, but i honestly feel it and the car sounds and runs healthier now.

 

98stangv8

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Oct 3, 2003

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#6

• Jan 2, 2005

• #6

RysRed96GT said:

*UPDATE*

ok, i regapped them to roughly .042. i drove the car and immediatly felt a difference. the car doesnt hesitate anymore when i get on it. the power comes on smoother than before. and i actually feel more torque all around. may be suttle, but i honestly feel it and the car sounds and runs healthier now.

Click to expand...

the guys from modularpowerhouse told me they were going to gap mine at .048 when they do my work...

 

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Iniquity

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#7

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RysRed96GT - Told ya. Huge difference in 2nd @ WOT.

 

RysRed96GT

I like it FURRY!!!

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#8

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Iniquity said:

RysRed96GT - Told ya. Huge difference in 2nd @ WOT.

Click to expand...

nice difference all over actually.

btw, how long to copper plugs usually last?

 

I

Iniquity

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#9

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copper plugs are very reliable, they last for awhile.