AVIDMOTION
06-29-2010, 04:47 PM
Opinions are like......NEEDED! Spark plug opinions needed.
I have 28000 on the stock plugs and I am changing them, I replace them at 30,000 no matter what. They will last the said 100,000 miles, but some wear is inevitable and that little wear costs 10% in performance and a small spike in gas mileage. For the 40 bucks to change them I get slightly better mileage and more response, piece of mind etc, and worth it to me to be at top efficiency also. Besides that I have developed a slight miss at idle. Regardless of the reasons not to change them- I am changing them out. Now the questions:
I have Vararam intake, X pipe, straight thru Magnaflows, 91 Cortex tune,and the Hrsk.
I live in NJ- 95 degree summers, 10 degree winters.
Should I stay with stock, or go one step colder?
What is the stock plug and gap?(or better brand of stock plug-all opinions accepted)
What is one colder step plug and what gap for that?
Do I have to change the wires too, or use dielectric grease in the boots?
Also I may change out the thermostat to 180 for the summer, what difference in plug choice would this cause? Example do I do the 180 thermo but not one step colder plugs or do them both(no real heating issues and with my sc'd regal GS going colder killed my gas mileage).
Anything else I need to know in order to change them out a one shot deal-special tricks or tools needed)
Thanks all opinions appreciated.
I have 28000 on the stock plugs and I am changing them, I replace them at 30,000 no matter what. They will last the said 100,000 miles, but some wear is inevitable and that little wear costs 10% in performance and a small spike in gas mileage. For the 40 bucks to change them I get slightly better mileage and more response, piece of mind etc, and worth it to me to be at top efficiency also. Besides that I have developed a slight miss at idle. Regardless of the reasons not to change them- I am changing them out. Now the questions:
I have Vararam intake, X pipe, straight thru Magnaflows, 91 Cortex tune,and the Hrsk.
I live in NJ- 95 degree summers, 10 degree winters.
Should I stay with stock, or go one step colder?
What is the stock plug and gap?(or better brand of stock plug-all opinions accepted)
What is one colder step plug and what gap for that?
Do I have to change the wires too, or use dielectric grease in the boots?
Also I may change out the thermostat to 180 for the summer, what difference in plug choice would this cause? Example do I do the 180 thermo but not one step colder plugs or do them both(no real heating issues and with my sc'd regal GS going colder killed my gas mileage).
Anything else I need to know in order to change them out a one shot deal-special tricks or tools needed)
Thanks all opinions appreciated.