Can any one type of spark plug make more power than the next? What if you gap them bigger or smaller? Let’s find out on Engine Masters!
#MotorTrend #enginemasters #sparkplugs
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Did any of these test results surprise you?
Did you guys try indexing the plugs? I heard that can make a difference over 5500 RPM?
If any of them worked better the manufacturer would have called for them, in some toyotas they do spec irridiums, and i use what they call for, otherwise a good working spark plug, is as good as any other good working spark plug, even the comercials for the expensive spark plugs tell you that they are no better, they say quote “when you replace your old worn out spark plugs with our plugs you will gain horsepower and fuel mileage” they never lied they only compare themselves to old worn out plugs not properly functioning plugs