does anyone think this makes sense

[Eagle]

except that it doesn't work that way... not even on your stereo. the DC can never become a sine wave. ever.

Does your ignition cause the voltage to drop because of insufficient current? IE are you using 140 amps @14.2V to fire your coils? ie 2 kilowatts?


No.

Then you don;t need a cap.

it is a complete myth invented to sell $5 dollr caps for (apparently) $37 + 9 s&H.

poor idiot, whoever that was.

 

[ypsetihw]

hahahahahahaha garbage . . . how bout this, I send you paypal info and you send me the $20 or whatever, and I can "guarantee" that your car will run better LOLZ

 

[rich5368]

except that it doesn't work that way... not even on your stereo. the DC can never become a sine wave. ever.

In electrical systems basic terms you are 100% correct. AC sine waves have both positive and negative in a wavelike pattern where DC is a positive or negative wave in a sawtooth pattern. However in the case of what I was talking about you have a 14v supply. Your amp draws a large amount of current and your voltage drops to say 10v. If you hook an oscilliscope up to a subwoofer amplifier input power line and monitor the voltage you see drops and surges. If you were to draw a line along the peaks of the sawtooth patterns it creates a wavelike pattern albeit strictly positive or strictly negative. The biggest destroyer of electrical equipment is drops and surges. A capacitor reduces the drops and surges by acting like a accumulator. That's what I was trying to say without typing a mile long paragraph. So while you may not have a sine wave persay, you still have a dc signal in a wave pattern.

 

[Eagle]

except that it doesn't work that way... not even on your stereo. the DC can never become a sine wave. ever.

In electrical systems basic terms you are 100% correct. AC sine waves have both positive and negative in a wavelike pattern where DC is a positive or negative wave in a sawtooth pattern. However in the case of what I was talking about you have a 14v supply. Your amp draws a large amount of current and your voltage drops to say 10v. If you hook an oscilliscope up to a subwoofer amplifier input power line and monitor the voltage you see drops and surges. If you were to draw a line along the peaks of the sawtooth patterns it creates a wavelike pattern albeit strictly positive or strictly negative. The biggest destroyer of electrical equipment is drops and surges. A capacitor reduces the drops and surges by acting like a accumulator. That's what I was trying to say without typing a mile long paragraph. So while you may not have a sine wave persay, you still have a dc signal in a wave pattern.

So how is a cap going to help your truck get better mpg again?

 

[rich5368]

So how is a cap going to help your truck get better mpg again?

Not at all. I was just stating that the constant current idea that was previously posted was exactly what a cap is for in say a stereo system. Not going to help a truck at all in terms of mpg as there is no way that your coils are causing a voltage drop across the system. If they were then the lights would dim every time one of them fired. Seeing as how in most vehicles the lights are brighter with the engine running than without the idea makes no sense at all. As you previously stated the coils are infact capacitors and there is no way that the ignition is using 2kw of power.