Ignition Amplifiers

[Reddog99]

Originally Posted by severous01

1) it only takes about 3kv to spark a plug

2) it doesnt matter how much spark is there, the fuel will ignite, the piston will move down, and the engine will run

3) unless it's a timing change it will do nothing for engine performance...believe me. please

Regarding spark voltage, that's not exactly right. The voltage required to jump the gap depends on the pressure in the combustion chamber at that time: more pressure requires more voltage. That's why an engine with a weak spark system can run OK at low speeds and start missing at high RPM or under load. So for example, although 3kv might be sufficient to spark a plug at idle, 40kv or more might be required for a spark to jump a gap at full throttle & high RPM.

[JumpmanYaris]

So I think its prety much what he said in a way it will run anyways, however he didnt mention anything about driving it, and yes it is going to drive but you are going to feel the diffrence in the motor even still with low volatage or if it was to have a bad spark

If I am understanding what SEVEROUS and REDDOG are saying.

[bearda]

I've heard very few good reviews of the Pulstar plus, and a lot of bad ones. For one, when they did a GB for the Pulstar plugs on mazda3forums.com their quality control was awful. About half of the participants had to have at least one plug replaced due to misfiring. Some of the people who finally ended up with a good set of 4 noticed faster startup, but nobody could prove any power increase.

[gatoman]

Originally Posted by Reddog99

Regarding spark voltage, that's not exactly right. The voltage required to jump the gap depends on the pressure in the combustion chamber at that time: more pressure requires more voltage. That's why an engine with a weak spark system can run OK at low speeds and start missing at high RPM or under load. So for example, although 3kv might be sufficient to spark a plug at idle, 40kv or more might be required for a spark to jump a gap at full throttle & high RPM.

so let say i have a brand new yaris... would it do any good if i buy more powerful sparkplugs?