As you guys all know how rich our cars run AF to the 9s and 10s above 3500rpms.
Anyways, I installed some zfr5-11 yesterday. They are one step hotter plugs. Because of the hotter combustion chamber i figure this way it would burn more fo the fuel off for a fuller combustion. I'm sure mazda but in a stock plug in the 6 range because of bad fuel and hot spots in the combustion camber in the 3rd cylinder because of the location. Hot spots can cause pre ignition causing detonation. This can happen because of the fuel quality or the temperature in the cylinder walls can too hot known has "hot spots".
I did a good amount of testing yesterday with these plugs and did get good gains in power and response. Although one thing that was worrying me was that the cooling fan was going on alot more then it was with the cooler plugs. Although i didn't hear any deontation, I was worried about hot spots being created in the cylinder camber in extensive high speed runs (autox, racing, drag).
Today i threw in a bottle of Redline Water wetter (7bux at autozone). Did another test. I ran the car hard and extensively with both A/C on and off. I let the car idle afterwards and was surprised and shocked that the cooling fans were not even going on only half as what it did before. This indicated to me that the cylinder walls were much cooler and the cooling system had to work half as hard. I am positive that the cylinder chambers were no more hotter then using the stock temp plugs.
I would definitly run the stock temp plugs at higer boost levels but at stock boost and its stock fuel ratio. I'm positive that and the water wetter and dumping of the fuel is sufficant enough to cool the cylinder walls down. This would maximize performance in the engine.
Anyways sorry for the rambling. Redline water wetter works as advertised. For 7bux its a great mod to keep your cooling system working as it should.
Anyways, I installed some zfr5-11 yesterday. They are one step hotter plugs. Because of the hotter combustion chamber i figure this way it would burn more fo the fuel off for a fuller combustion. I'm sure mazda but in a stock plug in the 6 range because of bad fuel and hot spots in the combustion camber in the 3rd cylinder because of the location. Hot spots can cause pre ignition causing detonation. This can happen because of the fuel quality or the temperature in the cylinder walls can too hot known has "hot spots".
I did a good amount of testing yesterday with these plugs and did get good gains in power and response. Although one thing that was worrying me was that the cooling fan was going on alot more then it was with the cooler plugs. Although i didn't hear any deontation, I was worried about hot spots being created in the cylinder camber in extensive high speed runs (autox, racing, drag).
Today i threw in a bottle of Redline Water wetter (7bux at autozone). Did another test. I ran the car hard and extensively with both A/C on and off. I let the car idle afterwards and was surprised and shocked that the cooling fans were not even going on only half as what it did before. This indicated to me that the cylinder walls were much cooler and the cooling system had to work half as hard. I am positive that the cylinder chambers were no more hotter then using the stock temp plugs.
I would definitly run the stock temp plugs at higer boost levels but at stock boost and its stock fuel ratio. I'm positive that and the water wetter and dumping of the fuel is sufficant enough to cool the cylinder walls down. This would maximize performance in the engine.
Anyways sorry for the rambling. Redline water wetter works as advertised. For 7bux its a great mod to keep your cooling system working as it should.
haven't put it in yet though.
