winter build up
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From: The Beach, CA
Originally Posted by JDM S2000,Oct 16 2006, 01:12 PM
People have been running these for years on FI there is nothing wrong with them
I use the 7173's myself but I will be swapping out to the plugs he's mentioned on the first oil change.
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From: local courts ...
Kane does make a very good point! If you can find something that is the same cost, yet is more similar to the stock spark plug... why not!
To those who do not know what 'Resistor' is in the spark plug - here is the article by www.sparkplug.com :
This line alone - "Use of non-inductive resistor type plugs on these motors can cause misfire and poor performance." makes me want to swap out the NGK 7405's that I have.
To those who do not know what 'Resistor' is in the spark plug - here is the article by www.sparkplug.com :
Originally Posted by SparkPlug.com
Resistor
At the moment the spark jumps the gap it causes a high frequency burst of energy, this is known as RFI (radio frequency interference). This is why resistor spark plugs were introduces in the mid 1960's. Placing a resistor within the spark plug suppresses the RFI. Without resistor plugs in your car you can experience static on your radio as well as interfere with other sensitive electronic equipment. Some later model vehicles as well as newer Powersport engines must use resistor plugs for a proper "talkback" to the electronic ignition. Outboard marine Capacitive Discharge Ignition (CDI) such as used on some Johnson and Evinrude marine engines require a special inductive type resistor (such as a Champion Q-type or NGK Z-type). Use of non-inductive resistor type plugs on these motors can cause misfire and poor performance.
For automotive CDI high output ignition systems systems (such as Mallory, MSD, Crane and Accel), refer to Resistor plugs for race engines for information relative to modified motors.
At the moment the spark jumps the gap it causes a high frequency burst of energy, this is known as RFI (radio frequency interference). This is why resistor spark plugs were introduces in the mid 1960's. Placing a resistor within the spark plug suppresses the RFI. Without resistor plugs in your car you can experience static on your radio as well as interfere with other sensitive electronic equipment. Some later model vehicles as well as newer Powersport engines must use resistor plugs for a proper "talkback" to the electronic ignition. Outboard marine Capacitive Discharge Ignition (CDI) such as used on some Johnson and Evinrude marine engines require a special inductive type resistor (such as a Champion Q-type or NGK Z-type). Use of non-inductive resistor type plugs on these motors can cause misfire and poor performance.
For automotive CDI high output ignition systems systems (such as Mallory, MSD, Crane and Accel), refer to Resistor plugs for race engines for information relative to modified motors.
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Originally Posted by JDM S2000,Oct 16 2006, 04:12 PM
People have been running these for years on FI there is nothing wrong with them
I take the advice of my tuner, and you can choose not to. It's your call and you can do whatever you want.
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Originally Posted by passmans2kny,Oct 16 2006, 08:05 PM
ah i knew i forgot something. should i get the aem map sensor or is there something better you guys would recomend?
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From: local courts ...
Originally Posted by passmans2kny,Oct 16 2006, 07:05 PM
ah i knew i forgot something. should i get the aem map sensor or is there something better you guys would recomend?
Originally Posted by JDM S2000,Oct 17 2006, 08:36 AM
Ok so i ordered the 7173s yesterday, then I read this thread and called and switched to the 7405s
WHICH ONE IS CORRECT, FOR ME AND FOR THE GUY DOING THE BUILD
WHICH ONE IS CORRECT, FOR ME AND FOR THE GUY DOING THE BUILD
Sure, with how much boost I plan to run going 2 Heat Range Colder would be better... however, I have never been to fond of Iridium Plugs. On top of that, the 7405 Plugs are Non-Resistor design.
