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Thread: The Best Spark Plug Out There

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Posts: 141-149 of 149
2009-04-17 03:04:03
#141
what about these plugs, they really look like side gapped. Anyone know which would fit our cars?
NGK Racing Spark Plugs
2009-04-17 03:09:23
#142
Originally Posted by macakin
what about these plugs, they really look like side gapped. Anyone know which would fit our cars?
NGK Racing Spark Plugs


Should be the same concept except for $18 more per plug
2009-04-17 13:09:25
#143
Originally Posted by Vadim
Should be the same concept except for $18 more per plug


didn't check the price

Just wanted to comment that I tried some BKR6E and lost some power at the dyno. I was using bkr6e-11 before and got the best result N/A, but I,m going to try the side gapping
2009-04-17 13:31:32
#144
Originally Posted by macakin
did check the price

Just wanted to comment that I tried some BKR6E and lost some power at the dyno. I was using bkr6e-11 before and got the best result N/A, but I,m going to try the side gapping


That makes sense, BKR6E-11's have a 1.1mm gap (Around 0.039), vs 0.8mm gap (0.032).

With bigger gap, you should see better power and MPG on NA. It would be good on boost too but, the spark would get blown out by boost.
2009-06-04 03:20:12
#145
I know this thread is old, but after talking with the guy at advance auto parts, it seem that the ngk bkr7e's arent available anymore. Is anyone else having this problem?

We sat down and tried to cross reference with the denso plugs but couldnt find a match it the proper heat range in copper. So i guess i am kind of screwed unless i want to spend an arm and a leg on iridium plugs, and with how often i like to change my plugs i may have to take out a second mortgage on my house.

Any help in this matter would be greatly appreciated.
Thanks,Jon
2009-06-04 03:24:08
#146
insane imports:

Please look here
2009-06-04 06:06:28
#147
Check out this plug. Number is 5820. Non-projected-tip. This keeps the spark plug farther away from detonation shockwaves, and prevents the ceramic from cracking under heavy hot/cold cycles. And they are cheap. Only downside is that they are non-resistor. But I have run them on several cars now without any issues with interference.

2009-06-04 13:15:36
#148
Very interesting find Coheed!

What do you mean that they are non-resistor?
2009-06-04 13:42:29
#149
Originally Posted by Vadim

What do you mean that they are non-resistor?


From NGK's website
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 interference 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 systems (CDI) such as used on some Johnson and Evinrude marine engines require a spark plug with a special inductive type resistor (such as NGK Z-type plugs). This is because these type of ignitions systems produces less voltage; use of non-inductive type plugs can cause misfires and poor performance.

For automotive CDI high output ignition systems (such as Mallory, MSD, Crane and Accel), refer to "Resistor plugs for race engines" in the ADVANCED TUNES section of this website for information relative to modified motors.
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