MSP Spark plug options
- Thread starter Tommy1005
- Start date
GhostLinker
Member
Is there a down side to use IK22 on a NA P5 ?
I have the IK20 installed for a year and was wondering if it is worth it to switch.
What is the recommended replacement interval for those plugs (IK20 and 22) ?
Here is a nice pic of our plugs:
I have the IK20 installed for a year and was wondering if it is worth it to switch.
What is the recommended replacement interval for those plugs (IK20 and 22) ?
Here is a nice pic of our plugs:
GhostLinker
Member
Found the answer for how long the plugs will last.
"DENSO advises replacement after 30,000 miles"
More info on gapping from the denso site:
Q. Do I need to set the gap?
A. Generally, no. The DENSO Iridium Power plug comes pre-set with a protective sleeve over the firing end, to protect the gap from accidental alteration. DENSO Iridium Powers ultra-efficient firing power compensates for normally recommended gap settings that are smaller than the pre-set value. In the cases of vehicle modifications (nitrous, turbo-chargers, super-chargers, high power ignition systems, etc.), some adjustments may be desired. Or, if you prefer to remain consistent with factory specifications, you may adjust. However, please be careful not to place any stress on the fine center electrode during adjustment. You could accidentally break off the very hard, and therefore brittle, tip.
Q. How do I gap Iridium plugs
A. Before attempting to gap any DENSO Iridium Power spark plug, please review the specification chart to see the factory-preset gap. In most cases your Iridium Power plugs do not need to be gapped. Even with small variations in the factory set gap the ultra-efficient firing power design will compensate for those small variations. Should you decide to re-gap your Iridium Power plug, use extreme caution as improper gapping may damage or destroy the Iridium center electrode or porcelain center. To increase the gap size: Step 1 Use needle nose pliers or spark plug gapping tool to bend the ground strap up to the desired height. DO NOT LET THE PLIERS OR GAPPING TOOL TOUCH THE IRIDIUM CENTER ELECTRODE OR PORCELAIN. Step 2 Re-check the gap with a calibrated gapping tool. To decrease the gap size: Step 1 Use the same method as above, however bend the ground strap down to the desired height. DO NOT LET THE PLIERS OR GAPPING TOOL TOUCH THE IRIDIUM CENTER ELECTRODE OR PORCELAIN. Step 2 Re-check the gap with a calibrated gapping tool. WARNING: Failure to follow these directions may permanently damage the spark plug. Note: Never use a round gapping tool to check the gap or to increase or decrease the gap setting.
"DENSO advises replacement after 30,000 miles"
More info on gapping from the denso site:
Q. Do I need to set the gap?
A. Generally, no. The DENSO Iridium Power plug comes pre-set with a protective sleeve over the firing end, to protect the gap from accidental alteration. DENSO Iridium Powers ultra-efficient firing power compensates for normally recommended gap settings that are smaller than the pre-set value. In the cases of vehicle modifications (nitrous, turbo-chargers, super-chargers, high power ignition systems, etc.), some adjustments may be desired. Or, if you prefer to remain consistent with factory specifications, you may adjust. However, please be careful not to place any stress on the fine center electrode during adjustment. You could accidentally break off the very hard, and therefore brittle, tip.
Q. How do I gap Iridium plugs
A. Before attempting to gap any DENSO Iridium Power spark plug, please review the specification chart to see the factory-preset gap. In most cases your Iridium Power plugs do not need to be gapped. Even with small variations in the factory set gap the ultra-efficient firing power design will compensate for those small variations. Should you decide to re-gap your Iridium Power plug, use extreme caution as improper gapping may damage or destroy the Iridium center electrode or porcelain center. To increase the gap size: Step 1 Use needle nose pliers or spark plug gapping tool to bend the ground strap up to the desired height. DO NOT LET THE PLIERS OR GAPPING TOOL TOUCH THE IRIDIUM CENTER ELECTRODE OR PORCELAIN. Step 2 Re-check the gap with a calibrated gapping tool. To decrease the gap size: Step 1 Use the same method as above, however bend the ground strap down to the desired height. DO NOT LET THE PLIERS OR GAPPING TOOL TOUCH THE IRIDIUM CENTER ELECTRODE OR PORCELAIN. Step 2 Re-check the gap with a calibrated gapping tool. WARNING: Failure to follow these directions may permanently damage the spark plug. Note: Never use a round gapping tool to check the gap or to increase or decrease the gap setting.
Last edited:
I just switched to these: Bosch 4230 (platinum)(stock heat range) gapped at .32
The car had NGK BKR7E in engine gapped at around 37-40
The First thing I noticed was an extemly better idle. I just put in the AWR front mount (88) and ithad a bit of shake to it not much but it was there. Now I have no shake at all at idle.
I am hitting the highway in a few minutes and I will see how the top end fares.
The car had NGK BKR7E in engine gapped at around 37-40
The First thing I noticed was an extemly better idle. I just put in the AWR front mount (88) and ithad a bit of shake to it not much but it was there. Now I have no shake at all at idle.
I am hitting the highway in a few minutes and I will see how the top end fares.
- :
- '13 CWP MS3 & '16 Mazda6 GT
Hey, I have stock plugs in & currently have a CS exhaust & Injen intake. What plugs should I runt hat might be an improvement over stock? And If I raised the bosst slightly which would be good for that also?
GhostLinker
Member
For Canadians the option is http://clubplug.net/canada/ (first)
willkill said:
FYI. Just installed the IK20 yesterday. Replaced the stockers. I have a SMIC, Injen CAI, and Hardpipes. .....stock boost. First of all the IK20 do not extend as far as the stock NGKs. The NGKs are noticeably longer. Secondly the NGK's had 30K on them and swapping in the IK20's did not provide for any noticable improvement in smoothness or acceleration (Not that I had a problem to begin with). I hope that my gas mileage improves at least. Maybe I should have just put in another set of stockers?
P.S. Not trying to crap on the IK20's just want everyone to know that they are not noticeable better than the stockers at least in my experience.
Stock NGK 6 should be fine. You can check the tip of the plug to make sure that you're currently running. Unless you're full out racing it, the stock range should be fine for 10.
If it doesnt have a brownish color and its black the plug is too cold, so look for the brownish color. There's a plug guide chart with pics somewhere online.
If it doesnt have a brownish color and its black the plug is too cold, so look for the brownish color. There's a plug guide chart with pics somewhere online.
- :
- 2003 Subaru WRX Wagon, 2000 Miata
JDM Sam said:
Looking at getting the PZFR6F-11 from sparkplugs.com since these are closest to OEM. They are pre-gapped at 0.044. Should I gap them to 0.032 like the Mazda manual says? I am a little confused at whether a heat range 6 plug should stay gapped at 0.044 or to the 0.032 gap. Or should I go for the IK22s which come pre-gapped at 0.032 and are one heat range colder?
Last edited:
- :
- MP5T / 944
Ngk Zfr6f-11
- :
- 2003 Subaru WRX Wagon, 2000 Miata
Brian MP5T said:
werd... thanks
