HKS spark plugs.Anyone knows if they fit?
02-07-17, 05:03 PM
#2
When it comes to plugs and their part numbers, for them to "fit" they need to be the right length and width of thread for your car.
That's the easy part.
What you need to make sure of is that they will have the right gap and temp range for your application - Who SC'd your car? they should be able to help
That's the easy part.
What you need to make sure of is that they will have the right gap and temp range for your application - Who SC'd your car? they should be able to help
02-07-17, 07:10 PM
#3
Thank you for the reply.I have the LMS sc kit and the guy who is tuning it told me that i should lower the gap on my spark plugs.Boosted cars must have lowered gap spark plugs.I found these from HKS so i wanted to see if anyone knows if i should better use them instead.
02-07-17, 08:40 PM
#4
What's the gap though? .8, .6, 1.0? I've never checked what the factory gap is to begin with.
You can't really go wrong with the factory spec plugs as they'd be in a safe heat range band you can always gap them a touch smaller if needed using a a gauge.
It's the heat range you need to check though, your car might want a warmer running plug than stock.
You can't really go wrong with the factory spec plugs as they'd be in a safe heat range band you can always gap them a touch smaller if needed using a a gauge.
It's the heat range you need to check though, your car might want a warmer running plug than stock.
02-07-17, 10:16 PM
#5
Stock spark plug has 3 electrodes, so the gap is slightly harder to compare to a single electrode spark plug type. Unless you are getting spark blowout and/or misfires I doubt you'll get a huge benefit from changing the plug type. Still, it may be worth a shot if you'd like to give it a try.
The difference between the M40/45 is the heat range.
Factory heat range is Denso 20, which is equivalent to NGK 6.
The HKS M35iL is equivalent to NGK 7/Denso 22 (1 step colder than factory).
The HKS M40iL is equivalent to NGK 8/Denso 24 (2 steps colder than factory).
The HKS M45iL is equivalent to NGK 9/Denso 27 (3 steps colder than factory).
Personally I wouldn't recommend the M45, if you aren't really having any issues now, I would suggest trying the M35iL. If for some reason you want to go 2 steps colder, the M40iL will likely work decently.
Factory plug gap is 1.1mm, finding the spec for the HKS plus is proving to be more difficult, I would expect it to be around 0.8mm.
Jeff
The difference between the M40/45 is the heat range.
Factory heat range is Denso 20, which is equivalent to NGK 6.
The HKS M35iL is equivalent to NGK 7/Denso 22 (1 step colder than factory).
The HKS M40iL is equivalent to NGK 8/Denso 24 (2 steps colder than factory).
The HKS M45iL is equivalent to NGK 9/Denso 27 (3 steps colder than factory).
Personally I wouldn't recommend the M45, if you aren't really having any issues now, I would suggest trying the M35iL. If for some reason you want to go 2 steps colder, the M40iL will likely work decently.
Factory plug gap is 1.1mm, finding the spec for the HKS plus is proving to be more difficult, I would expect it to be around 0.8mm.
Jeff
02-08-17, 01:37 AM
#6
Stock spark plug has 3 electrodes, so the gap is slightly harder to compare to a single electrode spark plug type. Unless you are getting spark blowout and/or misfires I doubt you'll get a huge benefit from changing the plug type. Still, it may be worth a shot if you'd like to give it a try.
The difference between the M40/45 is the heat range.
Factory heat range is Denso 20, which is equivalent to NGK 6.
The HKS M35iL is equivalent to NGK 7/Denso 22 (1 step colder than factory).
The HKS M40iL is equivalent to NGK 8/Denso 24 (2 steps colder than factory).
The HKS M45iL is equivalent to NGK 9/Denso 27 (3 steps colder than factory).
Personally I wouldn't recommend the M45, if you aren't really having any issues now, I would suggest trying the M35iL. If for some reason you want to go 2 steps colder, the M40iL will likely work decently.
Factory plug gap is 1.1mm, finding the spec for the HKS plus is proving to be more difficult, I would expect it to be around 0.8mm.
Jeff
The difference between the M40/45 is the heat range.
Factory heat range is Denso 20, which is equivalent to NGK 6.
The HKS M35iL is equivalent to NGK 7/Denso 22 (1 step colder than factory).
The HKS M40iL is equivalent to NGK 8/Denso 24 (2 steps colder than factory).
The HKS M45iL is equivalent to NGK 9/Denso 27 (3 steps colder than factory).
Personally I wouldn't recommend the M45, if you aren't really having any issues now, I would suggest trying the M35iL. If for some reason you want to go 2 steps colder, the M40iL will likely work decently.
Factory plug gap is 1.1mm, finding the spec for the HKS plus is proving to be more difficult, I would expect it to be around 0.8mm.
Jeff
Thank you for the reply again Jeff
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