Speed3 Spark Plugs and Ignition Wires

[JYoung31]

Hey, for my grade 12 Auto shop class, i gotta perform a spark plug change and change my ignition wires for my CPT (basically a big year end assignment). Im currently running c-pe CAI and HKS SSQV BOV (vta). which plugs should i use? do i need to go 1 or 2 step colder? what gap should i set it? and what ignition wires should i use?

Thanks in advance for the help.

[S.F.W.]

Hey, for my grade 12 Auto shop class, i gotta perform a spark plug change and change my ignition wires for my CPT (basically a big year end assignment). Im currently running c-pe CAI and HKS SSQV BOV (vta). which plugs should i use? do i need to go 1 or 2 step colder? what gap should i set it? and what ignition wires should i use?

Thanks in advance for the help.

Go 1 step colder Denso ITV22 come pre-gapped.

[MajesticBlueNTO]

Hey, for my grade 12 Auto shop class, i gotta perform a spark plug change and change my ignition wires for my CPT (basically a big year end assignment). Im currently running c-pe CAI and HKS SSQV BOV (vta). which plugs should i use? do i need to go 1 or 2 step colder? what gap should i set it? and what ignition wires should i use?

Thanks in advance for the help.

you need to find a car with a Distributor to change spark plug wires. you're looking at early 90s to find a car like that.

Spark plugs? stay stock if you can afford it.

[studum]

you need to find a car with a Distributor to change spark plug wires. you're looking at early 90s to find a car like that.

Spark plugs? stay stock if you can afford it.

Not necessarily, just a car that isn't coil-on-plug (for all plugs).

My old protege ('03) was 2 x COP plus 2 x plug wires, each coil fired 2 plugs.

My old Subies shared the same engine, and they were both one coil pack with 4 x plug wires (2000 model year).

Just saying by example that it doesn't necessarily need to be that old or have a distributor. I'm sure that he will know that though, and know what he will have to bring in to do the test.

[SomeGuy]

We have coil packs on each plug, no plug wires.

You should just use stock plugs.

[studum]

Yes I'm aware of that. Was just trying to say that the vehicle he uses for his test doesn't necessarily need to have a distributor.

I now realize that he wanted to use his car for the test, I didn't get that on the first read through. I was trying to help him open up his search for a suitable vehicle.

[betterthansx]

Go 1 step colder Denso ITV22 come pre-gapped.

It is best to gap them yourself though. I have bought pre-gapped plugs that were fine and some that were WAY off. It makes a difference when it is properly gapped vs not, so why not spend the $4 and get a gap ring and check them.

[SomeGuy]

He doesn't need 1 step colder plugs.

[betterthansx]

He doesn't need 1 step colder plugs.

The rule is you go 1 step colder for every 75-100hp gained.

[Timotee]

Not sure if OP is adding that much HP though.....are you JYoung?

[starscream]

Stock heat range... gap them 0.028 to 0.026...

And also using the search function might get some previous information that might help...

[MajesticBlueNTO]

The rule is you go 1 step colder for every 75-100hp gained.

That's more of a guideline.

MS3 owners that subscribed to that rule years ago have found out that, for a full bolt on stock turbo, the stock spark plugs are just fine.

Hell, I ran factory plugs putting down ~300 whp for over 50,000 kms, including numerous track days and, when they were removed at 100,000 kms, they looked like they could take another 100,000 kms.

[Fobio]

^^^Guidelines for sure...and also depends on the way you drive.

Counter-intuitive: the harder you drive, the cleaner your plugs MAY be. Those who baby their direct-injection, turbocharged MS3 MAY have dirtier intake tracts and plugs than those of us who drive it like it's meant to be driven.

[betterthansx]

That's more of a guideline.

MS3 owners that subscribed to that rule years ago have found out that, for a full bolt on stock turbo, the stock spark plugs are just fine.

Hell, I ran factory plugs putting down ~300 whp for over 50,000 kms, including numerous track days and, when they were removed at 100,000 kms, they looked like they could take another 100,000 kms.

Good to know

[Cab0oze]

I got my NGK Iridiums 's (which are the OEM plugs, and are excellent) for 48$ shipped to my door off ebay. They are pre-gapped (correctly) but it doesn't hurt to double check.

As has already been said - dont' go with the one step colder plugs, and no wires to change.

[JYoung31]

@Timotee yea im pree much stock except for CAI and BOV...so im no where near 75+hp gain.

so i should gap my plugs at 0.026-0.028? and which plugs should i exactly get? and by "stock plugs" do u mean NGK iridiums?

[mickey_g]

yes

[MajesticBlueNTO]

NGK Laser Iridium are the stock plugs.

There's a reason they cost a lot. The differences are in that thread.

[Cab0oze]

NGK Laser Iridium are the stock plugs.

There's a reason they cost a lot. The differences are in that thread.

Per my post, they are pre-gapped correcly, and you can find them for 50 bucks on ebay. No need to pay 80+

[mickey_g]

or pick them up through here http://www.clubplug.ca/

[JYoung31]

picked up denso ITV22 plugs last week. doing the change tmrrw, but what is the torque spec of the plugs? cant find it online anywhere.

[mickey_g]

hand tighten and a quarter turn with a wrench should do it...i think about 11ft-lbs with a torque wrench

Edit: I have personally never used a torque wrench to tighten the spark plugs. Just don't over tighten the plugs and it should be fine