Best spark plugs for full bolt on

[Angelesco0]

Hey guy I have a 2020 Mustang gt full bolt ons just wondering what the best spark plugs are

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[robvas]

What aren't the stock plugs doing for you?

 

[Zrussian13]

O.E.M

 

[Angelesco0]

What aren't the stock plugs doing for you?

Just wondering to go with oem or another option

 

[Angelesco0]

O.E.M

Thank you for you help

 

[Zrussian13]

Thank you for you help

Haha but really if your not boosted I'd stick with oem.

 

[robvas]

Just wondering to go with oem or another option

If you're not misfiring or fouling plugs, using different plugs won't make any more power or anything

 

[Skye]

Listing your bolt-ons would be helpful. But if none of those vendors list specific requirements, the stock plugs at their recommended gaps should continue to perform well. In this example, changing the plugs will not increase power, improve drivability or reliability.

Sometimes, drivers will replace their existing plugs with another OEM set, just to freshen things up and confirm each cylinder is looking good. If you go this route, buy the replacement plugs from a reputable source: the dealer or major parts vendor. Third-party sellers have been known to pass off counterfeits.

 

[NGOT8R]

If you're not misfiring or fouling plugs, using different plugs won't make any more power or anything

My 2019 is an FBO + nitrous car and I have NGK 6510 plugs. It still performs very well (even when not using nitrous). I’m gapped at 0.28 too.

 

[John S]

Just curious if stock plugs are preferred if I switch to E85 on a stock engine with the usual bolt-on induction/exhaust upgrades? There's so much conflicting information regarding best heat range and gap for the cooler running E85 fuel I don't know what to think? (I won't be advancing to forced induction so at least that can of worms is avoided. )

 

[NGOT8R]

You don’t have to go with colder plugs, but it certainly won’t hurt you to run them either. E85 is great for making power and burning cooler. I only mentioned it to let you know that I have them on my FBO + nitrous car which is driven N/A most of the time and it Dyno’d at 469 rwhp/434 rwtq on those plugs. Given that you’re never going to run forced induction, save yourself the time and money and stay with the factory plugs.

When you do tune, please come back and share your exact mods and Dyno sheet for comparison to see if you’re still in the same ballpark for power on the factory plugs.

 

[SCP440]

I fitted a set of NGK Ruthenium https://ngksparkplugs.com/en/products/ignition-parts/spark-plugs/ruthenium-spark-plugs and the difference is noticeable. The car starts quicker and there is more torque from lower revs.

 

[kellyreno]

You don’t have to go with colder plugs, but it certainly won’t hurt you to run them either. E85 is great for making power and burning cooler. I only mentioned it to let you know that I have them on my FBO + nitrous car which is driven N/A most of the time and it Dyno’d at 469 rwhp/434 rwtq on those plugs. Given that you’re never going to run forced induction, save yourself the time and money and stay with the factory plugs.

When you do tune, please come back and share your exact mods and Dyno sheet for comparison to see if you’re still in the same ballpark for power on the factory plugs.

If E85 runs cooler, would u not want a hotter plug?

 

[NGOT8R]

If E85 runs cooler, would u not want a hotter plug?

A hotter plug will increase the risk of detonation. In my case, I actually have 6* of timing pulled for nitrous, but timing is also added back in on the E85 tunes and it still runs great. It’s always better to play it safe than sorry. I’d leave power on the table any day over risking engine reliability.

 

[kellyreno]

A hotter plug will increase the risk of detonation. In my case, I actually have 6* of timing pulled for nitrous, but timing is also added back in on the E85 tunes and it still runs great. It’s always better to play it safe than sorry. I’d leave power on the table any day over risking engine reliability.

Makes sense

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