hey which spark plugs

[mr2v63vz]

Hey if you had my car what spark plugs would you have in?
91 turbo jdm 3vz fe...

[Jason.MZW20]

Originally Posted by mr2v63vz

Hey if you had my car what spark plugs would you have in?
91 turbo jdm 3vz fe...

Denso SK20PR-A8s. 0.032" gap.

[mr2v63vz]

i love how specific that is idk crap about spark plugs thats what im going with thank you

[mr2v63vz]

so these are mercedes recomended sp just curious what about these is desirable in my motor?

[Jason.MZW20]

Sorry, I misread your post. Use the IQ20s, as those are for the 3VZ.

I saw 91 turbo.

[mr2v63vz]

ha ok thank you

[RandomHero]

Originally Posted by Jason.MZW20

Sorry, I misread your post. Use the IQ20s, as those are for the 3VZ.

I saw 91 turbo.

so these would be best in a NA 3vz?

i really dont want to ever have to change them again. that back bank seems like no fun when the motor is in.

[mr2v63vz]

by back you mean closest to the trunk right? pain in the ass last time had toi remove the intake man and loosen the motor mounts and jack the motor up and tilt it forwards.....and even then theres no access so i agree if these are best then thats whats goin on cus god help me if i gotta replace them again soon...

[Levi_]

You can do it really easy without removing the intake mani, you just need an adjustable pivoting wrench.

I went with stock 3vz sparkplugs from Mr.T, don't see a reason why you would need to get anything else for a stockish 3vz.

[mr2v63vz]

yea the clearence is ridiculous though...

[Jason.MZW20]

Originally Posted by Levi_

You can do it really easy without removing the intake mani, you just need an adjustable pivoting wrench.

I went with stock 3vz sparkplugs from Mr.T, don't see a reason why you would need to get anything else for a stockish 3vz.

I used the IK20s in my mom's 2000 Camry 5SFE with wasted spark direct ignition. They lasted just under 120k miles even though the spark fires twice per cylinder (intake, exhaust) like the 1MZ. I changed her over to iridiums at 90k miles, and her engine started misfiring at around 208k miles. The problem? The ground electrode wore down. The iridium tip looked brand new.

The super long life SK20R11s would last even longer because the ground electrode has a platinum tip, but the IK20s surprised me with their long life. I'm not sure how long they'll last in a distributor based engine like the 3VZ with the IQ20s.

If you're wondering, Denso marks the thread pattern with the second letter. The 2VZ and 3VZFE were the last modern Toyota motors to use the Q thread pattern. Most Toyota engines I've seen these days use the Ks. Both the 3VZE and 5VZ use the Ks, which can cause some confusion.