Spark Plugs - Toyota Nation Forum : Toyota Car and Truck Forums

93turbomr2 · 09-07-2004, 08:27 PM

what is the gap for the ngk 6097 plugs.i am sure they come pre gapped but will check them before installation.

JekylandHyde · 09-07-2004, 08:38 PM

They are not pre-gapped.
Correct gap will depend on your mods ... what are they?

OEM gap is .031"
If you are running healthy boost (15 psi or so) I would go to .028"
If you are crazy (like me) and are pushing 23 psi out ofa T3T4 go with .025"

93turbomr2 · 09-07-2004, 08:43 PM

right now all i have is a boost controller, and air intake.i am running 15 psi

JekylandHyde · 09-07-2004, 08:55 PM

.030

91RED3S · 09-08-2004, 12:40 PM

how much do these plugs cost? and can i order them from autozone>?

93turbomr2 · 09-08-2004, 07:06 PM

ordered mine from advanced but you can get them from autozone to.they cost me $1.59 each.oh yes and boy am i glad i checked that gap.they were set at .25

arcasmachineracing · 09-08-2004, 08:09 PM

I just picked up some copper plugs, didn't notice much of a differance from the platinum plugs. Except now I get to buy plugs every oil change, woot.

JekylandHyde · 09-08-2004, 08:28 PM

91RED3S, the plugs are cheap less than $1.75/each.
I would recommend chanign them every 3000 miles or so.

93turbomr2, there is no way a plug had a 1/4 inch gap ... the tab would be proken off!

arcasmachineracing, were you expecting 40 HP from plugs?
Changing plugs every oil change? .... I hope you can find the courage to go on!

I've changed out my NGK copper plugs in Hyde at least 4 times this year and I only put on 4000 miles TOTAL.
Why do I change them so often? ... because I race at the limit, because I like to know I have good fresh plugs in there and at 23.5 psi of boost on a 199,000 mile engine I like knowing that

What's the big deal? $7 worth of plugs and 15 minutes to swap them out.

If you have a mildly modded car and your more interested in longevity (of the plug) than optimal performance, there is no harm in using the platinum plugs (just avoid the Bosch platinums).

93turbomr2 · 09-08-2004, 11:20 PM

hmmm....not sure but when i used my spark plug gapper they were tight up to 25 and i did what you said and gapped at 30.

***MRQtwinturbo*** · 09-09-2004, 07:22 AM

i change my plugs regularly also....every spring when the car comes out of storage and/or every tuning session......

JekylandHyde · 09-09-2004, 10:32 AM

93turbomr2, that is .025" ... not .25"

.25" = 1/4 inch ... that would be a huge gap!