Upgraded Spark Plugs For Boost

[whooppee777]

I'm installing the blitz supercharger in less than 2 weeks, what spark plugs i should upgrade to?

I know nothing about spark plugs other than they ignite the compressed gas and air in the piston chamber. unless u have a diesel engine and u dont have spark plugs.

[BLAZINBLUEVITZ]

no clue but im hitting you up on xbox live..... andy

[whooppee777]

is this rocklandtoyota/IMPO andy or are you another blue yaris in NY whose name is Andy?

[blacksandiegovitz]

Just look at the heat range on the stock plug and go with a set of spark plugs that are 1 step colder

[whooppee777]

and the stock spark plug heat range would be...........

[cali yaris]

I will email you your installation manual and wiring guides, whooppee -- it will answer these questions....and give you something to do for the next two weeks... :rolleyes:

[whooppee777]

u actually e-mailed me one, and then my friend had it laminated and gave it a spiral bound spine. so im guessing the installation manual tells me what i should get?

[Tamago]

i switched from iridium to plain ol $1.99 copper plugs, 2 steps colder. no need to throw away $$ on iridium plugs..

[Tamago]

You can do that as well tamago, I just went with what was recommended by the manufacturer.

i'm in a different world too, with a lot more fuel being dumped into the engine.. i'll be switching back to Denso IK22's shortly, once i feel my a/f ratios are consistantly where i want them.

[CASTREX]

^^^

That is a common practice from people with high power turbo cars (Supras , Skylines)

They usually use cheap copper plugs for the tunning process as the usually will kill a bunch of plugs on their long dyno sessions. So there is no point on throwing expensive plugs in. The copper ones will perform almost the same as the higher priced IRIDIUMS... they just won't last long.

Once they are all set with their tune... they just replace the copper plugs with the Iridiums.

Another common advice is:

For forced induction applications, use either copper plugs or Iridium plugs. But nothing in between like platinum.