FEOA Forums banner
1 - 8 of 8 Posts

·
Registered
Joined
·
1,545 Posts
Discussion Starter · #1 ·
Alright guys the last thing I need is plugs(I finally got my Spearco cooler) and I can start to rip and tear. Before I go and get a set of plugs I want some opinions. I have hear so many different things - Platinum is better than copper and vice versa. I know copper is a better conductor, but platinum lasts longer. Also how many steps colder do you need to go. I read somewhere a while back when I was getting into this you should go one step with every 80 HP you add with forced induction. If so I would only need one step. I am planning on running 8 psi with a target HP of around 160. What are you thoughts on this and what are you guys running that has worked for you?
 

·
Premium Member
Joined
·
8,421 Posts
Glad to see the project come together.

I run $1.28 Autolites XX43 I think, one step colder then the stock XX44 (just going off of memory).

You might have to run a smaller gap, but so far I just run'em with the gap they come with, and it runs fine for me.
 

·
Registered
Joined
·
1,545 Posts
Discussion Starter · #5 ·
Yeah I have been checking out the Cougar and Focus forums and a lot of debates have been had over what material plug is used in turbo applications. Mostly the debates are Platinum vs. Copper. Platinum users say they last longer, while copper users say they are better conductors and reduce hot spots inside the cylinder. I just wanted some other opintions and thoughts, as well as examples of what actually has worked well for others.

Jeff - I had a set of those in my hand and decided to wait and do a little more research, but I might end up going back for a set!! :lol: How long do they last? I heard a turbocharged car eats up copper plugs pretty fast.

Denis - you have any idea if they sell anything that would work on the 1.9/2.0? I don't know much about them.

Thanks guys!
 

·
Registered
Joined
·
1,545 Posts
Discussion Starter · #6 ·
Well - I called Accel, NGK, and Splitfire and they all say that the stock plug they make for the Excort 1.9 head is the coldest plug they make to fit the Escort head. Any other brands you guys can think of?? I still am trying to get a hold of Denso and ZEX.
 

·
Registered
Joined
·
1 Posts
well, i just installed my ngk's that are 2 steps colder than stock on my turbo'd BP... i am running 'bout 12psi on t28... runnin hella rich! and i think my performance was just redused to less than half by switching from factory plugs to the 2 steps colder. i am kinda wondering if the colder plugs aren't burning all the gas??? any ideas? oh..and for the platnum, irridium, copper thing... a friend of mine owns a mobile dyno and goes to alotta the bigger carshows and tunes all kindsa cars and he told me to just get regular cheap ngk's he has done alot of testing of the diff types of plugs in some of the high performance cars... turbo'd and N/A and he said that he hasn't ever seen consistent significant increase in performance or ne thing else with the "better" plugs...( platnum...copper...irridium...)
 

·
Registered
Joined
·
1,545 Posts
Discussion Starter · #8 ·
I went one step colder - I bought Denso Iridium IT22's. I read that one step colder is good for up to 100 added hp - any higher than that you need to go two steps colder. I will let you guys know how it works after I get the turbo in next week. I got the intercooler mounted and the e-manage and Profec E-01 almost wired up.
 
1 - 8 of 8 Posts
Top