Ok, so along with a new cap and new rotor, I changed the plugs. The pictures are a 1 step colder NGK plug gapped to .030 on a 6psi turbocharged b16a. At the dyno, I had a bunch of misfires and I'm not sure if it's fixed... the car seems to pull a lot better, but feels like it needs tuning to reach it's maximum. These plugs have seen:

A 1-2 gear WOT run. Followed by a 3rd gear 3,000rpm pull to redline and that is it.

 

see how its white was it running lean?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Soccerking3000 &raquo;</TD></TR><TR><TD CLASS="quote">see how its white was it running lean?</TD></TR></TABLE>

It's pretty far from lean AFAIK...



This is the dyno for the settings the car is running right now.

 

you should be running 7's not sixes in a turbo car, BKR7's are what you should have but the gap is right. What kind of fuel management are you using, its a turbo car, your plug tips are gonna be a lil white, it wont run the same way as an NA car will, but a low"er" compression headgasket will also keep that from happening.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fastrunner &raquo;</TD></TR><TR><TD CLASS="quote">you should be running 7's not sixes in a turbo car, BKR7's are what you should have but the gap is right. What kind of fuel management are you using, its a turbo car, your plug tips are gonna be a lil white, it wont run the same way as an NA car will, but a low"er" compression headgasket will also keep that from happening.</TD></TR></TABLE>

I did have the 7's... two step colder is an overkill.

AFC plus 450's plus Walbro. Tried tuning with Uberdata but the car made no power with it since the ignition was all fucked.

I am just asking if that looks normal or not... I don't know what it's supposed to look like.

 

I don't see any pitting or cracking in the porcelain, so I'd say you're probably pretty fine. The black residue is good because it means you're getting a decent amount of fuel burn.

The only thing that might concern me is the side of the ground strap (thanks dude ) that seems to have some flaking. That's not completely abnormal, but I'd check all my other plugs to make sure it's not any worse on the others.


Modified by Archidictus at 12:30 PM 5/3/2005

 

yah looks normal, my plugs look like that but I do run 7's as most people, I think 6 is the stock, but I could be wrong.

 

Your plugs look good to me, as long as they are a nice tan.. my monitor is kinda messed up so its hard to tell the color.

 

Thanks guys. They actually look a bit more white than tan... I think I may need to retard the timing a couple degrees.

BTW, I think the 6's are one step colder, and the 7's are two step colder.

 

ngk is backwards going up a number mean going down in heat

 

6 is the stock heat range, 7 is the right choice. your car only made 150-160 hp?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by siblueg &raquo;</TD></TR><TR><TD CLASS="quote">6 is the stock heat range, 7 is the right choice. your car only made 150-160 hp?</TD></TR></TABLE>

Yep, I was having some major misfires up top and I think it had some major side effects... car makes no power past 5,000rpm. I need a better tune.

 

i see tiny specs on the porcelin...i hope its no aluminum.