tepid1

That magnifying glass above isn't any good. You need the right tool to do the job.


This will actually allow you to see the base of the porcelin.

hussain-vtec

Thanks that post will be edited with the right tools and links too.

99siky

Getting ready to install my turbo setup on my factory B16A2 SI this week. I will definitely use this thread. Added to favorites. Refreshing and informative read. THANK YOU! I will be putting up a build thread here soon too.

hussain-vtec

Your welcome an good luck, wish you all the best in your build an life Too!

CrisFerio

Thank god i read this i had to go one stage colder

ralph11sec

i love this! i am also a big fan on spark plug analysis when doing tuning!

unfortunately, its very very difficult to read plugs in the track (burn out, too much idle time and running lean (engine break on stopping), it cleans the plug for me to get a good read on!

there are other articles on this like how to determine detonation using 10x magnifier, etc.

hussain-vtec

Good to hear that, i need a favor can you write about your Engine F/I or N/A & spark plug's your using before and after thanks in advance.

There is an articles links available in the first post below,
Thanks for stepping by ralph11sec.

New Link's

Reading Spark Plugs
(This applies to Naturally Aspirated as well as Nitrous Engines)
http://www.angelfire.com/fl4/pontiac...Readplugs.html

CrisFerio

Welcome. I'm running a 97 B20B P8R head its stock internally. Only upgrades 60mm TB, DC ceramic 4-1, usual short ram, and a stock B1 Im, besides that exedy lightweight flywheel and stage 1 clutch. I'm using a chip P72. I live in south Florida always hot basically humid hot climate and I do alot of highway driving. Thank to this I figured out I had a small detonation when idk. I always use chevron or BP 93 only. As soon as i went stage colder I felt the difference in then higher rpm from 3500 all the to red line 6500 has a way smoother operation. I went from ZFR5F-11 to ZFR6F-11 best choice so far

hussain-vtec

Thanks CrisFerio for posting your set-up, feel free to post new test pics of reading spark plugs any time by practicing you will reach anywhere.

94_BB1

Great information & very detailed.

CrisFerio

Its like everything you learn more everyday

hussain-vtec

Thanks.
Exactly.

CrisFerio

Great news I able to average my MPG with the new plugs combined I'm ranging around 26-28, Hwy I'm looking at about 30+. With the old plugs I was getting a rough 22-23 combined and 25 hwy. Once again thank you for sharing this info and knowlegde with all of us.

hussain-vtec

Your welcome.

crazes

this is awesome post. I added it to the prelude FAQ's for people to understand how to do this correctly and what to look for

0Janet@bisimoto

Very impressive!

v8killaz

when tuning timing at wot. can i just use one new plug. then take it out and clean the strap with like a metal brush and run it again and again.

Honda Bull

WELL ******* DONE!

OneBadTurboCRV

Anybody who has actually used that one knows it isn't good unless you are a cave (pitch black). The light is so weak, I tossed it in the trash the first time I used it. Not as fancy looking, but the Moroso one is much better...

hussain-vtec

Thanks all !

hussain-vtec

Did you read the whole post ?

hussain-vtec

Thanks for the info Bud!

v8killaz

now tell me is my timing correct or should i back off. i have a d16 20 psi and its pushing coolant(assume headlift)
everyone is saying back down on timing. and yes i know gap is too high. i threw one in and forgot to tighten the gap up. ngk 7's one quick pass. ill do more once i get a new headgasket and new set of arp. i think mine are just too old and stretching a bit.

hussain-vtec

Firs sorry for the delayed respond,
Second its a new set Spark plug so it will be tricky to read, but Where your Base timing at ?

Second the heat Rang is not clear to me in your posted photos i Think you
did this wot pass that is why it is not marked in the plug threaded side.

Third if your are tuning your car you should see and keep your Eye on the ECT and the IAT Temps they have to be same every pass on the same road to be on the right Track in tuning your Engine, lots of things you have pay attention for it.

Your plug gap will play a huge role in your map ignition timing, for Example if you motor tuned properly and lets say that you will fix a new set of Spark plug's, they should be the same heat range as the old one and gaped the same as well.

My advise is take it to Good tuner and ask him to guide you that is much better.

Hope that is serve you v8killaz !

ashb82

there is way to many people tuning there own car here for this to be a post on H-T.
I have been tuning my car at the track. my sohc non vtec went 7.0@103 1/8th on pump gas with out a dyno tune.i wanted to up the boost but it gets rich and i cant control the fuel. i dont see specs on the plugs but something is going on.