Well i finally got the turbo all installed and got the car running, rough but running, now it will get tuned hopefully before the week is out, now i was wondering if anyone could tell what spark plugs to go with, because i know u have to run colder plugs but what are some good plugs to run on our cars once they are boosted, its a 95 2.3 cav thanks


if it can't win a race it better win a show

TR6'S Gaped at .035

Its not a LD9... 2.3's need the washer.


Go 2 heat ranges colder atleast,

( I went 4 )

Chris


'02 Z-24 Supercharged
13.7 @102.45 MPH Third Place, 2007 GMSC Bash SOLD AS OF 01MAR08

so should i still use the TR6's and who makes those, and what washer are u talking about, also what is the advantage to going more than 2 ranges colder, and should i still gap them at .035


if it can't win a race it better win a show

TR6s are NGK i believe .035 is a nice tight gap that would be an excelent choice if you can get iridium TR6s those would be the best since they have a sharp point on the end and very good spark but 99% of people who gap them fawk them up very hard to gap not like copper or platinum TR6s



JBO since July 30, 2001

so i should go with ngk tr6 iridiums gapped at .035 right? just making sure i got it all lol, they may come pregapped, so do i just grab any tr6's and just gap them myself


if it can't win a race it better win a show

I put the TR65IX in my LD9 (wish I went 2 steps colder now that I have them in) anyways, I'm not sure what they came with out of the box but I think around .06 (or something close to that). I had mine gapped to .03. Not sure if that will help me at all but I will find out tomorrow when I get on the dyno.

I have a set of brand new NGKs that have never been used...


I think....



2004 Turbo cavalier 11PSI and blown!

i went to a few autoparts stores yesterday trying to find ngk tr6's and no one seemed to have them, not even a part number for them, they all had tr5 and platinum, iridium, and copper, but not a tr6, could anyone give me a part number, or tell me what type of material i should be looking for. Also the car is all done getting the turbo installed, but it is not tuned, but it does run, it has a rough idle though, it idles around 1400, my question is would it be safe enough to drive as long as i keep the rpm's low, i just want to get it out of the shop for now


if it can't win a race it better win a show

Stock is a FR3....

I ran a set of FR2... in the 12:1 2.3. They are used for a suzuki IIRC.

You can look for some FR1LS. I believe summit racing still have some.

Those are delco plugs btw.

41-603
41-602
41-601

FR3
FR2
FR1


Gilles
2.3 Ho

RockAuto.com sells your NGKs for a pretty low price. TR6'z in V-power and iridium. Just do part number search...

FYI...This may help you out too...http://www.kaila.net/tl125/tl125ngkcode.html

and this...http://www.sparkplugs.com/faqmain.asp?mfid=0

you will likely need 1 - 2 heat ranges colder = better to start too cold and foul your plugs than melt your pistons.

I have a 2000 LD9 so not sure if it is different but the stock number is what you are looking for...

The stock number for the TR65IX is #3692 (one step colder). I'm pretty sure 2 step colder would be a TR75IX but not 100% sure on that one.

IT'S A 2.3!!! not a 2.4


Gilles
2.3 Ho

I have a 95 2.3, and every site i look on i cant seem to find tr6 i only see the tr55's, also my other question is what material plug should i be using, iridium, platinum, or copper.


if it can't win a race it better win a show

People will probably have different opinions. I was told from someone not to use the iridium ones but I had them already in the car. They seem to be good for now. My last dyno pull with a few minutes of tuning with the new plugs I was able to go from 6-9 degreees of knock (with the mp45 kit plugs) to 0 degrees. So maybe they do work fine but my car isn't finished being tuned yet so its still early for me to say.

well i already have ngk iridium IX's in my car now, should i just leave them in or should i go with something different.


if it can't win a race it better win a show

Well I think you should be fine with those plugs. They seem to work fine with my mp45 setup. They are definatley better than stock. Not sure if there is much different between the different NGK plugs but the iridiums do seem to me the most expensive but that doesn't mean they are the best but they seem to work fine with my 7psi. They gave me a smooth dyno graph and cleared up my knock.

well when i started the car it seems to almost hold a steady idle but at 1400 rpm, but its not tuned, i was just wondering if there is another plug that would be safer/better. i had those plugs in before because they seemed to be better than platinum 4's before i installed the turbo. i guess i will keep them in for now and see how they work out, thanks for all the help, anymore suggestions are welcome


if it can't win a race it better win a show

go to spark-plugs.com as listed before above about 5 or 6 posts up - lots of good information on that site including heat range cross reference chart.

The iridium is the best for ignition of the flame due to the small tip and laser welded iridium precious metal - this is also means it takes less power to actually get the spark you need. I think you would be just fine with any platinum or copper plug - you just sacrifice life when you're using "racing" style plugs. They build these to purposely sacrifice life of the plug for performance - but who can't handle about $15.00 in plugs every 7k-10k miles or so. This is very evident in a motorcycle - worn out plugs will flood and you'll be down on power for sure. The same in your car, but a little less noticable unless they're really degraded.

Also, let me remind you that for every 50-100 hp in gain you need 1 step colder as stated by the experts. So in my opinion you should be at least 6's or 7's heat range in NGK Racing plugs. It's always better to start too cold and foul out some plugs than run too hot and melt your pistons or get all sorts of knock. When first tuning you will likely have a little rougher idle with the cold plug, but when actually running some rpm and load it should smooth out as it heats up.....

One more thing - for highly boosted or very high cylinder pressures the fine wire iridium may not last too long and a standard racing plug or V-power NGK should fare better. But most people run moderate compression and under 10 lbs of boost.

Edited 1 time(s). Last edited Tuesday, June 09, 2009 7:07 PM