iradium plugs

I know tomseal6 uses them in his SRX and hasnt had any issues with them. Dont know if youll notice a gain or not. BR9EIX is the number youll want to run.
 
Yep,I started using them and they work well to.My color on them plugs are dead on also.tomseal himself also said he had been using them a couple of seasons with no problems .
 
there good plugs yes, just put a set in the wifes new van but @ $7ish a plug $46 a set(6) they better last 100,000 miles..

hey tom where you get your's for the x, how much?, are they pre-gaped .028 ish?
 
Just did 300 + k's on my 03 viper...ran great, it may be me, but I think it fires up easier too...
 
so that br9eix is a direct replacement for the br9ecs? because the br9ecs for the srx is supposedly more resistant to heat than the plain br9es, and i've heard lots of guys on this site say not to run the br9es in the srx cause on flat out runs they don't take the heat well enough. does this mean that the br9eix is more resistant to heat than the br9es cause i thought they were pretty much the same plug aside from the iridium electrode.
 
look on ebay for a seller named daveknowsdeals I got mine for 4.95 plus shipping last year from him. I got my 10's for my warrior from him cheap too. Maxdlx
 
Could you boys take a look, tell me what you think!

I just put on 500 + k's on these br9eix ngk's iridiums, what I need is your opinion on the colors, left to right is mag; ctr; pto...& if you can see my wash on the pistons...03 viper stock, everything engine & carb wise, clutched for trails...thanks...cheers
 
Last edited:
daman said:
so there pretty good @ resisting fouling?
Click to expand...


thats probably the best feature of the iridium plugs.

I run them on my purposely rich set EFI suzuki TL1000s, and I have yet to foul a plug since switching to the iridium version of the stock NGK plug. actually, I did gain throttle response vs new stock ngk normal plugs, and on the dyno, it was proven to gain a hp or so across the board. for like 8 bucks a plug, and only having 2 on my bike, it's beena great upgrade, since cahnging the plugs on the bike is not a super easy task. Its not hard, but something I would never want to try on the side of a road with the factory toolkit.

The dyno operator said a 1hp gain on a 1000cc 4 stroke bike is pretty common. I would assume that the same could be said for any motor, 2 stroke or 4 stroke, but I have yet to try an iridium on a 2 stroke.
 
I use the iridium ix's in my car (2.0 16v Mazda) and it was a total difference in smoothness of idle and response. Now I need to find someone who has these in stock around here so I can have them when I go up north and not have to stand in line up north.
 
blues: the coloring is right, but thats all I can see from the pics. would need upclose pics to really get some information.

To really analyze a plug theres a few contributing factors you need to observe, the ground strap should have a distinct burn edge, meaning it should be right around the curve, slightly discolored and wetter looking only sometimes.

The actual ceramic tapered cone inside should remain somewhat white, it will color like card board brown sometimes, this coloring has alot to do with the octane of the gas, various additves used and the oil used, octane boosters will actually color is a rusty metal color. Being perfect jetting will have a darker "smoke" ring about half the way down.

On the center electrode if you look at the surface of it it should be silver around the outside edge of it, and then darker in the center, this means you have a couple degrees safety margin if the temps drop, your still good, silver across the entrie electrode surface means your spot on for the exact temp your running at, no room for a temp drop before mr.squeeky visits most likely.

These 3 things all contribute to observing the correct plug coloring and then you also observe the piston wash on the piston. This is done by looking inside thru the spark plug hole and it should show small tiny clean wash marks on the piston fron the rear transfer ports, this is caused by the velocity and the curve of the rear ports, they actually go around a bend on the back of the cylinder.
 
Last edited:
SNOW, I wouldn't bother. More expensive plug for absolutely zero gains. Different application, but I put these in my Ford Escape and to make a long story short, worst plugs I've ever used in my life. Actually went through the 3 hour process to remove them and replace with regular NGK. FYI - on an Escape you have to remove the intake manifold to get at the back 3 plugs. That's how much I hated them.
 
Last edited:
Maybe Not?

If you look at any factory-issued NGK catalogue, you'll find that the ONLY recommended plug for the SRX is the BR9ECS. I was at the Performance Racing Industry show in Orlando about a month ago and approached the NGK booth. The guy I talked to in the booth directed me to another guy who said DO NOT run the Iridium BR9EIX.

Now, when I asked him why, his response was simply that NGK Corporate does not recommend their use in place of the BR9ECS. In my opinion, it wasn't a great reason, but a reason nonetheless.

I have in the past and will continue to use the BR9ECS plug, until NGK Corporate recommends the BR9EIX Iridium plug for the SRX.
 
Last edited:
Unless somebody shows me factual information that it is not good to run these plugs and why, I will be very content running them.

Alot of here and there say.

I have provided factual information on why they are good plugs to run in post #5. If you have negative feedback on this plug than you should state factual info on why they are so bad.
 
"I have provided factual information on why they are good plugs to run in post #5. If you have negative feedback on this plug than you should state factual info on why they are so bad."

Hi Tomseal. As my post clearly stated, I DON'T have factual information on why these plugs are so bad. Nor, did I say they were "so bad". I just stated that the BR9EIX plugs are not recommended in any factory-issued NGK catalogue. That's factual, and anyone on this board is free to look in those catalogues, where they will find the Iridium is NOT a recommended plug. I don't make the rules. I just follow them.

I am going by what the catalogue says and what a Corporate NGK representative told me at the PRI Show in Orlando. Again, I don't think they are bad plugs. They are just not recommended for the SRX. And until they are, I will not run them. In fact, the BR9EIX is no more recommended than the BR9ES. And how many people run the BR9ES plugs in an SRX? I'd hope not many, because there must be a reason those plugs are not recommended either.
 
Last edited:
You must log in or register to reply here.


Back
Top