Thread: Pulstar Iridium Spark Plugs

All i got done with the vehicle right now is K&N Air Intake. When I get these plugs I'm gonna get MSD Wires as well. After that, most likely that only other mod will be a increased downpipe and High Flow Cat. I talked to my mechanic about the Pulstar plugs and he said that he installed some in his vechile and they noticibably increased his MPG. But that is also in a mostly stock vehicle. I don't think these plugs would work very well for highly modified vehicles. As for Iridium, since the Stock Plugs in my car are Iridiums, and they've been in there for 93,000 miles, I'd say they last/work pretty well for stock situations.

Yes, overall the Irids are a much tougher metal. That is part of why they heat up more. I pulled the Irids out of my truck and replaced them at about 90K miles. it's notable to mention that while the plug lasts that long, the gap still spreads over time. Gap on my pickup was about double stock gap at 90K.

That'll be something else to consider if over a good amount of mileage you start to have issues, being charged the spark can get blown out if the gap is too large.

Knowing you said MSD wires, that's cool. Don't get the MSD coils though. Too many guys find that after about a year, high rpms show misfires and issues from them. Stockers seem to do much better and outlast them.

Originally Posted by BillBoost37

Yes, overall the Irids are a much tougher metal. That is part of why they heat up more. I pulled the Irids out of my truck and replaced them at about 90K miles. it's notable to mention that while the plug lasts that long, the gap still spreads over time. Gap on my pickup was about double stock gap at 90K.

That'll be something else to consider if over a good amount of mileage you start to have issues, being charged the spark can get blown out if the gap is too large.

Knowing you said MSD wires, that's cool. Don't get the MSD coils though. Too many guys find that after about a year, high rpms show misfires and issues from them. Stockers seem to do much better and outlast them.

Yeah, I've researched some about the MSD coils and found they apparently have less power to them than the stock coils. Plus, I've already painted my stock coils Red.

So I've had the MSD Wires & Pulstar Iridium Plugs for around 6,000 miles now. They work pretty good so far. At first, the engine had to crank over a few extra times to start, I think it was because the engine/computer wasn't used to the changes yet. I unplugged the battery and gave the computer a reset, within a few tanks of gas everything starts and performs very well. There seems to be a little bit of increase in HP, but the thing I've noticed the most is increase MPG, and decreased RPMs at cruising speed. Originally I had about 23.0 MPG average on the computer. Now it's about 23.7MPG and that number keeps increasing slowly as time goes on.

Originally Posted by UCF04GPGTPCompG

I've noticed the most is increase MPG, and decreased RPMs at cruising speed.

How do these plugs change your FDR?

Originally Posted by UCF04GPGTPCompG

So I've had the MSD Wires & Pulstar Iridium Plugs for around 6,000 miles now. They work pretty good so far. At first, the engine had to crank over a few extra times to start, I think it was because the engine/computer wasn't used to the changes yet. I unplugged the battery and gave the computer a reset, within a few tanks of gas everything starts and performs very well. There seems to be a little bit of increase in HP, but the thing I've noticed the most is increase MPG, and decreased RPMs at cruising speed. Originally I had about 23.0 MPG average on the computer. Now it's about 23.7MPG and that number keeps increasing slowly as time goes on.

Originally Posted by UCF04GPGTPCompG

All i got done with the vehicle right now is K&N Air Intake. When I get these plugs I'm gonna get MSD Wires as well. After that, most likely that only other mod will be a increased downpipe and High Flow Cat. I talked to my mechanic about the Pulstar plugs and he said that he installed some in his vechile and they noticibably increased his MPG. But that is also in a mostly stock vehicle. I don't think these plugs would work very well for highly modified vehicles. As for Iridium, since the Stock Plugs in my car are Iridiums, and they've been in there for 93,000 miles, I'd say they last/work pretty well for stock situations.

You said the PCM oh oh sorry, you said the "engine/computer" weren't used to the change? HAHA, I guess your engine has a brain now. But you contradicted yourself and sound like a complete idiot... You said it wasn't used to the changes, but then said your car has had iridiums it's whole life? The only way your FDR would be lower is if you are coasting... spark plugs have nothing to do with that unless maybe you had misfires before, which you speak nothing of. Infact nothing makes sense that you have been saying, unless you had a bunch of bad plugs beforehand and were compensating fr the lost power...OK...

Originally Posted by UCF04GPGTPCompG

I already do/have done all of those things, so this is only helping.

You "do done" all of those things? And you said that the plugs increased MPG's when you have no proof at all...you changed air filter etc....

Oh, and I see now iridium spark plugs are an "engine modification"... hmm I thought they were part of engine maintenance...

Originally Posted by SlowNA06

Personally, I'd check and re-gap an iridium plug at 50,000 miles - at 70k, mine were baaaarely out of gap, but my mileage was starting to hurt.

Cough cough...

Originally Posted by SlowNA06

Yeah?

Who pulls and checks the plugs on a vehicle that's running well? If there's something wrong that you can tell from plugs, plugs probably aren't your first indication.

Originally Posted by SlowNA06

If I can tell just as easily without busting out a wrench, why bother?

ALL CONTRADICTIONS...

Originally Posted by SlowNA06

Copper's melting point is lower than iridium's, yes. I guess you could get lucky and only ruin a spark plug if you set up your car wrong. I wouldn't bank on getting lucky with engine failures bad enough to vaporize copper.

Nobody said ANYTHING about vaporizing copper...

SlowNA06 is a complete A-HOLE in EVERY single thing he posts and has no idea what he is talking about.


I hate these spark plug threads... do what you want with them! Just don't make up **** saying it made your car better!