Halo Plugs

[stewart591]

has anyone ever heard of halo plugs... they are supposed to be the best and I want to look into it more. does anyone have them installed or know someone who does?

[ONE_to_HATE]

i do!

[Dr Thunder]

I would highly recommend the NGK- V Power plugs.

They are cheap and have a very low resistance.

Excellent product IMO

[stewart591]

i didnt ask about ngk... halo plugs are said to be the best and i wanted to find out if this is true... check this out

http://www.haloplug.com/

[Dr Thunder]

Originally Posted by stewart591

i didnt ask about ngk... halo plugs are said to be the best and i wanted to find out if this is true... check this out

http://www.haloplug.com/

This idea of having a hole drilled above the electrode has been around since 1990.

See this link...

http://www.brightgreen.us/spark.htm

You can take a NGK-V Power plug, drill a hole using a #61 or .039 bit above the electrode and have the same (if not better) effect. They suggest gapping the plug at .030-.035

Basically, it causes the spark to fire more evenly and at a much higher velocity thus resulting in a cleaner more efficient spark.

The only catch to using NGK here is that you must drill the hole yourself (but you can buy them pre-drilled). But it isn't difficult if you have a drill press and some patience.

This will increase MPG but not by much. But then again, a little bit here and there will add up fast.

The best way to find out which plug would be better is to see which has the least ohms resistance.

Anything more than 5,000 ohms resistance is bad and will hurt MPG.

Brightgreen says that most "popular" plugs have 90,000 ohms.

This is bad because its wasting energy that could be used to create a more efficient spark. With a more efficient spark you have better MPG.

NGK has a very low resistance and therefore they are much better plugs than those higher priced plugs out there.

I would say give these a shot and test the ohms, then take a NGK-V power plug and drill the hole above the electrode and test it as well.

If the "Halo" plug more resistance then the NGK then the NGK is the better choice.

See the link provided for more details.

You can actually get the NGK's pre-drilled for roughly the same price as the Halo's.

All in all you can't go wrong either way. This method of having the "halo" or "hole" above the electrode has been proven to increase MPG.

So give these halo's a try and let us know what you think.

[ONE_to_HATE]

the halos .. you'll notice a difference within the first 3000 miles and after that; its just another plug. It'll eventually get back to the same white morning smoke, same mileage.

[spitfire123]

I installed the Halo Plugs last September in my Tacoma and gained a noticeable 14% increase in fuel economy right away. I noticed no decline in performance since then so I can't say the performance declines.

I ordered these plugs from www.greenplugs.com and received them well packed two days later via priority mail. Perhaps this is because they came from the Seattle area and I live in Bremerton, WA.

I am not saying these are the holy grail of performance plugs, but I can say that I recouped the cost of the plugs within a few months and now I pocket the rest of my savings.

[stewart591]

thanks for the replies guys

[Buurin]

I guess I can't drill the dual prong plugs used in my non-VVTi 1ZZ?

I got some #61 bits but they're meant for circuit boards. And the only drill press I got is a Dremel attachment - that means it's 5krpm minimum. Guess this won't work for me.

[stewart591]

the halo plugs arent expensive theyre 7.99 a plug the bosch iridiums are 12.99 a plug... i just dont know if its worth it

[MIC0417]

And the Denso Iridiums are 14.99+

Also Spitfire 123 looks suspiciously like a vender, 1 post about these spark plugs from a certain company

[stewart591]

agree