is bosch platnum plugs any good to use in a lsvtec???i was wondering cuz some people say there good and some say not...what u think??

 

for the same price you can get some ngks, if not cheaper

 

And it won't misfire with the NGKs either...

 

dont go for platinums. platinum plugs are only for long life and are believd to be a little more fuel efficient.

my personal experiece.. STOCK PLUGS are the BEST PLUGS. n r cheap too

 

Keep in mind that some of the stock plugs are platinum. I'm just against the Bosch platinums.

 

the plugs are for a lsvtec...what plugs do i use???i can only get ngk plugs at honda and ther like 28$ a peice...and the boches are only 8$ for a pair.????

 

woooo.. lucky i am.. we got ngks for like a dollar 25 per piece.
and set goes for 5 dollars

 

Ah, but Mr. Z6 Man, if you had a B $eries, you'd be getting platinums like the rest of us. Remember the conversion to canadian dollars as well, $28 CAD is "only" $22 US.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by snowbunny &raquo;</TD></TR><TR><TD CLASS="quote">the plugs are for a lsvtec...what plugs do i use???i can only get ngk plugs at honda and ther like 28$ a peice...and the boches are only 8$ for a pair.????</TD></TR></TABLE>

NGK BKR7-E11 For a high compression app.
NGK BKR6-E11 For stock compression

About $6 total.

 

is them plugs for a dohc vtec?????

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by snowbunny &raquo;</TD></TR><TR><TD CLASS="quote">is them plugs for a dohc vtec?????</TD></TR></TABLE>

Sure are

 

well let me put it this way.... no offence but platinums are usually and mostly used by ricers. read up on the characterstics and compare copper with platinum.. depends on how u use the plug.

5 US$ for a set of 4 NGKs

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by acidz_z6 &raquo;</TD></TR><TR><TD CLASS="quote">used by ricers</TD></TR></TABLE>

So in that case, Honda = ricer? Please explain your reasoning.

 

no its not that at all dude.. honda as a car manufacturer would would longer tune up intervals, hence the platinums.

Though long-life platinum plugs cost more than standard spark plugs, OEMs use them because they reduce the risk of misfire (which helps protect the catalytic converter) and they reduce the need for maintenance — which allows them to offer longer "tuneup" intervals.

they were developed in the first place was to create a plug that could go for 50,000 miles or more in normal use without eroding down to nothing. One of the first applications for platinum plugs in OEM service was the original Toyota minivan. The mid-engine layout meant that a plug change required dropping the engine and transmission, so long intervals between tune-ups were pretty important.

As a matter of fact, platinum is one of the worst conductors. The reason why platinum spark plugs are used is for longevity only. Platinum spark plugs can last up to 100,000 miles. If you are looking for longevity, platinum is for you. If you are looking for performance, choose copper or even better silver

Stick with copper, unless you have some horrible aversion to changing your plugs.

All the so-called gains everyone feels with other plugs is simply because their old plugs were in bad shape.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by acidz_z6 &raquo;</TD></TR><TR><TD CLASS="quote">As a matter of fact, platinum is one of the worst conductors.</TD></TR></TABLE>

This is true, but copper by itself is also a bad conductor, around 6 times worse than platinum. Copper alloys have an extremely low resistance, and I'm willing to bet they use a platinum alloy in plugs as well, otherwise they probably wouldn't work at all.

I understand the use for longevity, I didn't know the main purpose was for the Toyota Previa. My observations have been that a Honda with the wrong plugs usually has at least a little misfire, and worse emmisions.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by acidz_z6 &raquo;</TD></TR><TR><TD CLASS="quote">All the so-called gains everyone feels with other plugs is simply because their old plugs were in bad shape.</TD></TR></TABLE>

I agree 100%. Same goes for a lot of products: plug wires, ground wire kits, etc.

I hope you didn't get the idea that I was picking a fight, I just wanted to hear your take on it.

 

in any case, Bosch spark plugs suck bad. I had them for 2 days and they started missfiring again. I have Denso plugs for now since I couldnt find any NGK's anywhere cept online. So untill my NGK Iridiums come in I have to use the Denso ones. And they are working for now but I find the NGK's to have better preformance and last longer than Bosch by a long shot. Just my personal experience

 

I'm a believer of this:

Bosch= European cars

NGK= Japanese cars

Champion= American cars

 

$28 a peice for NGK plugs!! i just bought a set(all four) for less than $10. you could get the iridium plugs for like $60-70. i dont know if they are as good as they are made to be tho.

if nothing else, you could get someone here to get a set for you, ship them, and still save money.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by drdisco69 &raquo;</TD></TR><TR><TD CLASS="quote">

This is true, but copper by itself is also a bad conductor, around 6 times worse than platinum. Copper alloys have an extremely low resistance, and I'm willing to bet they use a platinum alloy in plugs as well, otherwise they probably wouldn't work at all. </TD></TR></TABLE>

how do u relate low resistance with bad conductivity. resistance is directly related to temperature. it goes up with heat. and one of the main function of a spark plug is to dissipate heat from the combustion chamber. for this reason copper core is the best. and yeh copper plugs are not juz pure 100% copper. they ve a bit of nickle too. its there to minimize gap erosion.
THE LESS THE RESISTANCE = MORE CONDUCTIVE THE METAL (BOTH WAYS: ELECTRICAL AND THERMAL)

still i wud be glad if u cud post some results showin that copper is SIX (6) times worse than platinum


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by drdisco69 &raquo;</TD></TR><TR><TD CLASS="quote">

I hope you didn't get the idea that I was picking a fight, I just wanted to hear your take on it. </TD></TR></TABLE>


hahahaha... disco doc.... its all gud. Ezzzzzzz now ve some mercy on me am NEW HERE hahahaha


Modified by acidz_z6 at 10:23 PM 3/3/2005


Modified by acidz_z6 at 10:26 PM 3/3/2005

 

Doh, reading pwnz me. I was looking at the conductivity instead of the resistivity. You are correct, copper is more conductive (less resistive) that platinum by about a factor of 6. They both obviously have extrememly low resistance, especially when you consider how short the conductor in a spark plug is, but plain ol' copper wins it.

You're right about the conduction of heat, as well. Copper has a specific heat of 385 J/kg*K while platinum is about a third of that, 130 J/kg*K.

 

wooo woo woo.. dude ure my first convince here.

 

Heat capacity isn't the same thing as thermal conductivity. For transient thermal stuff they're both important.

Cu conductivity = 385 W/mK
Pt conductivity = 69 W/mK

Not only that, the electrodes in Pt plugs are usually much thinner than those in Cu plugs. They can adjust dimensions of the electrodes to achieve the same heat range, otherwise they'd have to call it a different heat-range plug...

But really I think Pt is used for corrosion rates. They use it so they can advertise you don't touch the engine for 100k miles. And if you have to pay a mechanic to change your plugs Pt is probably worth it.