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twr7cx
Fordmods - Getting Side Ways
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 Posted: Wed Feb 02, 2005 2:43 pm Post subject: Spark plugs |
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Anyone know the model/code number of what sprak plugs to use in an EF I6 duel fuel?
Parnell say to use spark plugs of a lower heat range, higher quality and qith a reduced gap by 10% of that used on petrol.
Also, those iridium or plantnum or what ever they are called ones that are ment to last for ages, are they worth me looking at? |
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madmax
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| Posted: Wed Feb 02, 2005 2:56 pm Post subject: |
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In my old Duel Fuel EA I used standard NGK BRE527Y-11. I heard mixed stories about heat ranges, some say a colder plug, others standard plug.
I tried both and never noticed any differance.
As for the Iiridium Plugs they are supposed to be the Ants pants, and last for ages, personnally I've never tried them, at something like $30ea I couldn't afford them. |
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unclewoja
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| Posted: Wed Feb 02, 2005 7:33 pm Post subject: |
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I use the irridium plugs in all my cars. They're great. I get them for about $12 each. They last 120,000km. They're supposed to give you more power and better economy (I've never seen teh results on a dyno though) I've worked it our and if they give you 1% better economy, you end up saving money over the life of the plug. They also give a micro-discharge every time they fire than blasts the carbon deposits off the plug.
I'd trust Mr Ford with the heat range. He's done the research and knows what's best.
Basically, you only need to chage the heat range if your plugs are fouling up or their electrodes are melting |
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Reddevil
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| Posted: Wed Feb 02, 2005 7:41 pm Post subject: Re: Spark plugs |
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| twr7cx wrote: | Anyone know the model/code number of what sprak plugs to use in an EF I6 duel fuel?
Parnell say to use spark plugs of a lower heat range, higher quality and qith a reduced gap by 10% of that used on petrol. |
Go colder plugs on a hot engine.
My car has Bosch W8LCR in them which is a little colder than the standard EL plug according to the bosch catalogue. Colder plugs cause the car to idle rougher on petrol tho.... |
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madmax
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| Posted: Wed Feb 02, 2005 7:51 pm Post subject: |
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Sorry EF plugs, I should read the post more clearly.
I only use NGK plugs
NGK BPR5EY-11 gap 1.1
NGK Iridium BPR5EIX-11 gap 1.1 |
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blackjack_original
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| Posted: Wed Feb 02, 2005 8:25 pm Post subject: |
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Can someone explain this colder hotter thing with the plugs...
Never heard of it untill recently. |
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twr7cx
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| Posted: Wed Feb 02, 2005 9:32 pm Post subject: |
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| unclewoja wrote: | | I'd trust Mr Ford with the heat range. He's done the research and knows what's best. |
My cars got an aftermarket L.P.G. system, so I don't think Mr. Ford did the research for that.
Will Iridium plugs work fine on L.P.G.? Anyone tried it? |
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tickford_6
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| Posted: Wed Feb 02, 2005 10:05 pm Post subject: |
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| twr7cx wrote: | | unclewoja wrote: | | I'd trust Mr Ford with the heat range. He's done the research and knows what's best. |
My cars got an aftermarket L.P.G. system, so I don't think Mr. Ford did the research for that.
Will Iridium plugs work fine on L.P.G.? Anyone tried it? |
LPG cars run a cooler plug.
just get one heat range cooler the factory petrol plug and you should be pretty spot on.
out of interest i runn very cold plugs on my XR6 (straight petrol)
the denso number is W20exu 11 the recommened is W16exu11
so mine are 2 heat ranges cooler and i've found my plugs are lasting longer and the car no longer pings under load at high RPM in 3rd gear. |
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taximan
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| Posted: Wed Feb 02, 2005 10:21 pm Post subject: |
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| Just use NGK ZGR 6B-11 same as XR6 specs.good cheap plug ideally suited to LPG.Should be able to pick up 6 for under $20.good for 50,000ks. |
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nicco
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| Posted: Wed Feb 02, 2005 11:23 pm Post subject: |
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Has anyone tried Bosch Super 4's on a petrol 6?
They are the flashy ones with four electrodes.
$55 or $60 for 6 |
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twr7cx
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| Posted: Thu Feb 03, 2005 1:20 am Post subject: |
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I'm interested in trying the Iridium options. A.F.A.I.K. I'm currently using the NGK Tickford plugs - think that's the code that I was given on FM1.
Just been going through teh NGK website, for normal EF 4L I6 they say:
| Quote: | Recommended Plug BPR5EY-11 1.1
Iridium Option BPR5EIX-11 1.1 |
For Tickford variant:
| Quote: | Recommended Plug ZGR6B-11 1.1
Iridium Option BPR6EIX-11 1.1 |
So the Tickford ones are a colder plug over the normal ones then? |
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unclewoja
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| Posted: Thu Feb 03, 2005 7:50 am Post subject: |
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| blackjack_original wrote: | Can someone explain this colder hotter thing with the plugs...
Never heard of it untill recently. |
The plug temp relates to how much heat is dissapated through the plug.
Obviously, the plug heats up when the engine's running because it's in direct contact with the air/fuel charge and the head.
A cooler plug dissapates heat quicker so the plug runs cooler. Vice versa for a hotter plug. |
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unclewoja
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| Posted: Thu Feb 03, 2005 7:57 am Post subject: |
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| tickford_6 wrote: | LPG cars run a cooler plug.
just get one heat range cooler the factory petrol plug and you should be pretty spot on.
out of interest i runn very cold plugs on my XR6 (straight petrol)
the denso number is W20exu 11 the recommened is W16exu11
so mine are 2 heat ranges cooler and i've found my plugs are lasting longer and the car no longer pings under load at high RPM in 3rd gear. |
Read this link http://www.circletrack.com/techarticles/40118/ and that will tell you why you're getting less detonation.
Given that a colder plug results in a slightly richer exhaust gas, your EGO sensor will be going nuts. |
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eagleaus
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| Posted: Thu Feb 03, 2005 10:29 am Post subject: |
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| For duel fuel, use XR6 plugs from any of the plug manufacturers |
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twr7cx
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| Posted: Thu Feb 03, 2005 11:11 am Post subject: |
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| So no one has tried the Iridium plugs on L.P.G.? I think I'm gunna try the Tickford NGK Iridiums. |
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tickford_6
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| Posted: Thu Feb 03, 2005 7:44 pm Post subject: |
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| unclewoja wrote: | | tickford_6 wrote: | LPG cars run a cooler plug.
just get one heat range cooler the factory petrol plug and you should be pretty spot on.
out of interest i runn very cold plugs on my XR6 (straight petrol)
the denso number is W20exu 11 the recommened is W16exu11
so mine are 2 heat ranges cooler and i've found my plugs are lasting longer and the car no longer pings under load at high RPM in 3rd gear. |
Read this link http://www.circletrack.com/techarticles/40118/ and that will tell you why you're getting less detonation.
Given that a colder plug results in a slightly richer exhaust gas, your EGO sensor will be going nuts. |
it was a good link. But given my line of work (I modify cars for living), it wasn't by chance that i used a cooler plug. If you know how to 'read' a plug it can tell you alot about your engine, it can also tell you if you're using the right plugs.
As you modify your engine the the plug needs to be changed as well.
on the EGO sensor part, at full throttle the EGO sensor is ignored by the ECU. and fixed fuel and spark maps are used. |
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opto
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| Posted: Thu Feb 03, 2005 8:42 pm Post subject: |
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Hey Nicco, Been running the bosch 4 electrode plugs in my ED 6 for 3 years approx 20,000 KMs and hasn't missed a beat, wouldn't know what the comparison is with normal plugs. Feels pretty good on acceleration tho.  |
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nicco
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| Posted: Thu Feb 03, 2005 8:51 pm Post subject: |
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| Thanks. Out of interest, i know money is the final marker, but what would be a good plug for better performance, without going mental cost wise? |
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andwoo83
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| Posted: Sun Feb 06, 2005 9:33 pm Post subject: |
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| iridium plugs are among the best you can get at the moment. Not sure what they are like on gas, never seen them running in a gas engine. As for the cost, do the maths. If you spend $20 a set on std plugs it is going to cost you around $60. Whereas, You can buy genuine iridium plugs for around 26-$28 each so there is a bit of a price difference there. Really it is 6 one half dozen the other when talking about performance from a plug point of view as there is going to be marginal difference in power output between different plugs, remembering of course that you must have the right heat range or you are going to have issues with power. |
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Daniel
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| Posted: Sun Feb 06, 2005 10:12 pm Post subject: |
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What would be the best* plugs to get for my fbt; coming up on 100,000 now i wish to replace them, i dont care if they last only 50,000kms instead of 100, i just want best performance out of them for now.
Any ideas/opinions? |
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