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Which spark plugs ? 

 

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 Post subject: Which spark plugs ?
Posted: Sat Jul 15, 2006 3:31 pm 
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I would like to know please, the best spark plugs (Brand and heat range) to use in an EL XR6. It is stock apart from extractors, 2.5 system and K&N air filter.
Thanks
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Posted: Sat Jul 15, 2006 3:52 pm 
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 Post subject: Re: Which spark plugs ?
Posted: Sat Jul 15, 2006 4:51 pm 
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nicebus wrote:
I would like to know please, the best spark plugs (Brand and heat range) to use in an EL XR6. It is stock apart from extractors, 2.5 system and K&N air filter.
Thanks


what ever is the stock XR6 plug.
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Posted: Sat Jul 15, 2006 5:05 pm 
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There is a great article that was in Street Machine which had the following to say:

After trying all sorts of spark plugs (all of which caused detonation), (AN AFTERMARKET COMPANY) finally settled on a particular Autolite plug. Originally these plugs were shipped to them by mistake and, as it happened, they worked! Screwing them in saw an instant 4kW gain. According to (A PERSON THAT WORKS FOR THIS COMPANY), "using the right plugs is like adding a couple of extra degrees of timing without actually doing it."

Low-impedance leads are also important, with (AN AFTERMARKET COMPANY) exclusively using a Champion version.
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Posted: Sat Jul 15, 2006 6:09 pm 
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does anyone know what the equivialant iridium plug would be for a standard el?

 

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Posted: Sat Jul 15, 2006 6:20 pm 
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downingj wrote:
There is a great article that was in Street Machine which had the following to say:

After trying all sorts of spark plugs (all of which caused detonation), (AN AFTERMARKET COMPANY) finally settled on a particular Autolite plug. Originally these plugs were shipped to them by mistake and, as it happened, they worked! Screwing them in saw an instant 4kW gain. According to (A PERSON THAT WORKS FOR THIS COMPANY), "using the right plugs is like adding a couple of extra degrees of timing without actually doing it."

Low-impedance leads are also important, with (AN AFTERMARKET COMPANY) exclusively using a Champion version.




we all know about the JMM plugs, they are a cheap $3 autolite plug you can get from MTQ the part number is 985, i have used them and to be honest they caused detonation. went back to stock plugs and all is fine now
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Posted: Sat Jul 15, 2006 6:32 pm 
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fiftyone wrote:
does anyone know what the equivialant iridium plug would be for a standard el?


NGK BPR6EIX-11

 

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Posted: Sat Jul 15, 2006 6:51 pm 
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whos MTQ?

 

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Posted: Sat Jul 15, 2006 6:58 pm 
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tickford_6 wrote:
downingj wrote:
There is a great article that was in Street Machine which had the following to say:

After trying all sorts of spark plugs (all of which caused detonation), (AN AFTERMARKET COMPANY) finally settled on a particular Autolite plug. Originally these plugs were shipped to them by mistake and, as it happened, they worked! Screwing them in saw an instant 4kW gain. According to (A PERSON THAT WORKS FOR THIS COMPANY), "using the right plugs is like adding a couple of extra degrees of timing without actually doing it."

Low-impedance leads are also important, with (AN AFTERMARKET COMPANY) exclusively using a Champion version.




we all know about the JMM plugs, they are a cheap $3 autolite plug you can get from MTQ the part number is 985, i have used them and to be honest they caused detonation. went back to stock plugs and all is fine now


Great. That's handy to know for anyone wanting to get them at a good price. Thanks mate.

So you would recommend going back to the standard XR6 plug? They obviously gave you a better result?
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Posted: Sat Jul 15, 2006 7:10 pm 
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I just fitted a set of 6 "Bosch Super 4" to my 3.9. What are people opinions on these?

 

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Posted: Sat Jul 15, 2006 7:14 pm 
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fordzatmyplace wrote:
I just fitted a set of 6 "Bosch Super 4" to my 3.9. What are people opinions on these?


They're s**t!!! :wink:
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Posted: Sat Jul 15, 2006 8:00 pm 
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downingj wrote:
fordzatmyplace wrote:
I just fitted a set of 6 "Bosch Super 4" to my 3.9. What are people opinions on these?


They're s**t!!! :wink:


your memory is s**t :wink:

Thats your excuse for not coming on the cruise :P

So why should I believe what you say :wink:

 

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Posted: Sun Jul 16, 2006 9:47 am 
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downingj wrote:
tickford_6 wrote:
downingj wrote:
There is a great article that was in Street Machine which had the following to say:

After trying all sorts of spark plugs (all of which caused detonation), (AN AFTERMARKET COMPANY) finally settled on a particular Autolite plug. Originally these plugs were shipped to them by mistake and, as it happened, they worked! Screwing them in saw an instant 4kW gain. According to (A PERSON THAT WORKS FOR THIS COMPANY), "using the right plugs is like adding a couple of extra degrees of timing without actually doing it."

Low-impedance leads are also important, with (AN AFTERMARKET COMPANY) exclusively using a Champion version.




we all know about the JMM plugs, they are a cheap $3 autolite plug you can get from MTQ the part number is 985, i have used them and to be honest they caused detonation. went back to stock plugs and all is fine now


Great. That's handy to know for anyone wanting to get them at a good price. Thanks mate.

So you would recommend going back to the standard XR6 plug? They obviously gave you a better result?


i found no power difference at all. just that the autolite plugs caused detonation and the stock XR6 plugs didn't. may be a different story in someone els' engine
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Posted: Sun Jul 16, 2006 10:26 am 
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Mhgill wrote:
whos MTQ?


www.mtqes.com.au
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Posted: Sun Jul 16, 2006 1:53 pm 
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madmax wrote:
NGK ZGR6B-11


whs ^^^^

 

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