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Discussion Starter #1
Got a set on order from a local motorsport place.
£8.40 each.
Are they any good & how does the price compare with the group buy?
 

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Eddie,
Got the model / part number? I use IQ24's. Good price though

Paul
 
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Discussion Starter #3
No i didn`t get it he`s just ordered them. Will let you know when iget em.
 
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Discussion Starter #6
Not sure if gin & tonic is included or not.
Part no. is SK16R11. Hopefullt its the right 1.
 

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Eddie,
IK16's are the right physical size, plug gaps are 1.1mm which is a bit on the large size

Paul
 
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Discussion Starter #8
Arse. I`ll give em a go. If they keep getting blown out i`ll close them up a bit & see what happens.
 

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best hope they dont have the 0.4mm electrode then. i cant find that out at the moment
 
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Discussion Starter #10
Eddie you can change the gap yourself , dont all plugs come @ 1.1 mm
 

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Nope, my IQ24's come gapped at 0.8mm with a 0.4mm electrode
 
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Discussion Starter #12
AHA
any way he can change the gap , the set of plats that we put in beachbums car had 0.4 electodes , so i think eddie will be ok.
feeler guages and a hammer eddie, ps dont hit 2 hard
 

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Eddie
Thats a part number for a toyota BTW

Paul
 

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typical, from what i can see on the denso site:

IK16 listed for the 2.0 IK20 for the RB25 and IQ20 for the RB26
 
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Discussion Starter #15
SK i presume this it the thread , which should be 14mm
16 if thats the heat range fine
R is just iso type " ie Resistor "
and the 11 is the gap
the depth ie in thread of the plug should be 19 mm
 
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Discussion Starter #16
AHA
then the heat range is wrong @ eddie
good work @ paul
 
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Discussion Starter #17
Have we all been looking at this? click

Theres a section in there somewhere that explains the code.
 

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There is a techie bit on that site I mentioned
www.spark-plugs.co.uk
I've got IQ20's in mine, I had to re-gap em to 0.8, my method is to hold the plug lightly and bang down on to a hard surface, but be gentle as if you go too far it's a bit of a job to open em up especially with that delicate little tip
 
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Discussion Starter #19
Think im gonna tell them bollocks & to get the ones Pauls got. Not gonna take any chances after reading this from AHAs link.............

Engine Modifications
You may need to change the heat range of your plug (indicated by the number in the middle of the NGK part code - e.g. BPR6ES to BPR7ES) if certain aspects of your engine have been modified to increase (or decrease) performance. A change of heat range is most commonly needed when increasing the engine's compression ratio. If the vehicle is turbo charged and has had a severe 'boost upgrade' (the turbo wastegate vacuum lines have been manipulated to allow a higher pressure to build up before release) you may also require a colder grade spark plug.

Changing heat ranges
It should be noted that putting a colder grade (higher number=colder grade, e.g. BPR5ES=hotter, BPR7ES=colder) of spark plug in an engine which doesn't require a colder grade may cause difficult cold starting, plug fouling and poor running at low revs. Using a hotter grade (lower number=hotter grade) than is required may be the cause of overheating, detonation and heat damage to both spark plug and combustion chamber components.
 
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