Best spark plug choice for ls2/L92
That's a common recommendation. I am trying to find specs on the TR55, and cross reference to other spark plugs, for other options. Heat range info would be great.
The LS7 recommend TR6- but I'm not certain if head and combustion chamber design make a difference from the LS2.
Again, I am using this on a road race engine. Might need to run heat range colder.
The LS7 recommend TR6- but I'm not certain if head and combustion chamber design make a difference from the LS2.
Again, I am using this on a road race engine. Might need to run heat range colder.
see if this helps. Click "NGK" at the bottom and it has NGK's break down. For some reason that info didn't come with the pic I posted. http://www.ngk.com/sparkplug411.asp
Last edited by S1LV3R; Apr 7, 2007 at 11:19 AM.
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I think we are all in the right ballpark. Did get a hold of a tech rep at NGK.
The NGK plugs for LS engines starts with the TR5 or TR55. The next heat range colder is TR6, and after that TR7, and so on.
Iridiums, are suitable for racing.
Thanks for the input and charts from all.
The NGK plugs for LS engines starts with the TR5 or TR55. The next heat range colder is TR6, and after that TR7, and so on.
Iridiums, are suitable for racing.
Thanks for the input and charts from all.
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Verdad Gallardo More specs from the charts:
14mm, .708"(18mm) reach, 5/8" hex, tapered seat, resistor, projected tip spark plugs
Suitable NGK racing plugs are, in increasing coldness:
R5724-8
R5724-9
R5724-10
None of the NGK racing plugs have a heat range below 7, for perspective.
14mm, .708"(18mm) reach, 5/8" hex, tapered seat, resistor, projected tip spark plugs
Suitable NGK racing plugs are, in increasing coldness:
R5724-8
R5724-9
R5724-10
None of the NGK racing plugs have a heat range below 7, for perspective.
