06-18-2011, 01:43 AM
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#249
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Drives: 2010 2SS/RS IBM Black Polished
Join Date: Feb 2009
Location: Colorado
Posts: 2,106
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Quote:
Originally Posted by PQ
I just put TR6 plugs in the car a month ago. They were flush. Split tip but flush.
NGK 4177, TR6
Yup. I believe so. No load spinning can be hard on an engine. The sudden torque must be pretty violent.
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I just edited my post..sorry for the confusion.. What I really meant was that you moved up one temp range from stock...Original gm part 12621258 or AC Delco 41-110 were range 5 equivelents. Moving up one temp range would be good to about 525 crank hp on ls3 or 500 crank on l99...Obviously its important to check for fouling and run as cool of plug as you can.. No real harm comes from being too cool (other than it will foul quickly) but too hot can cause serious engine damage...Kind of an expensive trial and error process changing out 7 dollar plugs to find the right temp but in the long run well worth it. I am moving to the 8IX to see if they stay clean from the standard NGK part number 3346 plugs BR7EF plugs After only 3000 miles.
http://www.ngksparkplugs.com/product...x.asp?mode=nml
http://www.ngksparkplugs.com/product...x.asp?mode=nml
http://www.ngksparkplugs.com/product...r.asp?mode=nml
Look at the tips..huge difference..about 40 bucks more for a set though.
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418 Stroker, 621RWHP 648 lbs TORQUE Built by Laramie GM Auto Center Tuned by Nick at Mac Autosport. EForce SC, 2 3/4pulley,LPE dual fuel pump, JRE Twin fuel rail upgrade, posi clutch kit, RX oilcatch can and breather, Callies Compstar crankshaft and rods, Racing bearings, CP -13.8 race pistons, steel rings, Comp Cams X6 blower cam, Springs, HD timing chain and tensioner, Doug Thorley Tri Y LT headers, 89.7lb injectors, RPM rollbar, DSS1400 shafts, Simpson 5 pt harness, BMR Toe rods and trailing arms, led lights, RPM input and output shafts
Last edited by 2010 SS RS; 06-18-2011 at 01:57 AM.
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