mark a

i have a 2002 camaro z28 it has a texas speed torquer v.2 cam a 3600 yank an a 100 shot it was tuned with tr55 spark plugs i want to change them to tr6 is this good idea or bad thanks mark.

streetassasin

iTrader: (30)

yes good idea, dont spray with the tr55's

SS1875

iTrader: (34)

LS1 Stock and AFR
Thread – 14mm
Reach - .708”
Socket – 5/8 hex
Seat - Taper
Stock Heat Range: 5
Gap: .060
Plug: NGK TR55 (stock number 3951); NGK TR55IX (stock number 7164); Autolite 764; Denso IT-16 (stock number 5325)

Nitrous (one step colder)
Heat Range: 6
Gap: .035 - .038
Plug: NGK TR6 (stock number 4177); NGK TR6IX (stock number 3689); Autolite 103; Denso IT-20 (stock number 5326)

Nitrous (two steps colder)
Heat Range: 7
Gap: Consult
Plug: NGK BR7EF (stock number 3346); NGK TR7IX (stock number 3690); Autolite AR94; Denso IT22 (stock number 5327)

Nitrous (two and a half steps colder)
Heat Range: 8
Gap: Consult
Plug: NGK R5724-8 (stock number 7317); NGK TR8IX (part number 3691); Denso IT-24 (stock number 5328)

Nitrous (three steps colder)
Heat Range: 9
Gap: Consult
Plug: NGK R5724-9 (stock number 7891); Autolite AR93; Denso IT-27

Nitrous (four steps colder)
Heat Range: 10
Gap: Consult
Plug: NGK R5724-10 (stock number 7993); Autolite AR92

BriancWS6

iTrader: (18)

I have been running the TR6 since only bolt-ons. You don't get any less spark or energy from a colder plug, it just pulls the heat from the combustion chamber faster than a hotter heat range from the design of the plug itself (how far the porcelain goes down the center electrode).