94camarof1

what's everybody with LT1's running for spark plugs with spray?

Thanks

00Z-28-LT1

iTrader: (1)

i have ngk-tr6

monster7

iTrader: (1)

you can run autolite 104's also

chevy94c

I have used both auto lite 104 and NGK TR6.

platniumta

autolite 104 or ngk tr6-- used both but prefer ngks

Vendetta

I ran TR6s with my blower and was very happy with them.

00Z-28-LT1

iTrader: (1)

i might add that i have 12.5-1 compression as well and drive on the street with the tr6 plugs, nitrous is assisted with race fuel though

TWS

iTrader: (63)

I ran NGK TR6's in my '94 but rarely sprayed. The few times I did they worked great. I have TR55's in there now as I want to sell the motor and will not spray it again.

travie319

iTrader: (1)

autolite 104's great plug and cheap..... especially when you have to change them every other bottle!!!!!

buffman

iTrader: (9)

I would have thought the 103s are better for Nitrous. The 104 IIRC is more or less for the stock heat range? But maybe that's on a b-body only.
Matt

monster7

iTrader: (1)

on an f body lt1 the 104 is 2 stages colder than stock

i believe

Frans96SS

iTrader: (15)

hands down the best plug for an lt1 with nitrous is an AC delco R42LTS....tr6's foul out too easy

Nostang

iTrader: (4)

ACD R42LTS...cheap and can get them anywhere

monster7

iTrader: (1)

what heat range are the r42lts is it the same heat range as the 104'
im lookin for a different plug i dont spray but i run a colder plug cause i have around 11.3:1 cr i may change to 105 or something im not sure yet just lookin at some options and i like the delco plugs

97M6Formula

iTrader: (6)

Id say since youre running that much compression too that you should get two steps colder which would be a tr7(ngk) or a autolite 103.. Ive run both and found that the ngks foul easier but thats just me

Nostang

iTrader: (4)

I run 11.5-1 comp and a 200 shot on top of it and run the r42lts plugs. They do not foul and work well on the bottle.

dhdenney

iTrader: (53)

I'm pretty sure the 104 is one step colder than stock. 106's are stock heat range.