View Full Version : nitrous spark plugs?

05-01-2012, 08:58 PM
hello does anyone know what heat range plugs on a ls1 for nitrous 100-150shot?

Frozen WS6
05-02-2012, 12:19 AM
BR7EF which is ngk#3346.

05-02-2012, 09:50 AM
do you know the heat range?

05-02-2012, 09:54 AM
BR7EF is a 7 heat range which the number 7 in the part description tells you.

05-02-2012, 01:26 PM
i think they are 2 heat ranges colder than stock

05-02-2012, 01:30 PM
Run a BR7EF like already mentioned. It is a non-projected plug which is suitable for nitrous/boost. Remember OP when in doubt run the colder plug.

05-02-2012, 01:58 PM
Ngk tr-6

Frozen WS6
05-02-2012, 03:43 PM
I ran a tr6 and went a full tenth slower. Ngk recommends one heat range colder for every 75hp of nitrous added. So with that being said. A 100 shot needs 2 ranges colder. Which is a 7 plug and a non projected tip.
I would Not recommend a tr6. It's to hot and will cause detonation.

05-02-2012, 07:35 PM
Ngk tr-6

Although I love and agree with your signature 100% I don't agree with that plug selection.


05-03-2012, 10:10 AM
BR7ef 3346's is where you need to be. As long as you haven't changed compression.

Bad N Black
05-03-2012, 01:17 PM
I'm running TR6 plugs.. I'm changing to ngk#3346... Is the plug gap still .038???

05-03-2012, 06:12 PM
Gap the 7's [ Stk# 3346 ] around 33-35

Bad N Black
05-04-2012, 01:07 PM
Thanks Chris