colder spark plugs

Reply Subscribe

Thread Tools

Search this Thread

Dec 12, 2006 | 02:43 PM

Timo

Thread Starter

Advanced

Joined: Dec 2006

Posts: 60

Likes: 1

From: Finland , 1995 LT-4 P-1SC

colder spark plugs

I have a 1995 LT1 mild modified. What you think, colder plugs (Example NGK TR6) or stock AC 41-906. Which is better? I have a 160 stat and Hypertech Programmer, 52 TB , Hooker SC, etc. Any power gains ?

Dec 12, 2006 | 10:28 PM

tjwong

Le Mans Master

Joined: Jan 2003

Posts: 8,596

Likes: 19

From: Portland Oregon

Quote:

Originally Posted by Timo

Stick with a NGK TR55 or its iridium equal. There is no sense going to a colder plug with your mods. I don't like the factory plugs only because they are a double platinum, and the little platinum discs (pucks) tend to fall off. Out of all the spark plug gimmicks, for example split-fire, now tri fire or what ever they call it now. The iridium type fine wire plugs actually makes for a hotter plasma spark to initiate the burn.
If you are experiencing some light detonation due to high chamber temperatures, then check the EGR system, if its ok then go with a colder plug such as the NGK TR6.

Dec 12, 2006 | 10:32 PM

Corvette0096

Race Director

Joined: Aug 2000

Posts: 11,506

Likes: 4

From: Vancouver,Wa.

I would see where the heat belt is on the plug you have now.

Reply Subscribe