what's the biggest shot you guys think is safe for using TR6 plugs? assuming running race gas and timing retard etc. when is it necessary to go colder...

 

I've used a 300 shot with with TR-6s. Seen quite a few 250 shots and countless 100 and 150 shots.

A 300 shot can work with those plugs. Question is - are your pistons, tranny, and rearend up for it???

 

actaully my motor would yawn at a 300 shot... my motor was thinking more along the lines of a 400 shot

hehehe thanks

 

On the LS1tech board a guy was talking about TR-8's for the 200 + shots.

 

I'de go colder. If you're too lazy to change your plugs for a nitrous run from normally driving then, I guess iwould work. Only one way to tell and thats look at them after you try it out.

 

TR8's huh. Wonder how those would work out all N/A?

 

tr6's are good to about 200,sure you could go higher,but why risk it?

at least a tr8 is recommended by a few nitrous guys (Steve Johnson,Jon Phillips) for 200-300 shots and they suggested a colder plug for anything bigger.

NA power shouldnt be much of a concern when you plan on going with a big 400 shot,as everything should be biased for nitrous anyway.

 

I am using plugs with an "11" heat range and don't have problems with fouling, so I think you can go way colder than a TR6 without a problem. There is nothing special about my igntion system. Opti, MSD6, Accel coil, stock wires.

Rich Krause

 

So what is the PN# for TR8's? I can't seem to find them on the NGK website..

 

So what was the consensus for running that cold of a plug N/A, is it a bad thing, or not a problem with a good ignition system? Planning on running 250-300 and totally forgot about plugs, dont want to change them out constantly.