For those like me who don't want to spend $50 on TR7 Iridium spark plug changes.
AC Delco part # 41-602, 2 steps colder than stock, copper and $3.38 CDN a piece
These are the new number for the FR2LS plugs that jbodyho has mentioned in the past.
2000 Z24
200 hp, 230 lb/ft on 75 shot
14.396@96 mph
217 hp, 275 lb/ft on 90 shot
No track times yet
Shaun wrote:For those like me who don't want to spend $50 on TR7 Iridium spark plug changes.
AC Delco part # 41-602, 2 steps colder than stock, copper and $3.38 CDN a piece
These are the new number for the FR2LS plugs that jbodyho has mentioned in the past.
How about 3 steps cooler for the people using a little more n2o . . .
What's wrong with the NGK's we're all using that cost even less than that?
the ngk TR6 are fine for 75 shot or less. 2 steps colder is needed for the 100 -150 shot. 3 steps colder...
are u doing with that much n2o anyways?
Karo: Just called the parts guy. He said the old number FR1LS changes to FR2LS which changes to 41-602. I don't know how thats possible when they are supposed to be different heat ranges. Sorry I couldn't find out anything else. I'm now going to be extra watchful on the dyno and see what these plugs look like after the first pull compared to my TR6s.
Agent: I run a 100 shot(flywheel rated) so I wanted another step colder than TR6's. TR6's are fine for a 75 shot and I've even been using them with my 100 shot so far.
2000 Z24
200 hp, 230 lb/ft on 75 shot
14.396@96 mph
217 hp, 275 lb/ft on 90 shot
No track times yet
[quote=Karo (Car Customs)
How about 3 steps cooler for the people using a little more n2o . . .
He's got enough NOS in that thing to blow himself up...........PERIOD!
LMAO couldn't resist
What's the #'s for the Denzo Iridium plugs that are 2 steps colder? I bought some that fit the car, but the gap is smaller...or is that normal?
Failure is not failure if you learn from it
If i run those ac delco 2 step pluds what would teh gap be?
what is the length of this plug
1989 Turbo Trans Am #82, 2007 Cobalt SS G85
