what spark plugs?
#1
05-27-2009, 11:24 PM
what spark plugs?
i got a 2005 monte SS S/C with a 3.4 pulley.
friend said i should run colder spark plug.
whats best for my car?
friend said i should run colder spark plug.
whats best for my car?
#3
05-27-2009, 11:48 PM
yup just the pulley. before you say it I know "its not good to do that first." thats all i have been hearing latey lol. the pulley is on and it was a pain in the @$$ so its staying. im gonna just do the LIST of things ppl are telling me now
#6
05-28-2009, 11:23 PM
Chipped pistons give 7 more hp.
I gotta get on this!
In all seriousness......
Autolite 104's for a 3.4" pulley setup is what I've always heard recommended.
You can use the equivalent NGK's if you like also.
-Riggs.
#7
05-29-2009, 01:48 AM
Join Date: Aug 2008
Location: over here
Posts: 2,810
found this on 3800performance site.
A general guideline for which spark plug heat range is right for your modified supercharged vehicle, are as followed:
- Use AutoLite 605's (one heat range colder) if your car is similarily modded like this: has a 3.40” supercharger pulley, CAI (cold air induction) setup, and a lower-temp thermostat.
- Use AutoLite 104's (two heat ranges colder) if your car is similarily modded like this: has a 3.25” supercharger pulley, 1.80:1 or 1.90:1 rocker arms or very mild cam, CAI setup, lower-temp thermostat, exhaust headers, cat-back exhaust system, and reprogrammed PCM.
- Use AutoLite 103's (three heat ranges colder) if your car is similarily modded like this: has a 3.0” supercharger pulley, 1.90:1 rocker arms or aggressive cam, CAI setup, lower-temp thermostat, exhaust headers, cat-back exhaust system, port and polished supercharger housing and/or throttle body, and reprogrammed PCM.
It is recommended that you set the gap on these to .055”-.057”.
A general guideline for which spark plug heat range is right for your modified supercharged vehicle, are as followed:
- Use AutoLite 605's (one heat range colder) if your car is similarily modded like this: has a 3.40” supercharger pulley, CAI (cold air induction) setup, and a lower-temp thermostat.
- Use AutoLite 104's (two heat ranges colder) if your car is similarily modded like this: has a 3.25” supercharger pulley, 1.80:1 or 1.90:1 rocker arms or very mild cam, CAI setup, lower-temp thermostat, exhaust headers, cat-back exhaust system, and reprogrammed PCM.
- Use AutoLite 103's (three heat ranges colder) if your car is similarily modded like this: has a 3.0” supercharger pulley, 1.90:1 rocker arms or aggressive cam, CAI setup, lower-temp thermostat, exhaust headers, cat-back exhaust system, port and polished supercharger housing and/or throttle body, and reprogrammed PCM.
It is recommended that you set the gap on these to .055”-.057”.
#8
05-30-2009, 01:54 AM
- Use AutoLite 605's (one heat range colder) if your car is similarily modded like this: has a 3.40” supercharger pulley, CAI (cold air induction) setup, and a lower-temp thermostat.
Either way, the 605's or 104's will work.
The 605's are one heat range colder than stock plugs, 104's are two heat ranges colder. Other than the heat range they are the same plugs. Same price, etc.
-Riggs.
