Spark Plug Question

[yellow05gt]

If I have one step colder spark plugs in my car should I adjust my tune for them? I forgot to tell my tuner when I got my tune for my headers I also put these in. Will it effect anything or am I losing performance by not being tuned for them?

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[yellow05gt]

Anyone?

 

[Optimum Performance]

Running N/A on a street car? Do you plan on running nitrous? Different heat range plug is just for the operating environment, the combustion process is still the same.

 

[markmurfie]

Have you tried asking your tuner what they think? Personally I would swap them out for normal plugs unless you are planning on running nitrous, In which case definately talk to your tuner before then. I dont think theres anything you can gain from one step colder plugs in a tune sense, just benefits from when the engine is making more power that's all.

 

[yellow05gt]

I may be going twin turbo here in a little while and if not I will be going FI when I get back to the states in a year or so. It's a pretty lengthy process with BAMA to get answers and tune revisions and almost isn't worth the hastel. Would rather ask here and get a response faster.

 

[Optimum Performance]

Just pull them to see how they are. Hotter plug would be a better choice but I dont think you will see any issues.

 

[beefcake]

For na 0 benefit to running a colder plug. If anything. It'll make less power

 

[768mph]

Rule of thumb, every 100+ hp run one step colder plug.
If N/A and you fall into this catagory AND you're "Racecar" all the time, it would benefit.
If it's a DD, not too much of an issue.

 

[Terminator2]

For na 0 benefit to running a colder plug. If anything. It'll make less power

This unless nitrous or FI use stock heat range plugs.

 

[GSLSE20B]

I run 1 step colder than stock and .048 gap . Smoothed out my torque curve at 30 degrees advance from 2800-7000 rpm

 

[cbrtrx]

I run 1 step colder than stock and .048 gap . Smoothed out my torque curve at 30 degrees advance from 2800-7000 rpm

I've done the same and saw an improvement as well.

 

[yellow05gt]

I run 1 step colder than stock and .048 gap . Smoothed out my torque curve at 30 degrees advance from 2800-7000 rpm

Good to hear. I gapped mine around .050 all the way around. Unfortunately haven't had a chance to Dyno yet to see if it is good or bad.

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