EQT E-Tuning Q&A

[Diggs24]

Link doesn't work for me.

Works for everyone but you, same as last time. Look into it.

 

[ScozR]

https://gensportunited.com/need-colder-spark-plugs/

After reading that I think that I'll just go back to the stock heat range.

The article states that if the tuner recommends a colder plug, then listen to the tuner. I think thats important to point out since EQT recommends a colder plug for even stage 1.

 

[jimlloyd40]

Works for everyone but you, same as last time. Look into it.

Must be different ad blockers etc that I use. I'll keep those and just not comment if a link doesn't work for me.

 

[jimlloyd40]

I thout they were plutonium. But maybe they are ruthenium.

Only if you were planning on a nuclear explosion when your plugs fire.

 

[aaronc7]

NGK link not working for me either, any ideas?

 

[jimlloyd40]

The article states that if the tuner recommends a colder plug, then listen to the tuner. I think thats important to point out since EQT recommends a colder plug for even stage 1.

The article says right after that statement you copied that even for a car with full bolt ons you won't see any benefits so don't waste your time or money. It's always best to quote the whole sentence not just part of it.

 

[Acadia18]

NGK link not working for me either, any ideas?

View attachment 175958

Goddamn, free lobster dinner AND sexy singles?

 

[ScozR]

The article states that if the tuner recommends a colder plug, then listen to the tuner. I think thats important to point out since EQT recommends a colder plug for even stage 1.

The article says right after that statement you copied that even for a car with full bolt ons you won't see any benefits so don't waste your time or money. It's always best to quote the whole sentence not just part of it.

So I guess what we just determined is that that article is a worthless piece of crap since the writer contradicts himself in the very next sentence. At any rate, do what you want with your car.

 

[aaronc7]

Gen coupe page.... full bolt on could be the V6 NA motor. In which case yes, NA bolt on car isn't adding much power at all and cylinder temp/EGT increase is minimal.

Full bolt on mk7 totally different.

 

[jimlloyd40]

Gen coupe page.... full bolt on could be the V6 NA motor. In which case yes, NA bolt on car isn't adding much power at all and cylinder temp/EGT increase is minimal.

Full bolt on mk7 totally different.

Please give your reasons for the colder plug. I'm going to experiment and go back to stock heat range next time and compare. It's a confusing subject when so many people disagree about heat range. Diggs is well respected in the forum and he's above 440 HP and swears by the stock heat range Ruthenium plugs. I simply don't know.

 

[Acadia18]

I've always viewed it as an "if it's not broke, don't fix it" thing. If stock heat range isn't giving you issues, then there's no reason to go to a colder range.

 

[aaronc7]

One of the big reasons you go colder spark plugs is to minimize the chance of getting pre-ignition. Note this is different than knock. But it's a very grey area because there's really no way to detect pre-ignition and there's a lot of variables at play. You're most likely to run into pre ignition issues when running the car really hard, think road course etc. Most people never push theirs cars this hard...very different scenario than having a 5-10 second pull on the on ramp or whatever. I think tuners recommendations are naturally on the conservative side of things, and running a colder plug is safer, across all driving conditions etc.

I'm "only" running 1 step colder plugs on my 700hp corvette, almost doubled the HP, but if I were to take it to the track I'd probably get some colder plugs/race style plugs to be safe.

Bottom line yeah it's a grey area for sure. I'm running RS7/RS3 plugs and don't seem to be fouling up fast or anything. I'm OK with 15k-20k interval on the conservative side too. I can't think of any advantages to going back to stock heat range, I'm not trying to extend the service internal of my plugs.

 

[jimlloyd40]

I've always viewed it as an "if it's not broke, don't fix it" thing. If stock heat range isn't giving you issues, then there's no reason to go to a colder range.

Okay. I must have misunderstood your post that I quoted.

 

[jimlloyd40]

One of the big reasons you go colder spark plugs is to minimize the chance of getting pre-ignition. Note this is different than knock. But it's a very grey area because there's really no way to detect pre-ignition and there's a lot of variables at play. You're most likely to run into pre ignition issues when running the car really hard, think road course etc. Most people never push theirs cars this hard...very different scenario than having a 5-10 second pull on the on ramp or whatever. I think tuners recommendations are naturally on the conservative side of things, and running a colder plug is safer, across all driving conditions etc.

I'm "only" running 1 step colder plugs on my 700hp corvette, almost doubled the HP, but if I were to take it to the track I'd probably get some colder plugs/race style plugs to be safe.

Bottom line yeah it's a grey area for sure. I'm running RS7/RS3 plugs and don't seem to be fouling up fast or anything. I'm OK with 15k-20k interval on the conservative side too. I can't think of any advantages to going back to stock heat range, I'm not trying to extend the service internal of my plugs.

The only reason I was considering going back to the stock heat range is to try the Ruthenium plugs which aren't available 1 step colder and because so many guys are using them and are happy.

 

[GTIfan99]

I've always viewed it as an "if it's not broke, don't fix it" thing. If stock heat range isn't giving you issues, then there's no reason to go to a colder range.

What issues would you notice with a stock heat range that would indicate you need to go 1 step colder.