CR10EK or CR10EIX ???

[ranger1]

After doing a spark plug "search", it appears that the general consences is to run the cooler 10's over the stock 9's. I have also read that some prefer the 9's with the dual ground electrodes.
Which would be better, the CR10EK's with the dual ground or the CR10EIX's with only single ground but are irridium plugs? The 10EK's on e-bay are $20 & the irridium are only 8 bucks more.

 

[Sled Dog]

The EK is supposed to deliver a few extra ponies than the EIX. The irridium is supposed to be less inclined to fouling but so are the EK's over stock. Either one will be fine. I run the EK's in my sleds with no problems.

 

[ranger1]

The EK is supposed to deliver a few extra ponies than the EIX. The irridium is supposed to be less inclined to fouling but so are the EK's over stock. Either one will be fine. I run the EK's in my sleds with no problems.

So basically what you are saying is that it's the dual ground that is producing the extra HP & not the cooler plug?
Has anyone dynoed & compared the EIX to the EK to see if there is any gains to be had from these plugs. We all know the EK's when dynoed gained 2-3 hp.
I like the fact that the irridium run cleaner, last longer & are supposed to be more efficient, but if I am going to the trouble of changing them, it sure would be nice to gain a few HP's as well! lol

 

[87gtNOS]

The EK is supposed to deliver a few extra ponies than the EIX. The irridium is supposed to be less inclined to fouling but so are the EK's over stock. Either one will be fine. I run the EK's in my sleds with no problems.

So basically what you are saying is that it's the dual ground that is producing the extra HP & not the cooler plug?
Has anyone dynoed & compared the EIX to the EK to see if there is any gains to be had from these plugs. We all know the EK's when dynoed gained 2-3 hp.
I like the fact that the irridium run cleaner, last longer & are supposed to be more efficient, but if I am going to the trouble of changing them, it sure would be nice to gain a few HP's as well! lol

I wonder if anyone has ever took NEW CRE9's (stock plug) and put then into the sled after using the CR10EK on the dyno?? I have seen over and over in many applications that a simple change out to just NEW (same plug#) plugs on the dyno gained power......

 

[Srxspec]

The EK is supposed to deliver a few extra ponies than the EIX. The irridium is supposed to be less inclined to fouling but so are the EK's over stock. Either one will be fine. I run the EK's in my sleds with no problems.

So basically what you are saying is that it's the dual ground that is producing the extra HP & not the cooler plug?
Has anyone dynoed & compared the EIX to the EK to see if there is any gains to be had from these plugs. We all know the EK's when dynoed gained 2-3 hp.
I like the fact that the irridium run cleaner, last longer & are supposed to be more efficient, but if I am going to the trouble of changing them, it sure would be nice to gain a few HP's as well! lol

I wonder if anyone has ever took NEW CRE9's (stock plug) and put then into the sled after using the CR10EK on the dyno?? I have seen over and over in many applications that a simple change out to just NEW (same plug#) plugs on the dyno gained power......

I ran the stock plugs on the dyno (CR9E) for baseline and then put in a new set of CR10EK plugs (2-3 hp gain), then tried a new set of CR9EIX plugs (same hp as the CR9E), and then went back to a new set of CR9E plugs to check our baseline.

 

[Shiek]

plugs

Allen, so is there any difference from cr10iex to cr10ek's ?

 

[ranger1]

The EK is supposed to deliver a few extra ponies than the EIX. The irridium is supposed to be less inclined to fouling but so are the EK's over stock. Either one will be fine. I run the EK's in my sleds with no problems.

So basically what you are saying is that it's the dual ground that is producing the extra HP & not the cooler plug?
Has anyone dynoed & compared the EIX to the EK to see if there is any gains to be had from these plugs. We all know the EK's when dynoed gained 2-3 hp.
I like the fact that the irridium run cleaner, last longer & are supposed to be more efficient, but if I am going to the trouble of changing them, it sure would be nice to gain a few HP's as well! lol

I wonder if anyone has ever took NEW CRE9's (stock plug) and put then into the sled after using the CR10EK on the dyno?? I have seen over and over in many applications that a simple change out to just NEW (same plug#) plugs on the dyno gained power......

I ran the stock plugs on the dyno (CR9E) for baseline and then put in a new set of CR10EK plugs (2-3 hp gain), then tried a new set of CR9EIX plugs (same hp as the CR9E), and then went back to a new set of CR9E plugs to check our baseline.

So Srxspec, did you happen to dyno the CR10EIX plugs? I am still debating which ones to go with. The irridium would be nice because they would have less tendancy to foul & be more efficient but do they gain the same HP as the CR10EK's??? Hmmm Is it the cooler plug which is producing the extra ponies or is it the dual ground...now that...is the question?? lol

 

[Srxspec]

When I tried the CR10EIX in later testing I did not see any gains over the stock CR9E in that particular test.

 

[snowbeast]

After doing a spark plug "search", it appears that the general consences is to run the cooler 10's over the stock 9's. I have also read that some prefer the 9's with the dual ground electrodes.
Which would be better, the CR10EK's with the dual ground or the CR10EIX's with only single ground but are irridium plugs? The 10EK's on e-bay are $20 & the irridium are only 8 bucks more.

Most of us when this irridium plugs started to surface,ran the 10's in the irridium style,and did seem to run cleaner,but again,no hp increase that you could notice.

 

[ranger1]

After doing a spark plug "search", it appears that the general consences is to run the cooler 10's over the stock 9's. I have also read that some prefer the 9's with the dual ground electrodes.
Which would be better, the CR10EK's with the dual ground or the CR10EIX's with only single ground but are irridium plugs? The 10EK's on e-bay are $20 & the irridium are only 8 bucks more.

Most of us when this irridium plugs started to surface,ran the 10's in the irridium style,and did seem to run cleaner,but again,no hp increase that you could notice.

I never fouled a plug in my sled before using the stock plugs so I might as well just give the regular EK's a try.
Thanks to everyone for their help!!

 

[Srxspec]

From what I have seen plug fouling still comes down to making sure you let the sled idle long enough to get fully warmed up before moving the sled or before shutting it down (if you're just moving the sled around in the off season, etc).