What plugs are you running?

[SCalla1384]

Finished up datalogging with Shaun. I have a tvs with an 82mm pulley on 93. Gas I use is usually pretty good (or so I thought lol) but was getting some knock. Curious what plugs and gap are you guys running? Right now I have Brisk RR12s gapped at 0.030. I was thinking of trying TR6 or 7s, not sure which ones are better? And closing up the gap to like 0.028.

 

[bunits19714]

I am running rr14s with high grade 98-100 octane fuel- 11psi @17* gapped at .30- no knock and plugs when checked showed no signs of any of detonation( as per tuner).

 

[SCalla1384]

I should of done some more research before posting. I decided to order the NGK 6510s. Seems like a lot of people have good luck with them, and a lot of tuners recommend them.

Is it possible to have to cold of a plug? I got the RR12s which are 2 heat ranges colder. Not sure if that could have some sort of affect? I also may try going a littler tighter gap from .030 to .028.

 

[1quick]

I run 6510's but mine is on nitrous .035 gap

 

[11Sec_Lx]

6510's here. .029" on 15lbs. I might be able to widen it a bit, but don't want to mess with it.

 

[five.slow]

6510s and no issues .032. Only 6lbs of boost.


Sent from my iPhone using Tapatalk

 

[by9468840]

Unless you are experiencing blow out there is no benefit in going smaller with the gap. You should aim to run largest possible gap that runs without blow out for your boost level.

 

[T's03GT]

6510's

 

[GBCoyote]

6510's. Gapped at .32 but need to be gapped at .30 honestly. Mods in sig. Your knock probably isn't from your plugs. Add some Lucas octane booster in it and I bet it goes away.

 

[SCalla1384]

6510's. Gapped at .32 but need to be gapped at .30 honestly. Mods in sig. Your knock probably isn't from your plugs. Add some Lucas octane booster in it and I bet it goes away.

I do have some torco but I wanted to use that for race days only. Was hoping I can get her properly tuned just on 93. Don't want to bandaid if with fuel boosters. Figured I'd try swapping plugs before I do commit to trying the Torco or Lucas stuff.


Thanks for the responses guys!

 

[SCalla1384]

Is that Lucas octane booster actually good? I've always been hesitant on that stuff. Torco is so expensive, if that Lucas stuff is for real, maybe I'll just use a bottle every fill up since it's pretty cheap and easy to get....

 

[1quick]

Lucas has the same main ingredient as torco, but less volume per bottle it does work though

 

[SCalla1384]

Interesting... Well if the plugs don't fix the issue I'll do that then. Thanks!

 

[GBCoyote]

Yes Lucas works pretty well. Just don't expect a bottle to treat an entire tank. I used it for safety when I was on pump gas. I'd put a bottle in every half tank or so.