plugs blowing suggestion?

[LightningMAS]

i am getting detenation, when im about to get into boost.. 0 vaccum.. line.. timing is at 16.. i pulled the plugs to inspect and all plugs except one doesnt have a knick on them electrodes... like the piston is hitting the plugs electrodes and causing lil knicks off the electrodes.. i got the A/F at 11.2-11.4 right before it detnated and truck ran crap.. does that mean the timing is high or to cold of a plug or what..???? i am using NGK BR7's gapped at .36

 

[Fade 2 Black]

You most likely have bad gas. It may also depend upon how many miles the plugs have on them. Under harder usage they should be changed at 10-15K. 16* isn't too high, I ran that for two years, you could back it down to 14* to be more safe. I had the same issue last summer and I pulled timing until I could change the plugs. IDK if it was the plugs or bad gas but it was cured.

 

[LightningMAS]

i just put these plugs in the same day i took them out to inspect them...

i filled up new gas from BP the same day to.. lol

this all happend yesterday.. oh well.. i went to napa to get some TR6's.. so now im changing back the BR7's to TR6's.. now im gapping the TR6's at .32 ima try these..

 

[Fade 2 Black]

Sounds like you got bad gas, if so changing the plugs won't help. Pull at least 2* global timing out until the gas is gone. Gapping to .032" is too close unless you're running 20+ psi of boost all the time. 16# and less boost gap them to .036".

 

[LightningMAS]

shit. i dont feel like pulling them all back to regap.. ill wait till next plug change.. Thanks Bob for ur help..

 

[LightningMAS]

how can bad gas be related to this??? any answers to this?

 

[203Cree]

Bad gas = lower octane or maybe some water in there. Would cause det.

 

[LightningMAS]

thanks rob.

 

[Snakestress]

bad gas :lol: beans mostly..