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-   -   Anyone with big builds or even smaller have this problem with Brisk or other Plugs? (https://www.corvetteforum.com/forums/c7-tech-performance/4250394-anyone-with-big-builds-or-even-smaller-have-this-problem-with-brisk-or-other-plugs.html)

C5-VERT 03-10-2019 04:40 PM

Anyone with big builds or even smaller have this problem with Brisk or other Plugs?
 
https://cimg4.ibsrv.net/gimg/www.cor...b9ae1cc21b.jpg
https://cimg7.ibsrv.net/gimg/www.cor...5d8f05c515.jpg

GeorgeR_Zed06 03-12-2019 10:39 PM

I had them on my 2014 Z51 car with long tubes and knn cai. After a lil while, I chunked them and went back with NGK. I lost a couple mph in the 1/4 mile. Depending on your build, you might of not had a cold enough plug. What was it gapped at?

Avanti 03-13-2019 01:13 AM

Yikes! Among other options, either you had some serious timing issue or the plugs are way toooooo hot! :ack: DON'T do again what you did here!

C5-VERT 03-13-2019 10:47 AM

Think they were gapped too big at .30. I got them down to .25 holley and hp tuner logs showing misfires gone. I have one step colder I may go two steps once I get a bit more logging done and sent to my tuner Chris Crawford. Will report back.

jimxms 05-18-2019 04:42 PM

I just ditched my Brisks in favour of NGK's. I started getting misfires, then my engine sounded like a Subaru. Tracked it down to one cylinder not getting any spark at all - laser thermometer read 70c on #6 and 300c+ on all other cylinders. I swapped everything before I did the plug, nothing fixed it. Swapped the plug and it was instantly fixed.

Annoyingly I dropped the plug straight out the bottom of the car and down a drain before I could inspect it :toetap:


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