kk this might sound a bit funny but i was working on the 7 the other day and i decided to pull the plugs and give them the once over.... i am an owner of a gsl-se with a 13b and i was wondering what where the right plugs? I have the ones from a 12a i know this because i was at the auto weaker and took some from a 12a and they where the same. should i be using the plugs for a second gen 13b or stick with a 12a plug....Thanks

Mike

 

Br9eq-14 is the correct plug for the Se 13b. Br8eq-14 is the correct plug for the 12a. They are not the same.

 

soo 12a plugs are bad...whats the difference is it just that more gas gets burnt instead of pushed into the cat or will it actually get me more performance...also i know the 2nd gen 13b has a special trailing and a special leading plug should i do that as well or run both as leading?

 

also whats the difference like are they hotter or colder or weaker spark...is there a advantage to replacing them

 

The br8eq-14 is a hotter plug, if you were doing just stop and go driving all the time and loading up then it would be ok. The 1st gens do not use a different leading and trailing plug.

 

ok thank you very much Doc

Mike

 

No problem. You can't fo wrong with the stock heat range for a stock motor. When you start modifying like a big street port or turbo that's when you would go to a colder plug.

 

yeah ill wait for the new motor before i do anything like that mines got 209 on it ...its well maintained its got 100 psi in front 96 rear but 209's pushing it...or so i think...probably better to get a new one first but still i don't know how much longer mine will go..but thank you agian

 

Properly cared for and driven, it still has many more miles on it. With the current mileage, plan on new housings when it comes time for a rebuild, probably new irons and bearings too.

 

how / what can i do 2 inshure that its taken excellent care of? i dont want 2 kill another fb

 

Redline it.

Also, with an engine that has high mileage like that, run a search for these two items:

Seafoam

Lucas Heavy Duty Oil Stabilizer

These two products will be your best friend, as I know from personal experience. I also have 209,000 miles on my engine, and race it on a regular basis (autox)...

 

Doc, We found that the NGK B10EG immediately ran smoother and more powerful on the GB carb on the 4 port 13B. Running in all four positions. Still experimenting, but head to head with the BR9eq-14, the B10EG's start, idle and throttle response smoother. FWIW