BR7EF vs. TR6

[MTBSully]

Just did a compression test on my motor last night to determine its health before I crank up the boost. Shes healthy! I have been running BR7EFs since I turboed the car about 5000 miles ago. They are cheap so while I have them out I am going to change them. All 8 looked good. Light brown on all the tips. Question is, should I stay with them or try the NGK TR6's? I may run E85 this upcoming season in addition to a 93 street tune. What are you turbo guys running, how much boost, and what gap?

 

[Tabres]

I run a .022 gap on TR6's with E85 fuel, typically on 17lbs but I do run up to 22lbs on the same plugs and gap. I've tried BR7EF's in the past on the dyno and I've always had better results with TR6's.

Personally, if your car is happy with the BR7EF's, I wouldn't change the recipe.

 

[Mystic03]

E85 helps with cc temps too so tr6 should be just fine

 

[spray'n mach 1]

I just swapped from tr-6 to br7ef, no reason really heard they are a better choice at elevated boost levels. good luck

 

[badblacklx]

Br7ef

 

[MTBSully]

Read a bunch of threads about it last night. Just picked up some TR6s and will give them a go. If I don't like them i'm only out $16.

 

[RI-SVT]

Im giving the TR6's a shot as well.

 

[badblacklx]

I don't see a benefit of a projected tip plug over recessed top in our application.

 

[Wiseguy]

I like the non- projected BR7EF for big boost/ harsh environments. The tr6 is "tried and true" though......

 

[MTBSully]

Might give the BR7EF another shot. At 21PSI on e85 now it seems I am getting spark blowout

 

[Brutal Metal]

I don't see a benefit of a projected tip plug over recessed top in our application.

At his boost level I'd run the B series...

 

[static74]

I had the same issue on TR6 even gapped down to 16. BR7EF's are the way to go.