NGK BR7EF's

[fangs99]

i'm switching from TR6's to BR7EF's......anyone else try these yet? how did you like them?

 

[Zacharyx]

used them for about 4 years now, no issues, going back to tr6 for daily driving without spray since the non-projected tips seem to foul a quicker when not beat on ( I know I should just beat on the car more LOL )

I put them in anything mod motor running over 10# of boost

 

[fangs99]

I'm on 13psi and 9.9:1 compression

 

[Juiced46]

I run them on all 650rwhp + builds that I do. Love them

 

[TwinTurbo4vGT]

Surprisingly I had tr7ix and they weren't working for me. Using stock 03-04 cobra plugs and they are great.

 

[Zacharyx]

Surprisingly I had tr7ix and they weren't working for me. Using stock 03-04 cobra plugs and they are great.

actual motorcraft or NGK equivalent (tr6)?

I did iridium, copper and platinum a few years back while on the dyno and the copper made more power each time ( only 5-6 hp ) but it was repeatable so I have run copper in everything since then, and lean toward NGK since they are easier to read than Autolites

 

[TwinTurbo4vGT]

actual motorcraft or NGK equivalent (tr6)?

I did iridium, copper and platinum a few years back while on the dyno and the copper made more power each time ( only 5-6 hp ) but it was repeatable so I have run copper in everything since then, and lean toward NGK since they are easier to read than Autolites

Motorcraft plugs. They made two different plug types for the 03-04 cobra. I am running the hotter version.

 

[blowngt]

BR7EF's on 10.5-1 and as much as 14#s of boost on E85 so far.

No complaints at all........

 

[D-MANN]

I use them with my KB 2.6H,Its the plug KB told me to use.
NGK #3346

 

[Tabres]

What are you guys gapping them at?

 

[fangs99]

The BE7EF's come gaped at .28

 

[fangs99]

Anyone have any idle or just off idle problems with them?

 

[itSSlow98]

Im running BR7s gapped at .32 and the idle leaves a lot to be desired but the car likes them in boost so I live with it.

 

[dan03mach]

Im running BR7s gapped at .32 and the idle leaves a lot to be desired but the car likes them in boost so I live with it.

If you have having idle issues that is in the tune and it might need to be adjusted. I run those plugs with 160lb injectors and a big turbo and my car idles like stock.

 

[SSeatr]

running them here, out of the box works great for WOT pulls but had to open gap a tiny bit more to get it to behave a little better down low. for me anyway

 

[TwinTurbo4vGT]

If you have having idle issues that is in the tune and it might need to be adjusted. I run those plugs with 160lb injectors and a big turbo and my car idles like stock.

That's because your in Texas. The plugs are colder than stock and up here it's just starting to get warm. since its colder, at idle they tend to foul since the cylinders arent getting as hot as yours. It is what it is, really nothing to do about it.

 

[Juiced46]

I never had an issue with the BR7EFs fouling in cold weather running. Always a perfect idle. It has to be a tune issue if you are seeing idle problems causing a plug to foul.

 

[dan03mach]

That's because your in Texas. The plugs are colder than stock and up here it's just starting to get warm. since its colder, at idle they tend to foul since the cylinders arent getting as hot as yours. It is what it is, really nothing to do about it.

I don't know about that because here in winter time I can run my car with it being upper 20's low 30's out side and it still idles great. Like I said that is in the tune and not the plugs. I tuned my own car and played with the idle a lot. You got to play with cold start etc. and you can't do that with the car already warm. It takes time because the car has to be cold while doing it.

 

[y2k2gt]

I dont have any idle issues in the winter.

 

[fangs99]

What about the TR7IX's?