Boosted Firehawk

iTrader: (11)

I never see this in the threads but what plugs does everyone run on their setups and whats. Your setup .?

What plugs r recommended on stock style setups and gasoline? How bout e85?

ANY CHARTS on this like they do with niteous setups?

Boosted Firehawk

iTrader: (11)

anybody?

stangtrader

iTrader: (2)

Lots of info on the subject,but on my stock lq4 with a rearmount I had blowout issues with tr6 plugs over 8lbs.switched to br7ef plug gapped at 28 with no problems

9sectruck

iTrader: (9)

IM RUNNING TR6s AT 16PSI BOOST ON MY 5.3. on e85
I called ngk yesterday and they told me to try the tr7ix iridum plugs, get it all dialed in on the 16psi and then bumping it up to 20 with the 7ix plugs. gapped at .030 right now

RedRocketZ28

iTrader: (19)

Straight from the box BR7EF's with my car on E85. It did not like TR6's at all.

2JZFC

iTrader: (26)

Hope you have better luck with the iridiums than I did. Ran 5.62 @ 127.7 with BR7EFs in a 6.0L with a S480 @ 20psi in a Mustang. Was concerned about that power level in the 1/4-mile and NGK recommended the iridiums. Could barely get the engine to run trap 150mph. Engine started, idled and drove better but fell flat at full boost. Put the BR7EFs back in but had to start over since I screwed up my tune with the iridiums. So far, 8.89 @ 154.5 at 17psi.

If anyone wants to try them, I will ship them to you for $25. 20 miles and 4 passes on them.

9sectruck

iTrader: (9)

^^ what where they gapped at I think they around .045-.050 out of the box?

oange ss

iTrader: (50)

used BR7EF's intially, but switched to TR6's, E85 on 15 lbs, I like the better idle quality of the TR6's...part throttle seems smoother, no difference in WOT that I can tell

Twin turbo c5

I agree I've had problems with drivability with the br7's tr6 have always done me good.im going to try the 7's again here soon when I go the track with 18psi though. But both work fine .

Boosted Firehawk

iTrader: (11)

What r u guys gapping them at.
Tr6
Tr7s
on e85 and boost levels

9sectruck

iTrader: (9)

mine are at .030 at the 16psi and I close them up to .025 when I get up in the 20s

oange ss

iTrader: (50)

.028 or .030, cant remember

2JZFC

iTrader: (26)

.025 as per NGK.

Boosted Firehawk

iTrader: (11)

Is there a average gap per lb of boost or what?

LilJohn

No. Run it as wide as you can without blowout issues.


You guys run some hot *** plugs... lol

Boosted Firehawk

iTrader: (11)

Im a nitrous guy and i woukd use tr7s probably gapped around 32
I dont like hot plugs at all

willizm

iTrader: (10)

I'm running br7's with about a .022-.024 on e85 at 15psi.

Sales@Tick

iTrader: (3)

We use projected tip 7-8 heat range plugs for boosted street cars. Keeps the plugs from fouling with the projected tip, but heat range is cold enough to combat pre-ignition and detonation.

willizm

iTrader: (10)

^What are the thoughts on running a warmer plug when using e85? needed, not needed?

ddnspider

iTrader: (26)

I would never run a projected tip on any type of power adder car that is making decent power. I run TR7's gapped at .028. I tried TR8's, but that is where they switch to a non-resistor type spark plug, and they did NOT play nice with my Lingenfelter 2 step.