booboo37

iTrader: (43)

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ATwelveSec02Z28

iTrader: (17)

For NA 0.035 is fine.

On a 150 hit, 0.035 is probably fine, but it wont hurt to close it up some.

As for timing - take out 6-8º, and work your way back up til the plugs read well.

For a 150 hit the 8 plug may be a little too cold, all depends on the rest of the engine, so be careful not to put too much timing in if youre not seeing a timing mark on the plugs.

HCI2000SS

iTrader: (2)

Personally I'd opt for the BR7's

The stunningman

iTrader: (47)

BR8EF comes out of the box gapped .025 -.028. Set them all at one or the other. I wouldn't bother opening them up anymore than that on nitrous.

I'd pull minimum 8 - 10 degrees and read the strap. Better safe than sorry on the first hits.

streetknight2

iTrader: (10)

What kind of plate are you using? Jetting and fuel pressure?

booboo37

iTrader: (43)

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onequiklx

Clean car

menchaca

iTrader: (1)

Man that is a sexy coupe. Runs good too.

streetknight2

iTrader: (10)

I would use a -9 plug gapped at .025-.028"

I would pull around 9 degrees of timing on that pill from your NA timing

I would start tune ups as Edelbrock says which should be really fat. Fuel pressure usually starts at 6.5#

Warm the car up on one set of plugs and put a fresh set in, make a hit and shut it off. Cut at least one plug and Repeat till your happy with the tune up.

I was running a Big Shot plate and ended up with a 12 jet spread and 5# of fuel pressure for a 100 shot and it's still a little fat. You can tell from the base ring and the strap there wasn't much heat so it could've stood a little more timing, but I was happy with this tune up. Good Luck

speedtigger

iTrader: (16)

I think you have made good plug choices and the gaps sound good too. If you have a seperate regulator for the nitrous, I would drop it to 5.5 pounds. The only reason I suggest that pressure is that it is kind of the "standard" fuel pressure for most of the big boy nitrous guys, so you can share jetting strategies apples to apples.

As for the nitrous jetting, what the most credible nitrous guys that I know recommend starting with a 10 jet spread with 5.5lbs pressure at the 150 level. I personally run a 12 jet spread for my 150 tune (63n/51f). I started out pulling 8 degrees and settled in at 6 degrees pulled for my 150 shot. I think I could go to 5 degrees based on the heat in the plug.

I personally have run BR7 plugs all the way up to an 81n jet tune and they looked perfect with no signs of excessive heat. However, I have a couple boxes of B8EFS for the next set of nitrous passes.

Doug G

http://www.robietherobot.com/NitrousJetCalculator.htm

Limited knowledge here on the bottle and the "kit" that was pieced together using parts from a few buddies along with their help on my car (only used a few times on the old SBC) The above helped me on finding a base tune for the few jets I have. I've played with it some, and by adjusting the fuel pressure a touch I can dial in what I have.
The numbers fall pretty much in line with what others are running on their set-ups too

As for the timing, I have always been told pull 2* per 50hp as a base line and PULL THE PLUGS
For the plug gap, I was told to tighten it up some...about .005(or more depending on plug gap N/A) at anything over 100 and under 200.

TTur1996

I was going to use those B8EFS plugs also. When I called NGK to get the gap they asked me if I was aware that they were non resister. They said they were pretty sure that you were not supposed to use them with the MSD set up I have (6012). So I busted out the directions and low and behold. Right there on the front page in bold print. DO NOT USE NON RESISTOR SPARK PLUGS OR SOLID CORE WIRES. Crap, I had already bought a few sets. LOL They told me the only plug they make in the 8 heat range with a .708 reach in resistor is the TR8IX iridium's. And they don't make them in a 9 for spray. They told me you could use the non resister if you buy these screw on plug boots that have a 5k resister built in. They look like those hard plastic dirt bike boots. You have to cut off the old ones and screw on the new ones. He even Emailed me the parts page because you can get them in quite a few configurations. Curious to what everyone else is doing.