I ordered an NX wet system and was wondering if I need plugs and which ones, part# etc. I believe there are currently Bosch plugs in it now. Not planning on anything more than a 50/70 shot probably 50 at most, thanks

 

Mine are in my sig.

 

BKR6E-11 for a 50-70, anything above 75 go 2 steps colder, BKR7E-11

 

nissan cars only like NGK spark plugs, change now to 1 set colder copper.

 

thats right, thus the part number, BKR6E-11 make sure you gap it to about .38 however...

 

bosch plugs in a nissan:i hope you were not planning to go on platinium plugs, that would be a real . but seriously these guys are right, NGK all the way. getting ready for this years season i just ordered up a set of iridiums 2 degrees colder. they cost more in the end sometimes but they last longer than copper.

 

N/A I run NGK TR55's when I ran Nitrous, 3 years ago, I ran NGK TR6's [one step colder]

 

how are those iridium plugs compared to the platinum plugs

 

What he said ^^^


and side-gap them to .035 as well:
http://i48.photobucket.com/albums/f2...3/Dscn1166.jpg

or you can blow chunks out of them:
Iridium cra* plugs - the chunk on the ground strap is part of an exhaust valve.
http://i48.photobucket.com/albums/f2...3/Dscn1159.jpg

http://i48.photobucket.com/albums/f2...3/Dscn1150.jpg


Preignition suxxs.....

 

what if in not sure if i want to run a 75 or 100 shot? Which plugs should i go with, 1 or 2 steps? I have headers with full exhaust and a walbro 255, so i should be fine right?

 

One step for 75-shot is safe, two steps for anything above 75-shot. The effects are not linear - heat buildup while spraying can be incredible - copper center-electrode plugs are mandatory.

 

I had a manifold backfire when I tried 1 step colder plugs with stock gap at 100 shot. I used to run 2 and 1 step colder plugs with 75 shot at .036 gap and never had a problem. I never could tell the diff NA between the 1 and 2 step colder gap during everyday driving. I would still go 2 step at .036" gap. Blew my upper manifold gasket, maf, filter, plugs were bad. Motor A O K.

 

I am running a 100shot with 1step colder plugs gapped at .035

and .038 with a 75shot all with a walbro 255

 

That's one reason I run my Voltage Boostar at 16 volts to the coils - stops that nonsense. .035 gap is good , even at 150 shot runs back-to-back. Cut the grounds and side-gap them - run serious race gas - enjoy a safe ride to the dark side of 100-shot and beyond....

"If you ain't breakin' sumthin', you ain't racin' hard enough"


.

 

would a afpr be a good thing to have?

 

For a wet nitrous system:

You definitely want your fuel pressure to stay constant - 43 psi - while you're spraying. The nitrous pressure is mostly constant, so if your fuel pressure goes up or down, then you're outside specs, and you may be shopping for another engine.

If you have a dry system, then good luck, bud.

 

I have a dry setup and it bumps up the fuel psi when the nitrous kicks in, so it very important to have a fuel system that can keep up .. aka good fuel pump, filter and clean injectors

the afpr that I have can take burst of fuel psi up to 300psi, so they claim cause it crap out twice and this is my third one. only good thing it they replaced it everytime, I would suggest if you are getting a afpr make sure it's rebuildable

 

ok, who makes a rebuildable and reliable fpr? and i do have a wet system

 

Aeromotive makes good stuff. I use one.

Try here:
http://www.jegs.com/webapp/wcs/store...10323_-1_10267

 

I am just an annoyance to grey, i ran a 125 on 91 oct with 2 steps only gapped to a .038 although, I know he will smile when I say, his side gapped fancy shmancy is really the way to go... its all about PREVENTION! \


btw grey, I am thinking of spraying a 100 shot ontop of my 10 psi of sc boost, think I will pop the motor on race fuel even? he he

 

Yeah, but you live somewhere up in the clouds, don't you. Like no air at all? Did you ever get that s/c beast into the 14s?

If you really get up the gumption to spray AND s/c, take videos - it'll be like the 4th of July out there. Boom, boom, etc.... The plugs and race fuel make a "race condom" for nitrous - it can't hurt for FI cars too. And plugs are cheap.

Seriously, you could sell tickets - but if you do it, do the side-gapped plug thing and serious race fool - er, fuel - and sneak up on the shot-level. After all, streetz sprayed his tailpipe turbo and amazed himself using a 35-shot to launch with. Now he's talking about turbo + spray all the way down the track.

DO it. Send videos - and good luck....

 

HAHAHAHA, i plan to do it, I still need to pull the nitrous out of the other maxima, and throw it on the SC one. I can get some c16 here from the 1400 hp supra guys that live by me so I am good there... Right now my plugs are gapped at .034, but not side gapped, as yes I am still in the clouds. I never post times anymore because people have no clue what it is like here, plus our track is slippier than a regular street, but none the less, i hit low 14's and still trapping 104, but if I go to vegas, i can hit high 13's on the same if not a little higher trap, like 105ish. all on street tires.

 

I'm looking forward to it - what altitude is your track? I drove to Denver last August, and I swear I lost two cylinders somewhere around Limon CO on I70 - there's no air in Denver!

Still, i think w/sc you should get mucho HP - but I guess not as much as at lower altitudes, right ? There was a NHRA Nationals in Denver this year, and I seem to remember that NHRA allowed the dragster guys to up the percentage of nitromethane because of altitude - maybe from 90% to 95% ??? I can testify a nitro bike REALLY likes that fuel! ( old Glory Days for me).

Hey, I wonder if anyone would notice if I ran nitro/alcohol at the strip? Like alcohol, you gotta jet much richer and have more spark, but I can do that. Hummmm..... Maybe....

Oh, check out these guys for a new twist in nitrous delivery:

http://www.nanonitrous.com/

They seem to be real - and their company is about 30 miles from me.
.

 

4300 ft. CO is just like here... no air. CO's track is higher, but ours is worse condition. none the less, the car dynoed at 328 whp in virginia, and only 300 here...

 

And I think you need to do this:



to prevent this:

 

lol. Will do. and when I finally get around to spray ( i will probably wimp out and start with a 50 shot) I will post a vid.

 

so now my question is, if i go 2 step colder plugs and i run a usual 75 shot, could i still go back to a 50 shot on 2 steps colder if i wanted? it should be fine right?

 

Yes, you can. I left my two-step-colder plugs in all season, complete with cut grounds. No problems starting, gas mileage stayed the same, and I took a couple of long trips (1000+ miles) with these plugs installed. Works fine in the winter as well. Same plugs street and strip....

I do change out plugs 3-4 times per racing season, just because I can, and they're super cheap for copper-core plugs. Sometimes I crack an insulator, but I am running 150-shot all the way down the track. That does heat up the inside of a combustion chamber, you know.

 

haha, yea a little heat. but what do you mean by cut grounds?

 

ngk makes plugs that the ground strap is already cut. they are the ngk racing plugs. I haven't priced them out to yet.

 

Look up four messages in this thread - I've made a lot of them myself. No need to buy them...

 

so run the bkr6e-11 with cut grounds?

 

I would recommend cutting the ground strap on which ever plugs you go with. bkr6e-11 use with less than a 75 shot. bkr7e-11 use with 75 shot or higher

bkr6e-11 1 step colder

bkr7e-11 2 step colder

 

right, but could i do the 7e plugs with a 50 shot? just in case i decide to jump up to a 75+shot. i dont see why it would be a problem, but figured id ask the pros

 

Yes, the 7E (two-step-colder) plugs work fine NA only, 50-shot or 75-shot or 100-shot or 150-shot. Above 75-shot, you need to cut the grounds back as shown above. The cut ground plugs still worked jest fine for NA etc....

Been there, done that. Mostly you just need a spark, and ground straps that don't glow in the dark!

 

Hey guys, I'm new to the org. I have a 04 Max with 5sp Auto,my mods are:
Zex 75shot, kinteix Intake manifold, F5CAI, Cattman downpipe, Greddy SP2 Exhaust, Timing retarded 2degrees and NGK Iridium LFR6AIX-11 one step colder plugs gapped at.044 My Best 1/4 1.86 60', 13.068E.T. and 104MPH. I see most of you are gapping your plugs at .034 and .036 can you give me some insight on that for me?

http://www.cardomain.com/ride/2618056

 

Dude! those are good numbers! Post that slip for us - and some pix from under the hood. What tires did you use at the strip?

Oh yeah, plugs - the 4th gen stock ignition needs help when boosting or spraying - the spark blows out unless you close down the gap a bunch. I was closed down to .030 when racing with a 150-shot setup. I found a notebook power supply that let me raise the voltage going to all the coils - I used 16 volts - and then opened the gap back out to .035. I hear the later gen cars have enough spark for boost or spray - I guess you use the stock gap, right? Ignition misfiring at high load and RPMs is sneaky - your top end drops off, but when I jacked up my voltage, I picked up 2MPH in the traps.

Now that you have our attention, please share details and photos... I think you have to have 15 posts before you can post a new thread, but you could reply here. Please.

EDIT: never mind - I just found your CarDomain web pages. Man, that's an impressive car, and the Kinetex (sp ?) intake is very unusual around here. Props.

 

please explain how you used a laptop power supply to do that, sounds interesting

 

Look here:
http://www.powerstream.com/dc2.htm

Installed, it looks like this:
http://i48.photobucket.com/albums/f2...3/Dscn1408.jpg

Works purdy darn good, and for $50, well, it's worth it.

 

Thanks for the info on the plug gapping I have mine gapped at .044 which is stock for the 6thgen. Will a .045 or.046 give me better performance? I,m using Nitto555R Drag Radial 15PSI 245/45/17 Rear PSI at 36 on 245/45/18