Sparkplugs with Nitrous

[FATHERFORD]

What plugs are you nitrous guys using? I plan on doing a 250rwhp pill with 116 in the dedicated fuel cell, so I would need 2 steps colder.

Thanks,
Justin

 

[dave6666]

Do you also plan on taking the bosses daughter for a "refresher" cruise after these mods?



http://forums.viperclub.org/2497566-post1.html

 

[FATHERFORD]

LOL

If the gets me more browny points.

 

[2001 GTS]

Autolite 3923 is 2 steps colder IIRC.

Thats what I ran when I was running a 200shot.

 

[plumcrazy]

my guess was 2 steps colder till ya said the 116 fuel. im not sure how thats gonna effect it.

 

[99 R/T 10]

I run a 2 step colder plug and LOVE it! Still has an extended reach for good cold starts. Champion RC10ECC is the only way to go . I think Daniel Lesser (Viper Specialty ) sells the plug for $70 a set, but PM him to be sure.

 

[plumcrazy]

but isnt that 116 fuel gonna change things for him ?

 

[99 R/T 10]

Not sure Phil, maybe. I would think if he is using 116, then he could probably get away with a one step colder plug. He'll need to tune it anyway and as long as his A/F is in the 11's with no detonation, he should be fine either way. But he asked for a 2 step colder plug, I like them Champions

 

[FATHERFORD]

I'll have a wide banned hooked up and street tune the car, along with pulling the plugs to check for even distribution between all cylinders.

 

[grcforce327]

Champion RC10ECC is the only way to go . I think Daniel Lesser (Viper Specialty ) sells the plug for $70 a set, but PM him to be sure.

That's a steal!!! I'm In!!!

 

[FATHERFORD]

Well here is what I found out calling around.

Autolite 1800-890-2075
985 is the oe plug
AR3924 1 step colder
AR3923 2 steps colder

Champion 1-800-325-8886
RC10ECC/RC10918 discontinued

Now here is where it gets interesting. The federal mogul champion tech told me the RC10868 marine plug "should" be the same plug as the ECC/918.

Perhaps a viper vender knows something of this?

EDIT: Well apprently the 868 is a lawn mower plug? I need to call tech back and see what's up.

 

[dave6666]

EDIT: Well apprently the 868 is a lawn mower plug? I need to call tech back and see what's up.

What...? Your mower isn't a V10?

 

[FATHERFORD]

What...? Your mower isn't a V10?

No, but I just bought a riding lawnmower for $50 bucks and plan on spraying on it

 

[Viper Specialty]

That's a steal!!! I'm In!!!

haha, no kidding!

That price is about 2 years old, back when they actually made them.

 

[grcforce327]

I know where they're at!

 

[Dan Cragin]

NGK4291 works great for this application. We have them in stock. 310-841-6996.

Dan

 

[FATHERFORD]

Thanks for explanation on why the shorter range plugs work best in this situation DC performance.

Just ordered me 30 NGK's for a tad over $70 shipped.

 

[99 R/T 10]

Thanks for explanation on why the shorter range plugs work best in this situation DC performance.

Just ordered me 30 NGK's for a tad over $70 shipped.

I would like to hear this explaination. I've heard of "colder range" plugs and "Shorter and longer reach" plugs, but I've never heard of shorter range plugs?!

The RC10ECC is a stock reach plug with a 2-step colder range, which is why it works so well. Good cold starts with the plus of being a colder plug. Other makes of colder plugs have a MUCH shorter reach and cold engine run proporties **** bad . I would like either Dan Cragin and/or Daniel Lesser speak to this and if I am wrong, please correct me.

 

[FATHERFORD]

meant reach not range... Brain fart!

I'm sure he could get more into then I could. Spark plug lingo isn't my cup of tea.

Are the RC10ECC a better plug? Probally. They are also hard to find and $11 a piece. Where as the NGK is common and $2.40 a piece and will work "just fine" according to Dan.

 

[KC]

I bought the NGK 4291 (ZFR6F-11) to use with nitrous The gap is .40 should I set the gap at .35

thanks

 

[Jack B]

I bought the NGK 4291 (ZFR6F-11) to use with nitrous The gap is .40 should I set the gap at .35

thanks

Set the gap at .028 to .030

 

[KC]

Thanks for the info Do you run nitrous

 

[Jack B]

Thanks for the info Do you run nitrous

I have run both the NOS and NX systems. I am current running a custom 300-350 shot. i run mine at .025.