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Old 07-20-2013, 10:58 PM   #18
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Old 07-21-2013, 11:25 AM   #19
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Thread covering the tip as you call it is what is called non protruded electrode. That is why I avoided the ZR1 plug in the first place, as they aren't optimal for nitrous. It's why I'm running Brisk silvers and considering the Denso IT22's. But most of my experience on plugs was with sbc engines and we are in a whole new world now with tuning and fine tuning.

i run a tr6 for 100 shot and less. its projected. but for that size it does good. but anything above i run br7ef. my dad is a sbc guru. thats where alot of info on nitrous comes from along with a buddy that owns kyspeed . between the 2 they know what to do. when u start sprayin 200-250 and up when u really need the tune to dead on. the fine tuning lol


as far as jamie car hes not running a big shot yet.
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Old 07-21-2013, 12:50 PM   #20
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as far as jamie car hes not running a big shot yet.
But he thinks he is a big shot! :-)


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Old 07-21-2013, 01:08 PM   #21
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But he thinks he is a big shot! :-)


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I'll straighten him out soon...
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Old 07-21-2013, 01:13 PM   #22
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LOL.
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Old 07-21-2013, 01:15 PM   #23
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Jamie will have no idea what hit him. It's gonna be the best day in Camaro5 history
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Old 07-21-2013, 09:38 PM   #24
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Quote:
Originally Posted by dan0617 View Post
Thread covering the tip as you call it is what is called non protruded electrode. That is why I avoided the ZR1 plug in the first place, as they aren't optimal for nitrous. It's why I'm running Brisk silvers and considering the Denso IT22's. But most of my experience on plugs was with sbc engines and we are in a whole new world now with tuning and fine tuning.
We have had great success with densos..zr1 plugs are great for 600 flywheel hp after that there to hot IMO

Last edited by H-E; 07-22-2013 at 11:11 AM.
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Old 07-21-2013, 11:41 PM   #25
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You're all a bunch of dopes. Couple wanna be's, few has beens and a never was.

Been on the ZR1 plugs for a few years now. They've been working great in my 9 second car. To bad no one else can say that in here.

Over 100 on the nitrous now, still on the ZR1 plugs.

Well past 600 rwhp... Still on ZR1 plugs. Seems to work ok....


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Old 07-22-2013, 02:05 AM   #26
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Jamie knows what I'm getting at. It's the old adage "my car is fast, I need ridiculous plugs for my ridiculous power". When in reality the OEM plug is all around the best plug you can get at.
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Old 07-22-2013, 08:56 AM   #27
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I had misfires with the NGKs when starting, idling, light throttle, and returning to idle. I hated those plugs. I'd give the ZR1 plugs a shot, the $80 plugs made one of the biggest differences on a stupidly expensive car
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You're all a bunch of dopes. Couple wanna be's, few has beens and a never was.

Been on the ZR1 plugs for a few years now. They've been working great in my 9 second car. To bad no one else can say that in here.

Over 100 on the nitrous now, still on the ZR1 plugs.

Well past 600 rwhp... Still on ZR1 plugs. Seems to work ok....


I keep considering the ZR1 plugs but just keep thinking that I should go 1 step colder than stock due to the 12 psi, and another step colder due to the 125 shot. Also I keep thinking a non protruding plug is safer, which puts me to the Denso IT22 if I want to stay iridium.

Not at all doubting your success with the ZR1's. Just wondering when you factor in my stock cam and compression if my dynamic compression coupled with my mods might make me borderline on the ZR1's. 1 step colder than those and non protruding would for sure leave more safety margin as long as they don't foul or leave me with the light throttle misfire notorious of copper plugs in these cars.

Of course I may just be a set of ZR1 plugs, an ice chest and a mountain of frozen water away from 9's.
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Old 07-22-2013, 11:10 AM   #28
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I keep considering the ZR1 plugs but just keep thinking that I should go 1 step colder than stock due to the 12 psi, and another step colder due to the 125 shot. Also I keep thinking a non protruding plug is safer, which puts me to the Denso IT22 if I want to stay iridium.

Not at all doubting your success with the ZR1's. Just wondering when you factor in my stock cam and compression if my dynamic compression coupled with my mods might make me borderline on the ZR1's. 1 step colder than those and non protruding would for sure leave more safety margin as long as they don't foul or leave me with the light throttle misfire notorious of copper plugs in these cars.

Of course I may just be a set of ZR1 plugs, an ice chest and a mountain of frozen water away from 9's.
Go to the NGK website and educate yourself,after all why do the make colder plugs if one size fits all? I remeber when some were braging on running the stock plug and making 600 plus hp yada yada and as soon as the zl1 was out and GM used a colder plug,as they should since it went from 426hp to 580 those same guys jumped to the colder plug and braged about how it was so much better. Most dont understand what a plugs function is ,and its alot harder to tune a car with colder plugs so alot of shops run hotter plugs to make there job easier. Ive never put denzos in a car and not picked up power and the last a long long time.Good luck
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Old 07-22-2013, 11:17 AM   #29
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BR7EF plugs here for the last 3000 miles. My tuner highly recommended these plugs and loves to tune with them. Pat Guerra tuned the car. I have had not a single issue.
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Old 07-22-2013, 11:44 AM   #30
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What is the number of the ZR1 plug? In other works what do I ask for at the Auto Parts Store?
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Old 07-22-2013, 12:05 PM   #31
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Good info. Guess I will have to switch and give them a try. I also get some misfires on startup with the TR7's... Maybe the ZL1 plugs would help with that. Guess it's worth a shot for $80.
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Old 07-22-2013, 12:07 PM   #32
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ZR1 plugs are good but for people pushing 850+ I think they are a bit too cold.
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Old 07-22-2013, 12:27 PM   #33
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ZR1 plugs are good but for people pushing 850+ I think they are a bit too cold.
a bit to "hot"
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Old 07-22-2013, 12:29 PM   #34
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ZR1 plugs are good but for people pushing 850+ I think they are a bit too HOT.
Fixed it for ya.

They are a 6 heat range by the number system we are all now used to. The NGK system, and others.

I'm thinking 600 or more at the wheels through an auto should be a 7 heat range and shouldn't be protruded if using nitrous.

I'm using an 8 right now and I think it is a little too cold. Not staying clean. Gotta find that balance between holding enough heat to stay clean, but not so hot at WOT that they melt, or cause detonation.

But some, like Jamie are having a ton of luck with the ZR1's at big power levels. Of course if he melts something he has enough extra parts to sell off and pay for a rebuild. LOL.

But what do I know, I'm still in the figuring and deciding process myself. Not the easiest choice to make.
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