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Old 02-21-2014, 04:43 PM   #26
litle88
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I followed that lead on the ZR1 plugs ok for a factory car like a Stock slow ass ZR1 but they didnt work nor did the pos SCT tuner SCT didnt and couldnt figure it out trashed the zr1 plugs got a coustom tune went to TR7s ran like a bat out of hell and now new set up same plugs
True story. Lol
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Old 02-21-2014, 04:46 PM   #27
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I followed that lead on the ZR1 plugs ok for a factory car like a Stock slow ass ZR1 but they didnt work nor did the pos SCT tuner SCT didnt and couldnt figure it out trashed the zr1 plugs got a coustom tune went to TR7s ran like a bat out of hell and now new set up same plugs
Yeah I dont get it with ZR1Plugs.....sure they are in a factory supercharged car, but just becuse you supercharge your ls doesn't mean you automatically run ZR1 plugs!!

I dont like SCT hand helds...I'll stick with HP Tuners!
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Old 02-21-2014, 04:50 PM   #28
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SuperchargedSS car ran zr1 plugs and it blew up....It was tuned by JRE... I dont know the details, but either the plugs went bad or the tune was off?
Plugs were ok just in the wrong application.
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Old 02-21-2014, 05:04 PM   #29
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That's a good tuner.
Yes, Yes he is. Pat G is a genius. Unfortunately he lives just over 6 hrs away. He also does not like meth. He drove all the way up for my first tune then i drove down to Victoria Tx when i pulley'd down the D1. He didnt even charge me for that tune. Kurt Decker(LSX Performance) didnt charge me for his dyno time. We just shot a bunch of ammo after we were done. Couple really good dudes.

James Karger is gonna tune my new twin setup here in a week. He loves the meth and is excellent according to my research. I cant get E85 so might as well use my alky system thats already installed.
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Old 02-21-2014, 05:07 PM   #30
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Quote:
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Plugs were ok just in the wrong application.
These forums need a like button
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Old 02-21-2014, 05:19 PM   #31
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My ZL1 plugs do me fine at the point Im at but once I do anything else Im buying plugs and injectors.
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Old 02-21-2014, 05:27 PM   #32
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This thread just got me thinking....... I popped my #5 piston ringlands after upping the boost from 6 to 11 psi and up to 715rwhp. I was running -6 plugs when i was 6 psi and 637whp.

When i pulley'd down and added meth the shop i used at the time did not change out the plugs to -7 heat range. Just the smaller pulley, meth and tune.

Six weeks later and 6 gallons of meth my motor copped an attitude and there went #5 on the factory motor. Wonder if a cooler plug would have made it last a little longer.

I was on a mission to see how much crap the motor could take, and it held up pretty long. Just wonder if a cooler plug would have prolonged it a little longer

Food of thought.
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Old 02-21-2014, 06:33 PM   #33
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Denso IT-22's or IT-24's to be extra safe. These are good for nitrous use as well.
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Old 02-21-2014, 06:36 PM   #34
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Quote:
Originally Posted by BullF-16 View Post
This thread just got me thinking....... I popped my #5 piston ringlands after upping the boost from 6 to 11 psi and up to 715rwhp. I was running -6 plugs when i was 6 psi and 637whp.

When i pulley'd down and added meth the shop i used at the time did not change out the plugs to -7 heat range. Just the smaller pulley, meth and tune.

Six weeks later and 6 gallons of meth my motor copped an attitude and there went #5 on the factory motor. Wonder if a cooler plug would have made it last a little longer.

I was on a mission to see how much crap the motor could take, and it held up pretty long. Just wonder if a cooler plug would have prolonged it a little longer

Food of thought.
So you were at 11 psi and 715 RWHP on -6 projected tip plugs? Pretty good chance they were turning into glow plugs and caused detonation. I would have used at least a 7 heat range, if the meth shot was small and/or the fuel was less than 93 octane I would have used an 8.

Another thing to add for anyone reading......a forged motor won't last any longer or hold any more power than the stock motor if the plugs are too hot. It creates detonation (preignition to be exact) that timing retard by the computer's knock sensor cannot help.
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Old 02-21-2014, 07:24 PM   #35
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Agreed, you can have the best amps and speakers in the world but distortion will kill it.
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Old 02-21-2014, 07:34 PM   #36
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Why don't you just ask your tuner what he's comfortable with if he says whatever call ngk (great company) they will answer all questions you have and give you the best option. I made the mistake of asking a spark plug question on here after a piss and moan match, just like this is turning into, and I just talked to my tuner we went with tr6 plugs runs perfect. Just don't waste your time on here you'll get a million answers for the million options.
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Old 02-21-2014, 07:44 PM   #37
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Quote:
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So you were at 11 psi and 715 RWHP on -6 projected tip plugs? Pretty good chance they were turning into glow plugs and caused detonation. I would have used at least a 7 heat range, if the meth shot was small and/or the fuel was less than 93 octane I would have used an 8.

Another thing to add for anyone reading......a forged motor won't last any longer or hold any more power than the stock motor if the plugs are too hot. It creates detonation (preignition to be exact) that timing retard by the computer's knock sensor cannot help.
Im pretty sure they were -6 plugs but i doubt projected tips. I did not ask Dallas Performance at the time. I know i was not charged for new plugs. So i was at 11 psi with meth on a D1sc with 65# FAST injectors that were at 88% duty cycle on the dyno tune. I asked if ID1000s were better and was told the meth would compensate. I had a big question mark on that remark so i take responsibility for my stupidity. I also beat the living crap out of the motor and now have a new HKE built LSX 427 that is stupid.
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Old 02-21-2014, 08:54 PM   #38
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This is the result of the wrong plugs on with a boosted LS3....



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Old 02-21-2014, 09:00 PM   #39
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This is the result of the wrong plugs on with a boosted LS3....



I can weld that.
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Old 02-21-2014, 09:01 PM   #40
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I can weld that.

We tried.... Went with crazy glue instead..
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Old 02-21-2014, 09:03 PM   #41
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This is the result of the wrong plugs on with a boosted LS3....



That's a FN mess. Hate to see that.
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Old 02-21-2014, 10:32 PM   #42
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Little where's your pic?
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Old 02-21-2014, 10:33 PM   #43
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I just put tr7ix in based on my tuners recommendation. that pic above looks a lot like what happened to my first engine (stock)...don't need that again lol.
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Old 02-22-2014, 02:41 AM   #44
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This is the result of the wrong plugs on with a boosted LS3....



So that's the consensus that a spark plug did that?
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Old 02-22-2014, 07:01 AM   #45
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So that's the consensus that a spark plug did that?
This happened on a dyno. Things were controlled as far as air/fuel, timing, etc. The plugs were overlooked and it was the opinion of the tuner that the plugs caused detonation which caused the carnage.
It was a shop test car which was getting a new engine either way and they were just trying to see how much the LS3 could take.
Its a shame they overlooked proper plug selection and never really found out the limit of the stock engine, but $#@# happens.

I don't really get into spark plug discussions, because almost no one uses the plugs I do, or agrees with my choice. I use only Brisk Silver Tips. Silver is a better conductor and the main benefit is a silver tip will melt before getting hot enough to cause detonation. This is a fantastic safety feature of silver tips, as the pictures I posted shows.
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Old 02-22-2014, 07:27 AM   #46
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Non projected tip plug like a B8EF for your power. If your tuner has issues tuning them then get a new tuner or run the 8iX iridium plugs.
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Old 02-22-2014, 07:28 AM   #47
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So on a forged ls3, 9.5:1 cr, 12-14lbs of boost on 93octane and methanol, I will be using br7.
Is this right?
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Old 02-22-2014, 08:04 AM   #48
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So on a forged ls3, 9.5:1 cr, 12-14lbs of boost on 93octane and methanol, I will be using br7.
Is this right?
Yes good choice
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Old 02-22-2014, 08:16 AM   #49
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Looks to me it was just a mechanical failure. That also sucks and also happens.
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Old 02-22-2014, 10:19 AM   #50
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So what would be the difference at my power level between a BR7EF and a B8EFS? (Assuming my build will reach 800-850rwhp)
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