Plugs quick questions - 3000GT/Stealth International Message Center

PianoMan · 03-27-2005, 09:42 PM

Ok I think I was getting spark blowout last year on my car, even though my boost isn't turned up yet. I think I need new plugs. With my mods, what should I get, and what should the gap be? I was thinking about the NGK iridium, but I dont know which stage to get.I have stock turbos currently. Also what do the plugs come gapped at? How hard is it to regap them, since I want to do it once and not have to redo it all since it doesnt look easy to change them.

Thanks!

pjrainmaker · 03-28-2005, 11:17 AM

Iridium plugs dont do anything to add power. The thing with Iridium plugs is that that can hold up using a smaller electrode with less electrical resistance, this requires less power from your coil to ignite at its peak efficiency. The only difference is that they require less voltage to spark, appx 0.6V to be exact. Bosch is in development with an IrOdium plug which requires even less, about .4V, but they are having problems with durability. The result of using the iridium plugs with your stock ignition would be the same as using normal spark plugs with and MSD box. Nice, but not justified with the cost.
For performance, the best plugs would be along the lines of the NGK or Champion (yes I said Champion) split V's, BUT the don't last nearly as long. If you want durabilitym then a double platinum plug will keep you from taking your upper intake off 50k miles down the road. If money is no object and you want the performance, durability and low power requirements, then wait about a month or two for Autolite to come out with their new iridiums. They are going to be the end all cadillac of plugs. but still not worth the cash is your on a normal persons budget and don't mind spending some quality time under the hood of your pride and joy.

PS Gap the, between 32 and 34. its not hard, just get a 99cent gapper (or feeler gauges) and slide it between the electrodes, read the number where it stops and that's your gap. If the number is greater than 34 then tap the protruding electrode lightly until you get your desired gap. If the number is LESS than 32, then use the flanged hole in the gapper to safely pull the electrode away from the terminal without damaging any other part of the plug.

PianoMan · 03-28-2005, 01:23 PM

ok thanks

SkortchGT · 03-30-2005, 08:01 PM

Quote:

Originally Posted by pjrainmaker

Iridium plugs dont do anything to add power. The thing with Iridium plugs is that that can hold up using a smaller electrode with less electrical resistance, this requires less power from your coil to ignite at its peak efficiency. The only difference is that they require less voltage to spark, appx 0.6V to be exact. Bosch is in development with an IrOdium plug which requires even less, about .4V, but they are having problems with durability. The result of using the iridium plugs with your stock ignition would be the same as using normal spark plugs with and MSD box. Nice, but not justified with the cost.
For performance, the best plugs would be along the lines of the NGK or Champion (yes I said Champion) split V's, BUT the don't last nearly as long. If you want durabilitym then a double platinum plug will keep you from taking your upper intake off 50k miles down the road. If money is no object and you want the performance, durability and low power requirements, then wait about a month or two for Autolite to come out with their new iridiums. They are going to be the end all cadillac of plugs. but still not worth the cash is your on a normal persons budget and don't mind spending some quality time under the hood of your pride and joy.

PS Gap the, between 32 and 34. its not hard, just get a 99cent gapper (or feeler gauges) and slide it between the electrodes, read the number where it stops and that's your gap. If the number is greater than 34 then tap the protruding electrode lightly until you get your desired gap. If the number is LESS than 32, then use the flanged hole in the gapper to safely pull the electrode away from the terminal without damaging any other part of the plug.

Any split fire/V plug are shit on these cars.

PianoMan · 03-30-2005, 09:15 PM

what do you recommend then?

atxvr4 · 03-30-2005, 09:32 PM

NGK Coppers. I'm using BCP6ES right now, but I'll be going to BCP7ES later on. Less than $15 for all 6 at Oriely's.

SkortchGT · 03-31-2005, 04:16 AM

Quote:

Originally Posted by PianoMan

what do you recommend then?

Looks like from your mod list you don't need a colder plug right now. Here are some stock temp plugs:

http://www.importpoweronline.com/cat...=32_35_362_363

The PFR6J-11 are the stock platinum plugs. The cheaper ones above the iridiums are copper.

PianoMan · 03-31-2005, 05:46 AM

should i go one stage colder than stock? I will be putting in an ebc before the plugs.

Import Power · 03-31-2005, 05:55 AM

Quote:

Originally Posted by PianoMan

should i go one stage colder than stock? I will be putting in an ebc before the plugs.

Sure, go with 7's. BCP7ES #5030

1 step colder

PianoMan · 03-31-2005, 09:32 AM

thanks IPO
should I go with a resistor or not with a resistor? So if I go with the ebc I should go one step colder. Also, does the copper perform just as well as the others (platinum and iridium), but just have to be changed sooner? I dont want downgrade from stock platinum to copper and save a few dollars but lose performance. what about wires? will the stock wires be fine, or should I change those while I am at it? What do I do about those? Thanks!

03-27-2005, 09:42 PM	#1 (permalink)
PianoMan Loves Me Join Date: Oct 2003 Location: Duluth, MN Drives: 1995 Stealth RT/TT Trader Rating: (15)	Plugs quick questions Ok I think I was getting spark blowout last year on my car, even though my boost isn't turned up yet. I think I need new plugs. With my mods, what should I get, and what should the gap be? I was thinking about the NGK iridium, but I dont know which stage to get.I have stock turbos currently. Also what do the plugs come gapped at? How hard is it to regap them, since I want to do it once and not have to redo it all since it doesnt look easy to change them. Thanks! __________________ Minellvr4 is the gayest guy in the world. 95 StealthTT--Highly Modified -For Sale http://www.3si.org/forum/showthread.php?t=386043

03-28-2005, 11:17 AM	#2 (permalink)
pjrainmaker Forum Member Join Date: Mar 2005 Drives: 91 VR 4 Trader Rating: (0)	Re: Plugs quick questions Iridium plugs dont do anything to add power. The thing with Iridium plugs is that that can hold up using a smaller electrode with less electrical resistance, this requires less power from your coil to ignite at its peak efficiency. The only difference is that they require less voltage to spark, appx 0.6V to be exact. Bosch is in development with an IrOdium plug which requires even less, about .4V, but they are having problems with durability. The result of using the iridium plugs with your stock ignition would be the same as using normal spark plugs with and MSD box. Nice, but not justified with the cost. For performance, the best plugs would be along the lines of the NGK or Champion (yes I said Champion) split V's, BUT the don't last nearly as long. If you want durabilitym then a double platinum plug will keep you from taking your upper intake off 50k miles down the road. If money is no object and you want the performance, durability and low power requirements, then wait about a month or two for Autolite to come out with their new iridiums. They are going to be the end all cadillac of plugs. but still not worth the cash is your on a normal persons budget and don't mind spending some quality time under the hood of your pride and joy. PS Gap the, between 32 and 34. its not hard, just get a 99cent gapper (or feeler gauges) and slide it between the electrodes, read the number where it stops and that's your gap. If the number is greater than 34 then tap the protruding electrode lightly until you get your desired gap. If the number is LESS than 32, then use the flanged hole in the gapper to safely pull the electrode away from the terminal without damaging any other part of the plug.

03-28-2005, 01:23 PM	#3 (permalink)
PianoMan Loves Me Join Date: Oct 2003 Location: Duluth, MN Drives: 1995 Stealth RT/TT Trader Rating: (15)	Re: Plugs quick questions ok thanks

03-30-2005, 09:15 PM	#5 (permalink)
PianoMan Loves Me Join Date: Oct 2003 Location: Duluth, MN Drives: 1995 Stealth RT/TT Trader Rating: (15)	Re: Plugs quick questions what do you recommend then?

03-30-2005, 09:32 PM	#6 (permalink)
atxvr4 Forum Member Join Date: Dec 2004 Location: Austin Drives: 1994 VR4 Trader Rating: (7)	Re: Plugs quick questions NGK Coppers. I'm using BCP6ES right now, but I'll be going to BCP7ES later on. Less than $15 for all 6 at Oriely's. __________________ On the car: - Titan Bending TD05 Headers / O2 Housings (8/19/2006) - TD05 E16G's Braided feeds/returns (03/04/2007) - DSM SMIC's - Precision Turbo 680 CC Injectors - E2K Fuel Loop - E-Manage Blue w/ ignition Harness - Custom 3'' exhaust from turbos back (T-Pros DP) - Magnacore Wires - 3SX Braided break lines, Carbotech Vented and Slotted Rotors, and Hawk Pads - SBC-iD III Boost Controller - K&N FIPK - Ebay Y-pipe (shinny) - GTO MR Gears / 5 spd rear end (Installed 07/18/2005) - RPS Max Street Disc - 120K and Rod/Main Bearings (Finished 12/16/2005) - Walbro 255 lph f/p 13C Turbo Track Times (stock fuel): -13.2 @ 104, 1.86 60' (10.5 PSI - Took out jack/spare/rear and pass seats) -12.9 @ 106, 1.84 60' (12.3 PSI - slipping clutch, small boost leak, FULL INTERIOR)

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03-31-2005, 05:46 AM	#8 (permalink)
PianoMan Loves Me Join Date: Oct 2003 Location: Duluth, MN Drives: 1995 Stealth RT/TT Trader Rating: (15)	Re: Plugs quick questions should i go one stage colder than stock? I will be putting in an ebc before the plugs.

03-31-2005, 09:32 AM	#10 (permalink)
PianoMan Loves Me Join Date: Oct 2003 Location: Duluth, MN Drives: 1995 Stealth RT/TT Trader Rating: (15)	Re: Plugs quick questions thanks IPO should I go with a resistor or not with a resistor? So if I go with the ebc I should go one step colder. Also, does the copper perform just as well as the others (platinum and iridium), but just have to be changed sooner? I dont want downgrade from stock platinum to copper and save a few dollars but lose performance. what about wires? will the stock wires be fine, or should I change those while I am at it? What do I do about those? Thanks!