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#1
08-25-2004, 09:06 PM
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Spark plugs?
well i painted my valve covers today, and while i was at it i took a look at the plugs and they don't look too healthy so i'm going to get them replaced, what plugs do yall reccomend?? i was lookin at the splitfires and the bosh +4 and but i was told those were't good for turboed cars, is this true? should i just stick with the usual NGK? which NGKs are the best? also, i'm lookin to upgrade the spark plug wires, are 8.5mm the way to go? does it matter on the brand? thanks guys.
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1991 Mitsubishi 3000GT VR4 Twin Turbo- Forged Ross Pistons,Forged Crank,Forged and Shotpeened Rods,Stillin DP,K&N FIPK,Greddy Type-RS BOV,Magnacor Wires,Aluminum Y-Pipe,EGR Blocked,All Gutted Cats,Greddy Turbo Timer,Blitz Boost Guage,Autometer A\F Guage,Solid Shift Bushings,Red Top Batt,ACT 6 Puck Clutch,Free Boost Mod,99 Front End Conversion 
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#2
08-26-2004, 09:35 AM
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Re: Spark plugs?
Get Magnecor KV85 8.5mm plug wires on 3si's recommendation. And get NGK plugs, either copper or platinum. Platinum will last longer and should do fine, copper are cheaper and need to be replaced every 10k (if memory serves me correct) But copper are colder and will spark better and prevent issues with spark blowout. At stock boost levels, it really doesn't matter which, but if you turn up the boost, you will need to gap platinums closer or get coppers.
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96 3000gt vr4 -K&N FIPK -Proboost mbc -Cusco front + rear strut bars -Greddy type-s -ATR downpipe -no cats -15Gs, 3sx aluminum pulley, FMIC, SAFC, walboro pump, EVO 560ccs, and Meth Injection Kit all waiting to go in shortly. Your 1996 Mitsubishi 3000GT VR-4 is the 92nd out of the 315 that were made that year. Only 21 of which are exactly identical.
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#3
08-26-2004, 11:13 AM
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Re: Spark plugs?
Can u get spark plug wires for N/A's at an automotive store?
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#4
08-26-2004, 08:19 PM
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"Can u get spark plug wires for N/A's at an automotive store?"
Did you really just ask that question? Don't mean to offend, but did you think they only sell plugs for turbo cars at automotive stores? Of course they sell plugs for NAs. Most likely, the plugs for the NAs might be the same for a turbo. cmon now.
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93 3000GT base K&N | long tube headers | 3sx crank pulley| testpipe | Addco front/rear sway bars (3SX) | rear strut bar & front 3-point strut bar (by JonVr4 on 3Si) | solid motor mounts | LSD insert | KYB GR-2 struts | intrax springs | adj. control arms | ss brake lines | 16% taller 5th gear (teamrip.com) | H4 conversion | push-button start | datalogger | HKS S-AFR | PLX WB O2 coming soon: adj. cam gears | bi-xenon HID retrofit
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#5
08-26-2004, 09:03 PM
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Re: Spark plugs?
so are the copper ones better then the platnum ones? i know the copper ones need to be replaced more often but since it's a cooler spark is it better? as for turning up the boost, doing the free boost mod would still be considered stock boost levels right? thanks guys
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1991 Mitsubishi 3000GT VR4 Twin Turbo- Forged Ross Pistons,Forged Crank,Forged and Shotpeened Rods,Stillin DP,K&N FIPK,Greddy Type-RS BOV,Magnacor Wires,Aluminum Y-Pipe,EGR Blocked,All Gutted Cats,Greddy Turbo Timer,Blitz Boost Guage,Autometer A\F Guage,Solid Shift Bushings,Red Top Batt,ACT 6 Puck Clutch,Free Boost Mod,99 Front End Conversion
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#6
08-26-2004, 09:49 PM
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Re: Spark plugs?
i meant like the red ones used to dress up the engine, i know they sell them on many sites online but i was wondering if there was somewhere to get custom ones, i mean how the hell would i know if they had the same spark plug wires?
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#8
08-27-2004, 11:03 AM
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Re: Spark plugs?
advanced auto has colored axcell wires i think, but yea a tuner shop is the way to go, hell my local tuner shop has the magnacor 8.5s
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1991 Mitsubishi 3000GT VR4 Twin Turbo- Forged Ross Pistons,Forged Crank,Forged and Shotpeened Rods,Stillin DP,K&N FIPK,Greddy Type-RS BOV,Magnacor Wires,Aluminum Y-Pipe,EGR Blocked,All Gutted Cats,Greddy Turbo Timer,Blitz Boost Guage,Autometer A\F Guage,Solid Shift Bushings,Red Top Batt,ACT 6 Puck Clutch,Free Boost Mod,99 Front End Conversion
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#9
08-29-2004, 09:55 AM
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Re: Spark plugs?
yes free boost mod does still count as stock levels, as all it does is put the 1st gen vr4s at the same boost levels as the 2nd gens
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96 3000gt vr4 -K&N FIPK -Proboost mbc -Cusco front + rear strut bars -Greddy type-s -ATR downpipe -no cats -15Gs, 3sx aluminum pulley, FMIC, SAFC, walboro pump, EVO 560ccs, and Meth Injection Kit all waiting to go in shortly. Your 1996 Mitsubishi 3000GT VR-4 is the 92nd out of the 315 that were made that year. Only 21 of which are exactly identical.
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#10
09-02-2004, 09:12 PM
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Re: Spark plugs?
what about iridium spark plugs?
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'92 3000GT VR4 Current Mods: K&N FIPK RPS Streetmax clutch Rebuilt tranny Free Boost Mod Maximal Performance Solid Motor Mounts Pictures and Videos of my car Got a question about your auto insurance? I'm an insurance agent, ask away.
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#11
09-03-2004, 08:37 AM
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Re: Spark plugs?
iridiums last longer, but don't work as well with the turbos on our car. They are more expensive and you will probably get spark blowout. Stick with platinum at stock boost, and copper if you get a boost controller.
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96 3000gt vr4 -K&N FIPK -Proboost mbc -Cusco front + rear strut bars -Greddy type-s -ATR downpipe -no cats -15Gs, 3sx aluminum pulley, FMIC, SAFC, walboro pump, EVO 560ccs, and Meth Injection Kit all waiting to go in shortly. Your 1996 Mitsubishi 3000GT VR-4 is the 92nd out of the 315 that were made that year. Only 21 of which are exactly identical.
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#12
09-03-2004, 05:43 PM
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Re: Spark plugs?
why copper if I get a boost controller?
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'92 3000GT VR4 Current Mods: K&N FIPK RPS Streetmax clutch Rebuilt tranny Free Boost Mod Maximal Performance Solid Motor Mounts Pictures and Videos of my car Got a question about your auto insurance? I'm an insurance agent, ask away.
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#13
09-06-2004, 07:21 PM
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Re: Spark plugs?
Because when you turn up the boost, you have a higher chance of getting spark blowout, coppers are a few stages colder than platinums, so they will prevent sparkblowout.
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96 3000gt vr4 -K&N FIPK -Proboost mbc -Cusco front + rear strut bars -Greddy type-s -ATR downpipe -no cats -15Gs, 3sx aluminum pulley, FMIC, SAFC, walboro pump, EVO 560ccs, and Meth Injection Kit all waiting to go in shortly. Your 1996 Mitsubishi 3000GT VR-4 is the 92nd out of the 315 that were made that year. Only 21 of which are exactly identical.
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#14
09-06-2004, 07:49 PM
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What boost levels are we talking about here? And what is stock on the first and second gens?
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1995 3000GT VR-4 Installed: ESP front precat eliminating downpipe, test pipe, RF-1008 K&N, Dejon tool Y pipe, 1G DSM BOV, MSD wires, Guted rear pre cat, ISSPRO EV Marine boost gauge, IPO MBC, EGR blockoffs, Palm m515 dataloger setup, NGK iridium plugs, SPEC stage II clutch 500ft/lb, 5300k HID plug and play setup. Soon:Topline Engineering ground wires.
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#15
09-06-2004, 08:00 PM
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Re: Spark plugs?
stock for 1st gen is 9psi
stock for 2nd gen is 12psi when I get a boost controller I'll run it at 14 psi. at that level, should I get copper or plat plugs? What do I need to do to safely run higher psi ? do I have to upgrade turbos? or do something else?
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'92 3000GT VR4 Current Mods: K&N FIPK RPS Streetmax clutch Rebuilt tranny Free Boost Mod Maximal Performance Solid Motor Mounts Pictures and Videos of my car Got a question about your auto insurance? I'm an insurance agent, ask away.
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