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07-10-2008
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#1 |
 
Join Date: Aug 2004
Location: Spring Grove ,Pa.
Posts: 257
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Plug part #'s needed
Changed plugs to NGK's stock heat range. I cleaned out the garage and tossed the old AC rapid fires they were one heat range colder. Parts guys can't tell heat range only know part #'s. Have custom chip that may have turned off knock sensor. Need to use colder plug can anyone help. I would like to go back to the rapid fires. My car is a 91 and still use the plugs with washers. Any help would be greatly appreciated.
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91 Turquoise Metallic Haibeck 525 #0134 |
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07-11-2008
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#2 |
Join Date: Sep 2006
Location: lone pine and mammoth lakes
Posts: 1,407
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Re: Plug part #'s needed
ngk irridums also come 1 and 2 heat ranges colder i believe it goes 55 -66 77-. i have some on order from my local napa guy. o dont have the exact number till they come in . i went 1 range colder . hope that helps some
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07-11-2008
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#3 | |
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Re: Plug part #'s needed
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07-11-2008
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#4 | |
   
Join Date: May 2007
Location: Peoria, AZ
Posts: 9,151
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Re: Plug part #'s needed
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GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director  91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V |
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07-11-2008
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#5 | |
 
Join Date: Jun 2005
Location: pittsburgh
Posts: 4,630
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Re: Plug part #'s needed
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It's not the car, it's the people - Doug Johnson 90 r/r "KEYS ON" nick named "T.L.B" |
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07-11-2008
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#6 | |
Join Date: May 2005
Location: Leesburg, VA
Posts: 2,712
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Re: Plug part #'s needed
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What plug part #'s did you get? If it's something like BRK5EIX, then you'd want a BRK6EIX or BRK7EIX. I'm going from memory on the exact part #, so it may be slightly different, but I'm positive about the 5/6/7 thing.
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Bob Saveland Former owner of #2517 [IMG]http://a.random-image.net/aurora40/vette.jpg[/img] Last edited by Aurora40; 07-17-2008 at 11:36 AM. Reason: BRK#EIX, not BR#EIX |
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07-11-2008
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#7 |
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Join Date: Aug 2004
Location: Spring Grove ,Pa.
Posts: 257
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Re: Plug part #'s needed
Not Sure but the queston was raised after I saw white looking plugs with afew showing some gray areas and some speckling on them. I always run the 93 octane fuel, and I'm not sure with headers and no cats and a B&B 3" exshaust if I would even hear any detonations. The chip in my car was done by Marc Randolph. Does anyone know him or even heard of him before.
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91 Turquoise Metallic Haibeck 525 #0134 |
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07-11-2008
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#8 | |
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Re: Plug part #'s needed
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Doesn't matter if you can hear them. It matters if you are getting knock. Just because you buy 93 octane doesn't always mean you are getting good gas. |
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07-11-2008
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#9 |
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Join Date: Aug 2004
Location: Spring Grove ,Pa.
Posts: 257
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Re: Plug part #'s needed
Thats why I pulled plugs and looked at them. I don't even trust the service station. Just because I buy Sunoco 93 octane doesn't mean thats what I'm getting. Just trying to rule things out. ninetyfive percent of my driving is highway miles in sixth gear at 65mph to 85mph. But I do try to blow things out a bit on occasion.
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91 Turquoise Metallic Haibeck 525 #0134 |
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07-12-2008
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#10 | |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,710
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Re: Plug part #'s needed
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My 92 came with an MR chip. I found his SA curve to be too aggressive for my setup. I would get Knock Retard at 4500rpm+. Dropped some timing and picked up about 4mph at the big end after adding headers. If you have speckles on the ceramic, you have detonation. Your probably giving up some power due to ECM backing off timing. BTW, MR chip didn't disable Knock Retard. |
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