"The spark plug thread"

[3zercrowd]

Courteous of the NGK(Tm) website

http://www.ngkspark.com.au/part_ind...com.au/PartFinder/spark_plug_vehicle_type.htm

*Note all plug gaps vary. So gap them to 0.7-0.8mm accordingly unless shown otherwise*


C-73A (non Turbo)

Your Vehicle:
06/88 - 10/91 Mitsubishi Import Lancer C63A, C73A 1.6L DOHC 4G61
Spark Plug Part No. Plug Gap
Recommended Plug BP6ES 0.0


C-73A (Turbo)

Your Vehicle:
06/88 - 09/89 Mitsubishi Import Lancer C73A 1.6L DOHC Turbo 4G61
Spark Plug Part No. Plug Gap
Recommended Plug BP6ES 0.0



1.5L Lancer imports

Your Vehicle:
10/91 Mitsubishi Import Lancer CA2A,CB2A 1.5L 4G15
Spark Plug Part No. Plug Gap
Recommended Plug BPR5ES-11 0.0

CB Lancer GSR/1.6L

Your Vehicle:
1990 - 09/92 Mitsubishi Lancer 1.6L CB, MPI
Spark Plug Part No. Plug Gap
Recommended Plug BP6ES-11 1.1


VR4

Your Vehicle:
1990 - on Mitsubishi Galant 2.0L HH, VR4, Turbo
Spark Plug Part No. Plug Gap
Recommended Plug BP6ES-11 1.1(Recommended 0.7-0.8mm though)

CC Lancer GSR

Your Vehicle:
Mitsubishi Lancer 1.8L CC, MPI, DOHC, Turbo 4G93T
Spark Plug Part No. Plug Gap
Recommended Plug BKR6E 0.8


CE Lancer GSR

Your Vehicle:
1992 - 1996 Mitsubishi Import Lancer GSR Turbo 1.8L DOHC 4G93
Spark Plug Part No. Plug Gap
Recommended Plug BKR6E 0.0



Evo1

Your Vehicle:
10/91 - 01/94 Mitsubishi Import Lancer Evo 1 Turbo CD9A 2.0L DOHC 4G63
Spark Plug Part No. Plug Gap
Recommended Plug BP6ES 0.0

Evo2

Your Vehicle:
01/94 - 09/94 Mitsubishi Import Lancer Evo 2 Turbo CE9A 2.0L 4G63
Spark Plug Part No. Plug Gap
Recommended Plug BP7ES 0.0

Evo3

Your Vehicle:
09/94 - 08/96 Mitsubishi Import Lancer Evo 3 Turbo CE9A 2.0L 4G63
Spark Plug Part No. Plug Gap
Recommended Plug BPR7EKN 0.0

Evo4

Your Vehicle:
08/96 - 01/98 Mitsubishi Import Lancer Evo 4 Turbo CN9A 2.0L 4G63
Spark Plug Part No. Plug Gap
Recommended Plug PGR7A 0.0

Evo5&6

Your Vehicle:
01/98 - 01/00 Mitsubishi Import Lancer Evo 5 & 6 Turbo CP9A 2.0L 4G63
Spark Plug Part No. Plug Gap
Recommended Plug PGR7A 0.0

Evo7 GTA(auto)

Your Vehicle:
02/01 - on Mitsubishi Import Lancer Evo 7 Auto Turbo CT9A 2.0L 4G63
Spark Plug Part No. Plug Gap
Recommended Plug IGR7A 0.0

Evo7

Your Vehicle:
02/01 - on Mitsubishi Import Lancer Evo 7 Manual Turbo CT9A 2.0L 4G63
Spark Plug Part No. Plug Gap
Recommended Plug IGR7A-G 0.0

Evo8

Your Vehicle:
01/03 - on Mitsubishi Import Lancer Evo 8 Turbo CT9A 2.0L 4G63
Spark Plug Part No. Plug Gap
Recommended Plug IGR7A-G 0.0

Have fun

 

[3zercrowd]

Courteous of the NGK(Tm) website

http://www.ngkspark.com.au/part_ind...com.au/PartFinder/spark_plug_vehicle_type.htm

*Note all plug gaps vary. So gap them to 0.7-0.8mm accordingly unless shown otherwise*


C-73A (non Turbo)

Your Vehicle:
06/88 - 10/91 Mitsubishi Import Lancer C63A, C73A 1.6L DOHC 4G61
Spark Plug Part No. Plug Gap
Recommended Plug BP6ES 0.0


C-73A (Turbo)

Your Vehicle:
06/88 - 09/89 Mitsubishi Import Lancer C73A 1.6L DOHC Turbo 4G61
Spark Plug Part No. Plug Gap
Recommended Plug BP6ES 0.0



1.5L Lancer imports

Your Vehicle:
10/91 Mitsubishi Import Lancer CA2A,CB2A 1.5L 4G15
Spark Plug Part No. Plug Gap
Recommended Plug BPR5ES-11 0.0

CB Lancer GSR/1.6L

Your Vehicle:
1990 - 09/92 Mitsubishi Lancer 1.6L CB, MPI
Spark Plug Part No. Plug Gap
Recommended Plug BP6ES-11 1.1


VR4

Your Vehicle:
1990 - on Mitsubishi Galant 2.0L HH, VR4, Turbo
Spark Plug Part No. Plug Gap
Recommended Plug BP6ES-11 1.1(Recommended 0.7-0.8mm though)

CC Lancer GSR

Your Vehicle:
Mitsubishi Lancer 1.8L CC, MPI, DOHC, Turbo 4G93T
Spark Plug Part No. Plug Gap
Recommended Plug BKR6E 0.8


CE Lancer GSR

Your Vehicle:
1992 - 1996 Mitsubishi Import Lancer GSR Turbo 1.8L DOHC 4G93
Spark Plug Part No. Plug Gap
Recommended Plug BKR6E 0.0



Evo1

Your Vehicle:
10/91 - 01/94 Mitsubishi Import Lancer Evo 1 Turbo CD9A 2.0L DOHC 4G63
Spark Plug Part No. Plug Gap
Recommended Plug BP6ES 0.0

Evo2

Your Vehicle:
01/94 - 09/94 Mitsubishi Import Lancer Evo 2 Turbo CE9A 2.0L 4G63
Spark Plug Part No. Plug Gap
Recommended Plug BP7ES 0.0

Evo3

Your Vehicle:
09/94 - 08/96 Mitsubishi Import Lancer Evo 3 Turbo CE9A 2.0L 4G63
Spark Plug Part No. Plug Gap
Recommended Plug BPR7EKN 0.0

Evo4

Your Vehicle:
08/96 - 01/98 Mitsubishi Import Lancer Evo 4 Turbo CN9A 2.0L 4G63
Spark Plug Part No. Plug Gap
Recommended Plug PGR7A 0.0

Evo5&6

Your Vehicle:
01/98 - 01/00 Mitsubishi Import Lancer Evo 5 & 6 Turbo CP9A 2.0L 4G63
Spark Plug Part No. Plug Gap
Recommended Plug PGR7A 0.0

Evo7 GTA(auto)

Your Vehicle:
02/01 - on Mitsubishi Import Lancer Evo 7 Auto Turbo CT9A 2.0L 4G63
Spark Plug Part No. Plug Gap
Recommended Plug IGR7A 0.0

Evo7

Your Vehicle:
02/01 - on Mitsubishi Import Lancer Evo 7 Manual Turbo CT9A 2.0L 4G63
Spark Plug Part No. Plug Gap
Recommended Plug IGR7A-G 0.0

Evo8

Your Vehicle:
01/03 - on Mitsubishi Import Lancer Evo 8 Turbo CT9A 2.0L 4G63
Spark Plug Part No. Plug Gap
Recommended Plug IGR7A-G 0.0

Have fun

 

[3zercrowd]

Courteous of the NGK(Tm) website

http://www.ngkspark.com.au/part_ind...com.au/PartFinder/spark_plug_vehicle_type.htm

*Note all plug gaps vary. So gap them to 0.7-0.8mm accordingly unless shown otherwise*


C-73A (non Turbo)

Your Vehicle:
06/88 - 10/91 Mitsubishi Import Lancer C63A, C73A 1.6L DOHC 4G61
Spark Plug Part No. Plug Gap
Recommended Plug BP6ES 0.0


C-73A (Turbo)

Your Vehicle:
06/88 - 09/89 Mitsubishi Import Lancer C73A 1.6L DOHC Turbo 4G61
Spark Plug Part No. Plug Gap
Recommended Plug BP6ES 0.0



1.5L Lancer imports

Your Vehicle:
10/91 Mitsubishi Import Lancer CA2A,CB2A 1.5L 4G15
Spark Plug Part No. Plug Gap
Recommended Plug BPR5ES-11 0.0

CB Lancer GSR/1.6L

Your Vehicle:
1990 - 09/92 Mitsubishi Lancer 1.6L CB, MPI
Spark Plug Part No. Plug Gap
Recommended Plug BP6ES-11 1.1


VR4

Your Vehicle:
1990 - on Mitsubishi Galant 2.0L HH, VR4, Turbo
Spark Plug Part No. Plug Gap
Recommended Plug BP6ES-11 1.1(Recommended 0.7-0.8mm though)

CC Lancer GSR

Your Vehicle:
Mitsubishi Lancer 1.8L CC, MPI, DOHC, Turbo 4G93T
Spark Plug Part No. Plug Gap
Recommended Plug BKR6E 0.8


CE Lancer GSR

Your Vehicle:
1992 - 1996 Mitsubishi Import Lancer GSR Turbo 1.8L DOHC 4G93
Spark Plug Part No. Plug Gap
Recommended Plug BKR6E 0.0



Evo1

Your Vehicle:
10/91 - 01/94 Mitsubishi Import Lancer Evo 1 Turbo CD9A 2.0L DOHC 4G63
Spark Plug Part No. Plug Gap
Recommended Plug BP6ES 0.0

Evo2

Your Vehicle:
01/94 - 09/94 Mitsubishi Import Lancer Evo 2 Turbo CE9A 2.0L 4G63
Spark Plug Part No. Plug Gap
Recommended Plug BP7ES 0.0

Evo3

Your Vehicle:
09/94 - 08/96 Mitsubishi Import Lancer Evo 3 Turbo CE9A 2.0L 4G63
Spark Plug Part No. Plug Gap
Recommended Plug BPR7EKN 0.0

Evo4

Your Vehicle:
08/96 - 01/98 Mitsubishi Import Lancer Evo 4 Turbo CN9A 2.0L 4G63
Spark Plug Part No. Plug Gap
Recommended Plug PGR7A 0.0

Evo5&6

Your Vehicle:
01/98 - 01/00 Mitsubishi Import Lancer Evo 5 & 6 Turbo CP9A 2.0L 4G63
Spark Plug Part No. Plug Gap
Recommended Plug PGR7A 0.0

Evo7 GTA(auto)

Your Vehicle:
02/01 - on Mitsubishi Import Lancer Evo 7 Auto Turbo CT9A 2.0L 4G63
Spark Plug Part No. Plug Gap
Recommended Plug IGR7A 0.0

Evo7

Your Vehicle:
02/01 - on Mitsubishi Import Lancer Evo 7 Manual Turbo CT9A 2.0L 4G63
Spark Plug Part No. Plug Gap
Recommended Plug IGR7A-G 0.0

Evo8

Your Vehicle:
01/03 - on Mitsubishi Import Lancer Evo 8 Turbo CT9A 2.0L 4G63
Spark Plug Part No. Plug Gap
Recommended Plug IGR7A-G 0.0

Have fun

 

[WRCVR4]

Its recommended in a VR4 to gap to .7-.8 not the 1.1 :wink:

Good Sticky

 

[WRCVR4]

Its recommended in a VR4 to gap to .7-.8 not the 1.1 :wink:

Good Sticky

 

[WRCVR4]

Its recommended in a VR4 to gap to .7-.8 not the 1.1 :wink:

Good Sticky

 

[GVR40]

actually every spark plug catalogue and every owners manual and every workshop manual i have read roccomend the 1.1mm gap for the vr4 :lol:

 

[GVR40]

actually every spark plug catalogue and every owners manual and every workshop manual i have read roccomend the 1.1mm gap for the vr4 :lol:

 

[GVR40]

actually every spark plug catalogue and every owners manual and every workshop manual i have read roccomend the 1.1mm gap for the vr4 :lol:

 

[Entaran]

Or you could read the Factory service manual which states 0.7-0.8mm

Course I doubt you did.

Here, if you wan't i'll even offer to screendump the page and post it here.

gap your vr4 at 1.1 if you want, watch it misfire like a bitch. Ask bobwrinkle.

 

[Entaran]

Or you could read the Factory service manual which states 0.7-0.8mm

Course I doubt you did.

Here, if you wan't i'll even offer to screendump the page and post it here.

gap your vr4 at 1.1 if you want, watch it misfire like a bitch. Ask bobwrinkle.

 

[Entaran]

Or you could read the Factory service manual which states 0.7-0.8mm

Course I doubt you did.

Here, if you wan't i'll even offer to screendump the page and post it here.

gap your vr4 at 1.1 if you want, watch it misfire like a bitch. Ask bobwrinkle.

 

[rob323]

The following pertains specifically to vr4's but may also apply to other models.

If you are running NGK BPR6ES plugs, gapped to 0.7mm or so and start getting a misfire at high rpm (even if running standard boost), try a set of NGK BPR7ES plugs, again gapped to 0.7 mm. These are one heat range colder and may fix the problem (did for me anyway).

 

[ubermotive]

for a mirage 1.5L that has been turbocharged. should i be running a colder or hotter plug?

 

[GVR40]

same heat range, smaller gap

 

[ubermotive]

any recommendations for gapping?

 

[rob323]

unless you are running more than 10psi of boost or are getting niggling misfires or melting electrodes off the plugs, then I would start looking at some colder plugs.

 

[mrcyborg]

i use the bp7e plugs that have a v groove in them and find them very good. gapped to .8 i never have trouble even at high boost levels.

for a turbo mirage 1.5 go for one mark cooler plug gapped to the .7 .8 like the other turbo cars.

 

[EVOCPE]

A quick run down of the part numbers. Each letter or number has significance in the NGK part number, but the same letter may hold a different meaning depending on where it is placed. Here is a rundown of our part number:

Here's a typical NGK spark plug part number: BPR6EVX-11.

B Thread diameter = 14 mm
P Construction = Projected Insulator Type
(K) Construction = Hex size 5/8 in, projected tip
R Construction = Resistor Type
6 Heat Rating Number = 2 Hot -> Cold
E Thread Reach = 12.7 mm
S Firing End Construction = Standard 2.6 mm diameter center electrode
(VX) Firing End Construction = High performance platinum
(K) Firing End Construction = 2 ground electrodes
(N) Firing End Construction = Special side electrode
(-11) Gap Width = 1.1 mm (0.044 in)

B Thread diameter = 14 mm
P Construction = Projected Insulator Type
R Construction = Resistor Type
6 Heat Rating Number = 2 Hot -> Cold
E Thread Reach = 12.7 mm
K Firing End Construction = 2 ground electrodes
N Firing End Construction = Special side electrode

 

[GeoKez]

Hey,

Just wanted to pass on a bad experience from the weekend with Platinum Plus plugs from Bosch. In a 4G93t, the spark got blown out at about 4500rpm @15psi, complete ignition break down. I closed the gap to see if it made a difference ( I know you shouldn't play with the gap on these types of plugs, but I was desperate for some track time) a smaller gap around 0.6mm and it got better, but not by much, I got to about 5000 and 16psi. Quickly getting the shits on, a mate who had dropped in to watch the session, offered to go to SCA and grab me some cheap $4 NGK's.

End result:
$84 Platinum Plus plugs = Don't work over 15psi

$16 NGK BKR6E = Car can make 20psi through to 7200rpm

I changed the plugs when I did an engine and box oil change, 'cause I figured it was the right thing to do. The old plugs are Iridium's. I have kept them so they will be going back this week.

Whats going on then? Is this common knowledge and I just missed the thread?