Spark plugs

[Dragon Humper]

Yes they do. You will never blow the tip off of these, you will frag your engine before these will give you trouble.

It's funny that AutoLite makes a good ground level consumer product yet Fram makes the crapiest filters out there, they are both made by Honeywell. The Fram race filters are pretty good but are 4 times the money of a Wix filter for the same quality. Corperate sponsorship can suck sometimes, you have to promote a product that you know is a piece of sh*t.



Jon.

[nelsonmxmarc]

Anyone mention JIC vs. ISO in terms of length?

I didn't bother to read the whole thread because it's packed full of, "what should i use???"..

http://www.ngk.com/sparkplug411.asp?kw=JIS&mfid=1

ISO (International Standards Organization) is an international organization which establishes standards for the production of automobiles and their parts. The ISO height for a spark plug from the seat to the top of the terminal nut is 50.5mm (1.98").

JIS (Japanese Industrial Standard) is a Japanese organization which establishes standards for the production of Japanese automobiles and their parts. The JIS height for a spark plug from the seat to the top of the terminal nut is 53mm (2.086").

Basically, if you're running iridiums (BCPR(5,6,7)EIX-(8,11)), which 99% of us do when we first purchase our car, you're running a JIC plug. Typically all BCP and PFR plugs are JIC, meaning they're the proper length from the seat to the top terminal for OUR cars.

When you switch to copper like most do for racing applications, you will notice that (besides the BCPR line) they're ISO.
BKR7ES, BKR7E and etc, are ISO meaning the seat length to the top terminal is SHORTER.

There is no reason to fret, however, and though it seems like it would affect performance, it does not. It's ~2.5mm difference, and our coils are more than appropriate to accomodate this size of a plug.

[mitch32]

The rb26 (and rb20) coils after years the coil springs get squished and if you use the ISO they might not touch properly. You can just take off the coil boot and elongate the coil spring.

I run BCPR7ES just cause I got them at a good price. It was 2.30$ each BCPR7ES plug and I switch plugs every oil change, dyno, drag, and lapping event. I'm sure the racing coppers are better, but for the price the BCPR7ES work amazing (BKR's are usually around the same price).

[nelsonmxmarc]

You can just take off the coil boot and elongate the coil spring.

Good point! A lot of people should do this when they notice hesitation issues as well, as sometimes the small spring inside comes off its contact point through years of use, oxidation if water ever entered the boot, and harsh vibrations.

[RHDskyline]

so i don't want to start a new thread.


All this talk about brands and numbers is making my headspin



Can i walk into Canadian tire and get a spark plug that will work in my engine

RB25det
Neo turbo
intake
exhaust
FMIC
splitfire coilpacks
14 psi of boost.


I don't want to have to order sparkplugs but i don't want to put shitty ones in my car

I live in lethbridge, not a whole lot of places to get spark plugs

Canadian tire, Napa, auto value,

basic places like that


if you have an answer for me

text me 403-315-0340 and let me know, and i will come back and look at your answer

thanks

Nathan

[Nismo_line]

i bought the BCPR6EIX-11 and everyone is saying that the iridiums the tip will blow i just put mine in a ran great with them put 100km on them just wondering if i should change them to coppers or leave them ??

[markc32]

u know what from all thats been said id stay away from the iridiums....im using the ngk vpower coppers atm...bcpr6e-11

[Nismo_line]

well i just spent 40 bucks on plugs and some say they are fine some say they are bad anyone have issues with them if so what plug should i run on my 92 gts fmic turbo back exhaust intake and 1 bar of psi??

[markc32]

i bet some1 will say use one heat range cooler and gap to .8mm instead of the 1.1mm and use copper..i dont suggest using the STANDARD copper coz it wont last long...dont use champion plugs coz they seize on the head....so if it was my car i say use

ngk vpower jis bcpr7e or iso bkr7e both are .8mm gap and cooler.....does the gts use a stock heat range 6? if so 7 is cooler good for one bar boost

or some1 correct me

platinums niridiums are marketing and for ppl that dont want to replace plugs 2x a year or 3....but its proven for turbo cars like ours....plats irid are useless

[nelsonmxmarc]

i bet some1 will say use one heat range cooler and gap to .8mm instead of the 1.1mm and use copper..i dont suggest using the STANDARD copper coz it wont last long...dont use champion plugs coz they seize on the head....so if it was my car i say use

ngk vpower jis bcpr7e or iso bkr7e both are .8mm gap and cooler.....does the gts use a stock heat range 6? if so 7 is cooler good for one bar boost

or some1 correct me

platinums niridiums are marketing and for ppl that dont want to replace plugs 2x a year or 3....but its proven for turbo cars like ours....plats irid are useless

A bit contradicting no?

NGK Vpower, both JIC and ISO versions (BCPR7E + BKR7E) are standard copper plugs..

Stock plugs are PFRA5-11, platinum. Alternative plug was the FR-5, Std copper.

Heat range for a stock GTST plug is a 5, 1 colder would then be 6 and so forth.

Copper plugs will last a season, but tolerances change more rapidly than iridiums due to their relatively low wear resistance.


Heat range of 6 is better for stock application. Runs cleaner and has no break ups on hot / high revving applications.
7 is good for a car that is running considerably more boost thus higher temps.
Plug gap should be .8, regardless of the stock being 1.1.

[nelsonmxmarc]

i bought the BCPR6EIX-11 and everyone is saying that the iridiums the tip will blow i just put mine in a ran great with them put 100km on them just wondering if i should change them to coppers or leave them ??

Do it next time. They'll be fine for a season depending on engine mods, but im assuming youre running stock right now so i wouldnt stress.

[Nismo_line]

A bit contradicting no?

NGK Vpower, both JIC and ISO versions (BCPR7E + BKR7E) are standard copper plugs..

Stock plugs are PFRA5-11, platinum. Alternative plug was the FR-5, Std copper.

Heat range for a stock GTST plug is a 5, 1 colder would then be 6 and so forth.

Copper plugs will last a season, but tolerances change more rapidly than iridiums due to their relatively low wear resistance.


Heat range of 6 is better for stock application. Runs cleaner and has no break ups on hot / high revving applications.
7 is good for a car that is running considerably more boost thus higher temps.
Plug gap should be .8, regardless of the stock being 1.1.

so get one of these plugs and as i stated above i am running fmic turbo back exhaust intake and 1 bar of boost thanks for the help everyone

[clone]

I found the auzzy site was pritty accurate for each engine:

http://www.ngkspark.com.au/sparkplug_imports.php

Your Vehicle:
8/91 - 8/93 Nissan Skyline 2000 Turbo RB20DET

Spark Plug Part No.
Recommended Plug PFR6A-11
BCPR6EIX-11


Your Vehicle:
5/89 - 8/91 Nissan Skyline 2000 Turbo RB20DET

Spark Plug Part No.
Recommended Plug PFR5A-11
BCPR5EIX-11

[nelsonmxmarc]

We know. But this has been discussed NUMEROUS TIMES. Avoid iridiums, for both reliability and price.

PFRA are basically BCPR E and BKR E but the S (std) version of these. Also, PFR's are platinum, also not GREAT for boosted applications..

Copper.

[DRIVER_R32]

NGK 4588 PFR5A-11 Double Platinum Spark Plug
SKU: #PFR5A-11
ITEM : # NGK4588
BRAND : NGK
Plug Specifications
Thread Size: 14mm
Hex Size: 5/8" (16mm)
Reach: 19mm (3/4")
Seat Type: Gasket
Gap: .044" (1.1mm)
Heat Range: 5
Terminal Type: Solid
Resistor: Yes
Overall Height: JIS
Thread Pitch: 1.25mm
Brand: NGK
Center Electrode
Type: Fine Wire
Material: Platinum
Projection: Projected
Ground Electrode
Type: Standard
Material: Platinum
Quantity: 1
OEM REPLACEMENT-NISSAN RECOMMENDED.
PLATINUM TAPERED TIP, ANTI FOULING JIS FORMAT! 1.1 GAP! GASKET!
$12.06 EACH


NGK 7088 BCPR6EGP Single Platinum Spark Plug
SKU: #BCPR6EGP
ITEM : # NGK7088
BRAND : NGK
Plug Specifications
Thread Size: 14mm
Hex Size: 5/8" (16mm)
Reach: 19mm (3/4")
Seat Type: Gasket
Gap: .040" (1.0mm)
Heat Range: 6
Terminal Type: Removable Nut
Resistor: Yes
Overall Height: JIS
Thread Pitch: 1.25mm
Brand: NGK
Center Electrode
Type: Fine Wire
Material: Platinum
Projection: Projected
Ground Electrode
Type: Taper Cut
Material: Nickel
Quantity: 1

PLATINUM TIP THIN 1.0 GAP $3.32 EACH


NGK 5689 BCPR6EIX Single Iridium Spark Plug
SKU: #BCPR6EIX
ITEM : # NGK5689
BRAND : NGK
Plug Specifications
Thread Size: 14mm
Hex Size: 5/8" (16mm)
Reach: 19mm (3/4")
Seat Type: Gasket
Gap: .032" (0.8mm)
Heat Range: 6
Terminal Type: Solid
Resistor: Yes
Overall Height: JIS
Thread Pitch: 1.25mm
Brand: NGK
Center Electrode
Type: Fine Wire
Material: Iridium
Size: 0.6mm
Projection: Projected
Ground Electrode
Type: Taper Cut
Material: Nickel
Quantity: 1
IRIDIUM TIP THIN , THIN GROUND, 0.8 GAP $8.06 EACH


NGK 2330 BCPR6ES Nickel Spark Plug
SKU: #BCPR6ES
ITEM : # NGK2330
BRAND : NGK
Plug Specifications
Thread Size: 14mm
Hex Size: 5/8" (16mm)
Reach: 19mm (3/4")
Seat Type: Gasket
Gap: .036" (0.9mm)
Heat Range: 6
Terminal Type: Solid
Resistor: Yes
Overall Height: JIS
Thread Pitch: 1.25mm
Brand: NGK
Center Electrode
Type: Standard
Material: Nickel
Size: 2.5mm
Projection: Projected
Ground Electrode
Type: Standard
Material: Nickel
Quantity: 1
NICKLE TIP THICK, THICK GROUND 0.9 GAP $2.89 EACH


NGK 2215 BKR6EP-8 Double Platinum Spark Plug
SKU: #BKR6EP-8
ITEM : # NGK2215
BRAND : NGK
Plug Specifications
Thread Size: 14mm
Hex Size: 5/8" (16mm)
Reach: 19mm (3/4")
Seat Type: Gasket
Gap: .032" (0.8mm)
Heat Range: 6
Terminal Type: Solid
Resistor: Yes
Overall Height: ISO
Thread Pitch: 1.25mm
Brand: NGK
Center Electrode
Type: Fine Wire
Material: Platinum
Projection: Projected
Ground Electrode
Type: Standard
Material: Platinum
Quantity: 1
TAPERED PLATINUM TIP, 0.8 GAP $7.83 EACH


NGK 4644 BKR7E Nickel Spark Plug
SKU: #BKR7E
ITEM : # NGK4644
BRAND : NGK
Plug Specifications
Thread Size: 14mm
Hex Size: 5/8" (16mm)
Reach: 19mm (3/4")
Seat Type: Gasket
Gap: .036" (0.9mm)
Heat Range: 7
Terminal Type: Solid
Resistor: Yes
Overall Height: ISO
Thread Pitch: 1.25mm
Brand: NGK
Center Electrode
Type: V-Cut
Material: Nickel
Projection: Projected
Ground Electrode
Type: Standard
Material: Nickel
Quantity: 1
N ICKLE V TIP, 0.9 GAP ISO $3.09 EACH



NGK 5881 BKR7EKU Nickel Spark Plug
SKU: #BKR7EKU
ITEM : # NGK5881
BRAND : NGK
Plug Specifications
Thread Size: 14mm
Hex Size: 5/8" (16mm)
Reach: 19mm (3/4")
Seat Type: Gasket
Gap: .024" (0.61mm)
Heat Range: 7
Terminal Type: Solid
Resistor: Yes
Overall Height: ISO
Thread Pitch: 1.25mm
Brand: NGK
Center Electrode
Type: Standard
Material: Nickel
Size: 2.5mm
Projection: Extended Projection
Ground Electrode
Type: Multi-Ground
Material: Nickel
Quantity: 2
NICKLE TIP THICK, 2 GROUNDS , 0.61 GAP $6.11 EACH



NGK 4285 BKR7EQUP Single Platinum Spark Plug
SKU: #BKR7EQUP
ITEM : # NGK4285
BRAND : NGK
Plug Specifications
Thread Size: 14mm
Hex Size: 5/8" (16mm)
Reach: 19mm (3/4")
Seat Type: Gasket
Gap: .020" (0.5mm)
Heat Range: 7
Terminal Type: Solid
Resistor: Yes
Overall Height: ISO
Thread Pitch: 1.25mm
Brand: NGK
Center Electrode
Type: Standard
Material: Platinum
Size: 2.5mm
Projection: Projected
Ground Electrode
Type: Multi-Ground
Material: Nickel
Quantity: 4
PLATINUM TIP 0.5GAP 4 GROUNDS $8.31

JUST FOR REFERENCE... STRAIGHT FROM NGK WEBSITE.