Split fire or denso iridium plugs

[salash]

which plugs would be better for my vti prosmatic splitfire or denso iridium .can anyone suggest

[Trueno20v]

Plugs preform better when coupled with high performance ignition systems or uprated spark generation. Its a useless expense.

Stick to stock. I'm pasting an NGK Spark Plug Chart for reference.

The following is what you'll see inscribed on the elctrode coating(white portion) on your SP. Heat ranges and operating temperatures are descrined in detail.

B CPR 6 E S -11

First letter from example (B):
Thread Diameter
A 18mm
B 14mm
C 10mm
D 12mm
J 12mm

Second box from example (C, P, R):
Letter Construction
C Hex size five eighth"
K 5 over 8" projected tip (ISO)
M Compact type
P Projected insulator type
R Resistor type
U Surface or semi-surface discharge type
Z Inductive resistor

Third box from example (6):
Heat Range
2 Hot - 6 Cold

Fourth box from example (E):
Letter Thread Reach
E 19mm (Three fourth")
F Tapered seat
H 12.7mm (Half")
L 11.2mm (seven sixteenth")
No symbol:
18mm?=12mm reach
14mm?=9.5mm (three eigth") reach

Fifth box from example (S):
Letter Firing End Construction
A Special design
B Special design for Honda CVCC
C Low angle ground electrode
G Fine wire nickel alloy center electrode
GV Gold-palladium center electrode
Special construction of V-type
Racing use
H Partial thread
K 2 ground electrodes for Toyota,BMW,
L Half heat range
LM Compact type for lawn mower
M 2 ground electrodes for Mazda rotary engine
N Special side electrode
P Premium platinum
Q 4 ground electrodes
R Special ground electrode
S Standard 2.6mm? center electrode
T 3 ground electrode
U Semi-surface discharge
V Fine wire gold-palladium center electrode
VX High performance platinum
W Tungsten electrode
X Booster gap
Y V-grooved center electrode
Z Thick 2.9mm? center electrode

Sixth box from example (-11):
Number Gap
-8 0.8mm (0.032")
-9 0.9mm (0.036")
-10 1.0mm (0.040")
-11 1.1mm (0.044")
-13 1.3mm (0.050")
-14 1.4mm (0.055")
-15 1.5mm (0.060")
-20 2.1mm (0.080")

Note that not all 6 fields will always be used, such as in BKR6EY.A hot-cold plug designates a plugs ability to retain or dissapate combustion heat! Lower grade fuel requires hootr plugs while high grade work equally well with both depending upon application.

[sali2002]

hello!
i think denso iridium are better
Thanxx

[Trueno20v]

Defintly. Much better than Palladium or Nickel alloy.

Why i say its a useless exercise, allow me to illustrate.

You want to pomp 10 ltrs of water from Reservoir A to Reservoir B in 1 minute. You have a water pump that has a capacity of pumping 5 or 7 ltrs. per minute. Now if you inrease the Diameter of the conducting pipes no matter how much you'll still get across 5-8Ltrs a Minute.
Not 10
But if you installed a pump with a capacity of pumping 20 ltrs/m you'll finish the job in 30 secs.

The correlation is, if your ig coil is puttin out 10 thousand volts, you could but anything in there, and the plugs would conduct 10,000V be it Iridium, or Titanium. The true potential of these parts is available with matching high performance equipment. Otherwise it bears similarity to a wrestler doing the dishes...