High Performance BRISK Silver Spark Plugs for DAIHATSU Petrol, LPG & CNG Motor Vehicles
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Fitting the Correct Spark Plugs for LPG - CNG or Petrol
Check to see what spark plugs you have fitted in your vehicle, if you have platinum or Iridium tipped spark plugs fitted they are No good for LPG or CNG there is No such thing as an iridium or platinum LPG spark plug! we recommend you replace your spark plugs with Genuine LPG / CNG spark plugs > Brisk Silver Spark Plugs are made for LPG - CNG & Petrol they have solid silver electrodes to produce a superior spark as you can clearly see in the chart below Silver has the highest Thermal & Electrical Conductivity where as Nickel, Platinum & Iridium are very poor, Silver spark plugs come in two types (YS) single electrodes for all vehicle types & The (LGS Premium) type multi electrode type theses can only be fitted to modern vehicles with electronic ignition systems they are not recommended for older vehicles with ignition points or poor ignition systems, the LGS spark plugs are specially designed by Brisk to produce incredible sparks across 2.9 mm gaps in a 360 degree firing pattern - theses are special spark plugs they cannot & do not require any adjustment they are ready to fit.

Do Spark Plugs make a Difference?
Yes 100% - Vehicles fitted with Poor Quality spark plugs produce a weak spark, to ignite a fuel with a weaker spark the engine requires a much richer fuel mixture - with poor spark plugs you will use more fuel even petrol, when running a vehicle on LPG or CNG you need a much stronger spark due to LPG & CNG being a dry fuel it is harder to ignite than petrol so you need a much richer fuel mixture! most vehicles are fitted with lambda control systems like petrol injection vehicles which correct the mixture by monitoring the exhaust emissions this can lead to a serious problem running on LPG or CNG with weak spark plugs as un burnt LPG or CNG has an affect on the vehicles lambda exhaust probe sensors which makes the sensors read incorrectly (weaker) the vehicles Ecu or lambda control system detects this & tries to correct this by increasing the fuel mixture even more although the system now thinks the mixture is correct is Not it is incorrect the engine is actually running far to Rich not only is this decreasing your fuel economy but also increasing the exhaust emissions CO & HC no longer a green conversion in some tested we have found the emissions to be much higher than petrol emissions & failed MOT's, this also has an increased affect on the engine & exhaust temperature which can seriously damage the catalytic converter due to overheating.

Common Symptoms found with Weak Spark Plugs
Poor Fuel Economy, Misfires, Poor idle, Stalling, Hesitation & Jerking under load, Less Power, Poor Performance in some cases undrivable on Lpg or Cng, Back fires, Engine management light coming on, Limp home mode, Exhaust system overheating, Lambda sensor damage, Catalytic converter damage, etc..

Spark Plug Gaps for LPG & CNG
when fitting Brisk Single Silver Electrode (YS) spark plugs it is recommended to set the spark plug gaps to the manufactures recommended gap as for Petrol unless otherwise listed for your model like (DR15YS-9) -9 being the recommended gap = 0.9 mm etc… if the gap is not listed then use the manufactures recommended on some vehicles with spark monitoring try reducing the spark plug manufactures gap by  0.1 mm to compensate for the dryer fuel - The (LGS) type spark plugs are specially designed spark plugs which produce incredible sparks across large gaps like 2.9 mm theses cannot & do not require any adjustment they are ready to fit.

Economy & Customer Feed Back on LPG , CNG & Petrol
Please Note: Fuel Economy on any fuel is very difficult to calculate as we all drive differently, all have different loads, all use different equipment & tuning of the systems, when fitting the New spark plugs the system should be retuned as most have be setup rich to work on the old type spark plugs, etc..  if you have tuning equipment you can do your own calculations by comparing the original tuning map to the new map tuning with the new plugs fitted, or by monitoring your fuel figures prior to fitting & then after, I always like to receive customer feedback of there test results, etc...!

Feed back from customer tests the results = on LPG increase in economy from 5 to 30% a few claiming more! - on Petrol up to 10% - Performance increase up to 5% - Noticeable while driving most customers say they have noticed the difference in driving the vehicle saying it is more crisp & responsive with better fuel economy, customers with prior problems like hesitation, jerking, very poor economy caused by poor spark plug ignition have found the plugs solved most problems & after retuning the system to use the correct mixture, etc...  Motor cyclist noticed the difference in power & power band smoothness as well as a slight increase in fuel economy, etc...

But note: this does not mean you will get an increase or solve any of you systems problems as many other factures must be taken into consideration & account like the increase in fuel economy can be used as power & performance depending on how you drive! plus any Vehicles faults with the petrol or LPG system/s & Poor tuning, etc...

The following Tests Mapping Charts are photos of the tuning done on a Toyota Amazon 4.7i V8 fitted with the Vogas gas injection system fitted with split fuel capability.

The First Chart (left)
fitted with Original Iridium spark plugs the results = very poor economy on LPG, System had use split fuel to inject 30% petrol under load to stop misfires juddering due to poor ignition of the fuel

The Second Chart (middle)
fitted with Standard Copper spark plugs the results = an improvement in economy & split fuel reduced to inject only 15% petrol under very hard load

The Final Chart (right)
Fitted with Brisk DOR15LGS Premium Silver spark plugs the results = increase in fuel economy by other 30% compared to Iridium spark plugs, split fuel turn off running 100% LPG, no hesitation, no misfires or juddering, map greatly reduced
Thermal & Electrical Conductivity of Spark Plugs the Best being Silver!

Spark Plug
Centre Electrode
Material

Thermal
Conductivity
(M•K)

Electrical
Conductivity
MS/m

Spark Plug
Expected Life
(Miles)

Silver

407

66

25/30,000

Copper

384

57

25/30,000

Gold

310

45

unknown

Iridium

147

18

90,000

Platinum

70

10

90,000

Nickel

59

10

10/20,000

Testes done on Toyota Amazon 4.7i V8 with original Iridium - Standard Copper & Brisk LGS spark plugs

Charts Clearly show a Good Reduction in Fuel Mixture being Injected across all Loads indexes

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To Order > Make A Note of the Plugs listed for your Model then Click the (Add to Cart) Button this will take you to a new page with the plugs listed to Buy

 
Note: Before Ordering if your model or Spark Plugs are marked with ???? marks
then you need to Email your Vehicle Details like below & Original Spark Plug Make & Number fitted - so I can confirm it is correct for your model
Model CC kW (hp) Engine Year (LGS) > LPG/CNG/Petrol (YS) > LPG/CNG/Petrol
55 Wide 0,85       LOR15LGS LR15YS
550 0,55       LOR15LGS LR15YS
850 0,85       LOR17LGS LR17YS
850 Cab 0,85       LOR17LGS LR17YS
Applause 1,6 67kW HDCF 06.89- DOR15LGS DR15YS-9
Applause i 16V 1,6 73kW HDE 09.97- DOR15LGS DR15YS-9
Applause i,i 4WD 1,6 77kW HDE,HEE 06.89- DOR15LGS DR15YS-9
Applause,i,i 4WD 1,6 66kW HDCF,HDE 06.89- DOR15LGS DR15YS-9
Bertone 184BEO 2,7 95kW 276KB   LOR17LGS LR17YS
Cab van 1000 1,0 33kW CB 41 10.85- LOR17LGS LR17YS
Cab van S 75 V 1,0 33kW CB 41 01.85- LOR17LGS LR17YS
Charade 1,0 38kW CB 23 OHC 03.87- LOR17LGS LR17YS
Charade 1,0 38kW CB OHC 03.87- LOR17LGS LR17YS
Charade 1,0 50kW CB OHC 03.87- LOR17LGS LR17YS
Charade 1,3   HCC OHC 09.88-10.90 DOR15LGS DR15YS-9
Charade 16V 1,3   HCC SOHC 11.90-12.92 DOR15LGS DR15YS-9
Charade Turbo G100 1,0 39kW CB 23 03.87-   LR17YS
Charade Turbo 1,0 50kW CB 61 03.87-   LR17YS
Charade Turbo 1,0 50kW CB OHC 03.87-   LR17YS
Charade Turbo G 11 R 1,2   CB 60 02.83-   LR15YS
Charade i G100 1,0 40kW CB 90 SOHC 11.90-12.92 LOR17LGS LR17YS-9
Charade i 1,3 66kW HCE OHC 09.88-10.90 DOR15LGS DR15YS-9
Charade i 16V 1,3 55kW   05.96- DOR15LGS DR15YS-9
Charade i 16V 1,3 62kW HCE 01.93- DOR15LGS DR15YS-9
Charade i 16V 1,3 66kW HCE SOHC 11.90-12.92 DOR15LGS DR15YS-9
Charade i 16V G203 1,5 66kW HEE 09.94- DOR15LGS DR15YS-9
Charade i 16V GTI 1,6 77kW HDE 01.93- DOR15LGS DR15YS-9
Charade i,i 4WD 1,3 66kW HCE OHC 06.88-10.90 DOR15LGS DR15YS-9
Charmant 1,2   3K,K-J 11.74-02.78   LR15YS
Charmant 1,3   4K 03.78-07.81   LR17YS
Charmant 1,3 48kW 4KC 11.81-07.87   LR17YS
Charmant 1,3 55kW 4K 10.81-   LR17YS
Charmant 1,3 55kW 4KU 08.81-07.87   LR17YS
Charmant 1,3 55kW 4KU 08.81-07.87   LR17YS
Charmant 1,4 63kW 4T,T-U,J 11.73-07.81   LR15YS
Charmant 1,5   3AU 10.83-07.87   LR17YS
Charmant 1,5   3AU 10.83-07.87   LR17YS
Charmant 1,6 55-61kW 2T 08.81-08.83   LR17YS
Charmant 1,6 56kW 4A 08.83-07.87   LR17YS
Charmant 1,6 61-57kW 4A 09.81-07.87   LR17YS
Charmant 1,6 61kW 2T 08.81-   LR15YS
Charmant 1,6 61kW 4A 08.83-   LR17YS
Charmant 1,6 65kW 12T-U 03.78-07.81   LR17YS
Consorte 1,2   3K,K-U 05.74-10.77   LR17YS
Consorte 1000 1,0   FE 05.74-10.77   LR17YS
Copen L880K 0,66 50kW JB-DET 2004 - DOR15LGS DR15YS-9
Cuore 550 0,55   EB 10.85-   LR15YS
Cuore 550 0,55 21kW AB10 01.76-09.80   LR15YS
Cuore 800 0,8   ED 10 10.85-   LR15YS
Cuore 800 0,8 30kW ED 10A 10.86-10.88   LR15YS
Cuore 800 4x4 0,8 32kW ED 10 03.87-   LR15YS
Cuore L501 0,85 32kW ED20 SOHC 05.95-   LR15YS
Cuore L55 0,5 20kW AB 30 10.80-09.85   LR15YS-9
Cuore L60 0,6 22kW AD 10 10.80-09.85   LR15YS
Cuore L80 0,8 33kW   09.87-   LR15YS
Coure L701 1,0 40kW EJ-DE 06.98- 2001 DOR17LGS DR17YS-9
Coure L701 1,0 43kW EJ-VE 09.01- DOR17LGS DR17YS
Coure L251 1,0 43kW EJ-VE 05.03- DOR17LGS DR17YS
Cuore Mira 4WD 0,6 22kW AB 10.80-09.85   LR15YS
Cuore Mira Turbo 0,5 30kW AB 10.80-09.85   LR15YS
Delta 1,2   3K-J 12.75-02.78   LR15YS
Delta H-KD 11 1,3   4K-J 01.78-   LR15YS
Domino           LR15YS
F 20 1,6 49kW 12R 09.76-03.84   LR15YS
F 25 1,6 49kW 12R 09.76-03.84   LR15YS
F 80 2,0 64kW 3Y 08.84- LOR17LGS LR17YS-9
Feroza i 16V 4WD 1,6 63kW HDC 10.88- DOR15LGS DR15YS-9
Feroza i 16V 4WD 1,6 70kW HDE 10.88- DOR15LGS DR15YS-9
Fourtrak 2,0     1986 -   LR17YS-9
Fourtrak 2,2   DL52 1986 -   LR17YS-9
Gran Move 1,0 40kW EJ-DE 10.99- DOR15LGS DR15YS
Gran Move 1,5 66kW HE-EG 04.97- DOR15LGS DR15YS-9
Gran Move 1,6 67kW HD-EP 07.99- DOR15LGS DR15YS-9
Hijet 850 4WD 0,85 33kW CB 07.86-11.92 LOR17LGS LR17YS
Hijet 1000,1000 4WD 1,0 33kW CB 07.86-11.92 LOR17LGS LR17YS
Hijet S85 0,9 33kW CB41   LOR17LGS LR17YS
Hijet S86 0,9 33kW CB41   LOR17LGS LR17YS
Hijet S75 0,9 33kW CB41   LOR17LGS LR17YS
Hijet S77 0,9 33kW CB41   LOR17LGS LR17YS
Hijet S76 0,9 33kW CB41   LOR17LGS LR17YS
Hijet 1,3 48kW HC-ES 2000 - DOR15LGS DR15YS
Mira 0,85     1993 - LOR15LGS LR15YS-9
Move 850 0,9 31kW ED20 SOHC 01.97- LOR15LGS LR15YS-9
Move 1,0 40kW EJ-DE 10.99- DOR15LGS DR15YS
Piaggio-Hijet S85 0,9 33kW CB41   LOR15LGS LR15YS
Rocky 4x4 2,2 67-69kW 4Y 05.93- LOR17LGS LR17YS
Rocky,Wildcat 2,0 63kW 3Y 03.87-10.88 DOR17LGS DR17YS
Sirion i 1,0 29kW EJ-DE 06.98- DOR15LGS DR15YS
Sirion i 12V 1,0 40kW   05.99- DOR15LGS DR15YS-9
Sirion 1,3 75kW K3-VE2 09.01- DOR15LGS DR15YS-9
Sparcar 550 0,5   AB20 03.77- LOR15LGS LR15YS
Sparcar S70 0,8 29kW CD20 09.83-05.86 LOR15LGS LR15YS
Sportrak 1,6       DOR15LGS DR15YS-9
Taft 1,6     1982 - LOR17LGS LR17YS
Terios J100 1,3 61kW HC-EJ 09.97- DOR15LGS DR15YS
Terios J102 1,3 63kW K3VE 05.00- DOR15LGS DR15YS-9
Valera 1,5 66kW HE-EG 1995 - DOR15LGS DR15YS-9
Wildcat F10 0,95 30kW FE      LR15YS
Wildcat F20 1,6   12R-J 09.76- LOR17LGS LR17YS
Wildcat F25 1,6 48kW 12R   LOR17LGS LR17YS
Wildcat F80 2,0   3Y 06.84- LOR17LGS LR17YS
Wildcat F85 2,0 65kW 3Y   LOR17LGS LR17YS
Wildcat Rocky 2,0 65kW 3Y 06.84- LOR17LGS LR17YS
YRV (M201) 1,0 43kW EJ 08.00- DOR17LGS DR17YS
YRV 1,3 64kW K3-VE 01.01- DOR15LGS DR15YS
YRV Turbo 1,3 95kW K3-VET 2002 - DOR15LGS DR15YS
 
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