Teşekkürler Deniz ;
Şu yazısına istinaden yaptım Stelio nun ;
Problems using stock (unmodified) spark plugs
After many tests and research on cars we tuned we noticed that:
1) Cars running on stock ECU configuration, spark plug wear was about 0.2mm at 30.000km. Peugeot recommends changing spark plugs at 40.000km, if you use your car regularly. But that is still too much.
2) All the cars which had worn spark plugs experienced increased knocking or misfiring. The problems were noticed specially at low revs and mid revs with high boost - at about 3000rpm to 4000rpm with any boost over 1.1bars (2.1bars absolute pressure).
3) To the driver, all these problems would feel like loss of torque, or boost cuts.
4) When spark plug wear would go over the plug's potential to fire, there would be sputtering at high revs.
Bu sorunlar bendeki sorunlara çok benziyor ;
Ve çözümü de şöyle sunmuş;
Solutions to avoid problems from worn spark plugs
1. Renew spark plugs with new ones from Peugeot/BMW
2. Use a smaller spark gap. Using a spark gap gauge, narrow the gap with caution.
3. Renew spark plugs every 15.000 to 20.000 km. Ignition problems caused by worn spark plugs have a bad impact in engine economy.
4. Cars running on our ECU upgrades seem to have longer spark plug life, because of reduced combustion temperatures. We still recommend renewing them every 20.000km at most.
Tam senin sorunun cevabı da böyle ;
The spark plugs are made of platinum, to withstand the very high combustion temperatures in direct injection engines. Platinum tips are very durable and almost impossible to melt because of improper use / bad driving.
Their nominal spark gap is 0.75mm (0.8 according to NGK). For a turbocharged 1.6thp engine working at stock boost, this gap is enough. But once an ECU upgrade is installed and the engine starts working at raised boost (1,3 bars for example), many problems rise because of the big spark gap.
Because of the big gap the plug might not fire, or miss at high speed (called sputtering)- which is usually accompanied with a "random engine misfire" check engine light.
For raised boost we recommend narrowing the gap to at least 0.7mm or 0.65mm for best results and no problems.
Bu arada geçen attığım mailde brisk lerden bahsettim bana
-niye aldın ki gerek yoktu.O bujiler turbo araçlara göre dizayn edilmemiş dedi
Bizim buji problemlerimizi de yukarda bahsettiğim şekilde max 20.000 km de değiştirme ve tırnak aralığını 0.7mm veya 0.65 e düşürme şeklinde çözmüşler..