Moet ontsteking bij LPG juist meer graden voor TDC zijn dan bij benzine of juist andersom?
Ramon Dijkema
109"V8 / RR3.9EFi
Timing ontsteking
Re: Timing ontsteking
Vroeger,..dan bij benzine
wanneer de ontsteking nu nog op benz. staat kan je hem zeker 2 a 3 graden
vroeger stellen.
gr,
Roland
wanneer de ontsteking nu nog op benz. staat kan je hem zeker 2 a 3 graden
vroeger stellen.
gr,
Roland
Re: Timing ontsteking
meer idd
check ook zoekfunctie voor onderbouwing en aantal graden
gr.
peter
check ook zoekfunctie voor onderbouwing en aantal graden
gr.
peter
Re: Timing ontsteking
Laatst een inbouw manual gedownload en daar wordt expliciet gezeg de ontsteking niet te vervroegen, dit zelfde hoorde ik in engeland bij een garage die lpg inbouwt.
LPG has a high octane number and slower
combustion speed compared to petrol.
It is usually assumed that the engine’s ignition
needs greater advance when running on LPG.
THIS IS NOT THE CASE. The ignition advance curve
for LPG is different from that required by
petrol. At low rpm- figures LPG requires
approximately 10% more advance, whilst at
high rpm-figures 10 – 20% less advance is
required.
The advance curve for LPG is less critical that
for petrol. Due to the fact that most vehicles
operate with a dualfuel capability, it would be
unwise to make any alterations that would
effect the performance of the engine during
petrol-operation.
fred101
LPG has a high octane number and slower
combustion speed compared to petrol.
It is usually assumed that the engine’s ignition
needs greater advance when running on LPG.
THIS IS NOT THE CASE. The ignition advance curve
for LPG is different from that required by
petrol. At low rpm- figures LPG requires
approximately 10% more advance, whilst at
high rpm-figures 10 – 20% less advance is
required.
The advance curve for LPG is less critical that
for petrol. Due to the fact that most vehicles
operate with a dualfuel capability, it would be
unwise to make any alterations that would
effect the performance of the engine during
petrol-operation.
fred101