Stealth Electronic ignition Distributor with Advance adjust replaces Lucas 25D

Venduto Vedi articoli simili EUR 87,48 Compralo Subito, EUR 15,15 Spedizione, 60-Giorno Restituzione, Garanzia cliente eBay
Venditore: stealth-ignition ✉️ (12.636) 100%, Luogo in cui si trova l'oggetto: Park Street , Hertfordshire, GB, Spedizione verso: GB e molti altri paes, Numero oggetto: 111434937401 Stealth Electronic ignition Distributor with Advance adjust replaces Lucas 25D. Brand new Electronic Distributor With adaptive Dwell and Vernier timing adjustment  Fits Dozens of cars , application is a sample of cars this distributor will fit . As a rule replaces distributors on cars  upto 1974 , but can also replace the later 45D distributor that does not have the vernier timing adjustment  INTRODUCTORY PRICES ARE ONLY AVAILABLE FOR EBAY ON-LINE PURCHASE THEY WILL NOT BE OFFERED FOR PHONE ORDERS  This is a replacement for the standard Lucas  DM2 25D  and 45D type distributor with standard off set keyway  This will fit all cars with a anti- clockwise rotation ( looking down on rotor )  and the offset keyway as shown 

This is a brand new distributor comes ready fitted with our Stealth electronic ignition , with adaptive Dwell,  and a new  Red Rotor 

What is Dwell and what is "Adaptive Dwell "? 

Dwell is the measurement of the time an ignition coil charges before it creates a spark. 

This is normally expressed as a percentage of time in each engine cycle or a number of degrees in the rotation of the distributor.  For example, in a 4 cylinder engine the distributor will rotate 360 degrees. Each cylinder will account for 90 degrees of the rotation. The dwell angle is normally set by adjusting the points gap.   If  the dwell angle is set at 45 degrees then this means the coil is charging for 45 degrees of rotation and at rest for the other 45 degrees of rotation. This can also be expressed as 50 % dwell time.

With traditional points and other electronic ignition systems the dwell time is fixed .

For example, in a system with a dwell angle set at 45 degrees ( 50%) the coil will charge the for 50% of the time regardless of engine speed. This means when the engine is turning slowly the coil is charging for a long period of time before it sparks and by the same token charging for a short time before it sparks at high engine speeds.

Does this matter ?

Well, yes it does.  Any coil has an optimum charging time, charge for too long and the coil reaches saturation (this is the point the coil cannot hold any more current ) and begins to produce excessive heat. While it is doing this it is also drawing around 2 - 4 amps of current putting unnecessary strain on the dynamo or alternator, this in turn takes engine power and uses unnecessary fuel .

At high engine speed too short a dwell time can mean the coil has insufficient time to charge to produce the perfect spark for maximum combustion.  Setting traditional dwell time is always a compromise between low and high engine speeds.

The Stealth ignition system constantly adapts to engine speed keeping dwell time at the optimum 5 milliseconds to produce the best possible spark, keep coil temperatures down , fuel consumption low and power high .

The stealth kit will give improved motoring for years to come 

  • Condition: Nuovo
  • Part Manufacturer: AccuSpark
  • Part Manufacturer Number: 25DE
  • Classic Car Part: Yes
  • Brand Type: Aftermarket Branded
  • Brand: Stealth
  • Manufacturer Part Number: 25DE

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