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Aldon Amethyst mappable ignition system - TPS version AM04T

Aldon Amethyst mappable ignition system - TPS version AM04T
No Tax, Each £190.13 Taxed, Each £228.16
No Stock - ordered on demand
Free UK Delivery Available
This mappable ignition system connects to any distributor si....


This mappable ignition system connects to any distributor simply and discreetly, retaining the classic look. It gives full user control over advance characteristics for vacuum, boost or TPS. It's key features are:

  • Compatible with electronic ignition units or points
  • RPM and load maps
  • Easy configuration via laptop with USB connection
  • Configurable "soft" rev limiter
  • Built in immobiliser

The Amethyst unit takes its input from the existing distributor (once advance has been locked) and calculates the required ignition advance based on RPM and either inlet manifold pressure or throttle position. The unit can be configured via a PC connected to its USB port.

The software package allows you to choose and/or modify from any of the preloaded maps or download your own existing advance curve, which can then be modified to suit your engine specification. You can switch between two of your stored maps remotely, without the need to connect to a PC.

The advance characteristic can be matched much more closely to the engine's requirements than is possible with conventional advance springs and a vacuum bulb. Benefits include improved driveability, economy and ultimately better all-round performance.

Dwell is automatically calculated to combine strong sparks at all times with minimum load on your coil. The dwell angle can be entered manually if preferred. The Amethyst also incorporates an effective immobiliser and you can set a "soft" rev limit up to 10,000 RPM.

For the most accurate results, Amethyst should be used in combination with Aldon's Ignitor electronic ignition unit. However, it can also be used with conventional points.

TPS version can be connected directly to any Throttle Position Sensor.

Additional Information

Additional Information

Part No AM04T
Fits Engine Type Universal Fit
Product Group Electronic Ignition
Replaces Part Nos AM02T
Stock Status No Stock - ordered on demand
Catalogue 2018 Page Click HERE to view this part on page 88 of our 2018 catalogue
Brand Logo Aldon
Free Shipping Free UK Delivery Available