3-2-1 ignition

[Mr. B]

Just finished reading Steve Heath's excellent book. Very good and all that... One thing I'm curious about though. There is a picture of his 5.2 'John Eales' special engine and it has the coil pack distributor less ignition system from the later range rover. This would seem to be a very worthwhile upgrade as a fully mappable fuel and ignition system should yield more power, more economy, better running and lower emissions and,of course, very easy tuning. Why didn't TVR phase this this engine in when it became available? Also, and more crucially to a PHer, has anybody done this upgrade? If so then how easy, how much etc...?

[shpub]

It uses the coil packs but has a DTA based custom injection/ignition system. You don't to want to know the price....

The later Rover system is not a straight swap. Could be done but a cheaper way of getting a mapped ignition is to use a 3rd party ignition mapper than uses the distributor to provide a timing point and then maps from there. £300 for the unit ish plus fitting plus rolling road set up. Budget for double that.

Get a Mark adams Tornado for the standard ECU and you are there. Alternatively you could fit a aftermarket system like the DTA or Emerald. Costs quickly start to escalate beyond the cost of the ECU because of all the additional bits and pieces and fettling that is needed.

>> Edited by shpub on Monday 4th August 11:34