Hi - I promised to report on this.. For them what don't know it's on a 1966 E-Type, 9:1 pistons (Brit, not European or American spec). For them what knows me of old I apologise for being boring.
First impression - absolutely excellent. Pulls strongly from 700rpm to
5,000 rpm (at which point the engine goes bang). It is, subjectively, far more smooth throughout the rev range - and it wasn't exactly a rough old nail before.Now the downsides. Under specific conditions, full throttle in third or fourth, between 3,000 and 3,500 there is a very brief misfire followed by two or three backfires. Doesn't happen if you are accelerating moderately gently, only if you are balls to the wall.
Then there is the issue of which version you buy. I've gone for the general "six" version. There is a specific version for the E, prefixed JAG. But this appears to have been designed by a Jaguar racer about seven years ago. Fuels have changed since then, and anyway it's a road car, not a racer.
And the matter of the curve you set. 16 choices. Factory recommended is 4; if it pinks, try 5. Other people have given opinions ranging from 9 to A. And one person had the same problem with the misfire, and gave up and went back to points. Problem is that you have to take the whole unit out to alter the curve - not an easy job on the E - it would have been good if there was a simple vernier on the side, a la distributor.
Also, it's running hot. Even in this horrible weather the Kenlowe is on 80% of the time, whereas it should only cut in if you have been stationary for several minutes.
Obvious points have been checked: fuel supply OK (new pump just fitted), coil OK, plugs OK, HT leads OK.
I emphasize this is only a preliminary report, less than 100 miles due to the failure of the fuel pump.
Next step is probably a rolling road test. Anybody know one within easy reach of Surrey/Sussex border, or possibly Surrey/Middlesex? Must be one which understands elderly cars and allows the owner to fiddle about under the bonnet while the car is running - my local one won't even let you in due to "elf n safety".
Will report further.
Geoff MacK