And going back to the whole "BSM is reversible" line..
well, of course it is... but here's the thing...
when you remove one of the twin dizzes and go to single, you also need to remove the old drive spline out the unused inlet camshaft, and replace the missing dizzy with a cover... no? If yes, ... How easy it is this to reverse and re-install the spline drive? and how long does it take?
Further more.... SHOULD IT MATTER TO YOU.... if you have an original looking system, and you're into doing show'n'shine and other club stuff... well, you could, for instance, turn up at the club rally... score perfect originality marks on show'n'shine day, then blast off to the track day without having to change your ignition and enjoying the benefits of superbly tunable and reliable ignition...
of course, it may not matter to you. Did I say that enough yet? Poor old PPP (you can guess what the extra P stands for), has his knickers in a twist so I want to make it quite sure that if originality doesn't matter to you then the BSM is truly great... it is even MORE tunable than the ICE, should you need it, and should you have a lap top handy, with a good battery or power supply.
The poor old ICE system has these clunky old buttons that you have to actually press yourself, with a finger... imagine the effort! And should there be a power shortage, then you'll have to use a torch to see what you're doing.
Of course, again, the BSM system can also look perfectly original (except for the knock sensor and throttle pot), but to be original on many Ferraris, you need twin systems, so this puts the cost up of course.
The ICE kit for TWIN dizzy is around $4k for parts as mentioned earlier, but for a single dizzy car like Dino, or boxer for example, it's a lot less again.... half that! Curiously!
So, one more time, especially for PPP, I love the BSM system too... it's great and very hard to pick fault with, and I'm not, nor haven't, nor will....
It's just that as various people have asked me, it IS possible to have perfectly original looking tunable programmable ignition, at a reasonable price, that is every bit as reliable as the BSM.
If you have perfectly healthy advance weights, and this is possible despite what PPPP says... you can simply remove the points, fit two triggers into one master dizzy and remove entirely the other advance system to completely avoid the synchronisation issues of a twin mechanical set up... you just run one master and one slave dizzy, with two units running off two triggers within one of the dizzies.... then a reasonably simple re-calibration job on the advance, and it'll perform incredibly (b27 will attest) and run reliably for many many many years.
I only got into the ICE system when I found a dizzy with completely worn advance system... this was due to deferred/lack of maintenance... simple annual servicing would have made it last many times longer, and a simple test/calibration once every 5 or 8 years, or longer even, would keep it running just fine.
You really DON'T need to spend many thousands on your ignition.
Of course, I put a mark up on things I buy and on-sell... but this is normal business practice and I am not greedy. And you can buy your own. Does PPP offer a "cost only" policy on things through his business?
I can buy a BSM system and install it, or a crane, or an MSD ... whatever the customer prefers.... and I take the time to tell them the pros and cons of each.
So... I'd urge anyone to buy a BSM system if performance is their sole objective.... a few runs on the dyno can be nerve tingling, but once tuned, it'll be the best it could ever be.