gems system

[daz the plumber]

hi, some of you are into changing the ignition system for the fully mapable stuff .i saw a very late range rover in the breakers with i think the same system ,coil packs etc .may be it would be worth getting one off a range rover .it was a rover rv8 engine .

[spend]

Gems relies on the rover crank & cam triggers (and different o2 sensors). I think you would also need some Mark Adams magic to remap it for the TVR engine, and a few issues where it is integrated into the security system. Don't assume that p38s have the same system, early ones had sagem and later ones (Thor stuff) is Bosch IIRC.

There also seems to be a bit of confusion on t'internet about the crank sensor (which ones have 36-1 & 60-2?). Strangely enough I have been chatting with Mark about this recently and we agreed to start a thread when he had a bit of time to spare. IMHO I cant see a problem installing a pulley mounted trigger wheel, cut to mimic the flywheel version. The early cam pickup is a pretty simple pattern and it should not be too difficult to simulate.

[Chassis 33]

GEMS runs 36-1, at least the flexplate of my 4.6 ex-RR engine is 36-1. GEMS also runs knock sensors that have bosses cast into the later blocks, this might pose a problem? It's all pretty clever stuff but probably too much of a balls ache to retrofit to a TVR, easier would be Emerald, Ms and the other usual protagonists.
Regards
Iain

[V8 GRF]

Personally I'd sort the other issues I had before I started indroducing yet another variable into the mix.

[spend]

There comes a time in everyones mind that they have to make the decision should they keep throwing time & money at the 14Cux/clockwork spark or use it more fruitfully.

Seems to me that plenty will recommend Emerald & MS, but the cost and capability of those might just be bettered by Gems? DW seems completely anti-knock, MS has limited support... If you look at putting together a package with wideband and knock sensing (+ tuning it to the block) then you might see Gems actually ticks a lot of the right boxes as standard? Looms are also readily available which are also quite a significant cost with some of the alt ecus....