Crusader
True Classic
Hey Crusader,
I'm sure that you have already seen this page concerning the conversion:
http://web.archive.org/web/20140626...-online.dk/x1-9/service-uk/engineconv-ut.html
Although I'm no expert in Uno Turbo conversions (I've seen a few, but never done one) I can share the following thoughts:
ECU:
The ECU in a mk1 Turbo is a Bosch LE2-Jetronic. According to wikipedia:
"This is a simplified and more modern variant of L-Jetronic. The ECU was much cheaper to produce due to more modern components, and was more standardised than the L-Jetronic ECUs. The connections between mass airflow meter and ECU are simplified. Three variants of LE-Jetronic exist: LE1, the initial version. LE2 (1984–), featured cold start functionality integrated in the ECU, which does not require the cold start injector and thermo time switch used by older systems. LE3 (1989–), featuring miniaturised ECU with hybrid technology, integrated into the junction box of the mass airflow meter.
"
So, for the ECU at least, you don't need the extra sensors. I'd personally go with the LE2, de to the integrated cold start functionality (cold start in the L-Jetronic is completely separate to the ECU and relatively crude). In addition, the part number for the Uno Turbo ECU (0 280 000 336) is unique to that car, implying that the internal circuitry is tuned specifically for that engine.
ICU:
The ignition control unit is much more important. Reading up on the Digiplex unit, it needs both a crank and flywheel sensor (for RPM). The latter is pretty easy: you just need to drill a hole in the existing transmission case and mount the hall effect sensor (I have a modified gearbox sensor in my cellar if you need a reference photo).
For the crank sensor, here is a thread that details it in more depth than I could:
http://xwebforums.com/forum/index.php?threads/24076/
You can probably get one made up (maybe Matt already has done that?).
In any case, I'd definitely recommend investing the time to get the Digiplex system working (including distributor, coil, ignition driver, etc.) if you want to get full power and have decent longevity for your engine.
Cheers,
Dom.
Thanks Dom, very informative. I would definitely appreciate a couple of pics if it is no trouble. Another issue we ran into is that the Air Flow Meter for the 1500 is a 6 or 7 pin affair (can't remember which) but the uno one is a 4 pin affair which would require rewording the harness. Will definitely have a second look at the Uno management system. Thanks again,
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