3 Clock Dash Question Mpi Spi Carb

Mini Technical Sections Problems, Questions and Technical
1

hello

will a set of clocks from a later mini mpi/spi with rev counter inc fit a 1987 mini with 3 clocks or is the wiring different.

2

not sure but pretty certain MPi’s n SPi’s use Nippon Seiki type gauges whereas the older Minis use Smiths?

3

i was told the wiring is different, as per comment above.

Cheers

4

Dimensionally they will fit, not sure if the connector fits, but one thing to be aware of is the tacho on the later mpi clocks runs off the ECU not from a coil feed, so it will need recalibrating

5

Connectors fit the same, the rev counter can be re calibrated by turning the screw on the inside.

6

The SPI will work, while the MPI not and will read twice. As guessworks said mpi rev counter can be recalibrated to be used with standard coil.

7

yet again guys thanks a lot. this is a great forum id be lost with out it.
always some one who knows what i dont.

8

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The SPI will work, while the MPI not and will read twice. As guessworks said mpi rev counter can be recalibrated to be used with standard coil.

And why will the mpi not?

9

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>
The SPI will work, while the MPI not and will read twice. As guessworks said mpi rev counter can be recalibrated to be used with standard coil.

And why will the mpi not?

Because the mpi runs a wasted spark ignition system

10

yah, but its very easy to adjust it, so is just as useable. There is no need to send it away

11

i have the mpi 3 dial speedo in my 79 clubman and it works fine.

12

Does anyone knows if it necessary to use a different coil? Mine is a lamentation.

Regards

13

Dimensionally they will fit, not sure if the connector fits, but one thing to be aware of is the tacho on the later mpi clocks runs off the ECU not from a coil feed, so it will need recalibrating

Hi guess works. Where is that screw located in the tacho to calibrate it? This can be done by someone or has to go to a specialist?

14

Dimensionally they will fit, not sure if the connector fits, but one thing to be aware of is the tacho on the later mpi clocks runs off the ECU not from a coil feed, so it will need recalibrating

15

There is a variable resistor on the rev counter that can be used to adjust the reading. This can be done by yourself with a timing light

16

see here for a brilliant guide courtesy of miniman_7

 

 http://www.theminiforum.co.uk/forums/topic/242585-mpi-rev-counter-into-a-carb-car/