E30 Gearbox/Speedo

[attila_k]

Hello!
Do I need some other parts beside the hall sensor and the speedo from e30 to make the e30 gearbox work?
Is there some other electric parts?
I got 5sp gearbox from e30, and considering to do the swap...
I need to know is it possible to do, before I buy the speedo,drive shaft and the hall sensor....
Thanks to your answers in advance!!!

[nas80]

you dont have to use the hall sender and pickup from an e30 diff as long as you buy an aftermarket thing. you can just extend your curent prop, i think the flange on the rear of the e30 which goes on the diff is different to the e21 diff? im not sure though.

If you have a satellite navigation you could use that to tell you the speed your going!

I have an app on my phone that does this and i can even flip the screen to reverse numbers so that it displays the speed in the windscreen like aeroplate fighter heads up display lol.. (its not an iPhone - its windows but im sure there will be an app for that in the app store)

[tommi_e21]

there is an iphone app
also has a HUD G-sensor to show you how fast your going sideways........ at that point my iphone has normally become detachhed and trying to make its way out the window

[attila_k]

I know that I can measure the speed by navigation or some other way, but I want to keep my car in original state..

[Jazziat]

good topic here guys ...... i have the same question as well after reviewing these pictures...

I wana swap 318 IS, which comes with the original E-36 gearbox ... its not a cable one of course like the original E-21 ....

And surely i will not change the dashboard with the E-30 one because i consider this as a mess to my E-21.

i saw the pictures of getting the Speedo meter of the E-30 into the dash guages of the E-21 .... the question is ... whats next.... were are the remaining of photos ???

Please help !!

[attila_k]

I disassembled the instrument cluster this weekend, and it seems that it is possible to put in the speedo from the e30 and probaly from e36 too..The speedo has 4 pins, 2 for Hall sensor and probably the other 2 are for voltage input...
The e30 speedo (probably the e36 too) has smaller diameter, so I will put some kind of ring around it to fill the gap, or I will
replace the plate with numbers from e21 speedo...
So for that kind of swap you will need :
-gearbox
-driveshaft
-if you prefer to keep the e21 diff you have to put somewhere the Hall sensor with the plate (in the diff, or attach to the ouput shaft)
- speedo and some wires...
I will put some pictures next week, and more pictures as I progress...