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Nov 27, 2011 17:39:49 GMT
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anyone got any experiance with these
I'm putting a '96 523i 5 speed auto in my mk3 zodiac
at the moment the main concern is getting a speedo to work as i believe the BMW one was ran of an ABS sensor
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Nov 29, 2011 21:55:42 GMT
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not sure about the speedo, but contemplating a 6 cyl bmw engine and box for my rover p4, was thinking manual though
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loving the dub
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Nov 29, 2011 22:26:18 GMT
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Think the bmw speedo is ran off a sensor in the diff.
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andyborris
Posted a lot
Freedom is just another word for nothing left to lose.
Posts: 2,161
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Sensor in the diff reads a 9 tooth wheel, send signal to the speedo via the DME, will also cut the engines power output if the signal fails.
Think the speedo signal the least of your worries, have a look at the EWSII system!
Andy
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ChasR
RR Helper
motivation
Posts: 10,194
Club RR Member Number: 170
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BMW engine/boxChasR
@chasr
Club Retro Rides Member 170
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Nov 30, 2011 10:00:14 GMT
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I have the older version of your gearbox in my Stag (from an E30; the ZF 4HP22 4 Speed 'box). I will have to get an electronic speedo to go with the sensor.
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Sensor in the diff reads a 9 tooth wheel, send signal to the speedo via the DME, will also cut the engines power output if the signal fails. Think the speedo signal the least of your worries, have a look at the EWSII system! Andy As long as you have all the right bits, it's not so scary. |
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andyborris
Posted a lot
Freedom is just another word for nothing left to lose.
Posts: 2,161
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Dec 18, 2011 16:15:46 GMT
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Sensor in the diff reads a 9 tooth wheel, send signal to the speedo via the DME, will also cut the engines power output if the signal fails. Think the speedo signal the least of your worries, have a look at the EWSII system! Andy As long as you have all the right bits, it's not so scary. Have you wired one? What's the easiest way to remove all the wires I don't need? Thinking about all the OBD stuff. AFAIK, not all the DME's cut top speed when the speed sensor fails, if I've got one which does, I'll think put a trigger wheel into the prop? Andy |
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murran
Part of things
Posts: 610
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Dec 18, 2011 17:58:10 GMT
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why don't you go older than a 96 to avoid the ews system entirely? like a pre-ews m50 non vanos from like a 92 car??
have you got any sump clearence problems? i think 5 series cars have a front sump bowl, 3's have a rear sump bowl.
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andyborris
Posted a lot
Freedom is just another word for nothing left to lose.
Posts: 2,161
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Dec 18, 2011 18:52:32 GMT
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EWS is pretty easy to cope with, it's the wiring loom that's the nightmare for me, still with copper prices, the install should pay for itself from the cut out wiring!
M52 is quite a bit lighter then a M50 and you still have to remove all the OBD stuff, unless it's going into a E30.
Andy
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murran
Part of things
Posts: 610
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Dec 18, 2011 22:18:54 GMT
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for shear peace of mind...... id prefer the iron block of the m50 tbh, regardless of weight. with it going in a zodiac i don't think an extra 15/20kgs is gunna make a blind bit of difference.
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rob0r
East of England
Posts: 2,743
Club RR Member Number: 104
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BMW engine/boxrob0r
@rob0r
Club Retro Rides Member 104
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Dec 18, 2011 22:47:42 GMT
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Early M20 boxes from E21 and earlier had cable driven speedos if thats any better. Getting hard to find though.
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E30 320i 3.5 - E23 730 - E3 3.0si - E21 316 M42 - E32 750i
ETC
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nas80
Part of things
Posts: 363
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Dec 21, 2011 18:38:44 GMT
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You will find that when you get it running its not so much the ews its the missing abs pulse signal that will limit the car to 5.5k that will scupper you.
I can have the ews and the abs 5.5k speed limit removed and the ecu mapped for cheap.
I think that the road speed problem is best resolved by fitting a speed pickup. / pulse generator on the prop and running an electric speedo behind your original clock? I'm pretty sure you can buy Smith speedo that works off a pulse?
Pm me about the dme / ecu the turnaround is about a week.
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nas80
Part of things
Posts: 363
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Dec 21, 2011 18:43:56 GMT
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for shear peace of mind...... id prefer the iron block of the m50 tbh, regardless of weight. with it going in a zodiac I don't think an extra 15/20kgs is gunna make a blind bit of difference. Its more like 40kgs actually. Early iron blocks generally have galactic mileage so not worth the effort unless your going to turbo. |
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nas80
Part of things
Posts: 363
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Dec 21, 2011 18:47:48 GMT
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EWS is pretty easy to cope with, it's the wiring loom that's the nightmare for me, still with copper prices, the install should pay for itself from the cut out wiring! M52 is quite a bit lighter then a M50 and you still have to remove all the OBD stuff, unless it's going into a E30. Andy Loom is easy. As its self contained you only need to connect a half dozen or so wires to get it running. If you need help let me know. |
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andyborris
Posted a lot
Freedom is just another word for nothing left to lose.
Posts: 2,161
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Dec 22, 2011 18:22:23 GMT
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EWS is pretty easy to cope with, it's the wiring loom that's the nightmare for me, still with copper prices, the install should pay for itself from the cut out wiring! M52 is quite a bit lighter then a M50 and you still have to remove all the OBD stuff, unless it's going into a E30. Andy Loom is easy. As its self contained you only need to connect a half dozen or so wires to get it running. If you need help let me know. Don't worry, I will ;D ;D! I've done a Megasquirt install, so this is the next step, I want to keep all the stuff like the knock sensors, run the 2 O2 sensors in closed loop etc. I think the ony way I can do that (on a budget!), is by sticking with the Siemans DME. Will be starting in the new year so expect some stupid questions !  Thanks Andy |
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