Hardeman Motorsport - motorsport parts and diff specialist

Pastelblau 520/6

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BertjeConti
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My E21(s): E12 520-6
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Pastelblau 520/6

Post by BertjeConti »

Hello E12 enthausiasts

My name is Rob and i live in the south of Holland,

So, time to introduce my E12 here in this nice SUB:

It's a 1977 520/6, so one of the first with the baby six engine.
The car is imported from Germany to Holland in 2002, and thats when i bought her. So it's mine for 13 years now, and has always been a daily driver ever since.

The first M20 engines had one big issue, and thats a cracked head near cylinder 5. I've had 2 cracked heads in one year, but the last head (a 1981 head) is still holding.
It had a 3 speed auto, but soon i've converted her to a 5 speed manual.

Last year i've converted the engine from carb and dizzy to a megasquirt setup with sequential injection and wasted spark ignition, the car never drove that good as it does now.

Because she hasn't a roof over her head, the paintjob has a nice old patina, and there are some rusty spots.

A few years ago the rear doors became a temporary fix and the panel under the rear bumper was repaired.

Plans with the car are preparing it for classic rally's, sonice rally color sceme idieas are welcome

time for some pictures:

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Engine bay(with new rad):
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Worn seats and fire extinguisher:
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Dash:
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Cruise control handle in steering column:
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clocks:
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Homemade tripmaster:
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And megasquirt display:
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Nice options are:
- cruise control
- tinted windows
- slide-tilt roof
- electric mirrors
- power steering


Image Megasquirted '77 E12 520-6

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Jeroen
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Re: Pastelblau 520/6

Post by Jeroen »

From the department of amazing projects! :thumbsup
Regards/groeten, Jeroen

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bmw e12 e21
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My E21(s): '82 323i Edition S man. + ´83 M315 man.
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Re: Pastelblau 520/6

Post by bmw e12 e21 »

Welcome!

Nice extra computers you have installed.
And cruise control. :thumbsup
grt Remy

BMW e21 M315 1983 75pk+ 110Nm+ WEBER 32/36 DGAV
BMW e21 323i ED. S 1982 143pk 190Nm
BMW e12 M535i 1980 218pk 310Nm
BMW e91 318d 2009 190pk 411Nm
FORD Focus 1.8TDci 2010 115pk 300Nm

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323baur
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Re: Pastelblau 520/6

Post by 323baur »

I do like!
Understeer is when you hit the wall with the front of the car and oversteer is when you hit the wall with the rear of the car. Horsepower is how fast you hit the wall. Torque is how far you take the wall with you.

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BertjeConti
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Re: Pastelblau 520/6

Post by BertjeConti »

bmw e12 e21 wrote:Welcome!

Nice extra computers you have installed.
And cruise control. :thumbsup

Yes, cruise control comes from a E23, handle fits right in the steering column without any modificatons.
Creating a speed pulse signal was the biggest challenge.
Image Megasquirted '77 E12 520-6

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323baur
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Re: Pastelblau 520/6

Post by 323baur »

How did you do that!?
Understeer is when you hit the wall with the front of the car and oversteer is when you hit the wall with the rear of the car. Horsepower is how fast you hit the wall. Torque is how far you take the wall with you.

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e-einundzwanzig
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Re: Pastelblau 520/6

Post by e-einundzwanzig »

Very nice,

As for the rallye scheme, I was thinking of the Gulf scheme because your car is already blue, it just needs the orange striping and gulf logo ;)
Image
Martin
I took the corner at high speed, came in the ditch, drove straight through a garden, flipped over 4 times and then I lost control of my steering-wheel!

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BertjeConti
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Re: Pastelblau 520/6

Post by BertjeConti »

323baur wrote:How did you do that!?
I've mounted a proximity sensor to the diff, the proximity sensor 'counts' the propshaft bolts at the diff side. I do not have any pictures, installation is done more than 10 years ago.

a proximity sensor is a sensor that senses metal objects. Normal use is in factory lines (to count beer cans).

The sensor i've used is supplied with 12V.
Now the sensor also provides speed pulses for the tripmaster and the megasquirt display.
Image Megasquirted '77 E12 520-6

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BertjeConti
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Re: Pastelblau 520/6

Post by BertjeConti »

e-einundzwanzig wrote:Very nice,

As for the rallye scheme, I was thinking of the Gulf scheme because your car is already blue, it just needs the orange striping and gulf logo ;)
Image
Martin
Yess, i'd found that one already on the net, like it much, only the gulf sign is often not allowed in classic rally's, it's done on porche's and Ford GT40's also

blue and orange match very well.
Image Megasquirted '77 E12 520-6

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Jeroen
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Re: Pastelblau 520/6

Post by Jeroen »

If I'm not mistaken a proximity sensor is the approach that was also used in laer models like the E30, fitted on the diff
Regards/groeten, Jeroen

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323baur
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Re: Pastelblau 520/6

Post by 323baur »

Sounds sophisticated...and too difficult for me. But nevertheless, top option!
Understeer is when you hit the wall with the front of the car and oversteer is when you hit the wall with the rear of the car. Horsepower is how fast you hit the wall. Torque is how far you take the wall with you.

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Jeroen
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Re: Pastelblau 520/6

Post by Jeroen »

Other option is a GPS driven converter to cable, we posted some info about this a while ago but I can't seem to find it :?
Regards/groeten, Jeroen

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BertjeConti
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Re: Pastelblau 520/6

Post by BertjeConti »

323baur wrote:Sounds sophisticated...and too difficult for me. But nevertheless, top option!
Where for do you need this speed signal?
Image Megasquirted '77 E12 520-6

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323baur
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Re: Pastelblau 520/6

Post by 323baur »

I do like cruise control, because im lazy
Understeer is when you hit the wall with the front of the car and oversteer is when you hit the wall with the rear of the car. Horsepower is how fast you hit the wall. Torque is how far you take the wall with you.

User avatar
BertjeConti
E21 Mad
Posts: 1799
Joined: Mon Nov 04, 2013 9:49 pm
My E21(s): E12 520-6
Location: nederland , Weert

Re: Pastelblau 520/6

Post by BertjeConti »

There are sensors for digital tripmasters into classic cars with cable driven speedo, these sensors are fittet between the speedometer cable and then provide a digital speed signal, Maybe this is a easier solution for your cruise control setup.

check this page : http://www.handawebshop.eu/Webwinkel-Pr ... atrip.html

And if you have a manual, then a swicht to detect clutch engangement is also needed and there is no bracket available for this switch in the E12 and E21 pedal box.
Image Megasquirted '77 E12 520-6

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