BMW E28 528i

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Nick1984
Posts: 73
Joined: Sep 12, 2018 3:36 PM
Location: Belgium

Re: BMW E28 528i

Post by Nick1984 »

At this moment we are September this year.

Because the next Alp trip is at the end of the month, i had a lot of time pressure to get the car ready in time.

Replacing the bushes of the front control arms

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actually an easy job with the right tools

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Every part in the engine bay finally got a place

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And then the first start... Engine started an run good from the first time! :)

First test drive => me happy :D The extra power i wanted was there, and what a sound!

Because Alpina did not use the oxygen sensor, and put the car on the dyno and mounted an oxygen sensor to check that the engine absolutely never runs to lean

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And the dyno sheet, 279 HP atmospheric, with an old original engine management.
Alpina claimed 254 HP for the engine, so the Dbillas in combination with the Supersprint really make the engine flow better!

The next thing i want to do is an modern engine management, probably KMS or Megasquirt...
Nick1984
Posts: 73
Joined: Sep 12, 2018 3:36 PM
Location: Belgium

Re: BMW E28 528i

Post by Nick1984 »

The last job before the trip was mounting carter protection

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And a picture of the hidden oil cooler, excuses for the dirty nose :lol:

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ready for the trip!
Nick1984
Posts: 73
Joined: Sep 12, 2018 3:36 PM
Location: Belgium

Re: BMW E28 528i

Post by Nick1984 »

And of course some pictures of the trip!

The car did a great job!

High in the mountains the car was way to rich, so flames out of the exhaust and bang bang roffle roffle :rofl:
I am not sure if i want to change that :cool:


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ElGuappo
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Re: BMW E28 528i

Post by ElGuappo »

I can think of a few guys who would love to get a copy of the chip in that ECU, myself included. :cool:
Cheers man, great work.
muleskinner
Posts: 1188
Joined: Sep 08, 2007 11:17 AM
Location: ATL

Re: BMW E28 528i

Post by muleskinner »

Great fotos, and looks like you get a really interesting bunch of running mates each year on your Alps trip. That's some hardcore engine bay porn!
Bonsaibacker
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Location: Savannah GA

Re: BMW E28 528i

Post by Bonsaibacker »

Fantastic!!!

Bang Bang Roffle Roffle is good! Sorry to see that we are all caught up... Thank you for sharing- inspriational!
bunty
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Re: BMW E28 528i

Post by bunty »

super !!
Nick1984
Posts: 73
Joined: Sep 12, 2018 3:36 PM
Location: Belgium

Re: BMW E28 528i

Post by Nick1984 »

ElGuappo wrote:I can think of a few guys who would love to get a copy of the chip in that ECU, myself included. :cool:
Cheers man, great work.
When i have a new engine management, i will sell the Alpina DME ;)
Bonsaibacker wrote:Fantastic!!!

Bang Bang Roffle Roffle is good! Sorry to see that we are all caught up... Thank you for sharing- inspriational!
There are many things i want to do on the car in the feature, so i hope to update soon :)
This winter, i want to make the Car Alpina look from the outside...
muleskinner wrote:Great fotos, and looks like you get a really interesting bunch of running mates each year on your Alps trip. That's some hardcore engine bay porn!
The Mercedes is a 320 Lotec Turbo build , with 300+ HP and AMG suspension and manual transmission.
the 2002 has S14 crankshaft and pistons, and +/- 170 HP
The E30 is a 325i eta conversion, also +/- 180 HP

So all enthusiasts indeed :D
cek
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Re: BMW E28 528i

Post by cek »

Your car is awesome. Your work is awesome. You are awesome. Thanks for sharing.
Nick1984
Posts: 73
Joined: Sep 12, 2018 3:36 PM
Location: Belgium

Re: BMW E28 528i

Post by Nick1984 »

Thx Cek!

At this moment i am not sure any more if i want to go for the Alpina Look.

The back of the car is good as it is, i like the original look, i also don't want a fat car, so no side skirts.
The only thing i want to change is the front spoiler, and i want to keep the chrome bumper.
I also bought NOS BBS RC090 wheels, that is the reason why i am not sure about going further with the Alpina look.

I cant decide what i want, in the front, Alpina Spoiler, Pfeba, Hartge... difficult choices :?

Any other suggestions?

On E28goodies.com i found a set of uni-ball front wishbones, i recently changed the rubber inserts, but at high speed braking and cornering, there is still a wobble feeling in the steering.
Did someone fit those already? I am curious what about the drive comfort...

Regards Nick
Nick1984
Posts: 73
Joined: Sep 12, 2018 3:36 PM
Location: Belgium

Re: BMW E28 528i

Post by Nick1984 »

muleskinner wrote:Great fotos, and looks like you get a really interesting bunch of running mates each year on your Alps trip.
My friend with the Aston and the other one with the BMW 2002 bought both an E28 535I this month, so the next Alps trip is with 3x E28 ;)
Nick1984
Posts: 73
Joined: Sep 12, 2018 3:36 PM
Location: Belgium

Re: BMW E28 528i

Post by Nick1984 »

before the wintersleep of my car, i did some small upgrades.

The first problem i had was that the speedo needle was wobbling from prox. 100km/u and the second problem was that the gauge stopped at 240 km/u :cool:

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So i went to Ivo Christov in the Netherlands, he changed the gauge plates to Alpina, new condensators, new batteries, new coding plug, and an full calibration.

foto's before and after

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the next upgrade was the diff, it was already changed to 40% lockup, but i was not satisfied with the ratio, so now it is changed from 3.46 to 3.73.
A lot better!!! now the car really pulls :D

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Bonsaibacker
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Re: BMW E28 528i

Post by Bonsaibacker »

:clap: :clap: :clap:

That instrument panel is DOPE! Turn the volume to 11!
SPF2006
Posts: 595
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Location: Baltimore, Maryland

Re: BMW E28 528i

Post by SPF2006 »

The pictures alone in this thread made the entire week better.
Nick1984
Posts: 73
Joined: Sep 12, 2018 3:36 PM
Location: Belgium

Re: BMW E28 528i

Post by Nick1984 »

Thx for the reply's!
Nick1984
Posts: 73
Joined: Sep 12, 2018 3:36 PM
Location: Belgium

Re: BMW E28 528i

Post by Nick1984 »

Today i installed an Alpina steering wheel...

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The only Alpina parts i need to complete the car are the frontspoiler and the gear shift knob...
Adam W in MN
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Re: BMW E28 528i

Post by Adam W in MN »

What a great looking car and fantastic pictures thread. Keep it up.
Nick1984
Posts: 73
Joined: Sep 12, 2018 3:36 PM
Location: Belgium

Re: BMW E28 528i

Post by Nick1984 »

I finally found the time to do some stuff on the E28.

Because after all the upgrades i did, there was still a whobbling feeling in the steering wheel when i had to brake really hard.

First i changed the "red stuff" brake pads to normal TRW brake pads.
Then the discs where regrinded, i mounted the Lemförder trailing arms of a BMW 850i, and ordered new TRW upper control arms.
I changed the rubber bushings of the new arms by the Moosehead bushings.
After the first testdrive, finally a whobbling free steering wheel :D


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After the suspention/brake upgrade, i mounted the digital oil pressure and temperature gauges.

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The temperature sensor is on the location of the sump plug.

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The result:

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The Led digits dim when the light is on.
Tiit
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Re: BMW E28 528i

Post by Tiit »

That is a neat solution for oil temp/pressure monitoring. Is the oil pressure sensor located in the standard pressure switch location in the back of the head?
Nick1984
Posts: 73
Joined: Sep 12, 2018 3:36 PM
Location: Belgium

Re: BMW E28 528i

Post by Nick1984 »

Yes, the pressure switch contact is replaced by a VDO sensor with 2 connections, the connection for the oil pressure lamp and the connection for the digital gauge. (G and WK)
Nick1984
Posts: 73
Joined: Sep 12, 2018 3:36 PM
Location: Belgium

Re: BMW E28 528i

Post by Nick1984 »

Time for some updates!

The bonnet, Wings and 2 left doors are resprayed because of some small scratches, under the trims of the doors whas rust that i didn't expected, Lucky only surface rust...

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And the real reason for the paintwork was the Alpina spoiler :D

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[/quote]
Nick1984
Posts: 73
Joined: Sep 12, 2018 3:36 PM
Location: Belgium

Re: BMW E28 528i

Post by Nick1984 »

Some pictures from the whole car:

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Tow eye mounted

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[/quote]
Nick1984
Posts: 73
Joined: Sep 12, 2018 3:36 PM
Location: Belgium

Re: BMW E28 528i

Post by Nick1984 »

Because the Alpina engine was E32, the oil sump was way to much foreward.
So i found an 535i sump and suction part of the oil pump and replaced it, what a difference, now i can take speed bumps :)

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Nick1984
Posts: 73
Joined: Sep 12, 2018 3:36 PM
Location: Belgium

Re: BMW E28 528i

Post by Nick1984 »

The next step is replacing the engine management by EFignition (Megasquirt)

first synchronising the throttle bodies with the Motronic

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remove the old wiring harness

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new wiring harness

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The maximum on the dyno was 286 HP, but because of the upcomming trip to the Alps (with often only 95 octane) we made a safe map, and this is now the result:

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This is the old "motronic" curve:

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So i am happy with the result, the car drives smooth now
Nick1984
Posts: 73
Joined: Sep 12, 2018 3:36 PM
Location: Belgium

Re: BMW E28 528i

Post by Nick1984 »

And the last pictures are from the Alpen trip we made 6 weeks ago…
Swiss, Italie, Austria

The last pictures shows that an Alpina spoiler don't like a tractor track on an alpine meadow :) Nothing we can't fix

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