7 Year E21 Build

[BmwolfJR 0]

Hi to all

The old man(BMWolf) and I are heading towards the end of a 7 year build of our BMW E21 Race car and I thought that I might post a chronicling of our battle with the beast.

The car we started with was an E21 323i Gold with a bent rod and a hole in the block.

On blocks it went and away we went

[BmwolfJR 0]

With every nut, bolt and sticky piece of plastic riped from the car we started rust repair.

the roll cage was squeezed in next.

[BmwolfJR 0]

With a block that had a hole in it the decision was made to buy an M20 out of a 525e from Mosen

which went under an extreme rebuild

[BmwolfJR 0]

As the e21 front end is known for its lack of skill and ability a new one was designed and fitted

[BmwolfJR 0]

Because the e21 comes with 4 stud hubs and wheels, the need for more custom work arose. Two large and two slightly smaller aircraft grade aluminum ingots were purchased to be made into new front and rear hubs

[westy 614]

Blimey!

More please.

[kingkarl 136]

God this is impressive. I can only imagine how much time/money you've poured into this.

Those ingots cant have been cheap.

[gouba 0]

more please!

[thorburn 120]

The rod and block destruction is great.

Looking forward to see what's going into the m20 build

[BmwolfJR 0]

The people have spoken and we have more to show!! :-)

Before the ingots could be machined, rear end components were made to replace the old ones then fitted to the newly powder coated parts

[BmwolfJR 0]

With the ability to make the hubs any way we want the standard rear disk, drum combo was not going to cut it.

So the front vented disk, twin pot calipers and brakes were moved to the back. Two small floating calipers were added to work as a standalone hand brake.

Two large 4 pot Wilwood disks and calipers were fitted to the front

[BmwolfJR 0]

Now to the fun bit the M20;

The block was powder coated red and honed to new

The valves were cleaned and lightened and the head port polished and in the heart of a dark garage the "master" constructed a set of needle roller rockers to replace the standard ones

[thorburn 120]

How is the rear rotor attached to the hub? I'm guessing magic

[OLLIE 26]

wow! this is awesome, you have my full attention ...

what are you doing to the M20? what capacity is it going to be?

[BMWolf 0]

How is the rear rotor attached to the hub? I'm guessing magic

The rotors are spigot-ed and cap screwed to the back of the hubs with 8 x M8 316 SS screws

[hotwire 352]

Loving the design/fabrication work going on here. Watching with interest

[E30 325i Rag-Top 2915]

^^+1 the detail and the quality of the engineering and fabricuation is incredible, a top effort. More please...

[BmwolfJR 0]

Thanks guys all the engineering and fabrication work has been done by the Old Man (Bmwolf)

i will add more tomorrow.

[pureboiracer 0]

+1.. subscribed.

[BmwolfJR 0]

With a custom front suspension in the car the Macpherson strut needed to be modified so with some fabrication work the original strut was made in to a fully adjustable one

[BmwolfJR 0]

The petrel tanks were sent away to be powder coated red and then fitted.

The dashboard was cut in half and fitted with our new steering wheel.

The dashboard was later removed in favor of some thing cooler (more on that later)

[BmwolfJR 0]

the roller rockers were fitted

After the crank, rods, balance wheel and fly wheel were lightened and balanced the crack an rods under went nitriding they were also fitted and then the engine was mocked up

[Nobimmer 694]

Woah, so much win.

[Jacko 2078]

^ Oath.

This is awesome. Stop drip feeding the addicts though, the suspense is killing me

[BmwolfJR 0]

a new intake manifold was fabricated and the EFI throttle bodies were fitted

and the engine was squeezed in (with help from my good friend disk grinder)

Edited October 12, 2010 by BmwolfJR