Non-Identical Twins..

[Jhonno]

Ok, not technically Readers Rides as such, but seeing as it is 2 members cars, thought I'd make a combined thread..

2 cars on paper very similar, yet quite different in exectution..

[plumb]

Very similar indeed, is the E30 that's not your (BBS wheels) also the same motor M3 

Love the BBS RC041 wheels, I got a set of 5 that I want to put on my touring, thats the reason I want 5 stud hubs.
Do you know Jhonno what size tyres he's running, my wheels have 225/45x17" and they are far too bigger profile, I was thinking something like 205/40x17" might get the profile right.

So which one is the quicker or haven't you compared them yet 

[Jhonno]

The one that isn't mine is a 3.2, mine is a 3.0, mine is slightly lighter with shorter gearing.. Not compared them yet, it will come I am sure 

He is running 215/40 tyres on 7.5" rims with Z3M running gear

[plumb]

Is he running the 6 speed or 5.

I'd have thought it'd be a close call when they go up against each other, I recon the ring would be a good place to compare them 

So whats the most economical way to get 5 stud fitment on my E30  I got the E36 328i parts if any of them are needed

[Jhonno]

328i stuff is no good to you..

There isn't a cheap way to do it properly so you maintain decent geometry basically

[jaistanley]

Cheers for posting that Dan...

The following are the car specs (I just got bored at work and typed it up).  There are of course lots of little details but the below should give you an idea of whats going on.. 

Engine:

S50B32 from a 1998 ZMRoadster.  Engine replaced circa 2002 with new replacement so definitely <48000 miles.  Inside all is BRAND NEW so estimating 10k miles.
Oil pump and pick up (new) from M50B25 525i
525i Sump
All emissions pump and vacuum system removed, aircon deleted and relevant wiring.
EWS system retained.
All wiring modified/thinned to fit into E30M3 wiring covers in engine bay.
Factory look to install.
Modified throttle cable (approx 2” shortened).
ARP con-rod bolts.
E36 M3 engine mounts fitted with E28 M5 rubbers.
JBRacing aluminium flywheel.
Engine and EWS diagnostics wired in to work as per factory.
Mocal oil cooler mounted behind kidneys.

Fuelling:

E36 M3 Evo fuel pump fitted to modified E30 fuel pump cage.
FSE in-tank fuel filter sock.
325i fuel filter and plumbing.

Cooling:

E36 M3 Evo radiator.
E36 M3 top hose (cut a little)
Half M20, half M50 lower hose with joiner.
E30 header tank with pre-facelift hose joined to a new section of coolant hose to rear of head.
14” fan using BMW air-con wiring schematics, wired into std thermo switch and relay/fuse position.
2 bar header tank cap.
E30 check panel level sender retained.

Exhaust:

BTB modified manifold, heat wrapped with original heat-shield modified to also fit.
BTB custom X pipe butt welded to Simons (Jetex) 304 stainles 2 * 2” centre box, heat wrapped to centre box.
2*2” stainless tubes to Supersprint Race E30M3 backbox modified to fit std E30 hangers.

Transmission:

5 Speed manual from ZMRoadster.
E36 325i (M50) gear linkage with all new bushings.
ZMRoadster Gearshifter for (very) short-shift.
E36 328i manual propshaft (fitted with E30 centre bearing)
ZMRoadster 3.15 LSD and driveshafts
ZM diff bush in E30 diff backing plate (my ZM plate got damaged).
M5 sprung clutch plate.
E36 M3 pressure plate.
E30 clutch master cylinder.
E36 328i 20.64mm clutch slave cylinder.
Clutch fitted with stop to prevent contact with flywheel (!!)
Custom made (by myself) braided clutch hydraulic line (std E36 one restricts flow for smooth up-take).

Wheels:

BBS split rims from E36 328i sport: two sets of front (7.5j) (also have a set of 7.5j and 8.5j’s to play with).
Offset ET41 all round (std E36 offset).
Toyo Proxes T1-R 215/40/17’s
Sit perfectly in the arches..

Suspension:

Front:
E36 M3 Bilstein B6 dampers
E30 325i H&R sport –35mm springs
Uwe Camber adjustable topmount rings.
E30 Rubber topmounts.
E36 M3 Evo lower wishbones.
E36 M3 Evo hubs.
E30 eccentric (M3) poly urethane TCA bushes.
E36 M3 ARB droplinks
E30 325i ARB’s

Rear:
ZMRoadster/Mcoupe radius arms.
E30 Bilstein B8 dampers
H&R Sport –35mm springs
E46 M3 Cabriolet topmounts
New BMW rubber bushes throughout.
E30 325i ARB.
Modified subframe with independent camber and toe adjusters.
ZMRoadster ARB droplinks (tight fit when suspension at full droop!)

Steering:

ZM steering rack (same as E36 Coupe).
Custom power steering pipes (courtesy of Ian Haynes)
Custom steering rack to column joint (probably to be revised)
E36 power steering return pipe.
E36 tie rods and track rod ends.

Brakes:

Servo re-located 53mm nearer to nearside.
Golf MK2 1.3 servo.
Audi Coupe 2.3 20v Turbo Quattro master cylinder (25mm)
New hard-lines where required.
ABS retained utilising E36 senders front and rear spliced into E30 system (still a work in progress).
E34 brake tie-bar modified when re-locating brake servo.
E30 handbrake cables.
Golf MK2 fluid reservoir with modified E30 cap to allow for different height of warning level.
ATE Super blue dot 4 racing fluid.

Front:
E36 M3 Evo/ZM 315mm by 28mm 2 piece braking setup.
Performance friction road/track compound pads.
Goodridge E30 hoses.

Rear:
ZM/E36 M3 312mm by 20mm vented disks and callipers.
Performance Friction road/track compound pads.
Custom braided brake lines following handbrake cables from chassis, banjo bolts at calliper end.


Basically the car is a re-shelled MCoupe.  The performace should be on a par, if not better (as long as the 215 tyres can get the power down) than the donor car in every aspect.  Yey. 

[plumb]

It sounds spot on, makes me want to get stuck into my M52 project, lot of hard work ahead and your list has made remember all the hard work ahead.

[Cook]

Thats one hell of a spec! Puts my m50 to shame 

[jaistanley]

Well the car is now MOT'd..  Yey!

Didn't have the money to tax or pay the extra on the insurance this month though, after buying the bits to finish it off.. Boo!

I can't even begin to tell you what a wind up it was to have to park it up again!

Oh well.. In two weeks I'll tell you what she's like to drive for more than 10 miles.. Hopefully the brakes will bed in so I dont sh!te myself right up again.. lol

Jai

[jmc330i]

Great news Jai 

It is a great feeling isnt it? Although, I cant imagine how you must be feeling not being able to drive it 

It will be worth the wait, believe me

[Jhonno]

Hell, at least the fecking thing is now roadworthy!!! It's taken long enough, 2wks isn't gonna kill, frustrating as it might be 

[ste]

Brilliant Jai. Is it on the road and insured yet?

[Jhonno]

It is indeed, taxed insured and MOT'd and being driven to work..

[ste]

 

[Dezzy]

What a pair!
Lovely motors guys. Almost a shame to be leaving the brotherhood jhonno?

Hope my chromie is finished to the same standards.