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Geoff's 250 SWB Replica Build

15 Jul 2014, 11:44am
DSG4ME wrote:
I think it´s really going to look good and can´t wait to see it finished. And even if it differs slightly from the original 250 it doesn´t matter. Remember "It´s not a replica, it´s a Tribute"


I think that with the addition of bulbous Kobra rear wings and Kobra-like front wheel arch flares it will look even better than the original.
15 Jul 2014, 7:38pm
y cymro wrote:
I think that with the addition of bulbous Kobra rear wings and Kobra-like front wheel arch flares it will look even better than the original.


Evening Steve , got to disagree with you ref the wheel arches , the relatively original shape will do for me ,Geoff .
15 Jul 2014, 7:49pm
Evening Geoff
That's great, it means our cars will look different :-)
Steve
16 Jul 2014, 8:21am
Any more pictures and updates on progress so far?
16 Jul 2014, 9:47am
Tribute Automotive wrote:
The back end surfaces are now finished to a level where a slash mould can be taken:



Existing splash mould placed back on the rear of the buck:



Flanges added to split the mould and gelcoat painted on:



The first set of panels should be ready to try on the Z3 early next week.




Question for you, what do you use to make the split line flanges and how do you fix them to the buck.

Cheers

Mark
17 Jul 2014, 5:15pm
Any more updates? I'm checking in at least 3 times a day to check if there's any further progress!!
24 Jul 2014, 10:30pm
Been a bit quiet lately, any progress?

I for one am really keen to see how you're going to tackle the side windows. I'd be inclined to fabricate a frame to form the door top (like the real thing had) and use a two piece sliding arrangement in lexan or maybe even glass a la mk1 Mini.

25 Jul 2014, 7:55pm
Mister Towed wrote:
Been a bit quiet lately, any progress?

I for one am really keen to see how you're going to tackle the side windows. I'd be inclined to fabricate a frame to form the door top (like the real thing had) and use a two piece sliding arrangement in lexan or maybe even glass a la mk1 Mini.



Yes Towed a bit quiet, busy with everything at present, so only sanding and filling of the front end of the buck pre-moulding. More pics soon.

Here's something for you to think about:



Use the chassis, running gear, floor pan, inner structure, move bulkhead/steering/pedals back, rack windscreen/side windows back, skin with slightly stretched SWB panels.
25 Jul 2014, 7:58pm
sebring115 wrote:
Question for you, what do you use to make the split line flanges and how do you fix them to the buck.

Cheers

Mark


Sorry for delay in responding. 1mm pvc and hot glue.
25 Jul 2014, 8:00pm
mike.gamble wrote:
Any more updates? I'm checking in at least 3 times a day to check if there's any further progress!!


More progress coming very soon, Donnington looming!
25 Jul 2014, 11:20pm
Tribute Automotive wrote:
Here's something for you to think about:


Use the chassis, running gear, floor pan, inner structure, move bulkhead/steering/pedals back, rack windscreen/side windows back, skin with slightly stretched SWB panels.


I have one of those waiting to become a hot rod, but this idea might be better.

Presumably an LWB?
26 Jul 2014, 8:23am
Interesting idea, is that going to be an alternative to the Z3 donor, or is it a complete change of direction?

I'm still wondering how you'd address the angle of the back of the door glass using the BMW doors with a Z3 donor.

Maybe scratch built fibreglass doors is the way forward. They'd also cut the weight down and it shouldn't be too hard to sell on the donor's doors.

Hoping to see some progress soon...
26 Jul 2014, 9:21am


It's noticeable on the SWB how the angle at the rear edge of the door continues up to the side window at the B pillar, and how this angle is matched at the bottom of the Z3 door before it curves to become vertical.
For my car I would like to see the rear of the z3 door extended at the same angle as the Tribute SWB bodyshell to fill the gap seen in the picture above by extending the door skin with a welded add on fillet. It would be possible to also reshape the rear inside corner and door lock mount panel on the door by increasing the angle to allow a new SWB profile window to be fitted - which could open and close vertically using the original window tracks. This would require some re shaping of the B post above the door catch if a new window is to be fitted, though from the outside this would be covered by the glassfibre rear wing. Looking at the pic, I wonder if there's a compromise position so that the door skin could be extended to continue the angle to match the SWB without needing to modify the door catch panel but still allow a new side window to be fitted?
I agree with MrTowed that this is an important element of the SWB shape and makes the B/C pillar more elegant. But the curved, original rear screen helps this effect too and that's another thing that complicates the build.

Of course, this may take the concept of a relatively easy build to a more difficult place and not fit with the original spirit of a 'Tribute'. Chris and Dan are ever resourceful at finding lateral solutions and I too can't wait for the next update.
26 Jul 2014, 11:54am
Perhaps a complete fibreglass replacement door skin with integral window frame with a channel to take sliding glass/perspex side windows would be the most elegant solution.

If you look at an original, the doors open quite a way forward of the windscreen, so the BMW doors won't need shortening, just extending back to fit the opening.

I'll take mine in Argento...

27 Jul 2014, 7:59am




Two side on shots of 250 SWb`s , how can the same car! look so different , so which ever door line i end up with it will be right :icon_wink: Geoff .
27 Jul 2014, 8:25am
As the originals seem to have so much variation, with quarter lights, without quarter lights and then different shaped glass frames, wouldn't it be easier to do away with any upper running frame and use a one piece that would fit the opening perfectly, similar to the 250 Californias?



This picture shows one with a hardtop fitted and the window line looks very nice and clean?
27 Jul 2014, 8:48am
Morning Mike , good photo those side windows look very similar to the standard Z3! , my plan is to have frameless windows , thanks Geoff .
27 Jul 2014, 10:26am
casamolino wrote:

Two side on shots of 250 SWb`s , how can the same car! look so different , so which ever door line i end up with it will be right :icon_wink: Geoff .


Morning Geoff
Like most hand built cars, and especially ones built for racing there were a number of subtle changes over it's short lifespan.

According to the RM Auction website:
"In both versions, “Lusso” and “Competizioni,” Ferrari constructed less than 200 SWB Berlinettas in total, these being built to three or four different specifications as to their external details – window configurations, marker lamp locations, body vents, etc. Also, one must remember that since these cars were totally hand-fabricated, in reality each SWB Berlinetta, while similar in appearance, is totally unique! Aesthetically they are unmistakably Ferraris – aerodynamic and devoid of superfluous bulk or embellishment with minimal overhangs and body corners wrapped around the polished Borranis. The general appearance of these fastback projectiles speaks of power and purpose. "

Power and purpose eh. Just like all of us!

The roof profile was changed in 1961. I can't find evidence if this was due to manufacture of body shells changing from aluminium to steel.
Steve.
27 Jul 2014, 2:18pm
Whilst this isn't the right profile for a SWB, a separate quarter light could work well as shown on this 250 GT Cabriolet Speciale which has a door window shape very similar to the Z3



27 Jul 2014, 4:54pm
alloy and steel cars were built concurrently, and any detail changes would be equally at the discression of the coach builder ot customer.

Worth bearing in mind a lot of these were (literally!) formed using a tree stump, so the 2 sides of the same car may nor even be identical!

I once measured the lengt of the driver and passenger side doors of a 275 we had and there was quite a big difference in the length (over an inch! Precision it was not! I think the argument was "well, you'll never see both sides at the same time, so it soesn't matter"
27 Jul 2014, 6:36pm
y cymro wrote:
Whilst this isn't the right profile for a SWB, a separate quarter light could work well as shown on this 250 GT Cabriolet Speciale which has a door window shape very similar to the Z3





That was one of the possibilities I'd thought through - a glass fillet attached to the rear bodywork with an 'H' section channel for the BMW side glass to slide up and down in on its front edge.

Then I realised that due to the length of the door it would get ripped off when you opened the door with the window up, and would be hanging in thin air if you wound the window down first.

Anything like that would need to be attached to the door in its own frame over the extension at the back of the BMW door, with the frame extending forward over the side glass to the top of the front quarterlight to make it strong enough not to fall off if someone (inevitably) shoulder barges it as they climb aboard. (hope that makes sense)

Intriguing stuff, can't wait to see the car morph into a production ready kit.
27 Jul 2014, 6:53pm
I'm still thinking that scratch built stripped out racer look doors with sliding windows in alloy frames could be the way to go -

27 Jul 2014, 8:26pm
Mister Towed wrote:
Interesting idea, is that going to be an alternative to the Z3 donor, or is it a complete change of direction?

I'm still wondering how you'd address the angle of the back of the door glass using the BMW doors with a Z3 donor.

Maybe scratch built fibreglass doors is the way forward. They'd also cut the weight down and it shouldn't be too hard to sell on the donor's doors.

Hoping to see some progress soon...


Just an idea to use a pre-existing windscreen/door glass as another option for those, like yourself, who may require a more period base vehicle. Full steam ahead on the Z3 version, which will be the easier build option for most customers I feel.
27 Jul 2014, 8:56pm
Having already built one car on an old chassis I'm actually inclined to go down the Z3 donor route for a 'winter' car, and the 250SWB would fit the bill nicely.

Sorry if I keep fishing for info on how the door glass will work, but it just looks like the biggest hurdle in getting it to look right to me.

I'll shut up now and wait to see how you tackle it, I have every faith it'll look fantastic. :)
28 Jul 2014, 3:28pm
Er the headlight covers on the California look like the Alfa spyder duetto still available to buy. £85 or their abouts before postage and packaging for a pair. And use of the swb front with those laid on the bonnet nose.