Convert a 2+2 to a 2 seater - discuss.
Posted 28 November 2011 - 06:00 PM
Is it merely a 'cut - trim - shut' requirement? I think the doors are longer and might also have to be trimmed or 240z doors fitted. Just curious.
Posted 28 November 2011 - 06:22 PM
Posted 28 November 2011 - 07:13 PM
On the floor pan just before the upward bend to the firewall there is a seam that runs across from one inner sill to the other, these spot welds are released to allow the 2 seater rear to be welded in place.
The sills need to be sectioned at least 70mm back from the floor seam on the inner side, and another 70mm on the outer side to meet repair industry standards, if there is an inner reo the the reo needs to be sectioned 70mm back fro the inner cut and the outer 70mm from the center cut to create a stagered or step section, butt welding the sill sections together is structurally unsound and is not passable.
This 70mm staggering is the minimal measurements between sections, the longer the staggard cuts the better.
The window pillars have to be done the same way as discribed with the sills.
And if the rails cannot be released for a cut section with the rear cut, then the same stagering procedure needs to be done.
Hope this helps.
Posted 28 November 2011 - 07:57 PM
If someone has a photo of a 2+2 shell in the area behind the front seats I would be interested to have a look. Thanks.
Posted 28 November 2011 - 08:21 PM
The rest of the sectioning on the sills and floor would have to be done to the degree I mentioned previously.
The reason I know about cutting and shutting a Zed is because I did it on my panel shop partners 260z 20 years ago after he wiped off the front and we found a doaner front end.
Posted 29 November 2011 - 11:51 AM
Best to simply join the front end of a clean Z to the back end of a 2-seater Z & be done with it, should one have a couple of good shells laying around, as noted in a post above.
But nothing is impossible. There have been lots of modified cars over the years that look as if they could be factory products or factory prototypes. Take the 1960's-era after-market station wagon or shooting brake conversions of various cars like Mustangs & Zephyrs for instance - today they are highly collectible. And there are firms in the USA today who convert early Mustang hardtops into fastbacks or convertibles due to the preponderance of hardtops available (far more were built) & the far fewer sound rust-free fastbacks & convertibles.
Interesting topic & something that many & in particular 2+2 Z owners have no doubt pondered.
Posted 29 November 2011 - 01:20 PM
Or I could try and find a 2 seater roof which are not cheap but would be easier.
Posted 29 November 2011 - 01:34 PM
PS That brown zed was a $50 swizz cheese zed that was so dead and parted out . I didn't murder a good zed but i did practice on, salvage and murder a dead zed lol
Also the blue zed is a Photoshop of a 2+2 body with 2 seater roof line but i dont think it could be made in reality with out a lot lot of work
Posted 29 November 2011 - 08:18 PM
Posted 29 November 2011 - 09:54 PM
Interesting feedback by Patch, saying that the Z 2-seat pillars are different in angle to the 2+2, I had assumed the roof differences started immediately back from the windscreen top, not at the bottom. So on a sidenote, can 2+2 roof skins be used to infill sunroof holes on 2-seaters?
Posted 29 November 2011 - 10:35 PM
I reckon the longer 2+2 would make for a very sleek variant of the 2 seater look - more euro GT'ish. Best bet would be hot rod sites and seriously bone up on roof chops. The rear inner and outer pillars/quarters need serious modification to lower the height of the hatch hinge panel and hatch frame. Roof side rails from the rear of the door back would have to curl down to match. Modifying the roof skin to match... priceless!
Posted 30 November 2011 - 02:30 AM
The longer and wider wheel base of the 2+2 is meant to make it more stable so you could really have a kick ass hot rod. Retro fit 240z rear lights and most people wouldn't be able to tell the difference.
I would definitely mock up in Photoshop like chartoo second pic or use other 3d modelling to see if the proportions would work I imagine they would.
I'm pretty sure Mr Matsuo wanted a lower roof profile but in order to accommodate tall Westerners had to raise the roofline.
You could use the Toyota 2000gt for inspiration on rooflines since that car has 1 of the sexiest rooflines ever.
I'm sure I saw a guy who was working on a chop top 240z looked great will see if I can dig it up.
Posted 30 November 2011 - 07:34 AM
Okay I am going to say yes,and unless I can get a 2 seater roof for a reasonable price this end of the country I am going to try it, here are some pictures of how close it is, will need to just hopefully jack the middle of the top frame up 5mm to give the same bow in head rail as I need the head rail both sides. and at the door frame the roof cut will have a dog leg and the the roof will be welded on the top edge of the hatch frame and the 240 side rail.
Posted 30 November 2011 - 07:44 AM
Posted 30 November 2011 - 07:55 AM
Posted 30 November 2011 - 08:07 AM
Posted 30 November 2011 - 08:37 AM
Posted 30 November 2011 - 08:50 AM
Whilst I admire the massive task you are undertaking.
surely when all is done and completed the cost and time would not out wiegh just getting a 2 seater. Especially when looking at the resale value presuming it is going to be a road reg car.
Each to there own. :-\
Posted 30 November 2011 - 10:14 AM
What initiated this thread was an enquiry I had about a 250 GTO kit I am selling on eBay. Someone asked if it would fit a 2+2 and I said "no". However, I then started to think, (something I frequently do AFTER I have spoken!) considering there are body modifications required to fit the kit, although minimal, whether a 2+2 could in fact be adapted. As I stated before, it's a hypothetical.
A suggestion about the roof. If you were to cut out or unpick the existing roof of a car you are restoring I'm sure there are plenty of sheetmetal shops with an English Wheel that could make up a copy.
PS. The kit I am now fitting does away with the hatch and also has a fibreglass roof which sits over the original metal roof.
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