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Re: Quantum Coupe - Discussion [Re: coupedummy] #1067519
10/07/2010 12:27
10/07/2010 12:27
Joined: Dec 2005
Posts: 33,520
Berlin
barnacle Offline OP
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Berlin
Easy, division of labour is that I'm doing the basic design and particularly the load analysis for the structure; we're sharing the spannering and the zizzer gun, and Joe's doing all the cutting and welding.

Sam is teasing me. There's nothing wrong with building a car based on three small hand-drawings. (As it happens, I have a 35-year-old Tech Drawing 'O' level!)

Didn't need to kill anyone on the train, Sam - ask me on monday!

The pictures now hang around with captions and occasionally comments to explain. Address as above.

Now there will be a small pause for a few weeks while Joe and I catch our breaths. The car has been left at Joe's rather than bringing it back here as there were still things that needed decisions based on comparison of 'which bit fits best'.

In particular - we're not planning to use an oil cooler, just the oil/water heat exchanger from the 20NA. This isn't a track car, just fast road, and it's only towing three-quarter's of the weight of a coupe. We may need to reconsider that choice later.


[Linked Image]
Don't get no respect! Coupe Fiat 1994-2000 - an owner's guide <-- clicky!
Re: Quantum Coupe - Discussion [Re: barnacle] #1067525
10/07/2010 12:35
10/07/2010 12:35
Joined: Oct 2007
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S
samsite999 Offline
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,
Interesting choice about the oil cooler?

Is it a case of you genuinely do not think you will need it or are there location issues with the standard 20vt oil cooler.

I can see your point to an extent, Oil takes a long old time to get hot on the 20vt and you are pulling at least half the weight.

Good luck with the rest of the project!

Re: Quantum Coupe - Discussion [Re: samsite999] #1067527
10/07/2010 12:38
10/07/2010 12:38
Joined: Dec 2005
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Berlin
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Berlin
Bit of both, Sam. There's the weight issue, too, though I think we could get it in the same place as the original.


[Linked Image]
Don't get no respect! Coupe Fiat 1994-2000 - an owner's guide <-- clicky!
Re: Quantum Coupe - Discussion [Re: barnacle] #1067549
10/07/2010 13:42
10/07/2010 13:42

M
Marco20valveT
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Marco20valveT
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M



Neil what will be the power to weight ration on that thing??

Also what's the handling like??

Re: Quantum Coupe - Discussion [Re: ] #1067562
10/07/2010 14:40
10/07/2010 14:40
Joined: Dec 2005
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Berlin
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Berlin
Ask me about the handling when it's finished... power to weight will be in the order of 300/ton.

At the moment the handling is excellent, and it's not a bad ride either apart from the too-soft rear springs. We'll need new springs fore and aft; clearance is about 90mm at the moment. The current problem with the handling was that the throttle, clutch, and brake response was very non-linear.


[Linked Image]
Don't get no respect! Coupe Fiat 1994-2000 - an owner's guide <-- clicky!
Re: Quantum Coupe - Discussion [Re: barnacle] #1067568
10/07/2010 15:29
10/07/2010 15:29
Joined: Feb 2007
Posts: 3,275
West Berks
skinflint Offline
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Thanks for posting the photos.
It looks to be going well- I'm really surprised how much you have achieved in a week. thumb

I hope you've had time to get the large hammer out and also to swear a bit.

Re: Quantum Coupe - Discussion [Re: skinflint] #1068388
12/07/2010 08:54
12/07/2010 08:54
Joined: Dec 2005
Posts: 33,520
Berlin
barnacle Offline OP
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Berlin
Here: http://www.nailed-barnacle.co.uk/Quantum/Quantum%20upgrade.pdf is a *large* pdf describing the week in slightly more literate prose, just dashed off in a hurry for Quantum Mechanics (the quantum owner's magazine).

It's a 14M download; don't bother if you have a dialup!


[Linked Image]
Don't get no respect! Coupe Fiat 1994-2000 - an owner's guide <-- clicky!
Re: Quantum Coupe - Discussion [Re: barnacle] #1070831
16/07/2010 15:00
16/07/2010 15:00

M
MattW
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MattW
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M



Originally Posted By: barnacle
Ask me about the handling when it's finished... power to weight will be in the order of 300/ton.


About the same as a 400 bhp Coupe then. That will shift. laugh

Re: Quantum Coupe - Discussion [Re: ] #1070927
16/07/2010 18:36
16/07/2010 18:36
Joined: Dec 2005
Posts: 33,520
Berlin
barnacle Offline OP
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Berlin
Originally Posted By: MattW
That will shift. laugh


That point had not escaped my notice. laugh


[Linked Image]
Don't get no respect! Coupe Fiat 1994-2000 - an owner's guide <-- clicky!
Re: Quantum Coupe - Discussion [Re: barnacle] #1071806
18/07/2010 22:22
18/07/2010 22:22

S
shinyshoes
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shinyshoes
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S



just keep your eyes peeled for stan in your rear view mirrors!!



cop

Re: Quantum Coupe - Discussion [Re: ] #1071875
19/07/2010 08:53
19/07/2010 08:53
Joined: Dec 2005
Posts: 33,520
Berlin
barnacle Offline OP
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Berlin
He's my friend, Stan is... (checks frozen doughnut supply)


[Linked Image]
Don't get no respect! Coupe Fiat 1994-2000 - an owner's guide <-- clicky!
Re: Quantum Coupe - Discussion [Re: barnacle] #1071892
19/07/2010 09:32
19/07/2010 09:32

M
Marco20valveT
Unregistered
Marco20valveT
Unregistered
M



lol do you want a hand with this at any time mate??

if so... you have my number!! drop me a text and im more than happy to come and help!

Re: Quantum Coupe - Discussion [Re: barnacle] #1071896
19/07/2010 09:48
19/07/2010 09:48
Joined: Feb 2007
Posts: 3,275
West Berks
skinflint Offline
I need some sleep
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West Berks
Originally Posted By: barnacle
Here: http://www.nailed-barnacle.co.uk/Quantum/Quantum%20upgrade.pdf is a *large* pdf describing the week in slightly more literate prose, just dashed off in a hurry for Quantum Mechanics (the quantum owner's magazine).

It's a 14M download; don't bother if you have a dialup!

Just had a read of this. Entertaining stuff thumb

Re: Quantum Coupe - Discussion [Re: skinflint] #1071943
19/07/2010 11:45
19/07/2010 11:45
Joined: Dec 2005
Posts: 33,520
Berlin
barnacle Offline OP
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Berlin
The current plan is first to try and resolve the issues with the Ford parts. A lot of back and forth has established that whatever those hubs and driveshafts are, they *ain't* off a Fiesta, or indeed anything else on the ford car range.

So the current plan is to source complete hubs, hub carriers, brake callipers, and driveshafts from both sides, so we know what we're working with. After that, we bolt on Mondeo V6 discs (280mm) and brakes, and sort out the spring rates - I've located a supplier, but I need to do the sums on them to calculate the correct rate. I also need to find some 15" wheels to fit the larger brakes in.

After that, the engine comes out again so we can mount the pedal box and steering column, and rerun the brake pipework. We can probably paint the steelwork at that point, get the engine back in, sort out the plumbing and the air feeds, mount the radiator, find a place for the intercooler, decide finally which way we cool the oil, run all the cables, build the instrument panel into the dash, and get the wiring loom installed.

Reminds me - need to change the insurance!


[Linked Image]
Don't get no respect! Coupe Fiat 1994-2000 - an owner's guide <-- clicky!
Re: Quantum Coupe - Discussion [Re: barnacle] #1074137
22/07/2010 09:39
22/07/2010 09:39
Joined: Jun 2007
Posts: 1,027
Carlisle
Rob40 Offline
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Carlisle
Saw this up at Joe's the other day and the work so far looks very, very good. thumb
Takes me back to the days when we were throwing Fiat twin cams into Capris, Escorts etc, trial and error, head scratching and swearing all being part of the process.

The engine looks to be as far back behind the front wheels as room permits so the handling shouldn't have been spoiled too much, not sure what the weight difference is between the two drivetrains.

So long as the rest of the chassis will cope with the extra power over the original design, this will be a screamer.

You may find that an oil cooler might well be needed; although its not having to work as hard dragging a lighter body around, those extra horses will be generating that little bit more heat and you'll probably find that your right foot will be planted firmly on the floor more often as the accelleration addiction takes hold laugh


This is how it should have come out of Torino!
Re: Quantum Coupe - Discussion [Re: Rob40] #1074854
23/07/2010 11:28
23/07/2010 11:28
Joined: Dec 2005
Posts: 33,520
Berlin
barnacle Offline OP
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Berlin
Thanks!

Joe's just located a set of XR2i (=Fiesta MK3) hubs and shocks and driveshafts, so with that we should be able to get the new CVs sorted and drive shafts made.

Regarding cooling - we'll have to see. I find that the 20vt engine runs very cool on oil temperature anyway - I think it's thermostatically controlled, and it's possibly never getting up to cooling-required temperatures. I'll have the metering to be able to see what's going on.

The weight difference is sufficient that the springs are 30mm lower than they should be... now if only I knew what the spring rate on the standard springs was I could work out what I need to sort that!


[Linked Image]
Don't get no respect! Coupe Fiat 1994-2000 - an owner's guide <-- clicky!
Re: Quantum Coupe - Discussion [Re: barnacle] #1085929
13/08/2010 13:32
13/08/2010 13:32
Joined: Dec 2005
Posts: 33,520
Berlin
barnacle Offline OP
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Berlin
Right, this one's starting to move again.

Just won a set of Focus Ghia wheels (the fifteen inch ten-spokes) complete with tyres which I will no doubt have to replace. They'll fit around the Mondeo V6 disks and callipers which will themselves fit on the XR2i struts and hubs and might give it some stopping power commensurate with the mass and potential speed of the thing.

Shopping list now:

Mondeo 280mm disks - £34.46
Mondeo pads - £21.03
Mondeo calipers - £126.38 or perhaps twenty quid of the Bay... possibly the first port of call anyway since I've found a pair there that include the necessary slide carriers - new calipers don't come with those!

Will also need a pair of front shocks - I'll start with standard, I think, and see how they bounce! - and some new springs fore and aft, which I can't order until I've done some measurements on the originals.

I'm over to Joe's for a day's fettling in a couple of weeks, and will let you know what happens then.


[Linked Image]
Don't get no respect! Coupe Fiat 1994-2000 - an owner's guide <-- clicky!
Re: Quantum Coupe - Discussion [Re: barnacle] #1085932
13/08/2010 13:34
13/08/2010 13:34

M
Marco20valveT
Unregistered
Marco20valveT
Unregistered
M



Neil when you go to Joe's give me a shout! i will come up with you and see uncle Joe!

Re: Quantum Coupe - Discussion [Re: ] #1086058
13/08/2010 16:17
13/08/2010 16:17
Joined: Dec 2005
Posts: 33,520
Berlin
barnacle Offline OP
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Berlin
You have pm.


[Linked Image]
Don't get no respect! Coupe Fiat 1994-2000 - an owner's guide <-- clicky!
Re: Quantum Coupe - Discussion [Re: barnacle] #1088775
19/08/2010 22:15
19/08/2010 22:15
Joined: Dec 2005
Posts: 33,520
Berlin
barnacle Offline OP
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Berlin
Right, some bits on the way...

The wheels have arrived - tyres are rubbish but that was expected, not complaining at seventy quid for a decent set of alloys.

Just won an ebay auction for the calipers, mounts, and all the hardware (annoyingly, none of the caliper replacements include the mounts) so they'll be in the post soon.

Eyeballing KYB Ultra-SR shocks, plus rubbers, 280mm discs and brake pads from buypartsby - about a hundred thirty quid.

Then it just needs the odds and sods - bearings and CV joints and sorting the drive shafts. Should be a busy day next Friday...


[Linked Image]
Don't get no respect! Coupe Fiat 1994-2000 - an owner's guide <-- clicky!
Re: Quantum Coupe - Discussion [Re: barnacle] #1107259
26/09/2010 16:39
26/09/2010 16:39
Joined: Dec 2005
Posts: 33,520
Berlin
barnacle Offline OP
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Berlin
Another couple of days work this week. The pedal box is now in place - with the exception of the clutch master, which might need a little frame making to mount it square and perhaps change the angle of the actuating arm.

Sorted out some proper bolts for the wheels; much more secure. But sadly, though we've finally located the correct MK2 Fiesta CV joints, the supplier didn't send the bearings <grrr> so the front wheels aren't back together.

So I've stuck some photos on the documentation thread.


[Linked Image]
Don't get no respect! Coupe Fiat 1994-2000 - an owner's guide <-- clicky!
Re: Quantum Coupe - Discussion [Re: barnacle] #1111620
05/10/2010 19:46
05/10/2010 19:46

S
sediciRich
Unregistered
sediciRich
Unregistered
S



this is a great project, keep it up Neil!!

Re: Quantum Coupe - Discussion [Re: ] #1111885
06/10/2010 10:51
06/10/2010 10:51
Joined: Dec 2005
Posts: 33,520
Berlin
barnacle Offline OP
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Berlin
It's all starting to come together, Rich. Now I'm waiting for Joe to get back from wherever, and we reckon another two or three hard days will see it driving (if unfinished!).


[Linked Image]
Don't get no respect! Coupe Fiat 1994-2000 - an owner's guide <-- clicky!
Re: Quantum Coupe - Neil and Joe's secret project! [Re: barnacle] #1120472
25/10/2010 12:31
25/10/2010 12:31

B
B14WRC
Unregistered
B14WRC
Unregistered
B



Hi Barnacle.

How is it going? I would not be worried about my project, a) its going to take a long time to finish and b) its completly different.

I am build a mid engined 'Locost' style car. Basically a lotus 7 or caterham style car, but with the engine in the back and i am building it entirly from scratch. I have designed the whole chassis my self basing my ideas around the 'haynes' book you can buy.

I am looking at a car weighing around 500kg - so rightly so sould be a fairly rapid machine. smile

I have nearly finished braking the car, so once thats out the way the next step is to actually build the chassis, i still have a lot of design work to do at the rear end of the car. So thats what i will be doing over the winter. smile

Rob

Re: Quantum Coupe - Neil and Joe's secret project! [Re: ] #1121220
26/10/2010 15:17
26/10/2010 15:17
Joined: Dec 2005
Posts: 33,520
Berlin
barnacle Offline OP
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Berlin
So you'll be using the front of the coupe as the back of the kit? Like the old mini kits used to work? In which case you'll need something like the frame we constructed for the front of the Q to hold it - let me know if you need any dimensions.

From memory, you can keep the top of the engine to 25" off the ground; should make quite a low car.

Will you start a projects thread?


[Linked Image]
Don't get no respect! Coupe Fiat 1994-2000 - an owner's guide <-- clicky!
Re: Quantum Coupe - Neil and Joe's secret project! [Re: barnacle] #1121354
26/10/2010 19:04
26/10/2010 19:04

B
B14WRC
Unregistered
B14WRC
Unregistered
B



Hey,

Yes I have requested access today. Probably start the tread at the weekend when I have more time.
I have designed the car my self and made the frame in wood, this mock up will be refinned before the serious metal work starts. Used a 2D CAD package to draw the frame.

The engine will be in the back and yes hope it will be low. wink

The coupe shell should be gone on Friday so that will be good. Still have to sort my garage out before the build begins.

By the way, how do you upload photos?

Cheers, Rob

Re: Quantum Coupe - Neil and Joe's secret project! [Re: ] #1121391
26/10/2010 20:30
26/10/2010 20:30
Joined: Dec 2005
Posts: 33,520
Berlin
barnacle Offline OP
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barnacle  Offline OP
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Berlin
For the photos, you need to host externally on e.g. photobucket - one of the hosts that doesn't need a password to view. Then you need to use the [ imgpop ] and [ /imgpop ] to frame the direct link.

It occurs to me that the coupe solves a lot of the issues with front-wheel drive moved to the middle... the rear tracking is obvious, but the hydraulic clutch and gearbox cables means you can probably avoid some of the vague gearbox problems, and the electric speedo and revs means your instruments work off the shelf. You need to solve the handbrake problem, of course, and the brake balance to the driven wheels, but that shouldn't be too difficult to sort.

Make sure you keep *all* the electrics - looms, lights, whatever. You can throw away later what you don't need.

My first kit car was originally intended to be a single-donor Triumph Dolomite source, but I used a separate chassis with timber and aluminium sheet, and ended up with a nissan engine and fuel tank, cortina front subframe and suspension, escort rear suspension and axle with panhard rod, datsun 240z steering and instruments... and spitfire seats. And I bought a double-decker bus - for a fiver - just to get the nice alloy fuel filler cap!


[Linked Image]
Don't get no respect! Coupe Fiat 1994-2000 - an owner's guide <-- clicky!
Re: Quantum Coupe - Neil and Joe's secret project! [Re: barnacle] #1124152
01/11/2010 13:34
01/11/2010 13:34

B
B14WRC
Unregistered
B14WRC
Unregistered
B



Barnacle,

Please see my project, not had time to start the write up...........

http://i1126.photobucket.com/albums/l603/b14wrc/photolineup.jpg[/IMG]" onclick="window.open('http://www.fiatcoupeclub.org/forum/imagepopup.php?image=[IMG]http://i1126.photobucket.com/albums/l603/b14wrc/photolineup.jpg[/IMG]', 'imagepopup', 'toolbar=no,scrollbars=yes,width=300,height=300'); return false;">http://i1126.photobucket.com/albums/l603/b14wrc/photolineup.jpg[/IMG]" style="border: 1px solid black; padding: 5px;" height="60" vspace="5" alt="click to enlarge">

http://i1126.photobucket.com/albums/l603/b14wrc/IMG_0050.jpg[/IMG]" onclick="window.open('http://www.fiatcoupeclub.org/forum/imagepopup.php?image=[IMG]http://i1126.photobucket.com/albums/l603/b14wrc/IMG_0050.jpg[/IMG]', 'imagepopup', 'toolbar=no,scrollbars=yes,width=300,height=300'); return false;">http://i1126.photobucket.com/albums/l603/b14wrc/IMG_0050.jpg[/IMG]" style="border: 1px solid black; padding: 5px;" height="60" vspace="5" alt="click to enlarge">

Cheers Rob

Last edited by B14WRC; 01/11/2010 13:38.
Re: Quantum Coupe - Neil and Joe's secret project! [Re: ] #1131833
17/11/2010 17:06
17/11/2010 17:06
Joined: Dec 2005
Posts: 33,520
Berlin
barnacle Offline OP
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Berlin
Ok, I'm back on this one for a couple of days - let's see if we can get the thing moving under its own steam!


[Linked Image]
Don't get no respect! Coupe Fiat 1994-2000 - an owner's guide <-- clicky!
Re: Quantum Coupe - Neil and Joe's secret project! [Re: barnacle] #1132087
17/11/2010 23:28
17/11/2010 23:28
Joined: Dec 2005
Posts: 19,937
North wales
pinin_prestatyn Offline
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North wales
Steam? Now that is novel! Wonder if it'll catch on crazy laugh



Coopless!
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