General 4x4 TA from Devon to Umbria

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General 4x4 TA from Devon to Umbria

babbo_umbro

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We travel between Devon and Umbria twice a year and I keep some notes on how the trip goes. This was the first trip for the 4x4 TA so some reflections may be of interest, remembering that we've also done the same journey in a 100HP and a 1.2 Mk3 in the last few years.

The 4x4 had just over 2000 miles on the clock when we left Devon earlyish on Wednesday 11 September and we covered 1350 miles to arrive near Spoleto on Saturday 15. We've normally taken a day less but my doctor has advised me not to drive for too long for the foreseeable future so we did three overnight stops. The shortest route - via the Channel Tunnel, Lille, Luxembourg, Nancy, Mulhouse, Basle, Milan, Bologna, Florence, Val di Chiana, Perugia, Spoleto - is actually 1250 miles, but a voluntary detour to take in a favourite hotel and an enforced one because the direct route from Basle to the St Gottard tunnel was out of commission added a hundred miles.

The car performed very satisfactorily. Load was two adults and probably 60 kilos of luggage. There are lots of places where cameras make it advisable to observe the speed limits so a good deal of motorway running was at 70 or 80 mph (3200-3700rpm), where the 4x4 was very relaxed with ample reserve of acceleration if needed. Speed crept up to 90 mph (4200 rpm) at times on the autostrada and the car was still well within itself. There's a longish stretch in the Vosges in east-central France on single track, slow roads, climbing the upper Moselle valley and going over the Ballon d'Alsace where lorries dictate that you amble along. I was pleasantly surprised that we averaged just under 42 mpg overall as I'd been getting in the mid-30s previously around Devon. The warmer weather in Italy helped a little but the cold weather all the way till south of the Alps didn't.

Pleased to say that Fiat seem to have sorted the spring and (especially) damper rates out on the 4x4 - supple but well controlled at all times. My test for body control is the stretch of the A1 between Bologna and Florence - quite steep, long climb and descent, dual carriageway with two lanes for most of the way till the never-ending improvements materialise. The lanes are quite narrow, the armco is right alongside the overtaking lane, and the inside lane is full of lorries, some of which are huge; there are numerous long, steepish bends with a very ripply surface, and concrete sections with mis-aligned joints, often oblique to the direction of travel, imparting a jolt to each corner of the car in turn; all this puts a premium on the car giving the driver confidence. The 100HP was not great on this till I put adjustable Konis on the back but the 4x4 was very reassuring, never wallowing but soaking up the bumps. I'm running on the original equipment M+S tyres so experimenting with tyres will have to wait till these have worn, but their 65 section obviously reduces jolts to the occupants. The best way to approach these long quickish bends is to make some definite early steering input to take up the give in the suspension bushes and the squidge in the tyres and to establish the angle of roll - which is not excessive - rather than to be tentative.

Brakes are reassuring under heavy applications from 80-90 mph. Distance between fill-ups is close to 300 miles, though I have to stop to exercise every hour and a half, so this was not a limiting factor for us. The autoroutes in Belgium can be really rough and this was the only place where I ever found the 100HP's ride a bit wearing but the 4x4 was a distinct improvement, swallowing up the worst of the ripples and pot holes with no fuss. The minor roads in our part of Italy are in an appalling state and the 4x4 shows up well here.

The seats are OK on long spells, though not special and somewhat lacking in under-thigh and sideways support.

Finally, the last short stretch is up a steep, white (ie gravel) road, which was distinctly not the 100HP's forte, putting a premium on traction and ground clearance - complete doddle in the 4x4, of course.

In general, traffic conditions weigh so heavily on the rate of progress these days - and, as an aside, the amount of goods traffic was the heaviest I've seen for three or four years, suggesting that commerce in Europe really is picking up - that the 4x4 probably covers this trip in much the same time as the 100HP, though there is not the opportunity to play bears at times and exploit the 100HP's 95 mph cruising speed, or to enjoy its roadholding round those long bends. The two cars are probably different enough to make direct comparisons almost meaningless, with the 4x4 slightly better on mpg. In some ways the 4x4 is more comparable to Mrs b_u's (Mk3) 1.2, with the 4x4 TA superior in every way, except on fuel consumption where the 1.2, working hard on this sort of journey, would give about 45mpg.
 
Thanks, enjoyed reading that. Don't think I will be doing a journey like that in the near future but it is good to know that the Panda can handle it.
 
Tootling around on short local trips, with aircon on most of the time, mpg for the trip now 41.5. We'll be 5-6000 feet up in the mountains in the next day or two with some enticing white roads to tackle. In the meantime, here's my 4x4 beside our neighbour's Mk 2 4x4 trekking - shows how the model's expanded. The trekking is used as a workhorse in the woods round here so it's had a hard life for twenty years or so.
 

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Another good trip. A good comparison would be a trekking, to see how the suspension and fuel economy compare for a car which would be just as capable on the white roads.
Thanks for the hint about the shut roads in will be driving to Turin this weekend.

That stretch from bologna to pisa is a great run as I normally have to hurry and in a hire car. I remember pushing an early multijet panda to the very limits along there and then went and bought one.
 
We set off to come back to Pudding Island next Tuesday, so I'll update the thread when we get back.

I'm sure a Trekking would be just as competent on most of the white roads but there are stretches that are really just more or less dry stream beds where you can find yourself on three wheels occasionally, or quite often with one wheel in light contact, where the 4x4 might have the edge. We're not in Umbria where there's snow in our area every year, sometimes several feet deep, but the edge of Dartmoor can become quite dodgy, especially on the northern side where some roads - such as the one we live on - don't get any sun on the surface for several weeks in mid-winter. Mrs b_u wrote off her much liked Panda MJ a couple of hundred yards from home a few years back so this is another reason for the 4x4.

Like you, I'd like to see an mpg comparison under similar conditions. By the way, we had the air con on for, I guess, a quarter of the trip down here and at least half the time while here.
 
Put the 4x4's off-roadability to the test in the Sibillini mountains, between Umbria and the Marches. There's a stiff climb from Norcia to Forca Canapine, reaching just over 5,000 feet. From there we took a white road - quite a bit more severe than the majority of white roads in central Italy, which are gravel roads of varying roughness and steepness. The track from Forca Canapine down into the Piano Grande is just that, no gravel just rocks and steep in places, about 1 in 3 I'd guess. We dropped about a thousand feet in a couple of miles, going very slowly in first gear and picking our way around lumps of rock, surrounded all the time by spectacular mountain scenery. We had ELD engaged all the time. The downhill leg showed the limitations of the TA's engine - 900cc with a relatively low compression ratio - and braking was necessary the majority of the time. The dappled effect from bright sunlight and deep shadows from overhanging trees sometimes made it difficult to find the least rough path; that was hardly the Panda's fault but reflections in the windscreen from the top of the dash were. The suspension coped really well with the very rough conditions and some anxious moments were unfounded as the 4x4's ground clearance proved to be adequate.

The uphill return was much easier with gravity limiting speed and the TA pulling very strongly in first gear. After that we went up a ski slope for about a quarter of a mile - fairly smooth grass at a steady 45 degree angle, which the car just ambled up, though the downward return required constant braking.

There were times going steeply uphill - such as the ski slope or some of the loose parts of the track - when I suspect the Trekking's front-wheel-only drive would have posed some traction issues, which were completely absent in the 4x4.

I also tried braking really hard on a downhill stretch of normal white road - about 30 mph, steep, rutted and quite ripply, with gravel of varying depth, and a drop of thousands of feet not far to the side - the ABS cut in and the 4x4 just came to a civilised stop.

Oddly enough, despite all this low gear, steep slope stuff, and with air con all the time, the overall mpg for the whole trip has eased up to 41.5, probably as a result of the relatively low speed of the traffic on the main(ish) roads in the area, though there is a long climb from 2,000 to 5,000 feet. The TA's torque was a real boon on this section.

The attached photos don't really give an impression of the gradients involved but they do show the nature of the surface and suggest the wonderful empty scenery.
 

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The attached photos don't really give an impression of the gradients involved but they do show the nature of the surface and suggest the wonderful empty scenery.

Thanks for your account and photos! I too find the dashboard reflections and TA's lack of
engine braking are annoying at times. The only off-roading I've done in my Trekking is the
2km rough track to Tyncornel youth hostel in deepest mid-Wales, which is steep and rocky
in a few places, no problem for the Panda, but might be fun with snow cover :)

The track beyond the YH is a serious proposition which does need a capable 4x4 though...



Chris
 
Thanks for your account and photos! I too find the dashboard reflections and TA's lack of
engine braking are annoying at times.



Chris

I am really surprised. I have had several twin motorcycles ans the engine breaking is fabulous meaning that I rarely have to use the brakes.

Kevin
 
To eliminate reflections off the screen, invest in a pair of polarised sun specs.
Instant clear windscreen. The benefits are immense!

That's a really useful tip - we're back on Pudding Island next week so I'll get a chance to try it out when we come back out to Italy next spring. (In fact the weather in Italy has been diabolical the last couple of days with grey skies, thunder storms and torrential rain.
 
I am really surprised. I have had several twin motorcycles ans the engine breaking is fabulous meaning that I rarely have to use the brakes.

Kevin

I don't think it's the twin-ness - although that halves the number of firing strokes per revolution of the crankshaft compared to a four cylinder - more the fact that it's a small petrol engine with the compression ratio limited by the use of a turbo.
 
A Turbo engine has to have lower compression, aiming for final maximum allowable pressure inside the cylinder once maximum Turbo induced intake pressure increment is accounted for.

On the other hand, an atmospheric pressure engine can have much higher compression (even more when on a motorcycle, for reasons not relevant here), thus engine braking would be much more pronounced.
 
A Turbo engine has to have lower compression, aiming for final maximum allowable pressure inside the cylinder once maximum Turbo induced intake pressure increment is accounted for.

On the other hand, an atmospheric pressure engine can have much higher compression (even more when on a motorcycle, for reasons not relevant here), thus engine braking would be much more pronounced.

Good explanation - I was wondering about that, as my m'cycle pulls up quick and hardly use the brakes under normal situations.
 
Comparing atmospheric petrol engine braking between car and motorcycle, lower overall mass of motorcycle plus rider would mean that same decelerating force (from same displacement engine) would have a much greater effect slowing down the vehicle.

Between diesel and petrol (same displacement) car engines, diesel has a definitive advantage on engine braking, operating at almost twice as much compression, Turbo or otherwise.
 
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But my bikes were 650cc 4 stroke so it shouldn't make any difference.

But how much does a bike weigh? A quarter of a ton? Less? It's a fraction of the weight of a Panda 4x4 TA, the engine is almost as big, and the compression ratio's significantly higher. The Panda's fairly low first gear is the only factor that would make its engine braking more effective than a bike's.

See comments by asxetos and Ironlung.
 
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