F-Type: Well, Now I've Seen Everything...

F-Type: Well, Now I've Seen Everything...

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Discussion

montecristo

1,044 posts

178 months

Thursday 5th December 2013
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George29 said:
michael gould said:
I was once described by a women as the most arrogant man she had ever met
A police officer once told me that too!
Some senior guy at Goldman Sachs called me that, shortly after I'd referred to his colleague as "some senior guy".

Speedraser

1,657 posts

184 months

Friday 6th December 2013
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pb1695 said:
Speedraser said:
I seriously doubt that Jaguar would have mounted the V6 as far forward as it did if the engine wasn't as long as the V8. The notion of 50/50 weight distribution being "perfect" is, like so many things, a matter of opinion. Many car companies, including Ferrari (which knows a fair bit about making a car handle), has said that a mildly rear-biased weight-distribution is preferable to 50/50. All of Ferrari's current cars -- front engined models and mid-engined models -- have a rear-biased weight distribution.

About that V6... so it seems that the outcome is that it is built on the V8-length block and has a V8-length crank. Sorry, not good enough (and I am a big fan of Jaguars). I like engineering, and this is a compromise too far. Jaguars may not be Aston-expensive, but they sure aren't cheap cars. No doubt most buyers won't know or care. But I know, and I care, and it turns me completely off.
I can understand how you are arriving at your viewpoint however, if it is such a bad compromise, how come the car drives so well! Surely that is all that matters.

From a technical point of view, a 50/50 balance is used as optimal because it generally creates a natural tendency to initially understeer, which most manufacturers dial in in order to ensure the car does not throw up any surprises to the unsuspecting driver. The F Type has a very sharp turn in and feels neutral in a corner, it does not oversteer unless it is provoked by power, hence it feels very controllable.

Ferrari and others who set their cars up with an element of rear weight bias do this because they anticipate the cars to be used on track, and they wish to play on their racing heritage. A rear bias is optimal for that type of use as the need to ensure the transfer of mass allows for the need to set the car up for a corner, and ensure their is still plenty of weight over the rear tyres during the corner to ensure their is plenty of grip (sorry if this is over simplified but to go into full details could take forever and require many diagrams!).

Anyway, the point is, the F Type drives and handles exceptionally well, the V6 is a peach of a unit and I think you are worrying too much about what is in effect, an irrelevant but necessary compromise.
That the F-Type drives well -- and it does -- is obviously very important. But it is not all that matters. Jaguar could surely have dropped, for example, a Corvette engine in the F-Type and it would drive really well -- it's a light, powerful and torquey engine. I wouldn't be at all surprised if the Z06 engine weighs less than the similarly potent Jaguar supercharged V8, so the resulting car would probably handle better than the V8S. But it just wouldn't be right, would it?

No need to worry about over-simplifying with respect to weight distribution and weight transfer, nor to delve into full details with diagrams -- I assure you I fully understand smile

divetheworld

2,565 posts

136 months

Friday 6th December 2013
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Lowering the centre of gravity with a dry sump system might also help with dynamics but then the costs would go up.

Little Donkey

1,544 posts

142 months

Friday 6th December 2013
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Meanwhile, back on the Aston Martin forum..............

cayman-black

12,671 posts

217 months

Friday 6th December 2013
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Little Donkey said:
Meanwhile, back on the Aston Martin forum..............
Every body loves the Jag! biggrin

FatFrank

133 posts

145 months

Saturday 7th December 2013
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DB9VolanteDriver said:
Regardless whether or not the back two cylinders are cast in place or not, the block is still V8-length, as is the crank. That is the problem, not whether there are blanking plates over empty bores or that the bores don't exist, as such. Take a look at the video posted above. A V6 engine built upon a V8 length block. Very bad...
I still am really disappointed that the Jag engine is constructed like this and, although the pics and YouTube link prove it, remain a little surprised that they have done this. The V6 crank must be the same length as the V8 but with probably less bearing and definitely less connection rod contact area. This must make it be prone to vibrations which in turn will likely lead to quicker wear.....Not to mention all the extra Kg that the car is carrying around for no dynamic reason except to slow it down and decrease fuel economy.........but most odd of all is the appearance of 5 inches of the block stick out passed the cylinder head. Bizarre.

Having said all that I drove a V6S and it was pretty impressive...LOL

michael gould

5,691 posts

242 months

Monday 9th December 2013
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cayman-black said:
Little Donkey said:
Meanwhile, back on the Aston Martin forum..............
Every body loves the Jag! biggrin
Have you ever noticed how some Jags are converted into Aston Martins but never the other way round......the reason why ? perhaps Jags are just not as aspirational

pb1695

390 posts

177 months

Monday 9th December 2013
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michael gould said:
Have you ever noticed how some Jags are converted into Aston Martins but never the other way round......the reason why ? perhaps Jags are just not as aspirational
Or perhaps the costs of converting something inferior would not be economically viable?

I think the aspirational argument may have died in a flurry of cheap finance deals and dealer discounts.........

Still, they do look mighty pretty! whistle

michael gould

5,691 posts

242 months

Monday 9th December 2013
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pb1695 said:
michael gould said:
Have you ever noticed how some Jags are converted into Aston Martins but never the other way round......the reason why ? perhaps Jags are just not as aspirational
Or perhaps the costs of converting something inferior would not be economically viable?

I think the aspirational argument may have died in a flurry of cheap finance deals and dealer discounts.........

Still, they do look mighty pretty! whistle
I think you might be right !!

Jon1967x

7,243 posts

125 months

Tuesday 10th December 2013
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Even cheap finance deals and dealer discounts leave V8V more than the F-type.

The F-type was the next big thing with long waiting lists and sold over list - a quick look on classifieds and they're selling at a significant discount already. Yes.. so is the Vantage, but then having taken advantage of that I still don't feel it taints the brand.

I've never dreamt of owning a Jag, not even an E-type, I have an Aston.

v8mgbgt

24 posts

281 months

Friday 12th January 2018
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A picture says a thousand words. They just cast out the 2 rear cylinders.

Could have move weight back 5 inches and lightened it maybe 25kgs.


northernmedia

1,988 posts

139 months

Friday 12th January 2018
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I wonder if the V6 Alfa (V8 Ferrari) engine is the same set up?

66MK

374 posts

108 months

Saturday 13th January 2018
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Jon1967x said:
Even cheap finance deals and dealer discounts leave V8V more than the F-type.

The F-type was the next big thing with long waiting lists and sold over list - a quick look on classifieds and they're selling at a significant discount already. Yes.. so is the Vantage, but then having taken advantage of that I still don't feel it taints the brand.

I've never dreamt of owning a Jag, not even an E-type, I have an Aston.
Me too, but I did have a deposit returned for the original F-Type...

and I think I might have rather enjoyed it had they had the Bcensoredlls to build it!


v8mgbgt

24 posts

281 months

Friday 13th July 2018
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Hi
Any know if the V6 and V8 flywheel mount is the same to help converting a V6 manual to V8 with upgraded clutch