AutoCar - New TVR V8 first dyno test
Discussion
m4tti said:
Not afraid dave.. Just typically base my opinions on experience hence I'm not that vocal on the coyote. Also quiet as I'm mapping out my next build, rather than re-gurgitating the interweb. Have you put your build thread up yet 
The old "university of life" argument. Come on now. Although I'm happy to be educated. So why is my assertion and current belief that centrifugal blowers for automotive engines are s
te in comparison to a roots type is wrong. And if so, why do no OEMs use them? Personal experience with the Coyote engine is not relevant to this. Are you suggesting a centrifugal blower would be a good option for a future TVR?Genuinely interested to be put right, along with the rest of the pub, and the Internet.
no I'd agree
centrifugal blowers are an inferior choice compared to the positive displacement blower
the installations I've driven felt like a standard car with a lot more top-end go
there non of the low down punch you get with a PD blower and that you tend to associate with a powerful road car
centrifugal blowers are an inferior choice compared to the positive displacement blower
the installations I've driven felt like a standard car with a lot more top-end go
there non of the low down punch you get with a PD blower and that you tend to associate with a powerful road car
Just reading November's EVO magazine, and there is an article on the 911 Carrera, talking about the facelift model having a turbo, which is quite a big deal for Porsche, but they, like everyone, need better emissions, and mpg.
But it got me thinking about how the base model Porker, will now hit 0-60 in 3.9 secs, and reach 190mph. Pretty impressive figures, for a car that will rival the new TVR for price.
It could work out well for TVR, as the purists won't like the idea of turbo's, and a big, naturally aspirated V8, is becoming a rare beast.
But, the negative, is that these entry level Porches, are VERY quick!
Hopefully the performance of the new Trev will be closer to the 911 Turbo anyway!
But it got me thinking about how the base model Porker, will now hit 0-60 in 3.9 secs, and reach 190mph. Pretty impressive figures, for a car that will rival the new TVR for price.
It could work out well for TVR, as the purists won't like the idea of turbo's, and a big, naturally aspirated V8, is becoming a rare beast.
But, the negative, is that these entry level Porches, are VERY quick!
Hopefully the performance of the new Trev will be closer to the 911 Turbo anyway!
wanacoop said:
But it got me thinking about how the base model Porker, will now hit 0-60 in 3.9 secs, and reach 190mph. Pretty impressive figures, for a car that will rival the new TVR for price.
But the Sagaris exceeded this in 2005 (according to TVR), I can't imagine the new car being a step backwards 
Englishman said:
But the Sagaris exceeded this in 2005 (according to TVR), I can't imagine the new car being a step backwards
The importance difference was that TVR used to be about buying supercar performance for a fraction of the price, a 911 is NOT a supercar (sorry Porsche owners) - so hoping to meet mundane performance numbers of quick Porsche to me is not very aspirational. I had a 4.2 Cerbera 10+ years ago and it really did feel + compare very favourably to most other real exotica. The trouble is things have moved on so far - McLaren is soon to be selling at £120k car that will do 0-60 in 3 seconds. TVR with it's current selection of engine is not going to get anywhere near that kind of performance.
Indeed things have moved on, but my personal view is that the new TVR will be a 200mph car with 0-60 in 3.5secs which should be achievable with a car of 1100kg and a power unit of ~500bhp.
The Mclaren F1 was 50kg lighter with an engine delivering ~620bhp and achieved something like 225mph and a 0-60 of 3.2 secs (all IIRC), again some time ago now.
The Mclaren F1 was 50kg lighter with an engine delivering ~620bhp and achieved something like 225mph and a 0-60 of 3.2 secs (all IIRC), again some time ago now.
NickOrangeCars said:
The importance difference was that TVR used to be about buying supercar performance for a fraction of the price, a 911 is NOT a supercar (sorry Porsche owners) - so hoping to meet mundane performance numbers of quick Porsche to me is not very aspirational. I had a 4.2 Cerbera 10+ years ago and it really did feel + compare very favourably to most other real exotica.
The trouble is things have moved on so far - McLaren is soon to be selling at £120k car that will do 0-60 in 3 seconds. TVR with it's current selection of engine is not going to get anywhere near that kind of performance.
Surely if traction can be sorted and weight can be kept below low then sub 3 sec can actually be achieved.The trouble is things have moved on so far - McLaren is soon to be selling at £120k car that will do 0-60 in 3 seconds. TVR with it's current selection of engine is not going to get anywhere near that kind of performance.
Phil
B
PhilI thought about that too, power to weight good, TC aided hence reduction in power, manual gear change...I think they will do well to get it in the mid 3's
Transmitter Man said:
NickOrangeCars said:
The importance difference was that TVR used to be about buying supercar performance for a fraction of the price, a 911 is NOT a supercar (sorry Porsche owners) - so hoping to meet mundane performance numbers of quick Porsche to me is not very aspirational. I had a 4.2 Cerbera 10+ years ago and it really did feel + compare very favourably to most other real exotica.
The trouble is things have moved on so far - McLaren is soon to be selling at £120k car that will do 0-60 in 3 seconds. TVR with it's current selection of engine is not going to get anywhere near that kind of performance.
Surely if traction can be sorted and weight can be kept below low then sub 3 sec can actually be achieved.The trouble is things have moved on so far - McLaren is soon to be selling at £120k car that will do 0-60 in 3 seconds. TVR with it's current selection of engine is not going to get anywhere near that kind of performance.
Phil
Without the engine weight to help hold down the back wheels and with a manual gear change I think it'll struggle to get anything like the numbers being mooted above.
We can look at the last of the big performance analogue cars like the F1 or the 220 for inspiration but they did have a lot of weight over the rears and a lot of rubber.
The serious numbers that we see today and the reason these times have suddenly dropped in the last decade really has nothing to do with the cars being so much more powerful but to do with the fact that the inefficient human brain and human limb combo has been replaced by super fast, super efficient, super tuned computers and servos etc.
On these modern cars the computer determines every single aspect of the launch, takes instant myriad measurements of its surroundings and calculates optimum setting for every element of the car.
Seeing as TVR's figures of old were bullst on all fronts then I'm expecting to see true numbers for this car not much different.
But this car won't be out dragging 911's or Lambos etc at the lights. It's not going to be the bang for buck straight line out performer of 20 years ago. It will need to be sold on a slightly different tack. For me, that niche would appear to be someone similar to myself who simply doesn't want a Porsche, a Lambo, a Ferrari, an Aston or a Macca. We want something that is a little bit Dukes of Hazzard but wrapped in a classically English package. But we aren't old enough to consider Morgan or blind enough to pick an Evora.
I'm sure the majority of people will look at a £80-£100k TVR and ask why wouldn't you buy one of the more common, mass produced cars that announce your wealth with vulgar aplomb while doing everything for you but hopefully there will be enough people left in this country who want a car for themselves, want a less computerised driving experience etc.
The simple fact is that not everyone aspires to own any of the 'go to' 'just made some money' cars mentioned in this or any of the new Tiv threads. All I can hope for is that there are enough people to make this business a success.
We can look at the last of the big performance analogue cars like the F1 or the 220 for inspiration but they did have a lot of weight over the rears and a lot of rubber.
The serious numbers that we see today and the reason these times have suddenly dropped in the last decade really has nothing to do with the cars being so much more powerful but to do with the fact that the inefficient human brain and human limb combo has been replaced by super fast, super efficient, super tuned computers and servos etc.
On these modern cars the computer determines every single aspect of the launch, takes instant myriad measurements of its surroundings and calculates optimum setting for every element of the car.
Seeing as TVR's figures of old were bulls
t on all fronts then I'm expecting to see true numbers for this car not much different. But this car won't be out dragging 911's or Lambos etc at the lights. It's not going to be the bang for buck straight line out performer of 20 years ago. It will need to be sold on a slightly different tack. For me, that niche would appear to be someone similar to myself who simply doesn't want a Porsche, a Lambo, a Ferrari, an Aston or a Macca. We want something that is a little bit Dukes of Hazzard but wrapped in a classically English package. But we aren't old enough to consider Morgan or blind enough to pick an Evora
. I'm sure the majority of people will look at a £80-£100k TVR and ask why wouldn't you buy one of the more common, mass produced cars that announce your wealth with vulgar aplomb while doing everything for you but hopefully there will be enough people left in this country who want a car for themselves, want a less computerised driving experience etc.
The simple fact is that not everyone aspires to own any of the 'go to' 'just made some money' cars mentioned in this or any of the new Tiv threads. All I can hope for is that there are enough people to make this business a success.
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