LOL, the mechanical grip is different in different track,it is around 1.3g in hocken short,and 0.86g in figure 8.The figures I took were of CGT.
Your F1 car pulled 3g at 98kmph in videk you showed,so F1 cars have around 700kg at that speed.By the way nobody will actually experience 5g at 200mph because there are litrally no track which has that fast corner.
The bump causing sudden change in gs doesnt explain anything because the force is not included in lateral part,it is involved in upward direction.
By the way some of the group c cars had 10000lbs at 200mph,gt3 cars have around 1000kg at 125mph,so are you telling F1 cars produce lower downforce than them.
Ultima GTR 720 specs
Car type | Coupe |
Curb weight | 1050 kg (2315 lbs) |
Introduced | 2000 |
Origin country | United Kingdom |
Views | 296.2k |
Lap times
Track | Time |
---|---|
Top Gear Track | 1:12.80 |
Performance
0 - 100 kph | 2.6 s |
Est. 0 - 60 mph | 2.5 s |
0 - 100 mph | 5.5 s |
1/4 mile | 10.5 s @ 139.8 mph |
Top speed | 378 kph (235 mph) |
0 - 100 mph - 0 | 9.4 s |
Powertrain specs
Engine type | American Speed V8 |
Displacement | 6.4 l (391 ci) |
Power | 720 ps (710 bhp / 530 kw) |
Torque | 580 Nm (428 lb-ft) |
Power / liter | 112 ps (111 hp) |
Power / weight | 686 ps (676 bhp) / t |
Torque / weight | 552 Nm (407 lb-ft) / t |
Transmission | 5 |
Layout | middle engine, rear wheel drive |
GTR 720 competition
Good Gamer 9y ago
saxy 9y ago
Lol. You literally said that downforce has NOTHING to do with lateral grip. Do I need to quote you again?
What do you mean I didn't know the mechanics grip of a car. I didn't "assume" 1.00g mechanical grip. That is just a number most sports cars make.
Grip = Friction coefficient x (weight of car). You said the Mclaren F1 LM made so much downforce it would produce 4x it's weight in downforce at 200mph.
If mechanics grip was 1.0
1 X (1 +4) = 5g
If it were 0.9
0.9 X (1+4) = 4.5g
It doesn't matter. A road car can't pull 5gs it can't pull 4.5gs either.
Which is the whole point. Your Mclaren F1 LM does NOT make 4tons of downforce. F1 cars typically make only 2 tons of downforce at around 200mph.
Common sense tells me that a road car does not have twice the downforce of an Formula 1 car. But apparently no one can convince you so.
So of course I "lost" the argument in your eyes. I just gave up lol
BR2+ 9y ago
I dont even no who this is lol
But sir/mam please do some research as to WHY this laptime wasnt added....YEARS ago. Modified or not. And no it doesnt matter if it wasnt done by TG or not.
Also, Are you really serious about thinking this may have more downforce then an ACR?..........
Good gamer 9y ago
I said that your 5g had nothing to do with 5gs you told because you didn't even knew mechanical grip of the car in question.
Besides you lost that argument the moment you said you didn't care about ACR figures.
good gamer 9y ago
There's a reason why that time was never added and the current time is up there
If thats so,I would like to know the reason.As far as source goes the time is from a reliable source like evo and there is an onboard video with timer in the video link.
Even if the car is modified,the site allows to add modified laptimes as long as it is street legal.So I don't see the reason why it should not be added.Only reason I can think of is it was not done by TG officially,if thats the reason then Laferreri laptime also should be removed.
And no, This car doesn't have more downforce then n ACR
How do you know that?It is more than 5s faster than ACR at top gear track,any sources for figures or proof?(by downforce I mean Downforce to weight ratio).Also if you have specs for rear wing,Lift coefficient,etc we can calculate the figures.
good gamer 9y ago
Another car which may have more downforce than ACR.By the way fastestlap of Ultima GTR at top gear track is wrong,correct fastestlap is 1:09.9 and is completely road legal.
Refs
http://www.evo.co.uk/news/evonews/243778/ultima_claims_top_gear_lap_record.html
Video ref
http://www.4tuning.ro/masini-tari/ultima-gtr-720-ultimul-record-pe-pista-top-gear-4359.html
BR2+ 10y ago
Although Th Stig never drove it, And sadly never will. But its still extremely pleasing to see a car today that uses that good ole fashion formula of Power, Lightweight, And the Driver, Rather then having the cars technology keeping you at bay. But i do think the 918 can beat this, Or go just as fast, But ive no idea about the time, Ultima really should step up its game and go full blown like Pagani and Koenigsegg, Well without having the unnecessarily large price tags
BR2+ 10y ago
The models have upgraded suspension, brakes, tyres, suspension, gearing, chassis improvements, slight aero imorovements, at the time when these cars made headlines,500 model upto the 720 model everything was improved, it wasn't just engine power.
There's also vids on youtube of the cars doing the times and the times were also excepted by guiness for 0 to 60, 0 to 100, 0 to 100 to 0, 100 to 0, And 1/4 mile at the time as the fastest times at that period.
It may not have a fancy dct and launch control, but it has n incredible launch with awesome grip, big power and light weight, great driver helps too.
Dexterpa 10y ago
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loshmi 14y ago
1/4mile- 9.9 @ 143mph
.worldcarfans.com/10606236803/ultima-gtr-sets-new-world-record
loshmi 14y ago
0-100mph 5.3s
0-150mph 11.8s
.worldcarfans.com/1080709759/rain-stops-ultima-gtr-assault-on-ring-record
"It accelerates from 0 to 60mph in just 2.6 seconds, 0-to 100mph in 5.3 seconds and 0 to 150mph in 11.8 seconds, each of these figures have been verified by official Guinness book of world records timekeepers Datron Technology who use incorruptible GPS timing gear to record the official road car world record times."
Parsons 14y ago
At least this one looks like a real car and not an Indy car like the 1st place car. Much better looking.
remengo 14y ago
Yeah, street legal....and of course cheap, but for a reason: .wreckedexotics.com/ultima/ultimaGTR_20090421_002.shtml VS .motorauthority.com/news/1055607_pagani-zonda-driver-crashes-at-199-mph-lives
that's the price difference....life!!