topgeardude
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Have you heard of these cars.The first two use sportsbike engines and look like downsized LMP racers for the street,and i'm sure you know the Atom,the car the rearranged Jeremy Clarkson's face on Top Gear.
Westfield XTR2/Radical XR3/Ariel Atom 2
- Thread starter topgeardude
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I've heard of all three, and have seen the episode of TG where Jeremy has destroyed his face.
What's the point of this thread though?
What's the point of this thread though?
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topgeardude
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My bad i messed up on the Radical,and this thread is to talk about them,post pics,and post videos.
So there
So there
Scaff
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My bad i messed up on the Radical,and this thread is to talk about them,post pics,and post videos.
So there
Which is what you could have done in starting this thread off.
http://www.radicalextremesportscars.com/
http://www.westfield-sportscars.co.uk/
The Atom (great car that it is) is not really in the same league as XTR2 or the XR3, and even the XR3 is a bit old now in the Radical range.
I've passengered in both the Westfield and the Radical, both mind blowing, but the Radical would get the nod for me.
The radical website also hold details of the Nurburgring road car record they set with the SR8 and details of the company in the UK and US.
http://www.radicalextremesportscars.com/news_folder/nord0905/index.php
Those who follow prototype racing in the USA may also have seen Radical competing in the IMSA Lites series, most recently with the series specific ProSport PR06.
Regards
Scaff
BTW - @topgeardude That's should give you an idea of how to kick off a thread, so I hope you will take it on board and we will now see an end to these one-line thread starts and the pointless spamming of threads overall.
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I think you messed up the thread title. It's supposed to be Radical SR3, or maybe SR8, but XR3 gives no results on google images.
Scaff
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I shall not take it back good sir!
The Atom is indeed a fine steed of superb on-road pedegree, and its raw acceleration is stunning.
However on a track and compared to the Radicals it unfortunately a out of its depth, the aero package on the Radicals is full functional and generates a significant level of downforce and all the advantages that go with it.
On a b-road an Atom would murder a Radical, but on a track the opposite would most certainly be the case. They are very different breeds indeed.
Scaff
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As does the Atom 2's optional aero package, developed to allow the Atom to go production car racing...
Plus the Radical SR3 (500kg, 252hp) is heavier and not as powerful as the Atom 2 (465kg, 300hp), never mind the twincharged 450hp variant... The Westfield XTR2 is lighter (440kg) but far less powerful (180ish hp).
Radical SR3 - 504hp/tonne
Westfield XTR2 - 409hp/tonne
Ariel Atom 2 300 - 645hp/tonne
Ariel Atom 2 Twincharged - 968hp/tonne
The Atom has a wider track (1600mm, Westie 1448/1422, no data I can find on the SR3) too, "suggesting" more stable cornering. Plus the car-engined, FI Atom would have much more torque, much sooner than the bike-engined Radical/Westie.
On a b-road an Atom would murder a Radical, but on a track the opposite would most certainly be the case. They are very different breeds indeed.
Scaff
Dunno. I'd love to see them head to head though...
Scaff
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Ah but the SR3 is old now, very old.
You would need to look at the current generation of Radical's to be fair, such as the SR8.
600kilos
363bhp
= 605bhp per tonne
Width 1,800mm so on par with the Atom it terms of track width, also nice as the Atoms aero kit is, you know full well that its not a full aero package. I don't have lat-g figures for the Atom, but the SR8 did pull 3g on a number of corners on its record breaking run around the 'ring, and that was on 'road' legal tyres.
The ground clearance on the SR8 is silly however, hence my money being on the Atom on a B-road, but on the Radical on a track. Still b e fun seeing which was the quickest.
I have some Atom vs Radical lap times from an Evo test at Angelsey last year I will have to see if I can dig them out, but I do know the Radical hammered every thing.
Regards
Scaff
You would need to look at the current generation of Radical's to be fair, such as the SR8.
600kilos
363bhp
= 605bhp per tonne
Width 1,800mm so on par with the Atom it terms of track width, also nice as the Atoms aero kit is, you know full well that its not a full aero package. I don't have lat-g figures for the Atom, but the SR8 did pull 3g on a number of corners on its record breaking run around the 'ring, and that was on 'road' legal tyres.
The ground clearance on the SR8 is silly however, hence my money being on the Atom on a B-road, but on the Radical on a track. Still b e fun seeing which was the quickest.
I have some Atom vs Radical lap times from an Evo test at Angelsey last year I will have to see if I can dig them out, but I do know the Radical hammered every thing.
Regards
Scaff
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They do, and they're made and sold by Brammo Motorsports.
Scaff
3g? Ouch.
The Atom's aero package was developed so it could run in a mysterious series called "The Gold Arts100 Endurance Race Series" (about which I can find no other information than the fact the Atom 2 ran in it). That would lead me to suspect that it is the full deal.
Scaff
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Not sure I would class the aero packages as the same. While the Atom is running in that guise with a front and rear wing and I'm sure they reduce lift significantly , maybe even generating overall downforce. Overall the Atom is going to suffer in this regard in that its running open wheels and the bodywork is still quite open, and the resulting drag is going to be an issue.
The Radical on the other hand is generating significant downforce and is an aerodynamically proved car, 3g of lat acceleration is pretty much testament to the aero grip the cars generating.
Regards
Scaff
BTW - Keep in mind I do love the Atom in a huge way, I just think they are very different to the Radical's, haveing more in common with Caterhams, etc.
ND4SPD
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Anyone here about the V8 Ariel Atom? I was reading about it on another forum and can no longer find the link, it was a small, light, low displacement V8 possibly two hyabusa engines I'm not too sure. I'll look for it again and hopefully I'll find it.
Here's the link, http://www.dpcars.net/atom/index.htm . Its a 2.8l V8 making 375hp and 210lb ft. of torque. Apparently this V8 is 100lbs lighter than the ecotec engine that came in his original Ariel. This thing will be a beast when done. Any ideas on what engine that is? Sounds like two 1.4L Kawasaki Ninja ZX-14 engine's welded together at a V angle.
Here's the link, http://www.dpcars.net/atom/index.htm . Its a 2.8l V8 making 375hp and 210lb ft. of torque. Apparently this V8 is 100lbs lighter than the ecotec engine that came in his original Ariel. This thing will be a beast when done. Any ideas on what engine that is? Sounds like two 1.4L Kawasaki Ninja ZX-14 engine's welded together at a V angle.
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You said it's not road legal in the US. Except the Brammo one is.
Yes! I rule. Kneel before me. I have befuddled the almighty Famine.
I have just noticed it's got the optional road pack on it though...
Scaff
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skoda octavia vrs can do it in 49seconds
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You can run the Radical on American roads, but it has to have operating lights all around, including signals and such. A few folks ran them in Car and Driver's One Lap of America a while back, and they did pretty well.
On the Atom for a moment, the American version uses the GM LSJ Supercharged 2.0L I4 from the Cobalt SS and Saturn Ion.
Ariel USA
The engine can be ordered in three levels:
- "Standard" 230 BHP version
- "Better" 245 BHP version
- "Awesome" 300 BHP version
Thus far, performance has been stellar, and numbers are pretty much identical to that of those with the K-series Honda. But if you really, really, really wanted one, you could presumably build an Atom for yourself and stick one in there.
