Discussion
Bruntingthorpe is too short really which means its more of an acceleration run. I don't think there's anything particularly special about 200 MPH and quite a few of the modern performance cars will crack that with a good driver at the helm without breaking too much of a sweat.
Top Gear and the like seem to make a meal of it; I assume to portray a slightly more responsible attitude.
Top Gear and the like seem to make a meal of it; I assume to portray a slightly more responsible attitude.
I had a plan to get to the magic 200mph on 4 wherls a few years ago. My plan was to get a BMW 850csi, these were rock bottom prices at the time(wish I'd bought one now)and strap a couple of mahoosive turbos on it. They will pull around 175mph standard so I reckon you'd be there or there abouts for under £5k.
anonymous said:
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I agree with you, and runoff isn't all you need.If you chuck a given car out the back door of an aeroplane, if will do something like 120mph as it tumbles to the ground.
(This is an example of what happened at Skydive AZ when they tried it - http://www.youtube.com/watch?v=GMxXHY1f8Xk ). Yes, it's just an example, and the car in question had the engine removed, but just for talking sake, lets say that the terminal velocity of an average car is about that.
If you consider the forces with the same car driving along on the ground at 200mph, I think it's much more englightening. You're in a regime where the dominant force is aerodynamics, and the forces involved can toss the car about like it's made of paper, if something goes wrong.
(example on salt: http://www.youtube.com/watch?v=CNYIjG3se3I ).
(example on runway: http://www.youtube.com/watch?v=-0oJ2wQiu2Y ).
I'd like to point out I'm not against the idea at all. Just know what you're getting yourself in for.
C
Watchman said:
I've been looking into this for a while too. To do 200mph at Bruntingthorpe you need serious power - around 700bhp if I recall. There's just not enough room for the speed build-up with anything less.
Autobahn is dangerous at those speeds in anything less than a top-end modern machine, and you've no guarantee you'll get enough of a break in the traffic anyway.
I had hoped to do it in a ~450bhp Cerbera with a gearing (diff) change but I would need a very long run at it. In fact, probably the only place possible would be on the Autobahn but a Cerb is hardly the last word in modern sophistication so it concerned me that I would be sailing close to the (safety) wind with that.
Perhaps a supercharged Monaro?
Watchman - I agree with your observations. Autobahn is dangerous at those speeds in anything less than a top-end modern machine, and you've no guarantee you'll get enough of a break in the traffic anyway.
I had hoped to do it in a ~450bhp Cerbera with a gearing (diff) change but I would need a very long run at it. In fact, probably the only place possible would be on the Autobahn but a Cerb is hardly the last word in modern sophistication so it concerned me that I would be sailing close to the (safety) wind with that.
Perhaps a supercharged Monaro?
Its not until you start to look carefully at what's required that you realise what a challenge it is.
I certainly don't want to do it on a bike or on the autobahn.
Bruntingthorpe is probably the best bet (in the UK) but i haven't looked into whether its possible to use.
Watchman said:
I had hoped to do it in a ~450bhp Cerbera with a gearing (diff) change but I would need a very long run at it. In fact, probably the only place possible would be on the Autobahn but a Cerb is hardly the last word in modern sophistication so it concerned me that I would be sailing close to the (safety) wind with that.
Would be nice to know if they can actually do it!!My Cerbera pulled 415BHP on the dyno on a cold November day after Austec breathed on it.
Gearing in 5th is 200 at 8000rpm, and max power on mine was at 7983rpm.
Best I ever pulled was from a standing start at Dunsfold Wings and Wheels.
Had my son-in-law (18 Stone) in with me and she pulled 158 on the clock at the 1km mark where I lifted.
Sat-nav said 153mph, and stopping was "Interesting"!!
Met one owner who was/is supercharging his Cerb and aiming for 500bhp.
100 IAN said:
Watchman - I agree with your observations.
Its not until you start to look carefully at what's required that you realise what a challenge it is.
I certainly don't want to do it on a bike or on the autobahn.
Bruntingthorpe is probably the best bet (in the UK) but i haven't looked into whether its possible to use.
I didn't get near 200 at Brunters (and I had it to myself for 6 hours). You need a much longer straight or silly BHP. From memory I got to about 175 ish before chucking out BIG anchors. (911 Turbo with the £12k X50 power hike). As I say, 200 is no big deal. Cornering at 60 is much more exciting!Its not until you start to look carefully at what's required that you realise what a challenge it is.
I certainly don't want to do it on a bike or on the autobahn.
Bruntingthorpe is probably the best bet (in the UK) but i haven't looked into whether its possible to use.
VPower said:
Watchman said:
I had hoped to do it in a ~450bhp Cerbera with a gearing (diff) change but I would need a very long run at it. In fact, probably the only place possible would be on the Autobahn but a Cerb is hardly the last word in modern sophistication so it concerned me that I would be sailing close to the (safety) wind with that.
Would be nice to know if they can actually do it!!My Cerbera pulled 415BHP on the dyno on a cold November day after Austec breathed on it.
Gearing in 5th is 200 at 8000rpm, and max power on mine was at 7983rpm.
Best I ever pulled was from a standing start at Dunsfold Wings and Wheels.
Had my son-in-law (18 Stone) in with me and she pulled 158 on the clock at the 1km mark where I lifted.
Sat-nav said 153mph, and stopping was "Interesting"!!
Met one owner who was/is supercharging his Cerb and aiming for 500bhp.
They're supposed to be geared for 192mph. Given the revs I was at in 5th at the time, that seems reasonable. I think 410bhp would support a slightly longer final drive but it would take longer to get there so I reckon a diff change (I haven't checked to see what ratios are possible with the Hydratrac diff) to a slightly higher final drive and 450bhp (possible with some headwork and some confidence for a slightly raised rev limit) would see you top 200mph.
I didn't check my 185mph against a GPS but I did at lower speeds and it only overread by a smidge (about 104mph on the speedo at 100 on the GPS).
That all said - they're not the last word in sophistication, and Monaros are *so* cheap to buy with such a mahoosively bigger engine. I reckon they're a better bet at a 200mph run quite honestly.
100 IAN said:
Bruntingthorpe is probably the best bet (in the UK) but i haven't looked into whether its possible to use.
If you read the results from the last couple of VMAX events (are those the ones set-up by the Cerbera guys?) then you can see that to achieve 200mph at Brunters will require an awful lot of power.Watchman said:
100 IAN said:
Bruntingthorpe is probably the best bet (in the UK) but i haven't looked into whether its possible to use.
If you read the results from the last couple of VMAX events (are those the ones set-up by the Cerbera guys?) then you can see that to achieve 200mph at Brunters will require an awful lot of power.£18K will get you a Hyabusa turbo built by Holeshot racing that's done 242mph.
Advert:
Dave Freeman's 600hp turbo hayabusa is for sale: Our Stage 5 turbo kit up to 600hp, as with all Dave's toys, this bike is to the highest holeshot racing spec. Motec electronics on both bikes, Ohlins front and rear on both, AP brakes on both, Radial brakes and full superbike spec ohlins forks, PVM wheels, etc, etc, etc. Offers in region of £18,000. For further specs contact us. This bike will not be broken for spares, they need to be used in the way Dave intended - big horsepower, big speeds. I personally have ran 242mph on this bike, with more to go.
http://www.holeshot-racing.co.uk/index.php?page=Bi...
They have all sorts of mad available.
Advert:
Dave Freeman's 600hp turbo hayabusa is for sale: Our Stage 5 turbo kit up to 600hp, as with all Dave's toys, this bike is to the highest holeshot racing spec. Motec electronics on both bikes, Ohlins front and rear on both, AP brakes on both, Radial brakes and full superbike spec ohlins forks, PVM wheels, etc, etc, etc. Offers in region of £18,000. For further specs contact us. This bike will not be broken for spares, they need to be used in the way Dave intended - big horsepower, big speeds. I personally have ran 242mph on this bike, with more to go.
http://www.holeshot-racing.co.uk/index.php?page=Bi...
They have all sorts of mad available.
200mph is serious. My old GSXR 7/11 Turbo drag bike had 385bhp at the wheel and with the right gearing and aero package was clocked at 217.4mph with my jocky of a mate riding the old girl. I only managed 206.7mph because I'm a foot taller and four stone heavier.
The wind resistance at that kind of speed is ridiculous. You get to your top speed, pass the marker and slow to at least 140-150mph before you even think about moving at all. One guy let go to change his grip and broke every bone in his hand and wrist.
If you're going to try it, I'd reccomend you buy/build a fast car and get some decent life cover.
Best of luck.
The wind resistance at that kind of speed is ridiculous. You get to your top speed, pass the marker and slow to at least 140-150mph before you even think about moving at all. One guy let go to change his grip and broke every bone in his hand and wrist.
If you're going to try it, I'd reccomend you buy/build a fast car and get some decent life cover.
Best of luck.
what sort of budget you looking to spend thousands or tens of thousands? Skyline or Ultima should do th
e job as for a venue thats the hard bit in my opinion Elvington and Brunters but you will need big bhp to overcome the relative short distance you have to start and stop. If there is anyway of going to mira's oval then thats perfect but chances of a "bloke off the street" getting the nod on there are slim. Autobahn yes its possible but even on early morning runs things are still a bit hairy with traffic etc depends on how much your willing to risk? Just my twopeneth.
e job as for a venue thats the hard bit in my opinion Elvington and Brunters but you will need big bhp to overcome the relative short distance you have to start and stop. If there is anyway of going to mira's oval then thats perfect but chances of a "bloke off the street" getting the nod on there are slim. Autobahn yes its possible but even on early morning runs things are still a bit hairy with traffic etc depends on how much your willing to risk? Just my twopeneth.
Jam Spavlin said:
If there is anyway of going to mira's oval then thats perfect but chances of a "bloke off the street" getting the nod on there are slim.
Agree on that, but if you don't ask, etc. OTOH what if it were a "Pistonheads Challenge - 200mph for £5k" challenge? Car manufacturers quote BHP per ton, how about winning MPH per quid? Gassing Station | General Gassing | Top of Page | What's New | My Stuff