View Full Version : Top Speed Run
Right, Im going to go for it, dont know where yet.
What speed to the aerodynamics matter more than the power do you think?
IIRC from the calculator its geared for 176mph?
I've done 163 GPS speed, and it was not struggling but a hell of a lot slower going from 160-163 than it was from 150-153 if you see what I mean?
There seemed to be a bit left in it, but u could feel the force of the wind...
napalm_27
17-03-10, 10:27 AM
what power is yours putting out paul..?
as il be practically running the same sort of set up but with the vxr engine and MS
dj_wudgey
17-03-10, 10:28 AM
go for it mate my nova has only had 120 on the speedo and wont have been doing that :( ha ha!
SR-Rally
17-03-10, 10:29 AM
My mates taking his ultima gtr 620 for top speed run soon, hoping to get 235mph lol
I believe its ~50mph where air resistance becomes more of an issue than road resistance (hence why they say over 50mph its more efficient to put air con on rather than open a window)
I remember reading it takes something stupid like 50hp more to get 5-10mph more top speed, something like that anyway, so power will always help lol
And a nova is never going to cut through the air like a Supercar, especially with the front end of yours being quite flat Paul, due to IC/big rad etc.
And i just LOL'd at you saying "Ive done 163"
Fcuking nutter!!! lol lol
basically to double your speed you need to cube your power... ie 4 times more.
my sig linky has a top speed via power calculator if you want a play. iirc the novas cD is something like 0.35 (Mr danker might know better)
nova gte, 100hp 120mph
astra 16v, 150hp, 140mph
sierra cosworth 200hp, 150mph
you'd need at least 200hp to break 160 in a nova, and a damn good run up.
to do 175, maybe 350 and some long gears...
for ultimate speed, its tape off the panel gaps, remove the mirrors, pump up the tyres & possibly even pack the rad with ice cubes
Mowgli, are those speeds quoted at the engine rev limiter or the TRUE Drag Vs power at the wheels limit.
napalm_27
17-03-10, 12:15 PM
whats the FD on a f28..?
whats the FD on a f28..?
3.72
That Brunters thing we did with TV a few years back should give you an idea...
Its torque that overcome wind resistance really - Chris S's had around 300-350 bhp and similar torque and he did a 164 on a 2 mile runway....
You will need a similar environment (ie long run off either side etc) otherwise you are signing your own death certificate if anything goes wrong...
Also tyre choice will play a significant role at those sortsof speeds...
General Baxter
17-03-10, 01:32 PM
how, after 80mph, you have to play a game called, whats going to vibrate/fall off lol
napalm_27
17-03-10, 01:38 PM
thats the fun of it tho baxter lol
you get an enlarged rear view mirror and play guessing games of what the actual bits that fall off are lol
oh oh oh yup there goes the indicator lol
Nova_Tek
17-03-10, 01:42 PM
Go for it mate, and get one of them ebay camera/camcorder thingies for £9 ;)
Best to get a tail wind rather than driving into a headwind, I'd imagine it'd be much easier to get top speed :)
dhdev (Oli)
17-03-10, 02:07 PM
basically to double your speed you need to cube your power... ie 4 times more.
my sig linky has a top speed via power calculator if you want a play. iirc the novas cD is something like 0.35 (Mr danker might know better)
0.35 is correct AFAIK.
Stuarts calculator is by far the easiest way to work out when drag will become a real problem. It obviously depends on how 'slippery' the car is, it's the point when the forces ''pulling you back'' are greater from the aero than from the rolling losses. Drag on a Nova is obviously going to become more of a problem sooner than drag on a Tigra for example.
There's no set magic mph number, it varies from car to car.
At the risk of flaming, I saw in excess of 150mph out of my 1.6. Verified by gear/revs calculations and an M3 hitting his speed limiter PMSL. Also agrees with Stuart's top speed calculator (Nova CofD 0.35, area 1.75m^2, wheel power 168bhp = top speed 156mph) Took miles to get there though!
Mine has 331 whp whats the top speed on that, from stuarts calc?
lmfao might take a while to get there though
Predicted Top Speed 195.75 MPH
ha ha i want realistically 175...
where can i do a top speed run?
M6 is 230 miles long :p toll barriers might make a dent in your top speed though, and your front end lol
Nova_Tek
17-03-10, 03:54 PM
ha ha i want realistically 175...
where can i do a top speed run?
In a field? lol
Only place, you can do it realisticly is probably on an airstrip. Go down to Top Gear ;)
matt_vaughan
17-03-10, 04:01 PM
Air strip might not be long enough, TG struggles to get 180-190 from slippery supercars on their runway usually, or so they say on the telly.
Is Brunters long enough? I know people have done top speed runs there before.
if it can corner well enough you want an oval really, not sure of one in the UK though, apart from DVLA (or similar body/authority type thing?) testing thing
Air strip might not be long enough, TG struggles to get 180-190 from slippery supercars on their runway usually, or so they say on the telly.
Is Brunters long enough? I know people have done top speed runs there before.
The top gear one isn't that long, they struggled to land that Jumbo there.
edit, looking on google maps the bit top gear use is about 1.5 miles
if it can corner well enough you want an oval really, not sure of one in the UK though, apart from DVLA (or similar body/authority type thing?) testing thing
you mean MIRA
dhdev (Oli)
17-03-10, 04:10 PM
Without paying hundreds for access to a test track such as Milbrook's bowl, you're gonna have to use a desserted piece of ''Autobahn'' late at night, just make sure you recce it first to make sure there are no truck tyres lol
dhdev (Oli)
17-03-10, 04:11 PM
you mean MIRA
Wouldn't stand a chance at MIRA the banked corners are too tight. Track regs limit testing at 120mph unless exclusive use is booked, even then it is not advised above 120mph.
theres kids trying this in lowered rover metros all the time on the a47 near hinckley.....
seriously, why not make a trip to the fatherland & legally thrash up an autobahn..
ps. what tyres are you using??
Nova_Tek
17-03-10, 04:25 PM
I agree with Mowgli. Do it legal, do it in Deutschland. Good point regarding tyres also. You'll need at least W rating tyres if you're gonna do 165mph+
dhdev (Oli)
17-03-10, 04:36 PM
Also one thing to note is that even slight bends in the road can become a major issue when the back end is getting light at 140mph+ You'll want a seriously straight, crosswind free bit of road/track
A6
M54 J4+
M5 J7+
Thats where I go lol
A6
M54 J4+
M5 J7+
Thats where I go lol
note to self.....remember to avoid these roads from now on
seriously I once got a nova airborne at around 120mph (full bore in top, gte) and i was somewhat cacking it...
175 mph... anyone old enough to remember the 6 million dollar man tv show will be thinking the same as me.............. http://www.youtube.com/watch?v=HofoK_QQxGc
djbrowney
17-03-10, 05:10 PM
i hope you still wonna do this next year because i hoping to have a fooking good go at the 182 mph that danny holds lol
i hope you still wonna do this next year because i hoping to have a fooking good go at the 182 mph that danny holds lol
1.2 with a digi dash perhaps????
50 quid says it will blow up:p , and ill tow you home with my 50quid fiesta!:thumb: , my mates tuned up rs focus did 155 and melted all four pistons like an ice cream, was set up well lol lol lol
ive seen 170 out of a cally t. on a gps. scary stuff
ive seen 170 out of a cally t. on a gps. scary stuffthey are much more aerodynamic though
Anything over 150 on a public road (including Autobahns) and I'd be worried about debris, road quality or other interferences causing problems.
Its going to be difficult in a car which has the aerodynamics of a block of flats,but may the force be with you......
Anything over 150 on a public road (including Autobahns) and I'd be worried about debris, road quality or other interferences causing problems.
And that would be in a car thats built for speed... Imagine it driving a packet of crisps and you will get the idea of the safety rating! lol
dhdev (Oli)
17-03-10, 06:44 PM
And that would be in a car thats built for speed... Imagine it driving a packet of crisps and you will get the idea of the safety rating! lol
Meh safety schmafety lol
Allegedly Filton airport in Bristol has one of the longest runways in the UK as they built some stupidly big warplane eons ago and was one of the only places it could land, its about a mile from my house and i can get you in the back entrance, just have to avoid the 747's.
On slightly more serious note cant brunters be booked?
Brunters isnt that long for big boy speeds with small engines lol
iirc Filtons runway was hacked short by BAE ?
Joe Richardson
17-03-10, 07:15 PM
bruntingthrope is a known one,lad in a sierra cosworth did 201 mph there couple of years ago :thumb:
get it down there paul :)
dhdev (Oli)
17-03-10, 07:28 PM
lad in a sierra cosworth did 201 mph there couple of years ago
PMSL you make it sound like he stopped there on the way back from maccies lol
The surface at brunters lets it down imho. Anywhere thats all tarmac?
iirc Filtons runway was hacked short by BAE ?
Quite possible.
What was the name of the big plane mind has gone blank!
Pointy supersonic beasty... white. killed some germans lol
Ha ha apart from the A130 where can i go for it?
get air on the Dartford Xing ?
bruntingthrope is a known one,lad in a sierra cosworth did 201 mph there couple of years ago :thumb:
Has since hit 208 if my memory serves me right.
Also an Escos done the world record Caravan tow there, 160 odd mph with a carvan on tow lol
Has since hit 208 if my memory serves me right.
Also an Escos done the world record Caravan tow there, 160 odd mph with a carvan on tow lol
And a Calibra 4x4 was some sort of caravan mags tow car of the year, I think it needs to reclaim it's title! lol
And a Calibra 4x4 was some sort of caravan mags tow car of the year, I think it needs to reclaim it's title! lol
A barge towing a shed....dont see that everyday lol
bruntingthrope is a known one,lad in a sierra cosworth did 201 mph there couple of years ago :thumb:
get it down there paul :)
it had about 800hp too
it had about 800hp too
Ive got the Performance Ford mag with it in somewhere, the guy sold a mint S2 RST for £4k just to pay for engine management :wtf: Rod Tarry his name is.
www.fastestcosworth.com (http://www.fastestcosworth.com) :thumb:
Ha ha apart from the A130 where can i go for it?
is that the road where essex police had a ford rs200 up a tarmac ramp to catch boy racers??? the rs would hit the a road at about 120....
is that the road where essex police had a ford rs200 up a tarmac ramp to catch boy racers??? the rs would hit the a road at about 120....
Holy sh1t i wanna go on that! (the ramp that is - wouldnt mind the RS tho)
http://farm4.static.flickr.com/3081/2575785553_be141d57cb.jpg
looks like a publicity stunt though
nah that part of the a130 wasnt built back then...
looks a bit like the A127.
Although looks even more like Fords test track with an added road sign lol
if you do it on the a130 watch out for the chopper that videos bikers and other nutters etc, and ill bring a broom to sweep up the remains when it blows up, or , could i be the passanger??? sounds good:d
looks a bit like the A120.
Although looks even more like Fords test track with an added road sign lol
Can't say I've noticed gravel run off areas on our motorways before? lol
Can't say I've noticed gravel run off areas on our motorways before? lol
well, you've simply not noticed them then....
well, you've simply not noticed them then....
Entirely possible :p
i've driven most of the motorway network & a helluva lot of a roads at a maximum of 56mph, you get to notice loads of stuff that a car driver doesn't
I drive them asleep and hope I wake up at my junction lol
I really don't pay attention to the surroundings on the motorway tbh, watching out for eejits and middle lane hogs takes up most of the time, and the views are generally pretty dull :p
The newer section of the A120 is fine for going fast, until you hit a bump or a bit of dodgy road (Fairly large bump where rayne is on the way to braintree from dunmow/stansted), or one of the cops in there volvos in the laybys.
Good luck if you find somwhere to do a legal top speed run. Would be preety cool.
imho the new A120 stretch is far too bumpy to do at 70 let alone anything above that.
See if BAA will let you play at stansted lol
MattBrown
17-03-10, 10:13 PM
The newer section of the A120 is fine for going fast, until you hit a bump or a bit of dodgy road (Fairly large bump where rayne is on the way to braintree from dunmow/stansted), or one of the cops in there volvos in the laybys.
Good luck if you find somwhere to do a legal top speed run. Would be preety cool.
Seriously doubt they could pull out, and chase you to 170mph!
Also, anpr doesnt work over about 100
So keep your foot in and your good
That bloke on a hayabusa outran the chopper the other week, however his balls are the size of my headlol
the A120 is an awesome bit of road
new A10 is better ;)whats that road near yours that is ****ed!! ive never seen so many pot holes. i hit one proper hard in the poor estate
whats that road near yours that is ****ed!! ive never seen so many pot holes. i hit one proper hard in the poor estate
erm all of them lol.
The only smooth bit of road in the area is the New A10 (and its not that new, its atleast 6 years old now lol)
i think its just as you come off the m11. i was all over the road, this time it wasnt from being pissed lol
At the risk of flaming, I saw in excess of 150mph out of my 1.6. Verified by gear/revs calculations and an M3 hitting his speed limiter PMSL. Also agrees with Stuart's top speed calculator (Nova CofD 0.35, area 1.75m^2, wheel power 168bhp = top speed 156mph) Took miles to get there though!
What gearbox where you using?
the a13's a good runner for top speed runs...
isnt it pretty much like a bombsite from basildon to the M25 though?
dhdev (Oli)
17-03-10, 11:45 PM
What gearbox where you using?
F13/5CR with 3.74 FD and 195/50 15's. I know on one occasion I reached 7600rpm in 5th, dunno about other runs cos it's not advisable to take your eyes off the road!
novacabrio
18-03-10, 12:01 AM
That Brunters thing we did with TV a few years back should give you an idea...
Its torque that overcome wind resistance really - Chris S's had around 300-350 bhp and similar torque and he did a 164 on a 2 mile runway....
You will need a similar environment (ie long run off either side etc) otherwise you are signing your own death certificate if anything goes wrong...
Also tyre choice will play a significant role at those sortsof speeds...
Also showed that the differnce in tyre sizes made, Rich had 15s (159.8 or something he got, he didnt quite make 160!) and Chris (as above about 164)had 16s, both hit the limiter I think and both running f28s.
It was however from a standing start so if you had a higher limiter and the right tyre size higher speeds could be possible.
You may be worth trying to get into Milbrook, they do have some public events on and do the odd event with the Aston Martin club, they have a 2 mile banked circular banked track (stick MK45 2JQ into google maps). No chance of getting in but worth a try lol
Also Elvington on the outskirts of York has one of the longest runways in the Uk and is listed as an emergency landing place for the space shuttle due to its length. They always have events on there.
ste porter
18-03-10, 02:02 AM
before i striped the turbo down to convert it to 4x4 i managed 163 fairly easily digi dash claimed 170 something but the snooper goes mad and spits its dummy out a 163 lol all be it the first time i did it it spat a rod and second time i pushed a little harder and a little longer and melted the seals in the turbo
having an eight and a half grand rev limit helps aswell lol
well to nacker something any way
when its back on the road and im fully happy with the 4x4 im going to go pod and run it flat out the full length of the strip
if i could hit 120 from a standing start with a slipping clutch 10psi and surposed to be beeing run in whats it going to do with 2 bar 4x4 launch control and a turbo bigger than my kettle and keeping flat out after i have crossed the line for aslong as is safe to keep planted
digi dash claimed 170 something
I always thought digi dashs topped out in the 150's?
And Stu. was the Bristol Brabazon i was thinking off! I know what a concorde is there is one parked at the end of my road!
http://i6.photobucket.com/albums/y228/lurk75/home.jpg
Also showed that the differnce in tyre sizes made, Rich had 15s (159.8 or something he got, he didnt quite make 160!) and Chris (as above about 164)had 16s, both hit the limiter I think and both running f28s.
It was however from a standing start so if you had a higher limiter and the right tyre size higher speeds could be possible.
You may be worth trying to get into Milbrook, they do have some public events on and do the odd event with the Aston Martin club, they have a 2 mile banked circular banked track (stick MK45 2JQ into google maps). No chance of getting in but worth a try lol
Also Elvington on the outskirts of York has one of the longest runways in the Uk and is listed as an emergency landing place for the space shuttle due to its length. They always have events on there.
I didnt think they hit the limiter? With the phase chips etc, the limiter is 7750 too, so I would expect more than 164 ish...
But deffo agree on wheel size - I would say 17s are best, but obv not ideal on a Nova!
spanishfly
18-03-10, 08:53 AM
Yeah I didn't think Chris hit the limiter. IIRC I got ~140mph in the nova on brunters, and TBH I don't think I would do it again. The road surface is awful. Really bumpy etc!
On a real autobahn, in the Astra Coupe I've had silly speeds. Don't think I would go over 160mph again on any road. The white lines turn constant, anyone changes lanes your bum hole spasms. If someone were to mis judge your speed and pull out in to your lane half a mile away, it would be hard to stop.
spanishfly
18-03-10, 08:57 AM
Oh and at the expense of people not believing me.
At the revs I was in 5th this is Stuarts outcome:
Speed @ Limit 1st 38.08 Mph Speed @ Limit 2nd 67.37 Mph
Speed @ Limit 3rd 101.05 Mph
Speed @ Limit 4th 139.44 Mph
Speed @ Limit 5th 172.4 Mph
My road angel said 172mph. Remember this was in Germany!
spanishfly
18-03-10, 08:59 AM
I don't think the was much left in the car, I had another 900rpm, however I doubt it would pull the limiter in 5th with 20miles. The Astra Coupe is alot more aero than a Nova.
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