Carlsworth

ok,...

taking the aerodynamics, weight, traffic, bends on motorway etc etc...


do you think my boss knows someone that has an evo that does 220 on uk motorway....





seriously though

what would it take to get an evo doing 220mph.....


how much road would it need?
what sort of power?
what sort of gearing?
how long it would take?
aerodynaic issues?


etc....




carl

Alps Pacino

Carlsworth

In the famouse words of Bruno "ish dont think so"

Carlsworth

Alps

i dont think so either,....but would be interesting to find out what would be needed to be successful...

and a few aerodynamics boffins on here could help with the issues there....



there is something i absolutely know for a fact,...my boss is amazingly gullible, and does not have any mate with a 220 evo..

Stavros

Does he know Simon Norris or the few others that have similar engines?

As theyd be not far off if they got the gearing for it.

Knowing Simon he's probably slyly done it already

Your average 4wd turbo car needs approx 650bhp to do 200mph from a standing start in 1.5miles (ie Fensport Corolla at Brunters).

IMO with an unlimited amount of room, ie motorway, considering you can get round even the tightest bit of motorway at 130mph, it needs to accelerate 90mph more in i dunno, 3miles+ of straight line?

Under 1000bhp if you had the gearing, no probs. And there a few at that sorta level in the UK.

IIRC Joes English did 216mph in 1.5miles from a standing start with a 900bhp Viper. Imagine twice the distance, and already starting at 130odd.

Alg1k

iTrader: (2)

well i supose its possible if its an import 220 kmh aint that fast

AndyBrew

erm no

the only people with any sort of Evo that would get anywhere near that would not be stupid enough to attempt it on UK motorway

is he sure it wasn't a Rover 220 just drivin on a UK motorway

Stavros

You dont know em that well then


ALSO if i remember right, Keith Cowie was doing 225mph within 3/4 of a mile from a standing start in his Skyline in 1000bhp spec, and they FAR from aerodynamic.

Imagine how quick n easy when he already doing 130mph

AndyBrew

220 mph

i stand corrected then, but they still must be stupid

ECU Monitor Enthusiast

iTrader: (1)

LOL, I bet its KMH not MPH.

A mate of mine in his old BMW said that his car did 0-100 in 10 seconds
which is fooking fast BUT I told him it was bullshit and he said that he
would prove it to me as it was printed in the owners manual.
Sure enough it was in KMH.

Carlsworth

standing start in his Skyline in 1000bhp spec, and they FAR from aerodynamic.


and evo s even less so

i know this is never going to be likely, and has never happened,

so, ill move goal posts...in a straight line, endless runway...



surely the areodynamics would play a massive part at that speed, also, stavros, im trying to get to the bare bones of why its near impossible, imo, in an evo at 220mph, not a skyline, or corolla, but appreciate the input




carl

i do not think it is possible

gingerturbo

iTrader: (2)

m20 on a sunday afternoon me and my m8 got 190mph out of a r33 skyline running 400bhp going townards dimchurch

gingerturbo

iTrader: (2)

its should be posible for an evo fq420 with a bit of tweeking to do over 200 with a mad enough driver down the m20

r_cossy

evo 8 165mph washington highway done it a few times

James998

The m20 is the codename for your private track, right?

Jim Galbally

you probably werent doing 190.

if we take into account the 10% bullshit factor, the speedo was probably reading 170-180

plus the 10% "the speedo doesnt work factor" gives you what, 160-170?


anyway, it's a HUGE leap to go from 190mph to 200mph! i seriously doubt a standard production evo could do it, even if it did have the gearing

vikingboy

anywhere near remotely standard evo @ 200mph - not a bloody chance.
Norris has done 201mph in two of his Evo's now but they were far from standard.

I also dont think many evo owners actually want to drive in a straight line @ 200mph - the fun with evo's is the slower 30-130 stuff on the good old English B roads.
if you gear it for the top end you loose the acceleration lower down, its all a trade off.

Stavros

Its blatantly possible with enough power and if its got the gearing for it. You need a MEGA car for it, but its a lot easier than some people think.

Norris has done 201 in 2 of his evos on a short runway, not a damn long motorway.

A 300ZX did 260mph in 1990 FFS with 1000bhp, im sure most cars with 1000bhp or maybe a good bit less actually 800maybe, can do 220 with the right gearing.

Your boss may be wildly wrong, but given a long motorway ill put money there a LOT more cars that can do 220 than you think.

Didnt Andy Forrest do over 210mph at Elvington last year at a random top speed day? Im SURE he did, and im 99% sure he didnt even have 800bhp, and thats in about 1.5miles from a standing start, not 3+miles from a 130mph roll on...

Ive done 197.6 in the Fensport Corolla at Brunters with about 650bhp, and it wasnt struggling, belive me, and thats not exactly aerodynamic or mega power.

stevieturbo

I think it was a little over 210....but I wouldnt take Andy's power quotes as gospel. I think he likes understating things.

Events like TOTB etc, do prove how difficult it is to achieve such speeds. People can dream about doing 200+, but it is an incredcibly difficult thing to achieve, especially within a shortish distance.

And why all the claims that none of the above cars are aerodynamic ? Im sure the manufacturers spent millions on design and computer or wind tunnel testing. Id guess that most of these modern high performance cars are pretty damn aerodynamic. They certainly arent old Volvos !! Now they arent aerodynamic.

Carlsworth

and substantially more to get 220mph




please can we get some real technical comments on here, same people giving it "my mates dads dog walker" did lightspeed in a mini,..."


its all bollox,....

is there any evo that has been recorded at 220...??????


carl

phil_focus

all this stuff about the right gearing is only half right. fact is that if you dont have enough power then the engine canNOT 'push' the car along through the exponencially increasing drag (air resistance) and theres rolling resistance on top of that too. basically you cant make a 60BHP Ka do 200mph with really long gears!!!!

200MPH is doable at sub 1000BHP but when you reach (roughly) 200mph the drag factor that has been increasing expenencially increases at an even greater rate. this means that you may need another 200BHP to reach 205mph

one of the most aerodynamic cars i know of are vauxhall calibras, they have one of the lowest drag coefficients, so it would be easier to reach 200mph in that with less power than in an evo. having said that i think the veyron must have an even lower drag coeficient but i dont know what it is.

back to the original point, it probably is 220 KPH

Carlsworth

there we go,...


i thought as much...


i remember reading on here, that the drag at 210mph is almost double than at 200mph...

is that about right.??



really interested in the drag factors when at these speeds, and comes back to my point that even if mitsi spent billions in a wind tunnel, they were not made for 200+ mph, so the drag coefficients would play a major factor at these speeds....


car;

phil_focus

tbh mate i dont know if it is double but it does sound sabout right.

i'm currentlyin my first year at uni an doin an automotive engineering with motorport degree course (BEng honors) and we covered this last semester. i'll see if i can find an equation.

phil_focus

EDITED: think its wrong so will post when i know its right

dojj

iTrader: (3)

so what does that al mean then?
can it do 220 or not?

where's rod with his already figuered out figures when you need him

phil_focus

soz, deleted what i put cos i put some figures in an came out with rediculously low power, gone wrong somewhere so need to lok back over a few things


it will do 220 if it has enough power

stevieturbo

Whilst not official, Andy's 210mph is the worlds fastest 4wd I think.

big_wig_074

what?other than the veyron?as thats a 4x4 IIRC!

stevieturbo

well....at the time Andy done it, the Veyron wasnt out there.

Is the Veyron permanent 4wd ?

big_wig_074

AFAIK yes it is.but then so was the bugatti eb110 and thats been around probably longer than andy forrests impreza full stop!!!! they did 217mph IIRC

Big Will_

RC Developments (retired) white Evo 6 pulled 199+mph in 1.25miles and went on to do multiple 200+mph runs.

However, thats 930bhp+ on race fuel and 750+ on pump gas running a hollinger gearbox...

Unless the gentleman in question owns one of maybe 3 or 4 evo's in the country capable of doing it - i'd take it with a pinch of salt

Carlsworth

that isnt the question here,....

I KNOW my boss is talking bollox,

THE QUESTION IS is it physically possible to get an evo at 220mph, given its aerodynamics etc,..

and if so, what i needed.....

Benni

Shouldn't you take into consideration how rough a motorway is compared to a runway like brunters?

big_wig_074

youll find a lot of motorways are a lot smoother than a lot of runways mate. usually due to what theyre made of.

MikeR

I think people might say Brunters is rough as a bears arse mate at least in places

mike

Benni

Impressive.You learn something new everyday.

big_wig_074

benni,its all due to the loads required,on a road you see the dips made by lorries etc in the inside lane?thats because in trying to make the surface as smooth and nice to drive on as possible theyve made it a bit too soft. whereas on a runway the important thing is to be able to land over 200 tonnes of plane at over a hundred miles an hour onto it,then for it to slowly taxi around to the bay without grooves appearing! so they use thicker harder materials like concrete for example.

stevieturbo

I would say yes it is. I dont see tham as having that poor aerodynamics.


All you would need is enough room, and enough power.

Ive seen brick like old US drag cars pulling 200+ in 1/4 of a mile. An Evo is far from a brick, so Im sure it could do 220 given an almost infinite motorway.

Thats if it didnt crash of course or blow up.

Chip

iTrader: (3)

Blatantly talking shit as if he really knew the guy he would have told you all about the car and what was done to it.

But as above, its perfectly possible to build an evo that would do it.

Benni

Thanks for explaining it mate.

RWD_cossie_wil

iTrader: (9)

the correct speed vs drag equasion is as speed doubles, drag quadrouples

so the drag at 100MPH is say 200 (just to put figures into it)
at 150MPH it would be 400
at 200 MPH it would be 800

Has to be said though, I am surprised that more development of a cars aero package isn't carried out for top speed cars, simple stuff like smooth undertrays, better engine bay air routing etc, huge improvements could be made for relativly low outlay.