motor

jenkF1 · 08-04-2005, 02:29 PM

The Veryone my have broken the Maccas record, but to me it looks hideos and even with all the latest aero tweaks it looks like it handles like a bus.

LotusGT1 · 08-05-2005, 03:52 AM

Originally Posted by RC45

Actually it's not the kmh per se... but rather the extra time.

The car probably requires another 20 or 30 seconds at full throttle tp get the extra speed - and while they cover 2 or 3 more miles, this extra time at 110% throttle probably raises the oil temp to just coller than the surfcae of the sun, and the tyres lose 2mm of tread and begin to cook from the inside out.

All in all it is an outdated heap of crap before it is even launched.

In 1988 Reeves Callaway built a car, then John Lingenfelter (if my memory is correct) drove it to 255mph (410kmh)

No special setup or routine or palava... just get in, turn the key and mash the gas pedal.

They then turned around and sold it, as is, no warranty, to a German doctor as a street legal car.

The point? In 1988 tech terms it was easy to do - an independant tuner could do it.

What seems to be the problem holding up VW/Audi from pulling it off almost 20 years later?

Same point, different approach.
At those speeds an extra kmh costs a massive amount of more power/torque. Besides the massive amount of strain it puts on every part of the car, the frontal drag multiplies when going faster and faster. This takes an exponential amount of power to get faster...

The Vette you talked about was a purpose built topspeed (typical gearing, aerodynamics) machine with 880Hp -> Callaway Sledgehammer

From what I've read it was unable to function as a daily driver.

Nontheless it's fairly pathetic the record of the McLaren F1 did stand for 12 years. It's pathetic when Lingenfelter twin turbo Corvette's easily going towards 400 kmh. It's insane when a 1800kg four door saloon like the E60 M5 could go 320 kmh without limiters. The Veyron really is an aerodynamic drama....

I have to agree, the Veyron is a fucking farce from the day the development started. To think that was last century

bmagni · 08-05-2005, 05:10 AM

Originally Posted by LotusGT1

Nontheless it's fairly pathetic the record of the McLaren F1 did stand for 12 years

Its not pathetic, it moslty demonstrates the lack of interest from the main car manufacturers, and most of them to produce a car that can break the F1's record. As brembo says in the late 30's there were f1 audis that did more than 400 km/h, and dont you think if Ferrari, Porsche, BMW, MB, GM, etc, could make a car go 392 km/h in the past 12 years ???
So, who breaks the record ?? a not so known swedish car builder named Koenigsegg. Why ?? cause for them is a great publicity to do this kind of stuff, they have to do some marketing. I dont think theyve got better engineers than all the manufacturers i mentioned.

LotusGT1 · 08-05-2005, 07:53 AM

Koenigsegg hasn't proven shit on record so far, only paper claims. And about the Veyron, yes it is a pathetic attempt since the car is damn unstable at high speeds. The basic aerodynamics of that car are no short of being shitty.

I know Ferrari or Porsche could make a car with a higher topspeed than the McLaren. I also know why they haven't done so. But some have tried and failed miserable, and in that light IMO it IS fairly pathetic that record still stands...

bmagni · 08-05-2005, 04:08 PM

Originally Posted by LotusGT1

Koenigsegg hasn't proven shit on record so far, only paper claims.

wrong, the CCR acutally broke the record in february 2005 and the car was for display at the geneva motorshow.
http://www.motorworld.net/forum/showthread.php?t=24130

gucom · 08-05-2005, 04:29 PM

Keep the car stationary without touching the brakes, that is skill!

ok am i just really stupid or is that what neutral gear is for?

and yes it is just alot of show-off, with a simple button they could've achieved the same effect

LotusGT1 · 08-06-2005, 07:13 AM

Originally Posted by bmagni

Originally Posted by LotusGT1

Koenigsegg hasn't proven shit on record so far, only paper claims.

wrong, the CCR acutally broke the record in february 2005 and the car was for display at the geneva motorshow.
http://www.motorworld.net/forum/showthread.php?t=24130

LOL, how could I forget...

jakaracman · 08-06-2005, 04:19 PM

I couldnt care less about veyron (overcomplicated unreliable piece of sh...), but no photos? No such event, probably. It's really not hard toi do photos at that speed. I remember tkin photos for my mag at Indianapolis. Not much slower, and tthen (10 yrs ago) I did not have all electrinic piece of photogadgetery. Nikon F2, if I remember correctly ...

RC45 · 08-06-2005, 06:41 PM

Originally Posted by LotusGT1

From what I've read it was unable to function as a daily driver.

That's odd - because all of Reeves creations have been famous for their ease of use

bmagni · 08-06-2005, 08:45 PM

Originally Posted by LotusGT1

Originally Posted by bmagni

Originally Posted by LotusGT1

Koenigsegg hasn't proven shit on record so far, only paper claims.

wrong, the CCR acutally broke the record in february 2005 and the car was for display at the geneva motorshow.
http://www.motorworld.net/forum/showthread.php?t=24130

LOL, how could I forget...

it happens...

szumszer · 08-07-2005, 01:32 PM

a few run to 400 km/h, that is impressive in terms of this car's reliability; safety checks sound interesting, maybe without the whole procedure, the car is unable to reach 400 km/h anyway, and the addition of safety checks lowers vw liability ... may be

LotusGT1 · 08-08-2005, 01:37 AM

Originally Posted by RC45

Originally Posted by LotusGT1

From what I've read it was unable to function as a daily driver.

That's odd - because all of Reeves creations have been famous for their ease of use

Well, Callaway did built this car especially for beating records, not for the consumer market.

RC45 · 08-08-2005, 01:58 AM

Originally Posted by LotusGT1

Originally Posted by RC45

Originally Posted by LotusGT1

From what I've read it was unable to function as a daily driver.

That's odd - because all of Reeves creations have been famous for their ease of use

Well, Callaway did built this car especially for beating records, not for the consumer market.

Actually - the Callaway Twin Turbo Corvettes were regular GM supported RPO products.

The Sledgehammer was just an unlimited version of the regular production TT's. The mods require to get the RPO Callaway Twin Turbo to Sledgehammer status could be ordered if wanted - but no-one wanted to spend the $400,000 estimated cost to duplicate t.

However, a gentleman by the name John Lingenfelter was so moved by the results of Callaways efforts (and his 255mph run in the Sledgehammer) that the accomplished test driver, engine builder and race car driver was driven to continue where Reeves left off and go on to produce similar capable vehicles under his on label - Lingefelter Performance Engineering.

Really - the only "one off" of the Sledgehammer in 1988 were the race-spec Goodyear (if I remember correctly) tyres that allowed the safe run to 255mph (something VW still struggle to hanlde these days - tyres that can survive the torture

).

Face it, an American tuner has already done what VW can't

- and that is build a factory accepted and backed 255mph prduciton car.

LotusGT1 · 08-08-2005, 03:22 AM

The Chevrolet Callaway Corvette Sledgehammer was a one-off example produced to beat the top-speed record for a motorcar. Reeves Callaway headed the team of engineers who successfully produced a 255 mph car for the road. The team used an '88 production Callaway as a base, car No. 51. Callaway Corvettes are famous for their twin-turbo design, and that concept carries through to the Sledgehammer. The engineers stretched the engine to 898 bhp by using huge Turbonetics T04B-series turbos, increasing the boost and replacing parts of the engine with higher quality materials. The engine long block itself has little in common with the stock version. The block is a NASCAR series Chevrolet special product. Cylinder heads are made by Brodix. connecting rods are hand balanced. The rods carry special Mahle pistons. The Camshaft is made by Cam Techniques with full roller gear.

To keep everything cool, a huge copper/brass radiator with a G&O core was engineered, mounted on a steep angle and fed through ample openings in the nose. It's also supplemented by two electric fans mounted on a fabricated bracket. Power delivery goes through a Doug Nash 5-speed built to GTO racing specs and fitted to a special overdrive unit through a special adapter.

The Callaway Corvette Sledgehammer recorded its mind-boggling top speed of 254.76 mph at Transportation Research Center - a 7.5 mile oval with steeply banked turns and straightaways that stretch to the horizon. The car was driven by John Lingenfelter on Wednesday after prior successions of engine misfiring. However, the Sledgehammer is not regarded as the world's fastest production car because only a single unit was made, unlike the 240 mph McLaren F1 of which 100 units were produced.

The car was built as a one-off, to be decided afterwards it could be built for $400k, which nobody wanted. That still is a one-off then, isn't it? It doesn't make any less impressive what Callaway did though....

However, you're barking up the wrong tree here. LOL, I'm the first to admit VW is doing a pathetic job right now with the Bugatti. That whole car is debacle....

BTW, you might want to stop with that "american manufacturers don't get the praise they should"-attitude, especially when nobody is debating anything close to that subject. It's getting somewhat tiresome...

JaguarEtype · 08-08-2005, 04:07 AM

Im just suprised since it is a world record that they didnt get acceptable photography equipment to deal with the speed, they managed to get video of the Koinegsegg, as well as take pics of the SSC rocket car doing over mach one with a perfect shot of it breaking the sound barrier sending shockwaves through the air around it, taking pics of the Veyron doing 400kph should be a walk in the park....

qoute RC45

Actually it's not the kmh per se... but rather the extra time.

The car probably requires another 20 or 30 seconds at full throttle tp get the extra speed - and while they cover 2 or 3 more miles, this extra time at 110% throttle probably raises the oil temp to just coller than the surfcae of the sun, and the tyres lose 2mm of tread and begin to cook from the inside out

the time side of it im not so sure, ive read it takes the car about 14 seconds to get to 300kph, and less than 30 sec to get to 410 (maybe 400)
i think it is either for a momento thing, or most likely for safety .. id say checking the tire pressure is rather essential .... lol imagine a 400 kph blow out... ouch

qoute RC45

Face it, an American tuner has already done what VW can't - and that is build a factory accepted and backed 255mph produciton car.

as for the record books, i think these records are just land speed arent they?, non of them meet the requirements of fastest production car .. i think you have to sell over 300 models so the lingenfelter is out, the Maclaren F1 is out and the veyron is out, i dont even think theyve sold a single veyron YET. which is why the Koinegsegg CCR is the fastest production car and that took over from my old fav the 1989/92 Jaguar XJ220