M25 lap record

[Delinquent Man]

Does anyone know what the lap record is for the M25 and in what car it was done? Does anyone have any personal bests?

[dudleybloke]

there's quite a large thread about it on here somewhere.

[Fleckers]

128 miles

record was before speed cameras

Dont know what it was but I remember back in the 1980's sitting on the reigate roundabout and seeing lambos and 911's racing, we got moved on by BIB in their SD1's

personaly I have done it in less than 128 minutes

[phumy]

It was done in about 45 or 47 minutes by a Porsche turbo in the early '90's, started at the Dartford Tunnel and finished there. I doubt very much whether it could ever be beaten now due to the amount of cameras on there now. Im sure someone will be along soon with exact times and exact car.

[bobt]

Indeed in it's first couple of years of being fully operational there was a clandestine club of fast car owners who would meet every now and then at three or four in the morning and drive the "London Ring". Rather than todays "Ring Sticker" seen on the back of almost any model of car, they had a discreet window/bumber sticker that just said "sub 60", proclaiming they had completed a sub 60 minute lap.

[bazking69]

Official or unofficial?

[snowy slopes]

I did hear about this back in the day, and IIRC one of the original record holders was meant to be an xjs v12, although this could have been just rumours

[Rawwr]

These days you'd probably get a quicker time by walking around it.

[Thankyou4calling]

phumy said:

It was done in about 45 or 47 minutes by a Porsche turbo in the early '90's, started at the Dartford Tunnel and finished there. I doubt very much whether it could ever be beaten now due to the amount of cameras on there now. Im sure someone will be along soon with exact times and exact car.

Now come on! 128 miles in 45 minutes is an AVERAGE of 170mph. That is simply not possible in any car I would have thought.

[twazzock]

Couple of previous threads with interesting info.

http://www.pistonheads.com/gassing/topic.asp?t=217...
http://www.pistonheads.com/gassing/topic.asp?h=0&a...

[Celt]

Did some hap guy not come over with a modded supra and get caught? Vaguely remember seeing videos on YouTube.

[Celt]

Did some hap guy not come over with a modded supra and get caught? Vaguely remember seeing videos on YouTube.

[Johnnytheboy]

Anecdotally, a handful of very senior people at Ford Motorsport once did this RS200s. Allegedly.

[nowheyman]

Celt said:

Did some hap guy not come over with a modded supra and get caught? Vaguely remember seeing videos on YouTube.

T'was Smokey Nagata of Top Secret Japan. Funny video I thought;
http://www.youtube.com/watch?v=uWUslYuZ9k4

[Sir Bagalot]

Thankyou4calling said:

phumy said:

It was done in about 45 or 47 minutes by a Porsche turbo in the early '90's, started at the Dartford Tunnel and finished there. I doubt very much whether it could ever be beaten now due to the amount of cameras on there now. Im sure someone will be along soon with exact times and exact car.

Now come on! 128 miles in 45 minutes is an AVERAGE of 170mph. That is simply not possible in any car I would have thought.

That's what I thought. Turns out the M25 is 117/118 miles. So that brings the average speed at 45 mins to 157MPH. Still highly unlikely

[Sir Bagalot]

Also the slight issue of fuel. I've heard that a Lotus Carlton on full power will swallow a tankful of juice in 60 miles.

[cmackay81]

nowheyman said:

Celt said:

Did some hap guy not come over with a modded supra and get caught? Vaguely remember seeing videos on YouTube.

T'was Smokey Nagata of Top Secret Japan. Funny video I thought;
http://www.youtube.com/watch?v=uWUslYuZ9k4

hahaha, cool vid. "do you think this is a bloody playground? ..."
lol

what happened to him after this?

[cmackay81]

Sir Bagalot said:

Thankyou4calling said:

phumy said:

It was done in about 45 or 47 minutes by a Porsche turbo in the early '90's, started at the Dartford Tunnel and finished there. I doubt very much whether it could ever be beaten now due to the amount of cameras on there now. Im sure someone will be along soon with exact times and exact car.

Now come on! 128 miles in 45 minutes is an AVERAGE of 170mph. That is simply not possible in any car I would have thought.

That's what I thought. Turns out the M25 is 117/118 miles. So that brings the average speed at 45 mins to 157MPH. Still highly unlikely

agreed, 160 is very hard to drive at with occasional traffic, and for 45 mins would be quite painful.

[Nth]

Didn't Lonman have a crack at it at some point? Wouldn't surprise me

[Rich_W]

Nth said:

Didn't Lonman have a crack at it at some point? Wouldn't surprise me

Indeed. He said something like 45 mins. And a tankfull. Do-able I would think if you had Le Mans long range tanks in something fast but reliable. GT2, SLR perhaps.

If I ever win the lottery I'll throw a couple hundred grand at solving this problem. And documenting it too