Mclaren Lm

[MCLARENLMGUY]

Some say top speed is 240.1 and some say faster...Anyone know for SURE?

[Peloton25]

The LM would not reach 240.1 mph due to the drag created by the rear wing and front spoiler which add additional downforce. My guess is that an LM would be good for roughly 220-225 mph maximum.

The standard road car did 240.1mph, but only with the 7500 RPM rev limiter removed. With the rev limiter in place the road car is probably good for about 230 mph.

>8^)
ER

[hurstg01]

Originally Posted by Peloton25

The LM would not reach 240.1 mph due to the drag created by the rear wing and front spoiler which add additional downforce. My guess is that an LM would be good for roughly 220-225 mph maximum.

The standard road car did 240.1mph, but only with the 7500 RPM rev limiter removed. With the rev limiter in place the road car is probably good for about 230 mph.

>8^)
ER

Thats what i read - i also read that the LM would 'only' reach a max of 225mph, due to both the points raised by Erik and due to the shorter gearbox ratios, making acceleration a greater factor in the LM than the top speed(anyone remember Andy Wallace's LM 0-100-0 test in Autocar?......)

There was actually a thread dedicated to this question here - http://www.automotiveforums.com/vbul...d.php?t=451991

Mind you, stick an LM motor in a road-going non-HDF-kitted F1, take off the wiper, sticky-tape the shutlines on the bonnet and over the indicators as per the original top speed run and i am sure this would beat 240.1mph......

[payso]

Whats the performance figures of #073?
Has anyone tested that car?

[Peloton25]

Originally Posted by hurstg01

...and due to the shorter gearbox ratios, making acceleration a greater factor in the LM than the top speed.

Ahh yeah - neglected to mention that. Thanks!

And no tests of #073 to my knowledge and I doubt there ever would be unfortunately.

>8^)
ER

[Le Man]

How about an F1 GT Road car with an LM spec engine, with the rev limiter removed. Perhaps we shall never know!!! 250 mph plus with the correct gearing.

[McLaren F1 Guy]

I've read in a few places that the top speed for the LM Is 230 or even 235, but 225 seems a bit more accurate.

I've also read that is has a 0-60 of 2.9 seconds, which seems like it could be true but some sources say otherwise. Not trying to go off topic, but what is the actual number?

[hurstg01]

Originally Posted by McLaren F1 Guy

I've read in a few places that the top speed for the LM Is 230 or even 235, but 225 seems a bit more accurate.

I've also read that is has a 0-60 of 2.9 seconds, which seems like it could be true but some sources say otherwise. Not trying to go off topic, but what is the actual number?

The LM was used by CAR Magazine when they broke the world record for 0-100mph, doing it in 6.1 seconds. The car also reached a record by doing the 0-100-0 mph in 11.5 seconds being driven by Andy Wallace (Ex Harrods GTR Race Driver). This record has now been broken by the Ultima GTR and perhaps one more?........In this test though, it was stated they measured the 0-60 time as being 3.9.......

http://www.supercars.net/cars/1180.html - agrees with you though Mclaren F1 Guy, at 2.9sec 0-60mph

[amanichen]

Originally Posted by hurstg01

In this test though, it was stated they measured the 0-60 time as being 3.9.......

2.9s is the time if you can get a good launch. The LM is so light and powerful that it was difficult for the driver to do it in less than 3.9s.

[joe911]

This is a really debatable subject - but the (non-LM) production car top speed is not really 240.1 (IMHO) - the car that did that speed was modified by the factory (the rev. limit was removed/raised) and therefore not a "standard" production car.
While raising the rev. limit is not really cheating, as it's not increasing the performance per se, a customer could not do it. Also, I understand (it's been debated here before) some of the shut lines were taped up and the wiper removed (I think).

No standard F1 road car will reach anything like 240.1 (not that it's a problem). My friend did 221mph in his and it was on the rev. limiter. With newer tyres there is maybe a few more MPH to be had - 225mph perhaps. That is still an awesome speed, no question.

The factory will not raise/remove the rev.limit on request.

Apparently doing a Vmax run in an F1 is very rare for an owner - my friend was told, I seem to recall, that he was the only one the factory was aware of who'd done it.

Any car with HDF is going to be slower still.

Anyone got a listing of the engine specs and gear ratios between standard and LM handy?

[peter i]

I dout about the LM or GT top speed performance...
1. It reduce the Rev limiter
2. It Reduce the wight
3. Engine Performance level been improve....

The Ferrari F40LM for example ,it has reaching 370km/h compare to normal F40 did 325 Km/h ,it reduce wight of the car ,it has bigger turbo ,intercooler etc

a.same thing with higher down force level on the LM version and around 1000Kg of wight ....someone please correct me ,if i wrong......

b.If there is a limit for the car . it must be the racing "short" gear ratio ...

The LM would not reach 240.1 mph due to the drag created by the rear wing and front spoiler which add additional downforce. My guess is that an LM would be good for roughly 220-225 mph maximum.

I understand those extra Down force will pull down the top speed , but as it Rival F40LM can reach 230mph ,whats the point to Create a race car with lower speed ?

[amanichen]

Originally Posted by peter i

b.If there is a limit for the car . it must be the racing "short" gear ratio ...
I understand those extra Down force will pull down the top speed ,

but as it Rival F40LM can reach 230mph ,whats the point to Create a race car with lower speed ?

On most circuits you can't take advantage of a car's top speed. Therefore, cornering and midrange acceleration become the key ingredients for winning a race. Additionally, weight improves acceleration, but doesn't really affect top speed.

Slightly off topic: I would hardly call the F40LM a rival for the F1. The highest place of any Ferrari in the 1995 LeMans was 12th, and NONE of the Ferraris entered in the 1996 LeMans even finished. The F1, however, won the 1995 LeMans, and finished very successfully in 1996 and 1997. Purpose built race cars like the 911 GT1 and CLK-GTR were the F1's rivals, not the F40.

[joe911]

Production F1
- 1140 kg
- 627 bhp
- 651 Nm
- 7500 rpm
- 225 mph (240.1 mph with no rev limit)

F1 LM
- 1062 kg
- 680 bhp
- 703 Nm
- 8500 rpm
- 225 mph (according to Driving Ambition)

F1 GTR (1997)
- 915 kg (wow - that's light - what did they take out?)
- 600 bhp
- 506 lb/ft
- 7300 rpm
- 215 mph (according to Driving Ambition)

[McLaren F1 Guy]

Hey Joe911, you said your friend has an F1! Would you mind telling us any information like color, location, chassis number...? Thanks!

[joe911]

Originally Posted by McLaren F1 Guy

Hey Joe911, you said your friend has an F1! Would you mind telling us any information like color, location, chassis number...?

He's Flemke from PistonHeads - the car is blue with high mirrors and in Europe. There are quite a lot of details about the car been posted on the PistonHeads forum. I think there was a pictures thread on here too.