Acceleration: F40, F50, Enzo, CGT & Veyron

I don't think only about the weight difference. Little about wildest engine for europeans. BTW the weight saving is the 70-80% of the better performance.

The LM has three weight: 1050 kgs, 998 kgs and 980 kgs for the two LMs with the top of the performances.
These cars were 880 hp able with the 3.0L LM spec engine, during qualifing setting.

The Totip Ennea F40 you are looking for, was a 1993 N-GT with GT1 spec for the 1994.
That car weight 1050 kg, and the engine spec was lower than full 1995 GT1 620-650 bhp GTE specification.

Not a case that car run 4.07 min in qualifing of 24H LeMans in 1994, when the F40s GTE were 3.55 min able in 1995 (the F1 GTRs were 3 seconds slower).
Than, 3.52 in 1996.

The F40s in LM/GTE specification are very quick about engines, but they has a compromise about downforce for LeMans.
In 1996 the GTEs were slower than the GTRs only for the downforce excess compared new solution of the GTRs. Lighter, geometry suspensions improved and much more thin than the 1995 GTR spec about nose and wing settings.
In 1997 the long tail for the GTRs even more improved.

 

O.k. well when I get a VBOX file off an F40 I will publish the "as delivered power" to the wheels on the said run provided to me. This is always very interesting as it answers allot of unknown questions.

If its a USA car it will marry up very close to my own car (at its current boost setting) and I will overlay the files and post the results in this thread.

 

Only about 2400 pounds.

 

They actually could top 900 horsepower on the high boost setting with no restrictor.

And no LM had a "3.0L" engine, they all, just like the road cars were 2.9L units.

 

900 hp were for the GTE with the 3.6L..

And here in Italy we are talking 3 liters for 2936 cc like 5 liters for 4942cc...

 

2936cc is 2.9L, not 3.0L. Ferrari consider the F40 a 2.9L....

And the LM, not GTE could pull off over 900 horsepower. The 3.6L GTE's had more torque, but less horsepower.

"Michelotto's work resulted in the F40 LM, which first took to track for testing late in 1988. Interestingly much of the speculation before the F40's launch suggested that it would be called 'Le Mans', which now proved to be partly right. The differences between the road and racing cars were subtle with the carbon fibre splitter, rear diffusers and adjustable rear wing as the most obvious. Furthermore the pop-up headlights were replaced by two big perspex covered units and additional NACA-ducts hinted at an increased cooling capacity. A new engine management system and increased compression saw the power increased to at least 720 bhp, but for qualifying the boost could be increased to yield in excess of 900 bhp. The interior was stripped even further and the dashboard was replaced by a state of the art digital setup."

 

288 was called with the 2855cc. The 308 was called with 2926cc, the F40 is 2936. BTW is not a problem.
Here in Italy we consider the 308 a 3 liters, the 328 is 3.2L being 3186cc, like a 512BB/TR as 5 liters being 4942cc. A Testarossa is not a 4.9L for us!

I'm happy to know about 900+ hp for the LM with 2.6 bar of boost. I know about 880 hp reading how Michelotto saying in Italian Magazines and how a German F40LM owner said me years ago during a Mugello Ferrari Day meeting.

Take a look at that links about the GTE

http://www.ferraris-online.com/pages/carintro.php?reqcardir=FE-F40-84503
We are pleased to offer F40 LM GTE s/n 84503, one of only six F40 LM GTEs built. F40 LM GTE s/n 84503 is an Evo 2, or second evolution of the F40 LM GTE fitted with a 3.6 liter motor producing 720 hp and an ungodly amount of torque for racing and BIG hp for qualifying.
“ At this point, (Oct. 1996) four F40 GTE (E for Evoluzione) have been built. (No s/n mentioned but I believe 74045 – 82404 – 83405 – 90001). Re: the engine, after the first Evo in 1995 (from 3 litre to 3.5 litre), the 2nd Evo (3.6 litre) comes for the 1996 season due to a rule change (admission restrictor of 36.9 mm instead of 38 mm in 1995) to keep the same power rate (635 hp) and torque (75 mkg) at same revs, and to make the engine smoother for using.”
At 1.83 bar the 3.6 litre engine is 646 CV HP at 7500 rpm or about 720 SAE HP.
The second boost setting is 2.05 bar.
The third boost setting is 2.25 bar.
The fourth setting is for qualifying only and is 2.4 bar.

 

GTE 3.6L run 720 HP SAE without restrictors at 1.83 bar of boost, with a top of 2.4 for qualifing.
720hp is not the max power output for the GTE.
Even 900hp the top power?

http://www.qv500.com/ferrarif40p10.php
GTE's getting a choice of three alternative engines that could be selected according to the nature of any given circuit. They included a 3-litre for low fuel consumption tracks like Monza, a 3.5-litre for intermediate circuits and a 3.6 for Le Mans. Although based on the Tipo F120 B engines, these GTE powerplants were thoroughly revised, displacement being increased on all but the three-litre motor whilst output could go as high as 800bhp in unrestricted form or 660bhp with the air-restrictors in place. This wasn't only attributable to the increased capacity but also new electronic management custom mapped to optimise performance.

LM run from 2.2 to 2.6 bar maximun of boost from 720 to 900+ hp.

http://www.qv500.com/ferrarif40p2.php
LM's came with a racing version of the Tipo F120 A engine, this hot unit, designated Tipo F120 B, retaining an identical "three-litre displacement" of 2936cc. The two IHI turbochargers were cranked up to 2.6bar (compared to 1.1 for the road car) whilst compression was increased to 8.0:1 (from 7.7:1). Bigger Behr intercoolers, new camshafts and an all-new engine management system with Weber Marelli IAW 072 controlling dual injectors per cylinder were other special features. Output grew to an F1-rivalling 720bhp at 7500rpm but without the 38mm air restrictors in place, a monumental 760bhp was reputedly on tap.

 

Seems LMs and GTEs has exactly the same power output (720hp > 900hp) without restrictors, but more boost pressure for the LM than the GTE being a smaller displacement engine.
Here, they are all calling the stock 2936cc as "three-litre displacement".

In the pics the AutoCapital LM specs
850hp @ 2.5 bar for qualifing and weight 998 kgs

I repeat, is not a problem, but there could be some difference in top power behind different informations...or different peak of engine output
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LOL, wow....2950cc and up is 3.0L. 2936cc is 2.9L according to Ferrari and anyone who has any knowledge of the auto industry.

 

Oh, I know the GTE's could push out the same power as a LM, was never doubting that. Just wanted to make sure you knew the LM's could, and did match GTE power levels.

As for the 2.9L and 3.0L, choose to say what you want. But Ferrari have always officially called the F40 engine a 2.9L. Which is what it is. It would have to be a 2950cc and up to be a 3.0L. A 2936cc unit rounds down to a 2.9L. It is all cool, we are here to exchange information. I love reading all your test info.

 

+1 the other thing you can't forget is altitude.

 

Indeed, in my excitement I forgot to add that one

Along with wind (< not induced by eating a curry! but the atmospheric type).

Please someone send me a race logic file

 

[email protected]

 

Oh I need the .dbn file off your PC so I can load it into my VBOX Tools software so I can run the power calculation for you.

Thanks mate.

p.s. best to E-mail it to me.

 

Great Job, and very interesting to see how could the US car.
You are running 60 - 140 mph (96 - 225 km/h) in 12.3 seconds.

Italian magazine in 11.8 seconds are able to run from 100 to 240 km/h.
The Euro car is almost 15 km/h quicker in the same time period.

If we are looking the 100 -200 km/h of BillS is approx. 8.2 secs, when the mags are all well down 7 seconds (6.4s)..

 

^ I'd suggest the BIGGEST reason for this is they are hanging the car off the rev limiter rather than changing gear like Bill, as the F40 is marginal (for 200kmh) depending on what figures you read as to what speed it will attain in 3rd gear

Take out a gear shift and there is a big chunk of time there.

I will tell you more when I see his original .dbn file but would say also he is not forcing the gear changes, I can see in the one of the files there is a massive gap on one shift as an example of what I am trying to convey.

 

Sure, about 100-200 km/h, what speed it will attain in 3rd gear, but here you are the 60 - 140 mph V's 100-220 km/h with exactly two gearshift both.

Bill S is running 60-140 mph in 12.3 seconds with US car and magazines are able 9.3 seconds the 100 - 220 km/h with Euro car.

http://www.autozine.org/959/959_9.htm
In other test FastLane was able of 60-140 mph 10.1s with the Euro-spec, so, 2.2 seconds quicker than how Bill S was able to do.

 

http://www.evo.co.uk/carreviews/evocarreviews/205671/ferrari_599_gtb_fiorano.html

The F40 may be almost 20 years old, but even by today&#8217;s standards the stripped-out, 1100kg, twin-turbo road-racer is stupendously quick. Fast Lane magazine stuck its test gear to one in the late &#8217;80s and recorded 0 to 60mph in 3.9sec, 0-100 in 7.8 and 0-140 in 14 dead.

60-100 mph 3.9 secs
60-140 mph 10.1 secs

 

Good point. Speed shifting would surely lose a little bit of time. Not to sure if the owner of a near half-million dollar car would want to do that though LOL. But the potential is there. That is one of the reasons the LM has straight-cut gears in the gearbox. Makes for much quicker shifts....