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sport / rec.autos.sport.f1 / Re: Late Sixties F1 cars : performance figures?

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o Re: Late Sixties F1 cars : performance figures?Christopher Johnson

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Re: Late Sixties F1 cars : performance figures?

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Date: Mon, 25 Apr 2022 13:15:02 -0700 (PDT)
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Subject: Re: Late Sixties F1 cars : performance figures?
From: christop...@gmail.com (Christopher Johnson)
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 by: Christopher Johnson - Mon, 25 Apr 2022 20:15 UTC

On Tuesday, December 15, 2009 at 9:02:31 AM UTC, Dave Baker wrote:
> "Dave Baker" <Nu...@null.com> wrote in message
> news:hg5ih6$nl4$1...@news.datemas.de...
> > Putting modern slicks on the Lotus I get 2.0s, 4.2s and 14.5s
> > respectively. Depending on just how grippy 1960s tyres were that at least
> > gives you some limits to work with and an idea of its potential
> > performance. Round a race track it would be quicker than any modern road
> > supercar but lacking the ultimate power and massive downforce of a modern
> > F1 car it wouldn't get close to one of those. With 3000 lbs of downforce,
> > 4g cornering and 5g braking no none downforce car can approach that sort
> > of performance.
> >
> > Would be nice to see one on the Top Gear test track though. I suspect
> > though that if you tried to run modern slicks it would just break its
> > clutch and driveshafts unless they were uprated to take the loads.
> I've tried to make some sense of lap times back in the 60s compared to
> today's but as most of the circuits (all of them?) have changed over the
> years it's very difficult. Monaco seemed to be the best bet although the
> current circuit is slightly longer than it was back then.
> My best guesstimates make the Lotus about 25% slower than a modern F1 car in
> its early configuration before all the wings got added on and about 20%
> slower with them. That would put a lap of the Top Gear track at between 1:11
> and 1:14 minutes which is actually about what I would have guessed anyway
> strangely enough given I'd already said it would be quicker than any modern
> supercar and those are lapping at about 1:17 at best.
> That means a Lotus 49 would probably give a modern GT1 or Le Mans type car a
> run for its money on decent tyres and with modern brakes. The Cosworth DFV
> also ended up with over 500 bhp later in its life and with carbon fibre for
> aerofoils instead of the materials they had back then which couldn't take
> the loads and led to the wings being banned I reckon you could fairly easily
> modify a 49 to get within maybe 10% of a modern F1 car's lap times.
> You'd need slicks, uprated power transmission components, a bit of wind
> tunnel time to design a decent front and rear wing, carbon brakes and Bob's
> your aunty's husband. I also reckon the racing would be much better than it
> is now with more overtaking which current aero designs pretty much rule out
> when you get close to the car in front.
> The cars would also look a million times nicer. In fact it almost sounds
> like a plan. If you could design the tub with modern materials and safety
> features so it was slightly less than an absolute certainty that a driver
> would die in a high speed crash as they tended to do back in the day it
> might even work.
> Show of hands?
> --
> Dave Baker
Sounds like a great plan.

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