New Pikes Peak Record 2015 Electric cars wins overall PPIHC

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mep
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Joined: 11 Oct 2003, 15:48
Location: Germany

Re: New Pikes Peak Record 2015 Electric cars wins overall PP

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I am glad it makes some sound. Sound gives you an important feedback of the vehicle and the speed.

J.A.W.
J.A.W.
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Joined: 01 Sep 2014, 05:10
Location: Altair IV.

Re: New Pikes Peak Record 2015 Electric cars wins overall PP

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flynfrog wrote:
SteveRacer wrote:
Someone stated that an ICE is going to lose 40% power from top to bottom of the mountain. I bet that number is for a non-turbo motor as a turbo will lose a significantly smaller amount.
40% is to sea level and yes a turbo helps but there isn't much O2 up there.

Actually SR is correct..

Indeed, it was almost a century ago that Pikes Peak was selected for/as a high altitude base by Stanford Moss
for carrying out field research - & developing early ICE aero-engine turbo-charger tech..

The self compensation of compressor/turbine pressures over the atmospheric altitude gradient was seen
as advantageous compared to fixed mechanical supercharging ratios.

Of course, the primary basis was to maintain sea-level engine power at altitude by turbo compensation,
rather than over-boosting, but the principles still apply..

http://www.enginehistory.org/Piston/Int ... Cdev.shtml
Last edited by J.A.W. on 15 Aug 2015, 23:50, edited 1 time in total.
"Well, we knocked the bastard off!"

Ed Hilary on being 1st to top Mt Everest,
(& 1st to do a surface traverse across Antarctica,
in good Kiwi style - riding a Massey Ferguson farm
tractor - with a few extemporised mod's to hack the task).

J.A.W.
J.A.W.
109
Joined: 01 Sep 2014, 05:10
Location: Altair IV.

Re: New Pikes Peak Record 2015 Electric cars wins overall PP

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mep wrote:I am glad it makes some sound. Sound gives you an important feedback of the vehicle and the speed.
Too bad that the "sound" is such an awful whining noise, though..
"Well, we knocked the bastard off!"

Ed Hilary on being 1st to top Mt Everest,
(& 1st to do a surface traverse across Antarctica,
in good Kiwi style - riding a Massey Ferguson farm
tractor - with a few extemporised mod's to hack the task).

graham.reeds
graham.reeds
16
Joined: 30 Jul 2015, 09:16

Re: New Pikes Peak Record 2015 Electric cars wins overall PP

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If I ever make an EV sports car I am going to call it The Banshee.

Watching the vid he seems to lift rather early before braking whereas Loeb is a lot more on it.

Also his aero starts to fail as the air thins and wing is less effective - after a wiggle he lifts even more.

Fair play to him - I doubt I could get within 5 minutes of his time with the same equipment.