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VK2TV > CARS 09.07.08 23:50l 26 Lines 836 Bytes #999 (0) @ WW
BID : 41236_VK2TV
Read: GUEST
Subj: Re: Ethanol in Race cars
Path: DB0FHN<DB0MRW<DK0WUE<7M3TJZ<ZL2BAU<GB7LDI<VK2TV
Sent: 080709/2144Z @:VK2TV.#MNC.NSW.AUS.OC #:40883 [Kempsey, QF68JX] $:41236_VK
From: VK2TV@VK2TV.#MNC.NSW.AUS.OC
To : CARS@WW
# Generated by: TstHWin v2.21b - Registered to VK2TV
# On : 7/10/2008 7:44:07 A
# UTC: 7/9/2008 21:44:07 A
>> While all the car gurus are here can someone tell me why race cars use ) ethanol when it only has
>60% of the energy density of petrol.
I think there's more to it than energy density.
Up to 30% petrol can be added to diesel to improve the cold weather
characteristics of some diesel, but the higher octane rating (cetane
rating for diesel) of petrol doesn't produce a more explosive mix and cause
engine damage as bush mechanics would suggest might happen. In fact
the octane rating of the petrol and the cetane rating of the diesel are
both reduced when the products are mixed together.
Where are all the industrial chemists when you need them?
Cheers ... Ray vk2tv
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