[Diy_efi] Timing Advance Curve?

Matt Porritt porrittm at anet.co.nz
Fri Dec 20 04:20:12 GMT 2002


Without coming across the wrong way Mike, why not put some truth to the
'rumours' on burn rate and octane rating etc?? I'm sure that a few people
would learn something.

I'm particularly interested in methanol's properties and rates etc.
-- 
Matt Porritt
RC Race Cars and Supplies
ICQ #22776813


On 20/12/02 12:27 PM Mike wrote

> At 12:03 PM 19/12/2002 -0800, you wrote:
>> --- Hugh Keir <hugh at sol.co.uk> wrote:
>> 
>>> In short octane has everything to do with the speed
>>> of the burn.
>> 
>> I'd add that this is only completely true in pump gas.
> 
> In Australia we call this a 'load of bull', it is *not*
> completely true under any circumstances Adam.
> 
> Your opinion is "broken and needs fixing" cause it perpetuates
> an invalid unsophisticated myth stemming from a misunderstanding
> of petrochemicals and what fuel companies do...
> 
> There 'might' be a minor correlation between higher octane
> and speed of burn it aint a causual relationship and in fact
> the opposite tends to be true to a much larger degree,
> 
>> Racing fuels often will burn more rapidly than pump
>> gas without pinging.
> 
> yes, and the component petrochemicals are not woefully
> dissimilar to that in pump gas, go talk to the fuel
> companies - and not some apprentice at the first
> level of contact...
> 
> You're way off the mark Adam, please dont put your
> opinion re octane/burn rate in your book - you might
> get sued...
> 
> Please check your references before putting anything
> like that down on paper or in emails for that matter
> 
> <sigh>
> 
> rgds
> 
> mike
> 
> 
> 
>>> High octane fuels do not necessarily give the most
>>> power.
>> 
>> In fact, unless your timing is optimized for them, you
>> can LOSE power with them.
>> 
>> =====
>> | Adam Wade                       1990 Kwak Zephyr 550 (Daphne) |
>> |   http://y42.photos.yahoo.com/bc/espresso_doppio/lst?.dir=/   |
>> | "It was like an emergency ward after a great catastrophe; it  |
>> |   didn't matter what race or class the victims belonged to.   |
>> |  They were all given the same miracle drug, which was coffee. |
>> |   The catastrophe in this case, of course, was that the sun   |
>> |     had come up again."                    -Kurt Vonnegut     |
>> 
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> 
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