Re: [DML] Accumalator
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [DML] Accumalator



Nobody's pointed out the more obvious reason for higher octane fuel: It has more chemical
energy. With the timing set to take advantage of this, you get more power, otherwise
you'll be exhausting burning gases.

I think there are obvious differences in the way the octane rating is expressed between
here and the US

Cheers

Martin
#1458

B Benson wrote:

> If an engine is designed to use 86 octane that's what you should use. Higher
> octane fuels are blended to combust at a slower pace while lower octane
> fuels burn much faster. This is opposite of what many may think. If you use
> the higher octane fuel the slower combustion can, over a long period of
> time, produce carbon deposits in the combustion chamber which raise the
> compression ratio. Higher compression ratios require higher octane, slower
> burning fuels. Therefore it's possible that your car can develop a
> dependency for high octane at some point. The slow burn of high octanes is
> necessary for turbo cars because the slower burn helps retard detonation
> which is when combustion takes place too early and catches the piston still
> trying to finish the compression cycle while the combustion is trying to
> drive it back down. The higher intake temperatures that come with turbo
> charging create that situation. The bottom line is you're wasting money
> using higher octane fuel if your engine wasn't designed for it.
>
> Bruce Benson


[Non-text portions of this message have been removed]






Home Back to the Home of PROJECT VIXEN 


Copyright ProjectVixen.com. All rights reserved.

Opinions expressed in posts reflect the views of their respective authors.
DMCForum Mailing List Archive  DMCNews Mailing List Archive  DMC-UK Mailing List Archive

This site contains affiliate links for which we may be compensated