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Acronym for Spark Ignition Direct injection

It's the gasoline form of direct injection originally used only on diesel engines, now being used on some gasoline engines. Improves efficiency and power output.

Fuel injectors used in direct injection systems are more expensive than standard fuel injectors due to requiring more durable materials to withstand higher temperatures as the fuel injector is placed right into the combustion chamber.
This new SIDI engine sure is powerful, and the fuel economy ain't to bad either.
sidi by ionyou March 5, 2011
Related Words
sidi sidies sidiiq sidin' sidiot sidiah Siding sidious sidiq sidiqot
A Scottish farmer who has intimate (typicall sexual in nature) relationships with their sheepdogs. Created by the Irish as a way of insulting the Scottish. Many Scots find this extremely insulting to theirselves and their ancestors.
Your uncle is such a badass sidi.
You sidi!
Ewww, he's a sidi.
sidi by harry23243 August 8, 2007
The best surname in the word.
The guy named Sidi can fuck every girl he wants.
Most probably use glasses and a beautiful mustache.
He fucked all girls.. He must be a Sidi
Sidi by Sidizismo January 14, 2020
you're crazy hard workin and always do hella extra therefore nerd. but at the same time ur as childish as a 12 yr old girl and then you have this fuckin movie nerd side of you were you obsess over celebs like a weirdo. then you likes fuckin travis and trap music and somehow that helps you write essays and at the same time you enjoy shit like harry styles like
Sidi by Hunnys May 16, 2017
Detroit native: "We live in da sidi"
sidi by Orginal Gangsta November 10, 2008
sidi is good at everything
O sidi se pataei
sidi by sidi9 November 20, 2021