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Old 03-05-2009, 03:42 PM   #84
UsedTaHaveA68
 
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Drives: Hyundai Sonata
Join Date: Feb 2009
Location: Little Rock, AR
Posts: 497
Quote:
Originally Posted by 69Firebird View Post
I was just going to say it but spd98 beat me to it. With a DI engine the fuel is sprayed in just before ignition, better atomization and cooler charge = less detonation.

The LS3 is sweet, but if they added DI it would be out of control. More power and better fuel economy.
Agreed. I don't understand why engines haven't been DI'd for years now. Diesels have always been direct injected (or at least for as long as I remember). I remember when Mercury Marine came out with DI in their outboard motors back in the mid '90s, but autos still aren't getting them. Why WOULDN'T they use something to increase the efficiency of an engine?
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