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Old 12-14-2008, 04:53 PM   #9

theholycow's Avatar
Drives: '02 GMC Sierra, '80 Lesabre
Join Date: Mar 2008
Location: RI
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Originally Posted by XanthosV6 View Post
the DI has a cooling effect on the air/fuel mixture - not to mention that the droplets are smaller so will provide a more even mixture - that will burn more evenly with less chance of knock. Its like having an inherent intercooler. At least, on paper. We won't know for sure till somebody straps a turbo/super up to one.
Volkswagen's latest 2.0 turbo engine is DI, I'm pretty sure. IIRC, the great thing about DI is that you can change when the fuel is injected, so you don't have to worry about knock; DI should be better than SFI for FI.

Sorry about the vagueness. I'd apologize for the heavy use of acronyms too, but that was necessary. You know, I could type a couple dozen more characters to spell out "forced induction", "direct injection", and "sequential fuel injection"...or I could type out this long-winded explanation instead. I mean, really, what would you do?
Removing weight has surprisingly little effect on fuel economy
Engine break-in procedure | Gear ratios
2002 GMC Sierra 4x4 5.3 (190,000 miles and going strong)
1980 Buick Lesabre family heirloom with 36,000 miles
2008 Volkswagen Rabbit 2 door I5-2.5 5spd DD lease
Originally Posted by CamaroSpike23 View Post
she really underestimates the damage i would do to her reproductive organs is the place for all the naughty stuff you can't get away with on this forum...
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