What is SIDI Direct Injection?

[Swordsman88]

Originally Posted by KuRT12

You are severely misguided. I am a Holden man, but i am not bias and i know were to put credit were it is deserved. i currrently drive a VE SIDI SV6 and am considering buying an 5.0L GS later this year.

I'll think you'll find that there are only a few one eyed ****** (on both sides of the fence) that love to make a lot of noise.

From reading your above posts you appear to be one.
Oh the hypocrisy.

Good to see some holden guys on here. Provides another perspective on things in particular holden cars which its easy to abuse amongst ford fans when alot of guys (myself included) haven't even driven them.

I think engine wise there is no doubt that SIDI has been a big improvement (more on some models than others) over what holden had before. So if you upgrading from a previous VE (or a pre-FG falcon) than you will get fuel burn savings most likely that are noticeable, which is great. The 3.6 SIDI is also no slouch so another plus.

The problem for me is that the rest of the package is not as good as the FG based on what i've found driving them, what others have told me and critical reviews. In addition, the 3.0 SIDI has struggled to beat 6sp auto falcon's by enough of a margin to justify its lower performance. Unlike the 3.6SIDI that gives great punch (if more revy than the I6) the 3.0 needs to be beaten a fair bit harder based on my understanding. The now infamous drive.com.au bathurst fuel economy test was evidence of that.

It is this latter reason my sig calles it 'successful in decieving individuals'. The gain in fuel efficiency and performance may have been there versus previous base VE powerplants but it aint there versus many competitors. I think the EB 2.0I4t falcon will rip the 3.0 SIDI a new one in just about every way imagineable. I see recent reveiws of the updated captiva say the newly fitted 3.0 SIDI engine is pretty average in that car too. DI isn't a saviour for poor engine design...and the alloytec (3.0 size especially) is now a long way from world's best. The fact a 3.7 non-DI duratec V6 matches or exceeds it in just about every measurment is proof of that at least, let alone fact it struggles to beat the venerable 4.0L I6....