What is SIDI Direct Injection?

[Falcman0o7]

What is SIDI Direct Injection and how good is it?
So there's Direction Injection but what is SI and DI?

[barra265t]

Spark Ignition, Direct Injection.. but I don't recall any Commodore prior to VE that didnt have spark plug ignition .. What next.. SWC?? (Steering Wheel Controlled), RFA (Right foot acceleration), FBS, (Friction Braking System)

[Franco Cozzo]

Originally Posted by barra265t

Spark Ignition, Direct Injection

Spark Ignition, Direct Injection, Direct Injection?

[bobthebilda]

Originally Posted by Big Damo

Spark Ignition, Direct Injection, Direct Injection?

Even the Holden website describes it as

3.0L SIDI Direct Injection V6

So it must be spark ignition direct injection direct injection. The ad was either written by someone with a stutter, or you get two injections before every spark.

Basically it was just an ego trip from the Holden marketing department, who thought, if we can sell the cruze in lots of numbers by saying the door makes a clunk sound when shut, then we can give the engine a fancy name, put a $5 tag on the back of the car, and maybe sell the car for an extra $500 to those just a little bit more gullible.

[stevz]

Originally Posted by bobthebilda

Even the Holden website describes it as

So it must be spark ignition direct injection direct injection. The ad was either written by someone with a stutter, or you get two injections before every spark.

Anyone with half a brain would understand that it is not meant to be read like that.
Maybe they should have put some brackets in to make it clearer for some people.

3.0L (SIDI) Direct injection V6

[prydey]

Originally Posted by stevz

Anyone with half a brain would understand that it is not meant to be read like that.
Maybe they should have put some brackets in to make it clearer for some people.

3.0L (SIDI) Direct injection V6

so do you say 'PIN number'?? or just 'PIN'?

i think the half brain people are the ones who get sucked in by holdens silly acronyms.

[LTDHO]

Originally Posted by Big Damo

Spark Ignition, Direct Injection, Direct Injection?

By looking at the VIN number, you can also get ABS brakes and LSD Diff.

[tapeworm]

The whole SIDI thing is such a 'Holden' thing to market...they know most people don't know what's going on under their bonnet and will just assume it's some sort of space age phenomenon occuring each time they turn the ingnition, ha..it's the same fools who think their Cruze/Barina/Captiva are all Australian fair dinkum meat pies yo..

[svo supporter]

Originally Posted by tapeworm

it's the same fools who think their Cruze/ are all Australian fair dinkum meat pies yo..

Strangely enough this car is AUSSIE built.

Before we get the band wagon saying anything about imported stuff for Holdens, just think where some Ford parts come from.

[Falcman0o7]

Originally Posted by tapeworm

The whole SIDI thing is such a 'Holden' thing to market...they know most people don't know what's going on under their bonnet and will just assume it's some sort of space age phenomenon occuring each time they turn the ingnition, ha..it's the same fools who think their Cruze/Barina/Captiva are all Australian fair dinkum meat pies yo..

LOL!!! Love it!

[AWD Chaser]

http://www.holden.com.au/holden-inno...echnology/sidi

[Dave R]

Well originally they wanted DISI but Mazda took that one. DI has obviously made the motor alot better, it's now competitive with the I6 and in the states puts out as much as 230kw.

[Franco Cozzo]

Why didn't they go direct injection on the I6?

[FGII-XR6]

even with out it it is a vastly superior engine. not bias there the falcon I6 is one of fords best efforts

Originally Posted by Big Damo

Why didn't they go direct injection on the I6?

[Franco Cozzo]

Originally Posted by au3xr6

even with out it it is a vastly superior engine. not bias there the falcon I6 is one of fords best efforts

Yes, but wouldn't it have been even better with it?

[MethodX]

All car companies use those marketing terms.
Its nothing new.

[jpd80]

Originally Posted by Big Damo

Why didn't they go direct injection on the I6?

They don't need it.
Ford's Duratec 37 doesn't need it either to make the same power and torque as GM's SIDI 3.6.
The D37 is within 15 nm of the Falcon's torque in the bottom end and stomps on it above 5,000 rpm.

[Paxton]

Originally Posted by jpd80

They don't need it.
Ford's Duratec 37 doesn't need it either to make the same power and torque as GM's SIDI 3.6.
The D37 is within 15 nm of the Falcon's torque in the bottom end and stomps on it above 5,000 rpm.

Yup. Sadly, the I6 is in its last days. It doesn't matter if Falcon stays RWD or not - the I6 will not be around for the next large Ford.

[Buntz]

Originally Posted by Paxton

Yup. Sadly, the I6 is in its last days. It doesn't matter if Falcon stays RWD or not - the I6 will not be around for the next large Ford.

I've kind of resigned myself to that fact. Hopefully in a year or so with this new job I can get an FGII.

[Franco Cozzo]

Originally Posted by jpd80

They don't need it.
Ford's Duratec 37 doesn't need it either to make the same power and torque as GM's SIDI 3.6.
The D37 is within 15 nm of the Falcon's torque in the bottom end and stomps on it above 5,000 rpm.

They don't NEED it, but if they have, wouldn't power figures have been up on the already impressive figures?

[vztrt]

Originally Posted by Big Damo

Why didn't they go direct injection on the I6?

Apparently one has been made. Obviously the gains v's cost isn't there.

I know DI in an NA application is not worth the trouble....but with something like a turbo its quite good.

[Bossxr8]

Originally Posted by vztrt

Apparently one has been made. Obviously the gains v's cost isn't there.

I know DI in an NA application is not worth the trouble....but with something like a turbo its quite good.

Yeah, they have cobbled together prototype direct injection I6's, but they will probably never see the light of day. DI would require a massive redesign of the cylinder head to accomodate it, a lot of new parts would need to be designed, which would be bloody expensive.

Its like when they had prototype twin cam motors for the EA but they went with the SOHC version because it did what they wanted and was cheaper to make.

What to make of Fords TDCi badge. Turbo diesel compression ignition.

[Paxton]

Originally Posted by Bossxr8

What to make of Fords TDCi badge. Turbo diesel compression ignition.

Turbo Diesel, Common-rail Injection.

Like the 3.9 Multipoint days...

[Franco Cozzo]

Originally Posted by Bossxr8

Yeah, they have cobbled together prototype direct injection I6's, but they will probably never see the light of day. DI would require a massive redesign of the cylinder head to accomodate it, a lot of new parts would need to be designed, which would be bloody expensive.

Its like when they had prototype twin cam motors for the EA but they went with the SOHC version because it did what they wanted and was cheaper to make.

What to make of Fords TDCi badge. Turbo diesel compression ignition.

Certainly would have been on the cards when they did the BA engine right? That would have cost a fair bit in design?

Or didn't they think about it back then?

[Bossxr8]

Originally Posted by Big Damo

Certainly would have been on the cards when they did the BA engine right? That would have cost a fair bit in design?

Or didn't they think about it back then?

I don't even think direct injection was around then when the BA was in the planning stages. If it was it was certainly in its infancy, and a lot more expensive than it is now. I remember DI added around $1500 to the price of an engine, although that has come down a fair bit now that its a lot more common.

[jpd80]

Originally Posted by Bossxr8

Yeah, they have cobbled together prototype direct injection I6's, but they will probably never see the light of day. DI would require a massive redesign of the cylinder head to accommodate it, a lot of new parts would need to be designed, which would be bloody expensive.

Could they use the cylinder head modules off the Duratec 35 as it is
Ecoboost friendly?
I'm thinking that some bright spark with a CGI program could take the
camshaft, spring, valve and combustion chamber module off the Duratec
and using "One Ford" use all of those existing parts in developing the head.
The D35 piston diameter is close to that of the 4.0 I-6....

Interesting part is that the Ecoboost V6 has the fuel injector on the side
of the combustion chamber, unlike most European and Japanese set ups.

[Bossxr8]

Originally Posted by jpd80

Could they use the cylinder head modules off the Duratec 35 as it is
Ecoboost friendly?
I'm thinking that some bright spark with a CGI program could take the
camshaft, spring, valve and combustion chamber module off the Duratec
and using "One Ford" use all of those existing parts in developing the head.
The D35 piston diameter is close to that of the 4.0 I-6....

Interesting part is that the Ecoboost V6 has the fuel injector on the side
of the combustion chamber, unlike most European and Japanese set ups.

Its still going to be expensive no matter what.

I think they have already copied the design off another Ford engine anyway, Modular maybe. They seem similar.

[Dave R]

Originally Posted by Big Damo

Why didn't they go direct injection on the I6?

Cost $$$

[ebxr8240]

Combustion chamber injection...
Older EFI is direct manifold or port injection...
It mainly helps with EPA...

[Buntz]

I think they went with SIDI as a marketing term. Sounds like "City" you see?

But to us Ford fans... it's just SHIDI.