[turbovation]

would it be possible to do to the focus what was done to the S2000???

SVT technology is similar to the S2000 becuase it's a small motor with the variable valve timing short runners or whatever.

2004+ S2000, however, used a 2.2 litre instead of a 2.0 in order to create more mid range torque because the car was impossible to drive w/out being above 4000 RPMs.

Could this same idea used in the SVT motor be applied to the 2.3 Duratec..because if so this thing could probably create more than 180WHP if it had the SVT technology kicking in at 6000 RPMs. May sacrifice a little low end torque but it will still be more torque than the SVT comes with stock.

Any answers??

 

[Egz]

Its called a Mazda 3 / Mazda 6 / Ford Fusion

We already have a dual runner intake manifold like the SVT. So does the Mazda 3 and cousins. They also have VCT on the intake cam like the SVT. An that doesn't improve top end power, but boost low end torque.

There really isn't anything we can take off of a SVT Focus to improve our engines. I'm sure if SVT was still around and funded, they could easily tweak more power out of our engines, but its mostly going to sit in cams, header, and possibly the intake.

 

[turbovation]

so does the ST have the same technology then as the mazda 3 since it's the 2.3 duratec not pzev?

 

[turbovation]

Also how does that work? I dont' understand. If the short runners kick in in the later RPMs why do they create low end torque? Is this adjustable?

 

[Egz]

No, the ST engine is about 95% the same as the PZEV. The difference is in the exhaust manifold and ECU tune.

Long runners promote low end torque, where as short runners promote high end HP. The engine starts out in long runner mode, and then switches around 4000 RPM.

 

[Egz]

Here is a good read on Duratec technologies: http://www.mazda6tech.com/index.php?option=content&task=view&id=14

From that website, the technologies found on the Focus Duratec engine are:
(VLIM) Variable Length Intake Manifold
(VTCS) Variable Tumble Control System

 

[turbovation]

Thanks J.E.

Shit. Maybe I'll just drop a 2.2 S2000 motor in my Focus!