Contour Enthusiasts Group Archives Forums Modifications Zetec Performance svt zetec contour???

I believe he meant Foci to Foci. You can't throw a 6 speed into a Contour, bell housing and some of the linkage are different I believe.

LoCoz is right s/c don't have any lag which is why for this project I'm going with a s/c.I do love turbos though and I will put one on my next car after this project is done.I have a friend how has a similar setup in his svt focus plus some additional mods (cam gears,underdrive pulley, full exhaust system with high flow cat and he's putting down 217whp and 167lb-ft at the front wheels.If he can find his dyno sheet I will post it here.

no garantees, he may have lost it but I will try

Have you ever seen a dyno chart of a SC'd Zetec? They have no TQ vs a TC and serious LAG. Both the Jackson Racing and the Vortech make their top boost in the UPPER RPMs, hence the poor TQ. A PROPPERLY SIZED turbo makes it's full boost around 3000rpms, giving you great TQ. Why do they make their boost in the upper RPMS? Because they're tied to the crank, via a pulley and as the RPMs go up the SC spins faster. Also a SC, because it's tied to the crank, is a parasitic drag on the engine and isn't half as efficient as a TC.

Then there's the ability to intercool a turbo. The Vortech can be intercooled, but it would have to be a custom job is you tried a Air-Air intercooelr, vs buying their Air-Water setup. The Jackson Racing has no options for intercooling. Then there's the ease of turning up the boost on a turbo vs a SC, i.e. it can be done easily with a TC but not with a SC.

I've been surfing the Focus Forms for almost 2 years now and every SC'd Zetec chart looks so weak in comparison to a turbo'd Zetec. Look in this Forum's FI section, they have a topic comparing current FI options for the Duratec, and even on that bigger engine, SC get soundly thrashed vs a turbo. The only thing a SC has over a TC is they are cheaper than the only proven turbo kit for the Zetec.

Here's some HP figures:

JRSC SVTF kit: 231hp and 170tq at the CRANK at 6psi

Vortech SVT kit: 276hp and 179tq at the CRANK at 10psi

Tom's turbo kit: 282hp and 267tq at the CRANK at 9psi(239whp & 227wtq, early tuning figure)

Tom's stock Zetec Kit: 282hp and 287tq at the CRANK at 8psi(239whp and 244wtq)

As you can see, the numbers for the stock Zetec and SVT are amost identical when turbo'd and KILL any SC's numbers, especially the TQ figure.

If your gonna waste your money on a supercharger, go with the Vortech. It has better intercooling options and has more HP than the JR. Though a turbo still beats it in both spool up and HP&TQ.

i think the #'s say it all...

arent you beating out the performance #'s of the supercharfers also seawulf?

First there is no lag on a s/c. When the throtle hits the floor it's full boost.(crank driven). Turbos are exhaust gas driven which is why they take time to spool up they need the fast flowing gases to spin the turbo to make the boost.One more thing the s/c freewheels at idle and crusing speeds to be more efficient.I know I 've already said it but here it is again s/c have NO lag turbos DO. Here is the other thing s/c work with higher compression engines wheras turbos need lower compression which would mean I would have to change the pistons in order to achieve a lower compression ratio in my engine.

First, boost is boost, it doesn't matter what engine, or what compression it is. Lower compression is a good idea for either turbo or SC, but that's a whole nother can of works.

I can't speak for other engines, but when it comes to the Zetec a supercharger just can't compete with a turbo, period.

Let's look at a few charts.

Here's a Vortech on a regular Zetec at 9psi with several mods:



Here's my TQ chart, 211wtq at 9psi, stock block and full 3" exhaust(the blue line is with a 35shot)


Here's a stock Zetec with Turbo Tom's kit at 8psi:


Here's a SVT with Tom's kit at most 8-9psi, not sure which.


Here's a custom SVT turbo kit at 6&10psi


Here's Jackson Racing's kit at, I belive, 6psi:


Here's a Vortech SVT chart at 9psi:

That's a mustang dyno and the guy says it's lower than it'd be on a dyno jet. He posed anotehr chart where he reved to 7600rpms(stock redline is 7250) here: http://www.dfwstangs.com/hosting/Saleen09/resized_dyno_1103.jpg You may have to cut and paste the link, cause it doesn't let you view the image inline. That's actually fairly respectible, but I don't like the fact that he's reving past the stock redline. For ease of engine internals, you shouldn't rev past the stock redline on boost on the stock block.

Now the SVT will respond better to boost since it has a better flowing head and intake, but the higher compression means you won't make much more HP than a totally stock Zetec since you'll have to pull more timing on the SVT. You will never convince me that a SC is better than a Turbo on the Zetec, but if you have to go SC, go with the Vortech. It will give you more HP and TQ than the JR, though it's a more involved install than the JR.

I am currently beating every Supercharger kit for any Zetec,except the SVT Vortech kit at HP and TQ. I am beating the SVT Vortech kit at TQ, but again, the SVT head and intake flows better and has a higher redline, so it will make more HP. Tom's turbo kit at www.focus-power.com, is the only proven turbo kit for either regular or SVT Zetecs, and it beats both stock JR or Vortech numbers, expecially TQ, though it makes no more HP than the stock Zetec turbo kit.

Let me just state this one more time for the cheap seats. Buying a brand new SVT engine to do a swap then to supercharge or turbo it is a WASTE of MONEY since you can't squease out more HP on the SVT with FI than on a regular Zetec since the higher compression on the SVT limits the boost and timing you can run. Your best bet is to add forged internals to the stock Zetec then do a Vortech or Turbo Tom turbo install. Tom also sells the Vortech at a good price and his tuning is second to none.

IF, you could get a slightly used SVT engine and wiring harness and ECU for around $1000, then I think it could be doable. But if you're buying brand new, it's not worth it.

man screw the whole s/c and t/c strap a big ass rocket to the car and you can run an easy 6 or so but i dont know about anything other than a 1/4 no daily driver sh!t

has anyone ever stopped to think that the large amount of torque being put out by the turbo kits would make up for whatever "lag" there is?