striker2
Official CEG Vendor
I am glad this topic came up it has alot of good info without it turning into a fight about which is better.
I am so glad that everyone is being so civil about this this time. probably 9 times out 10 (maybe more) these discussions break down in just a big pissing match.
anyways, I do agree that drag numbers arent the most important thing, however having had the pleasure of owning a Zetec, a turbo Zetec, an SVT 2.5L and a 3L I will say the following. while all engines are very capable of making way more power than this platform can handle, I much preferred the Zetecs powerband over the duratec, both in N/A and turbo forms as well as the handling.
for the power, the Zetecs powerband feels much better suited to the gear ratios, IMO of course, than the Duratec, especially in turbo form. while the Duratec does have a nice long, relatively flat torque curve, the Zetec builds all the way to ~4500RPM where it peaks and flattens out (or starts to drop slightly if boosted without cam gears). the HP is then sufficient to pull all the way to redline, without feeling like it just falls on its face, at which point you shift and you are now right back around that peak torque point. I also feel that the 2.5L Duratec lacks severely in the torque department (especially the SVT), only ~170 lb-ft of torque with 200HP? perhaps thats part of why the Zetec feels like its faster than it was, but also made it more fun to drive, is because it made more torque than it did power. as for the difference between a modded Zetec and an SE V6, the V6 does make a little more power to the wheels, but its added weight (about 200-300lbs) and lower speed shift points (due to the higher FD ratio) means the Zetec is just as fast.
now for the handling. again, im probably one of the few people on here than can truly compare the handling between the Zetec and Duratec cars because not only did I have both, I actually had the exact same setup on both cars. Both cars had 19mm rear sway bars (SVT was stock while the Zetec had the BAT 19mm bar), both cars had rear strut tower braces, and both cars had the exact same struts/springs, Konis w/GCs (actually moved them from the Zetec to the SVT to install the Ksports on the Zetec). again, both cars were very capable in the corners, but the Duratec just felt more nose heavy and plowed a little easier, while the Zetec felt much more neutral and tossable. I suspect that difference came from the increased weight of the SVT, part of which is from the engine (only about 100lbs before someone goes claiming they weigh the same
Now for a real world comparison, not a drag strip but rather The Dragon and the The Cherahola Skyway. I have driven both N/A and turbo Zetec as well as the 2.5L SVT down there. obviously the turbo Zetec was the most fun, it did have the most power after all, but even the N/A Zetec seemed like more fun than the SVT. in either setup, I could brake later (the Zetec had the SVT brake brackets and rear disc conversion, also had the same pads EBC red stuff pads that got moved to the SVT before it went down to the Dragon), get on the power sooner and throw it into the corners harder with the Zetec than i could with the SVT. obviously I dont have timed runs to compare, and they wouldnt really matter anyways since we were in a group and you can only go as fast as the person in front of you. now, since the turns are so tight that you would have to down shift to 2nd, you always ended up in the middle of the RPM band when getting back on the power, right were the Zetec peaks. this meant that while the Duratec does have that increased low end torque, it was never used, and short of taking off from a stop or making a turn onto a side street, I rarely had the RPMs low enough in the SVT to put that extra grunt to use, even in the real world. The Zetec on the other hand, especially the turbo Zetec, made all its torque higher up, so it was actually used. with the turbo, even if you had to drop to say 2500RPMs for a turn, if you punched it the boost was there and you were gone, even the 3L with its extra torque over the 2.5 wasnt like that.
now dont get me wrong, it may sound like im claiming the Zetec makes more torque than the Duratec higher up, we all know thats not true (unless its a turbo Zetec). however comparing the numbers, the Zetec actually isnt that far off the non-SVT 2.5L in HP/L or TQ/L, especially a lightly modded Zetec. Lightly modded Zetec should be about 140-145 BHP which makes it ~70-72BHP/L and with 130TQ is ~65TQ/L while the non-SVT 2.5 makes 170BHP or ~68BHP/L and 165TQ which is ~66TQ/L. A stock Zetec makes the same torque but a little less HP at 125, so that would be ~62.5BHP/L. The biggest difference is the shape of the curve itself, the Duratecs is nice and flat, which does make for smooth acceleration, but the semi-peakiness of the Zetec was just more fun to drive.
so, to conclude, I believe that the Zetec was just more fun to drive (and has certainly proven more reliable) than the Duratec. not necessarily faster (unless its turboed and then not only is it more fun but also faster), just more fun. If I still had my old Zetec I would not hesitate to let anyone come and drive it and see just how much fun the Zetec can be (ask icysvt or Hectik how much fun my turbo Zetec was).
edit: didnt realize how long it was already. :laugh:
another point, my brother has a 00 ZX3 (obviously with the Zetec and 5 speed) that i had originally bought to be a cheap, fun beater. it needed some trans work when i got it (stuck in 2nd gear) but that was fine since i only paid $700 to have it delivered to me. got it all fixed up and drove it and it was a massive reminder of just how much i loved driving the old Zetec. so much fun for such a low price. so much so that I have started looking for another cheap Zetec to have as a second car (not that i can afford one right now but thats not the point). the point is, that i would gladly trade my VR4 (or the SVT when i had it) for another pre98 Zetec Contour (and some cash so i could turbo it). it was just so much fun to drive, never had problems (until after i built it and all that was caused by my piston choice, so my doing not the engine), and got great gas mileage. 2 of those things i still dont have with the VR4 and its not the first one, but i was lacking all 3 with the SVT (although the 3L was more fun than the 2.5, it still just wasnt as fun as the old Zetec).