man that would be nice to see...i wonder what the dif in performance would beOriginally posted by godspunk32@Oct 12 2004, 02:53 PM
It's too bad Brad decided to use the SVT Contour heads on his car. It would have been really cool if he had swapped in a Mazda 6 engine with VVT.
well then you've answered the question...Originally posted by metalliman@Oct 12 2004, 06:55 PM
In all honesty, you can probably get more horsepower from SVT heads and cams, than using a VVT motor, although you might get a little more torque out of the VVT setup. As I understand it, the only difference between SVT cams and regular cams, is that the SVT intake cams are retarded a few degrees (8 or 9), I think. Given the fact that the non-SVT cams open so early before Top Dead Center (TDC), the SVT cams have a longer "effective" intake duration. This makes for a little less low end torque, but more power on the top end.
The VVT setup, is kinda the best of both worlds. As the motor winds up, the cam begins to retard, via a computer controlled oil actuator. This way, you don't lose any low end torque, and yet you get the extra top end. However, you won't get the extra horsepower from the higher compression ratio that the SVT heads offer.
Now if you could make a hybrid setup, SVT heads using VVT technology this would be ideal, however, it would require a lot of modification of the of the heads, assuming it's even possible (probably not).
Based on a simple dyno program I ran, you should expect a 25-30 hp gain from using SVT heads, cams, and oversized valves.
did you try mounting the Contour's exhaust manifolds onto your Taurus to find this out?Originally posted by Baby SHO@Oct 12 2004, 06:15 PM
the front headder and y pipe from a contour will fit, as for the rear headder....well you need to have someone make a whole new one to fit around our tranny....