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Originally Posted by Z28usmc  How about this for proof: Take an 03 Cobra. It comes with a roots style Eaton M112 from the factory. If you put full boltons, port the SC and tune it within an anch of it's life you MIGHT get to 550 RWHP. However- if you bolt on a twin screw KB or Whipple you ROUTINELY see RWHP #'s 600-800 depending on supporting mods and size of blower. The proff really is in the numbers- you can believe them or not believe them- your choice.
Manufacturers go with the HEaton because it's FAR cheaper to mass produce. You would add 3-5k to the price if you added a twin screw. Most manufacturers shy away from that kind of hike for fear of losing customers. |
The lingenfelter zr1 is making 740 wheel with the stock TVS. This matches or exceeds larger whipple blowers on ford gts and gt500s. That's why I am questioning twin screw superiority. In addition, I don't see why ford would have cared about an extra $3-5k when building their ultimate super car back before the tvs generation was available.