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#1 |
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Do you know the reason why the 4 cylinders Ecotec engine is penalized so much, in minimum weight VS all others 4 cylinders?
AA/AF: Minimum weight: GM Ecotec, 2,050 pounds, all others 1,750 pounds. BB/AF: Minimum weight: GM Ecotec, 2,350 pounds, all others, 2,050 pounds. |
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#2 |
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I also see in the turbocharged paragraph that the size is limited at 68 mm for the Ecotec and limited to 74 mm to all others 4 cylinders 4 valves...
This engine get a lot of restrictions for some reasons...
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#3 |
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Hi Charles, I don't have an "official" answer but remember that those classes grew out of the old NOPI/NHRA Sport Compact racing series.
From what I understand, the Ecotec engine dominated every class and probably helped kill the series. I imagine NHRA made "parity adjustments" to level the Ecotec with other combinations. It would be similar to how a FSS/SM Mustang would need a bigger pulley than a COPO or Drag Pak even though it's running in Comp. |
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#4 | |
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I didn't have any kind of interest for that serie at that time. Thanks, I appreciate your input. Keep on,
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AAF/S double "A" fun/stock Last edited by Charles Stewart; 06-20-2024 at 10:20 AM. |
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#5 | |
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Thanks again for your support,
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