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51 ida's
Was wondering if anyone has tried this modification and if its worth it?
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Gary,
Thats where I first read about the 51ida's. Was just wondering how well the work on an FE engine compared to say the 48's. Is there any loss of bottom torque? |
Go for the 58's.
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Engine capacity in combination with cam/heads/compression etc determines venturi size.
Throttle butterfly size should be 20% larger than venturi. In the ideal world, the inlet tract should be the size of the inlet valve. The venturi is then about 85% of the barrel size, the valve throat is also about 85% of the valve diameter. The 58s would allow a venturi of about 46-47mm, if your engine needs this much. I've seen quad 58 DCOEs with 47mm venturis on a 427 race engine. |
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