Swirl port SBC heads
From Crankshaft Coalition Wiki
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(added comment in Design Limitations) |
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==Design limitations== | ==Design limitations== | ||
| + | Its not that Swirlies outflow Vortec, its that they burn better and require less timing, generating more net torque. Less total timing = less negative work on the crankshaft as cylinder pressure is building. Up to 4,500 rpm many other heads cannot touch them. Where Vortecs like up to 12-16* of advance right off idle and as much as 32-34* total at high rpm, the Swirlies run best with only 4-6* of timing off-idle and 26-30* at high rpm. | ||
===TBI swirl-inducing vane=== | ===TBI swirl-inducing vane=== | ||
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