Hot rodding the HEI distributor
m (→Disclaimer: Minor text addition) |
m (→Holley idle transfer slot: change image) |
||
| Line 156: | Line 156: | ||
The drawing below shows the transition slot as seen with the carb held upside down. The drawing on the left shows an overexposed transition slot. Baseline the throttle blades to give a transfer slot that looks like the image below, right (approximately as long as it is wide, or about 0.020", up to 0.040"): | The drawing below shows the transition slot as seen with the carb held upside down. The drawing on the left shows an overexposed transition slot. Baseline the throttle blades to give a transfer slot that looks like the image below, right (approximately as long as it is wide, or about 0.020", up to 0.040"): | ||
| − | [[File:Holley | + | [[File:Holley t-fer slot.jpg]] <br style="clear:both"/> |
From this point the idle speed can be increased to the point where the transfer slot becomes over exposed. If that occurs, the secondary throttle blades may need to be opened slightly to allow more idle air to be introduced into the engine. If the throttle blades are open too far, a poor idle and off-idle transition can be the result. Depending on the cam specs, adding initial timing in addition to or instead of tipping the secondary throttle blades open more may give the best results. | From this point the idle speed can be increased to the point where the transfer slot becomes over exposed. If that occurs, the secondary throttle blades may need to be opened slightly to allow more idle air to be introduced into the engine. If the throttle blades are open too far, a poor idle and off-idle transition can be the result. Depending on the cam specs, adding initial timing in addition to or instead of tipping the secondary throttle blades open more may give the best results. | ||
Your Privacy Choices