So the snail won the drag race...
Sure can, oh great bloviating one, first of all, bypassing this valve will in no way DRAMATICALLY increase performance as you so demonstrably claim . When bypassing the valve increases initial acceleration or reduces hesitation etc, it simply means that the advance supplied by the mechanical advance is insufficient and the vacuum can engages at a very low vacuum . The vacuum advance should never be active upon acceleration if one is trying to get the maximum performance from an engine . It should also NOT be active at idle contrary to one grossly inaccurate "paper" that has been floating around the internet for a while now.
Also, the harder the accelerator pedal is depressed, the LESS vacuum the engine has to pull on the vacuum can . In general, if one floors the accelerator pedal from a stop, this is when the engine will have the LOWEST amount of vacuum which means that other than idle if the the vacuum can is connected to ported vacuum, it will be the point at which the vacuum can will be the LEAST likely to add any advance, and as the rpm increases, so does the amount of engine vacuum and subsequently the likelihood that the vacuum can will be activated, and nothing you say is going to change this FACT or the physics that cause this.
Also, not all vacuum cans are designed to operate over the same vacuum range, and some aftermarket vacuum cans are designed to be adjustable so they can be fine TUNED for a particular app.
If one wants to see what vacuum range their vacuum can operates over, all they need to do is connect a vacuum pump with a gauge and connect it to the vacuum can and watch the arm and points plate move as they apply vacuum . If they do this with the engine running, they can actually note how many degrees the can advances the timing at different vacuum levels . With this information, they can even plot a timing graph if they want . They can then install a vacuum gauge in their car and "T" it into the distributor vacuum line then drive their car and see when the vacuum can is active . This will also help to eliminate any "placebo" affect the driver may have from thinking their car has 50 more hp simply because they read on the internet that some clueless person said it would if they bypassed the vacuum switch.
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(Or if you'd rather keep rattling your keyboard, you can maybe tell us all why bypassing the OSAC valve—which delays vacuum to the distributor—improves part-throttle acceleration so dramatically.
Sure can, oh great bloviating one, first of all, bypassing this valve will in no way DRAMATICALLY increase performance as you so demonstrably claim . When bypassing the valve increases initial acceleration or reduces hesitation etc, it simply means that the advance supplied by the mechanical advance is insufficient and the vacuum can engages at a very low vacuum . The vacuum advance should never be active upon acceleration if one is trying to get the maximum performance from an engine . It should also NOT be active at idle contrary to one grossly inaccurate "paper" that has been floating around the internet for a while now.
Also, the harder the accelerator pedal is depressed, the LESS vacuum the engine has to pull on the vacuum can . In general, if one floors the accelerator pedal from a stop, this is when the engine will have the LOWEST amount of vacuum which means that other than idle if the the vacuum can is connected to ported vacuum, it will be the point at which the vacuum can will be the LEAST likely to add any advance, and as the rpm increases, so does the amount of engine vacuum and subsequently the likelihood that the vacuum can will be activated, and nothing you say is going to change this FACT or the physics that cause this.
Also, not all vacuum cans are designed to operate over the same vacuum range, and some aftermarket vacuum cans are designed to be adjustable so they can be fine TUNED for a particular app.
If one wants to see what vacuum range their vacuum can operates over, all they need to do is connect a vacuum pump with a gauge and connect it to the vacuum can and watch the arm and points plate move as they apply vacuum . If they do this with the engine running, they can actually note how many degrees the can advances the timing at different vacuum levels . With this information, they can even plot a timing graph if they want . They can then install a vacuum gauge in their car and "T" it into the distributor vacuum line then drive their car and see when the vacuum can is active . This will also help to eliminate any "placebo" affect the driver may have from thinking their car has 50 more hp simply because they read on the internet that some clueless person said it would if they bypassed the vacuum switch.
.