Anti-lag - has anyone here did this with a Porsche flat six?

[midnight911]

I've run into a Youtube content that discusses installing anti-lag on a naturally aspirated engine. This is not a turbo anti-lag like the one seen on rally cars, a launch control, nor a quick shift popular in motorcycle applications.

The idea is to provide less vacuum (closer to atmospheric pressure) in the intake manifold when throttle closes at gear shifts, so that once you get back on gas you have immediate and responsive power pick up.

It requires a hardware mechanism to reduce vacuum post throttle body in the intake (if I understand the Youtube content correctly, a blow off valve used for turbo to regulate air supplied into the intake) when throttle is closed and engine management system (DME) that allows appropriate fuel delivery.

The Youtube content seems to achieve dramatic power characteristic change, even suggesting possible excessive stress to drive train.

Has anyone here done or seen it done on a naturally aspirated Porsche 911 engine?

[GH85Carrera]

I always heal-toe the throttle on downshifts to rev match. The 3.2 Carrera engine is not some high strung engine, and I suspect that thing is 100% snake oil for our 3.2 engines unless you have super high compression pistons, dual plugs, monster cams, and much bigger displacement, and drive at 100% throttle all the time.

[Bill Douglas]

On the SC I do a partial lift off between gears. So in other words when I'm going for it I don't lift my foot off the gas completely. Just enough to drop the revs by 1,000rpm or so. This works well with the CIS.