Thinking out loud - IC valve thing

[Marky]

Just a thought, but my brain isnt good at doing stuff so asking a second opinion

I\'ve got another VF27 going on in place of the primary once I get motivated, so I\'ll have a spare "port" on the comp cover (which is normally for the secondary BOV) which I was just going to block off, but had a thought - if I ran a check valve (one way valve) from the secondary to primary, instead of the stock recirc valve back to intake - whats the thoughts on how it would behave?

Thinking is that when secondary starts to get pre-spooled (like that period where normally it gets dumped back to the intake), it would start to dump anything excess (more than the primary is making) instead into the primary\'s "stream" - and sorta kinda help with smoothing out the VOD thing? (Idea being the secondary tract is kept at full boost before IC valve opens, rather than being dumped outright with turbo up to speed)

Something anyone has tried before? I\'ve seen some dude in aussie tried it with the IC valve itself to some success, and I\'m going to probably just do it anyway, \'cause well I am not a smart man - but thought I\'d throw it out there

[telemekas]

That will work OK.

The stack/port on the 2nd turbos is 16mm dia.

Pop in side port before the one way valve for Line 22 to the DPS.

I have done this using a 12mm one way check valve.

This is the same as idea as the reed valve in the Supra TT sequential system.

Therefore no dumping to the intake.The SPRV is removed