Ok now that yur back on line and we're friends, Here's what I'd like to see;
I need you to design an exhaust blow-off valve.
I want to bolt a 3"x ~18 straight tube on the back of my TTIs, and on the end of it shall be the blow-off valve.
Just ahead of it on the engine side, on each collector extension tube, will be a small-diameter take off, and they will likely come together in a Y, and make a single exhaust to somewhere out back thru a tiny glass-pack. Or maybe a pair, to the outboard side, terminating near the rear tires..
But the blow-offs will be un-muffled, with maybe turn-downs.
Here's how I want it to work;
Normally, on the primaries, the blow-offs will be closed, and the exhaust will pass thru the small system.
But when I nail it, the blow-offs will automatically POP open and shazzam! we have open headers. But the instant I lift, those valves have to slam shut again and this has to be as good as instantaneous, with no help from me.
Now;
under Part throttle, they need to be tuneable, so that they open proportionally, loc-step with the secondaries.
No electrics!
And, They have to be serviceable
And, after all that, I still need them to be affordable.
lol.
