I run a standard HKS 40mm on my T-Type mounted on the crossover. It is controlled by an in console "air regulator." In my quest to attempt to improve my spool up with this big Stealth turbo (it goes from vacuum to boost fairly quick, but spools slowly after that), I had an idea today. I think I have seen this idea or similar, but thought this might work: the bottom fitting is plumbed to direct boost and this lifts the valve off it's seat while working against the diaphragm and 15 psi spring; the top fitting is the regulated boost line and by varying the amounts of boost working against the top of the diaphragm you can raise the boost past the point that just the 15 pound spring would allow. But, you already knew that! So, my question is, if I plumb a good ole "Grainger valve" set up into the direct boost port (bottom) and set it to open at about 15-18 psi, this will make sure that the valve isn't starting it's lift off the seat prior to anything but that 15-18 psi, right? Possibly resulting in quicker spool up?!?!?
Thoughts? Thanks,
Thoughts? Thanks,