Well found this on a site that makes rebuild kits and upgrades for superchargers.

http://www.928motorsports.com/parts/...mitervalve.php

So basically bleeds off the boost past a certain rpm for supercharged cars.

So could run a 14 psi and have it bleed off after 7 psi and hold that 7 probably from like 4-5k-till redline for a MUCH broader powerband.

Will that really work with our cars and these superchargers? If so that is awesome for all the centri sc's.

 

In theory it's good, but then again what seems good to begin with might have some backlashes. Would love to hear some peoples comments on this though!

 

Better to build an inlet restrictor plate for your desired flow (HP) level.

 

So what would be the issues with this then?

 

Nothing. Just less efficient. Why compress the air if you are going to be releasing it? Just tune the intake size for your desired flow.

 

So how would you go about that? Is that easier than just welding that flange on?
Haven't seen anyone that has done something similar to this. Would make the powerband soo much better especially for the 5-7 or even 10 psi setups!

 

I was considering doing it, but decided I will just pony up for the injectors/clutch.

My thread and theoretical ramblings on the restrictor plate. It would go before the inlet of the supercharger inside the intake tract.

https://www.s2ki.com/forums/index.php?showtopic=822030

 

Ok yeah that is an interesting way to do it. Just seems simpler to just weld the bung on and be done idk.
I also am ponying up the cash for injectors and aem ems etc. Tune is on monday. Doing 7 psi only for now till I get my clutch in and retune.
I just think it would be nice to do a 14-15 psi pulley but have it limited to 12 psi. Should give me 12 or so from 7-redline I would think instead of just at redline. And more boost all through out rpm range.

 

Do it Modiction. Yes it should work as long as its a good piece that is consistent. Your tuning around this so it has to be. My impression is its more reliable then a wast gate so you probably will have good success with it. I'd try it myself but I have no way to increase injector duty at lower rpm to compensate for the added flow of the smaller pulley.

 

Yeah I really wish I knew about this a couple weeks ago. Getting tuned monday and have the 12 lb pulley already but not clutch. Could have rocked the 12 psi pulley for 7 psi from approximately 5-6k till redline I bet and would have a really nice midrange!