Got it, and I was told by a few that it should work fine with Vortech supercharger applications, can anyone confirm that as my tuner told me it might not work properly given its a Turbo BOV. Ideas?
Ill have to install it in a few hours so comments would be appreciated.
I have no definitive answer for you but I do have two question that may help.
1. How would the BOV know that the boost it is seeing is produced by
Turbos?
2. How did you resolve the injector size problem? As I remember your
tuner said you needed to junk the 60# for 42#.
I have no definitive answer for you but I do have two question that may help.
1. How would the BOV know that the boost it is seeing is produced by
Turbos?
2. How did you resolve the injector size problem? As I remember your
tuner said you needed to junk the 60# for 42#.
BJK
1- The difference I am concerned about is not under WOT, but in idle and cruise, a turbocharger would need LOAD to get the turbo spooling, in a few cars, you can drive at 4000RPM with VERY VERY little boost, and at 4000RPM with full boost depending on the throttle. With a supercharger I guess there isnt anything you can do about it, 4000RPM is 4000RPM whether full throttle or partial given the SC is directly connected to the engine, and will produce power by RPM, which means at partial throttle high-rpm the BOV has to dump excess air outside, again MAYBE. But in general thats the main reason for asking.
2- I did work out the tune, the car is better now, not SOO much better but noticeably, I travelled and we had very bad weather before that so I did not have the chance to fine tune it, which Ill do in the meanwhile, thankx for your concern, still I don't think the car would run as perfect as one with smaller injectors, in this case 48 to 50.
Professor Perry (C6Dude) previously used the same HKS unit on his ProCharger setup (currently a Turbosmart BOV), give him a holler...his knowledge & experience I trust!!! http://forums.corvetteforum.com/show...hlight=hks+ssq
Professor Perry (C6Dude) previously used the same HKS unit on his ProCharger setup (currently a Turbosmart BOV), give him a holler...his knowledge & experience I trust!!! http://forums.corvetteforum.com/show...hlight=hks+ssq
I was told by him that its fine, and thats the only reason why I bought it, but I wanted to make sure
I was told by him that its fine, and thats the only reason why I bought it, but I wanted to make sure
Good stuff. I recall talking to Brian at ICS, he uses the HKS SSQV on his ProCharger C5Z and very happy with it. On my previous ProCharger setup I used the Vortech Race Valve, during light-moderate throttle I had fluttering issues, it required some adjustment on the stop nut (top of the valve) to eliminate this. The HKS unit was my second choice.
The BY_PASS valve that comes with the Procharger kit is normally open until the vacuum reachs about 2psi. This is to reduce the amount of air the engine sees at lower RPMs and loads.
A BOV is normally closed until the set pressure is acheived and then it opens to bleed excess air to limit the maximum pressure.
Boost on a supercharger is a function of the pulley and supercharger gear ratio. Boost on a turbo is a fuction of turbo capacity, engine RPM, and exhaust gas flow and that is why you need a BOV to limit the boost on a unit that has higher capacity than you want.
So what type of BOV is everyone using on supercharger applications and does it function to open on boost or close on boost?
__________________
2005 VR, Z-51, Six Speed, Procharger D1 @ 8 psi, piller mount vacuum/boost/wide band gages, LPE hood, Z06 Rear fenders, 160 deg T/S, LG Motorsport headers w/cats & X-Pipe, Magnaflow axle back exhaust, Chrome Z06 Wheels, Z06 Brake Upgrade w/SS lines, Full VR GM Spoiler, KP BAP w/Racetronix wiring harness, DPE Procharger 2 minute oil drain kit, Michelin Runflat Pilot Sport 345/30/19 Rear, 275/35/18 front, Halltech CAI, Tuned and Dyno'd with HPT at 535 rwhp 489 rwt by LG Motorsports
Last edited by dgcarver; 01-22-2008 at 12:16 AM.
Reason: Added Sig
The BY_PASS valve that comes with the Procharger kit is normally open until the vacuum reachs about 2psi. This is to reduce the amount of air the engine sees at lower RPMs and loads.
A BOV is normally closed until the set pressure is acheived and then it opens to bleed excess air to limit the maximum pressure.
Boost on a supercharger is a function of the pulley and supercharger gear ratio. Boost on a turbo is a fuction of turbo capacity, engine RPM, and exhaust gas flow and that is why you need a BOV to limit the boost on a unit that has higher capacity than you want.
So what type of BOV is everyone using on supercharger applications and does it function to open on boost or close on boost?
thats a WASTEGATE, all BOV's open to bleed boost when you lift, to prevent that air that gets trapped as the throttle body closes from flowing back to the turbo & causing turbo surge - which apparently is bad for the turbo headunit, and slows you down as well (it sounds cool though).
but again a BOV does not stay open until boost reaches 2PSI, it would be hard for people running low boost like me (4PSI) to build boost if that thing doesnt close, it might have a function of being partially open at cruise to release excess air though.
Good stuff. I recall talking to Brian at ICS, he uses the HKS SSQV on his ProCharger C5Z and very happy with it. On my previous ProCharger setup I used the Vortech Race Valve, during light-moderate throttle I had fluttering issues, it required some adjustment on the stop nut (top of the valve) to eliminate this. The HKS unit was my second choice.
Yes the HKS will work fine on car. Its designed to remain completely closed under idle and will hold to 30+psi without leaking.
thats what im using on my TT car now. (Not a vette ). And i also have a friend running the HKS on his built/procharged LS1
__________________
FASTER & FASTER UNTIL THE THRILL OF SPEED OVERCOMES THE FEAR OF DEATH...
"The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants."
Last edited by Drag_Knight; 01-22-2008 at 06:06 PM.
Corvette Store
HKS SSQV BOV help - urgent
(C6Dude) previously used the same HKS unit on his ProCharger setup (currently a Turbosmart BOV), give him a holler...his knowledge & experience I trust!!!
I recall talking to Brian at ICS, he uses the HKS SSQV on his ProCharger C5Z and very happy with it. On my previous ProCharger setup I used the Vortech Race Valve, during light-moderate throttle I had fluttering issues, it required some adjustment on the stop nut (top of the valve) to eliminate this. The HKS unit was my second choice.
). And i also have a friend running the HKS on his built/procharged LS1
