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Re: Need some engine advice and suggestions...
Quote:
Originally Posted by Hart_Rod
I still need to finish the fuel system, but the Suburban has been occupying most of my time. Can you describe the normal operation of the blow off valve. As it stands, as soon as I manually move the throttle it starts opening up and releasing air from the supercharger. When does this stop?
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Suburban looks nice. I will have to check out the build thread.
You need to build boost or pressure in the intake in order for the valve to stay closed. The hose that comes from the intake to the BOV senses pressure or vacuum. Under boost it will close the valve and keep it closed. If there is vacuum in the intake it will open the valve. It appears that the BOV is doing what it is supposed to do. You don't want pressure when you are manually blipping the throttle.
Before you make any adjustments drive the truck and see if how it acts.
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83 C10 Stepside (SOLD, it was a blast!)
383 MASS-FLO EFI/TKO II 600/3.90 Posi 10 bolt
S475 and C4 DM running, fine tuning
turbo= 
Douchebag Racing: Runs Fine all the Time
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