erk1983 Posted November 12, 2005 Report Share Posted November 12, 2005 i installed my relief valve yesterday and have been trying to tune it correctly since then.. it is a single piston non horn type without vaccum lines.... it is a greddy relief valve... i have been playing with it and cannot find where it should be.. does anyone have a blowoff similar to this that could give me some tips? Link to comment Share on other sites More sharing options...
JHEIII874T5M Posted November 12, 2005 Report Share Posted November 12, 2005 which greddy model is it? Link to comment Share on other sites More sharing options...
Guest Guest Posted November 12, 2005 Report Share Posted November 12, 2005 greddy relief valve! it is the only one on greddy.com relief valve under turbo accesories, then relief valve Link to comment Share on other sites More sharing options...
JHEIII874T5M Posted November 12, 2005 Report Share Posted November 12, 2005 Ah, well I personally have never used a unit such as that. What do you seem to be having a problem with? Is the car still spiking? Link to comment Share on other sites More sharing options...
erk1983 Posted November 12, 2005 Author Report Share Posted November 12, 2005 yes it is still spiking and i cant hear any blowoff when i let off the throttle!!i have been driving around town all day just making small adjustments and cant seem to find where it should be!!!do you have any suggestions? Link to comment Share on other sites More sharing options...
JHEIII874T5M Posted November 12, 2005 Report Share Posted November 12, 2005 yes it is still spiking and i cant hear any blowoff when i let off the throttle!!i have been driving around town all day just making small adjustments and cant seem to find where it should be!!!do you have any suggestions?Well, after reading the site, please correct me if I'm wrong but:Use the GReddy Relief Valve as a secondary boost safety device. By adjusting the set screw you can control the release point (from .08 kg/mm2 to 2.0 kg/mm2),I interpret that it is used to control the boost level, not intended to release any air when you let off the throttle. It should only control boost levels. Do you have any other form of boost control aside from that release valve?What exactly are all your modifications?I take it this is the right product Link to comment Share on other sites More sharing options...
erk1983 Posted November 12, 2005 Author Report Share Posted November 12, 2005 yes it is the correct product.. i also have a rick gillis boost controller... it is set at about 13 psi.... i also ripped off my airbox and put a k&n cone filter... that is all... Link to comment Share on other sites More sharing options...
Volvoson Posted November 12, 2005 Report Share Posted November 12, 2005 My thoughts on that would be:It vents boost if it exceeds X psi, since it's a secondary boost safety device, not a blow off valve or a boost controller.You could have it hooked up wrong, but who knows? Link to comment Share on other sites More sharing options...
the underlørd Posted November 12, 2005 Report Share Posted November 12, 2005 relief valve? did i hear valves being talked about? now THAT is a ASME Section 1 Power Boiler Relief Valve, Model 1811KB-22. please feel free and contact me for a quotation for all your Industrial Relief Valve Needs. Link to comment Share on other sites More sharing options...
JHEIII874T5M Posted November 13, 2005 Report Share Posted November 13, 2005 Spiking is something one must learn to live with on these turbos, our wastegate size is rather pathetic, not to mention the fact that it is internal... How badly is it spiking?Kevin... sorry I can't join you in going off topic on this thread, I will join the next one :D Link to comment Share on other sites More sharing options...
erk1983 Posted November 13, 2005 Author Report Share Posted November 13, 2005 thank you for your input i guess i will have to purchase a BLOWOFF VALVE , since that is not what i have....does anyone have any suggestions on what type of blowoff to use? i have looked at baileys motosports dump valves but i wonder if there is anything in the u.s. that would be a little cheaper? Link to comment Share on other sites More sharing options...
erk1983 Posted November 13, 2005 Author Report Share Posted November 13, 2005 hey vs underlord .. where should my relief valve be located and what exactly should i be looking to set this at? right now it is on my top intercooler pipe ... since you know a lot about relief valves what exactly does this do for me? Link to comment Share on other sites More sharing options...
TorqueSteer Posted November 13, 2005 Report Share Posted November 13, 2005 You need a blow off valve, so why are you bothering at all with this "relief valve." A good one to buy is the HKS SSQV if you like the sound, you can also try a MONZA, has the same design as the HKS but is considerably cheaper. Link to comment Share on other sites More sharing options...
Slater Posted November 13, 2005 Report Share Posted November 13, 2005 That is a pressure relief valve, not a blow off valve.It is designed to prevent overboosting to save your engine. You set it to the MAX psi you ever want the engine to see, say 20psi. Then if it does it's job it should do NOTHING until the boost hits 20psi, then it will just open enough to vent the excess pressure.It's a safety device in case a hose pops off or some other disaster happens where your boost goes out of control.You still need a blow off valve. The pressure relief valve is totally seperate and works completely different. Link to comment Share on other sites More sharing options...
Volvoson Posted November 13, 2005 Report Share Posted November 13, 2005 That is a pressure relief valve, not a blow off valve.It is designed to prevent overboosting to save your engine. You set it to the MAX psi you ever want the engine to see, say 20psi. Then if it does it's job it should do NOTHING until the boost hits 20psi, then it will just open enough to vent the excess pressure.It's a safety device in case a hose pops off or some other disaster happens where your boost goes out of control.You still need a blow off valve. The pressure relief valve is totally seperate and works completely different.Yay, Greg and I are on the same page! :D Link to comment Share on other sites More sharing options...
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