what kind of bypass valves are available?
03-18-2008, 02:29 AM
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what kind of bypass valves are available?
it has been mentioned that the bypass on the new ss are somewhat quiet... what kind of bypass valves will bolt straight up? i know i random queston... but still i'm wondering?
also being that it is infact now boosted via turbo... any idea what kind of aftermarket parts such as intake and turbo timers might be soon available/ available currently?
-racecrank (waiting to return state-side from a marine deployment to rush straight to my chevy dealer to get me my imerial blue) CANT 'EFFING WAIT!!!
U.S.M.C
LCPL BIERMAN
also being that it is infact now boosted via turbo... any idea what kind of aftermarket parts such as intake and turbo timers might be soon available/ available currently?
-racecrank (waiting to return state-side from a marine deployment to rush straight to my chevy dealer to get me my imerial blue) CANT 'EFFING WAIT!!!
U.S.M.C
LCPL BIERMAN
03-18-2008, 02:46 AM
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as I was... my bad use of wording...
Borg Warner K04 Turbo... correct? from what i can find here on the fourms. basic things such as BOV's are striaght forward. are they not?
not by anymeans am i an expert... like i said, just excited. as well as everyone.
Borg Warner K04 Turbo... correct? from what i can find here on the fourms. basic things such as BOV's are striaght forward. are they not?
not by anymeans am i an expert... like i said, just excited. as well as everyone.
03-18-2008, 02:50 AM
#8
the new LNF engines have a recirculator instead of a blow off valve. instead of shooting the air into the atmosphere, it sends it back into the intake. now putting a BOV on the new LNF's would actually hurt performance because it would cause the car to run rich
03-18-2008, 02:51 AM
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NO! THE LNF IS ONLY EVER IN THE COBALT!!!!!111 </sarcasm>
of course the hard pipes that are currently out for the LNF may not work as they are intended for RWD... but if you do some custom pipes ($80 ebay kit) you can change over to any aftermarket blowoff/bypass valve you want...
of course the hard pipes that are currently out for the LNF may not work as they are intended for RWD... but if you do some custom pipes ($80 ebay kit) you can change over to any aftermarket blowoff/bypass valve you want...
03-18-2008, 02:53 AM
#10
NO! THE LNF IS ONLY EVER IN THE COBALT!!!!!111 </sarcasm>
of course the hard pipes that are currently out for the LNF may not work as they are intended for RWD... but if you do some custom pipes ($80 ebay kit) you can change over to any aftermarket blowoff/bypass valve you want...
of course the hard pipes that are currently out for the LNF may not work as they are intended for RWD... but if you do some custom pipes ($80 ebay kit) you can change over to any aftermarket blowoff/bypass valve you want...
03-18-2008, 02:57 AM
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turbo setups that require a MAF use bypass valves, its not a sc-only thing...
Last edited by bigworm; 03-18-2008 at 02:57 AM. Reason: Automerged Doublepost
03-18-2008, 02:58 AM
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...no ****...
man im wondering all thats gonna come out. chevy is proud of this new car and im sure manufacters are gonna jump right on as well.
ok now what about the running gear? coilovers, springs, struts, etc.
interior... same as previoius years?
man im wondering all thats gonna come out. chevy is proud of this new car and im sure manufacters are gonna jump right on as well.
ok now what about the running gear? coilovers, springs, struts, etc.
interior... same as previoius years?
03-18-2008, 03:00 AM
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no change, same car, different engine.
03-18-2008, 03:09 AM
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read: "remove the maf"
and that "pppooossh" sound has driven technology as much as **** has done for the internet!
Last edited by bigworm; 03-18-2008 at 03:09 AM. Reason: Automerged Doublepost
03-18-2008, 07:55 PM
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1) Evaporative (EVAP) Emission Purge Solenoid Valve Bolt
(2) EVAP Purge Solenoid Valve
(3) Manifold Absolute Pressure (MAP) Sensor Bolt
(4) MAP Sensor
(5) Fuel Pump Lifter
(6) High Pressure Fuel Pump Gasket
(7) High Pressure Fuel Pump O-Ring
(8) High Pressure Fuel Pump
(9) High Pressure Fuel Pump Bolt
(10) Fuel Feed Line
(11) Fuel Feed Line Bolt
(12) High Pressure Fuel Pump Insulator
(13) High Pressure Fuel Pump Cover
(14) High Pressure Fuel Line
(15) Fuel Injector Insulator
(16) Oil Indicator Tube
(17) Oil Indicator
(18) Intake Manifold Brace
(19) Intake Manifold Brace Stud
(20) Oil Indicator O-Ring
(21) Charger AIR Bypass Tube Clamp
(22) Charger AIR Bypass Tube Assembly
(23) Charger AIR Bypass Valve Tank Assembly Nut
(24) Charger AIR Bypass Valve Tank Assembly, Some Models
(25) Charger AIR Bypass Valve Solenoid Bolt
(26) Charger AIR Bypass Valve Solenoid
(27) Throttle Body Bolt
(28) Throttle Body
(29) Throttle Body Seal
(30) Power Brake Booster Fitting
(31) Intake Manifold
(32) Intake Manifold Gasket
It is called a AIR bypass Valve
03-22-2008, 01:43 PM
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The valve you speak of above is simply an electronic nanny control GM/Bosch put on the motor to control the actual bypass/recirc valve which is molded/integrated into the actual turbo compressor housing. Upgrade the turbo you must upgrade to an aftermarket bov/recirc-bypass valve. The design is simply for cost savings, the bov/bypass should always be on the cold side of the intercooler closest to the throttle body to prevent reversion. The Borg Warner turbo design does it's best to keep the inversion to a minimum but I hear it time to time. The valve pictured above will open the BOV under boost and we in the (Sol/Sky) LNF community remove this all together and route manifold pressure directly to the recirc/bypass valve. All things aside, the nomenclature for a bypass or recirculation valve are one in the same. Even the "bov", they all do the same thing, prevent reversion. The recirculating bov/bypass-valve will return the vented air back before the turbo but after a MAF (if any) so that the air that was metered by the MAF will not be lost, thus causing the rich condition (usually only after a shift) To my knowledge, the LNF bosch ecu platform uses alpha-n to determine fueling under boost, that is it will use both speed density and maf, where as out of boost it will use maf.
To conclude this post, there are no direct bolt on aftermarket bov/bypass for the LNF on the sol/sky platform. There is however a stronger spring available for the stock bypass because it is weak from the factory and will leak under higher boost levels.
let me know if you have any other questions.
To conclude this post, there are no direct bolt on aftermarket bov/bypass for the LNF on the sol/sky platform. There is however a stronger spring available for the stock bypass because it is weak from the factory and will leak under higher boost levels.
let me know if you have any other questions.
03-22-2008, 01:49 PM
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pretty much the new ss should be able to use an after market Diverter Valve probably the same ones they use for DUB's Wish the SS/SC could have some kinda sneeeeezz lol. would sound sick with the SC whine
03-22-2008, 10:24 PM
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BOV's do hurt performance, but in such a minimal way its rarely ever noticed.
(going to use big numbers, even I know that they dont mean **** with the MAF)
(we're going to use a 1:1 ratio)
Basically, Turbo is pushing 100 units of air. MAF senses that, and sees ok, 100 units of air, so we'll need 100 units of fuel.
When your bov releases air into the atmosphere (the pssshhh noise), you just lost say 25 units of air.
So now, when the remaining 75 units of air goes into the engine, now its got 100 units of gasoline.
AKA, you'll bog down.
A Recirculating valve just make that air do a loop, so in your intake stream, you still have 100 units of air. So you will not bog down.
Now hear me out, BOV's will "bog down" your vehicle per say, but with such a mid level project as these are (compared to the big boys of professional drag racing), your not going to notice much at all.
A BOV's sole purpose is not for the "neat" sound they make, but to release the pressure, so your turbochargers compressor wheel will continue to spin freely, vs slowing down by a sudden decrease in air velocity.
If your building a 1000hp+ turbocharged vehicle, and your all about those .001's in your qtr mile. then a recirculating valve would be ideal.
For fun around the streets, a BOV will work nicely.
As for the original poster. The car is new yes. The turbo'd ecotec has been around for some time.
But just because other cars have it, doesnt mean the setup is identical.
You could put a BOV on the car with some modification and some ingenuity, but for a full blown "bolt on" BOV kit, its not likely for awhile.
BOV's are not turbo specific by any means.
The HAHN kit for example is new, and aftermarket. Dont expect to see Blitz(for ex.) making a BOV kit for it.
Use your noggin, or use the internet and look up the general consensus on how to hook up a blow off valve.
However, the only unforeseen error in all of this is since the turbo is ecm controlled. It might not like the fact you have a BOV vs a Recirculating valve.
If thats not the case, then your golden.
(going to use big numbers, even I know that they dont mean **** with the MAF)
(we're going to use a 1:1 ratio)
Basically, Turbo is pushing 100 units of air. MAF senses that, and sees ok, 100 units of air, so we'll need 100 units of fuel.
When your bov releases air into the atmosphere (the pssshhh noise), you just lost say 25 units of air.
So now, when the remaining 75 units of air goes into the engine, now its got 100 units of gasoline.
AKA, you'll bog down.
A Recirculating valve just make that air do a loop, so in your intake stream, you still have 100 units of air. So you will not bog down.
Now hear me out, BOV's will "bog down" your vehicle per say, but with such a mid level project as these are (compared to the big boys of professional drag racing), your not going to notice much at all.
A BOV's sole purpose is not for the "neat" sound they make, but to release the pressure, so your turbochargers compressor wheel will continue to spin freely, vs slowing down by a sudden decrease in air velocity.
If your building a 1000hp+ turbocharged vehicle, and your all about those .001's in your qtr mile. then a recirculating valve would be ideal.
For fun around the streets, a BOV will work nicely.
As for the original poster. The car is new yes. The turbo'd ecotec has been around for some time.
But just because other cars have it, doesnt mean the setup is identical.
You could put a BOV on the car with some modification and some ingenuity, but for a full blown "bolt on" BOV kit, its not likely for awhile.
BOV's are not turbo specific by any means.
The HAHN kit for example is new, and aftermarket. Dont expect to see Blitz(for ex.) making a BOV kit for it.
Use your noggin, or use the internet and look up the general consensus on how to hook up a blow off valve.
However, the only unforeseen error in all of this is since the turbo is ecm controlled. It might not like the fact you have a BOV vs a Recirculating valve.
If thats not the case, then your golden.
