StrictlyCustom
New member
Thanks for the info, I will look into removing the tumblers
Possible 1.4T BPV upgrade coming soon!
- Thread starter BNRacing
- Start date
sx sonic
New member
no problem. my knowledge is free to all lol (although i wont share others intellectual propert)y someone said that "Vermont Tuners" has a thing about it on their website and provided a link. idk if it works because when i clicked on the link i never found anything related, but i was on a smart phone so you may be able to check it out on a computer.
also i feel i must mention that this WILL void your warranty if discovered and there is the possibilty of damaging the engine if done wrong. mainly by ingestion of plastic particles left over from grinding out the tumblers, among some other things that "Could" potentially happen.
that said i expect my car to last 200k miles even with the mods and demand not only performance but also fuel economy, throttle response, and reliability and feel none of that has been lost with the mods i performed.
i feel obligated to inform you of risks and am not responsible for whatever outcome happens. so just research and decide if its something you would like to pursue, as i've said this mod really perked up the topend
-tyler
also i feel i must mention that this WILL void your warranty if discovered and there is the possibilty of damaging the engine if done wrong. mainly by ingestion of plastic particles left over from grinding out the tumblers, among some other things that "Could" potentially happen.
that said i expect my car to last 200k miles even with the mods and demand not only performance but also fuel economy, throttle response, and reliability and feel none of that has been lost with the mods i performed.
i feel obligated to inform you of risks and am not responsible for whatever outcome happens. so just research and decide if its something you would like to pursue, as i've said this mod really perked up the topend
-tyler
laborsmith
New member
Vermont Tuning was promoting the idea as part of one of their stages in tuning. I just went over there and their redesigned (don't know when that occured as its been a while) web site does not seem to have it. The reason I went over there was to find their reworked Garrett MZGT1446MZGL turbo upgrade that has sparked some discussion on CruzeTalk and could not find it either.
Laborsmith
Laborsmith
StrictlyCustom
New member
laborsmith
New member
It is their Stage 1 that seemed to prompt the idea. Brian did tell CruzeTalk readers how to do it on their own.
I don't know how I missed that page. It also looks like he is using a different handheld. It seems he used to use EFILive.
Laborsmith
I don't know how I missed that page. It also looks like he is using a different handheld. It seems he used to use EFILive.
Laborsmith
StrictlyCustom
New member
I'm all about doing/fixing things myself if I'm able too, if not I have people to assist. I will do further research on the "DIY Stage 1" 
1967stella
New member
i was looking into the cruise forum and noticed something i hadn't heard about before. a "hybrid BOV" takes half of the air and recirculates it to keep the ECU happy and vents the rest. if anybody "BNR or Vince" can shed some light into that i think it would be something that MANY people would be interested in. Myself included
Eric Smit
Enforcer
My buddy has one on his Speed3. Turbonetics.
http://www.turboneticsinc.com/duo35_polished
-Eric Smit
http://www.turboneticsinc.com/duo35_polished
-Eric Smit
OmgNoWai
New member
I know everyone here wants the psssshhh sound form their car but having a recirculation BOV is better for performance. It redirects air after the TB has closed into the intake chamber.
If you have a bov it just releases it into the atmosphere and you loose the air your car compressed in the first place.
BUT! A hybrid BOV would be cool
If you have a bov it just releases it into the atmosphere and you loose the air your car compressed in the first place.
BUT! A hybrid BOV would be cool
turbo
New member
Having just installed a cold air intake on my car, it makes one helluva loud blow off-type sound when I let off the throttle. I guess this is the BBV everybody refers to? What would the difference be with a BOV? I can't say I really feel like I need more sound out of my turbo; it already sounds amazing with the short ram intake.
-Dan
-Dan
ThatTmoGuy
New member
people are looking to get that much louder high pitched sound almost like a loud scream. I'm happy with the sound a simple intake adds but i would be lying if i said i wouldnt want it to be louder
sx sonic
New member
You should google it, you can find some very informative articles there..
In short both bypass excess pressure away from the compressor side when the throttle closes to prevent turbo damage. When the turbo is making boost and then the throttle is suddenly closed the compressor will momentarily keep spinning at high speed and with the throttle closed this extra air has no where to go but back towards the comprssor (away from engine). Which trys to stall the compressor, whcih is very bad.
The bypass valve (BPV) or blowoff valve prevent compressor stall or damage by venting this pressure spike when the throttle closes.. they peerform the same function but achieve it thru slightly different means.
Bypass valves (BPV) are most common and almost always used on factory cars. The BPV is often integral to the turbo assembly (ours is). It functions by allowing the compressed air to recirculate back in front of the turbo (basically the ram pipe area) effectively preventing any more air to be compressor/boost until the throttle opens.
BPV are quieter, often more compact, do not mess with airflow sensors as much, since the air that the ecm sees stays in the intake it allows for easier ecm programming.
Blow off valves (BOV) just dump the pressure spike into the atmospher/engine bay. This results in a louder pssstt sound and most aftermarket BOVs are designed to enhance the sound. They are simpler and require less plumbing, louder, since they dump "measured" air out of the intake tract more specialized programming must be used to ensure proper air/fuell mixtures whenever it opens.
That's a basic run down, I recommend you do alil online searching for a more technical and concise explanation but I hope this helps in the meantime
-tyler
In short both bypass excess pressure away from the compressor side when the throttle closes to prevent turbo damage. When the turbo is making boost and then the throttle is suddenly closed the compressor will momentarily keep spinning at high speed and with the throttle closed this extra air has no where to go but back towards the comprssor (away from engine). Which trys to stall the compressor, whcih is very bad.
The bypass valve (BPV) or blowoff valve prevent compressor stall or damage by venting this pressure spike when the throttle closes.. they peerform the same function but achieve it thru slightly different means.
Bypass valves (BPV) are most common and almost always used on factory cars. The BPV is often integral to the turbo assembly (ours is). It functions by allowing the compressed air to recirculate back in front of the turbo (basically the ram pipe area) effectively preventing any more air to be compressor/boost until the throttle opens.
BPV are quieter, often more compact, do not mess with airflow sensors as much, since the air that the ecm sees stays in the intake it allows for easier ecm programming.
Blow off valves (BOV) just dump the pressure spike into the atmospher/engine bay. This results in a louder pssstt sound and most aftermarket BOVs are designed to enhance the sound. They are simpler and require less plumbing, louder, since they dump "measured" air out of the intake tract more specialized programming must be used to ensure proper air/fuell mixtures whenever it opens.
That's a basic run down, I recommend you do alil online searching for a more technical and concise explanation but I hope this helps in the meantime
-tyler
1967stella
New member
So can we get any info such as did u figure out how to make it work and are just waiting on price from vendor, and although its understandable not to post est. price but could u give us an idea of what the kit will include
1967stella
New member
Dont get ur panties in a bunch.. Everyone on here keeps asking about price or availability.. I dont care about that i was simply trying to find out how much is going to be replaced.. Not any specifics..
rdss
Junior Member
Nice, panties in a bunch...... Nice rebutle for asking questions to something that already had a pretty self explanatory answer/reply stating there is no info available at this time and none will be passed until it is 110% complete. I didn't see anything that left me with a question about something that no answers will be given on...... So, either wait on the product to be release or pull your bunched up panties out and be a trend setter like Eric, order the parts needed and figure out an option on your own.
