charge pipe ans bov
Hey I got a 09 cobalt ss and right now I got the zzp down pipe catless and the zzp pcm and straight piped and and kn intake .... I am trying to see what mods to do next I was thinking about charge pipes with a bov but would like some info if anyone has any
thers like 2130893459035820138913 threads on the bov charge pipe topic... do some research on the forum.
all you need to really know if that your spending a lot of extra money for something that has no benefit on the stock turbo. If your doing a zzp big turbo setup its a different story but most are going with the zfr now days.
to make it work properly you need a maf relocate to the lower charge pipe, the maf wiring extension, a block off plate for the maf on the intake, the bov flange, the bov itself and someone to weld the flange on and a vacuum line to connect it to the direct pressure source on the manifold.
anyways with that said unless you get a tune for that you will have issues. DO NOT let ANYONE try to convince you that you can run a bov and tune around it. thats false information and you cannot tune around metered air exiting from the system.
the best thing to do is get a forge bpv(not the atmospheric one) and see if that suits your needs for a louder pshhhh. if it doesnt you can sell it and do your bov.
all you need to really know if that your spending a lot of extra money for something that has no benefit on the stock turbo. If your doing a zzp big turbo setup its a different story but most are going with the zfr now days.
to make it work properly you need a maf relocate to the lower charge pipe, the maf wiring extension, a block off plate for the maf on the intake, the bov flange, the bov itself and someone to weld the flange on and a vacuum line to connect it to the direct pressure source on the manifold.
anyways with that said unless you get a tune for that you will have issues. DO NOT let ANYONE try to convince you that you can run a bov and tune around it. thats false information and you cannot tune around metered air exiting from the system.
the best thing to do is get a forge bpv(not the atmospheric one) and see if that suits your needs for a louder pshhhh. if it doesnt you can sell it and do your bov.
its the exact same as the bov situation. they will cause rich spikes between shifts or even if tuned for will still have a the tables appear to go rich. your venting unmetered air.
i ran one on my personal car to toy around around with it. you can some what tune around it but you still dont solve the actual issue which even though the car drives fine still is underneath all the tables.
if your running a maf relocate with an efr turbo and a forge or boomba vta valve it will be ideal since its right on the turbo vs moving the bov far away. the boomba valve is awesome and is tested well beyond what anyone will ever push in these cars. 65psi lol. helps save some plumbing. my old tial location was pretty sweet though with the location of my old precision turbo but the smaller valves can be bolts on easier.
none the less anything vta on these cars needs to have a maf relocation.
i ran one on my personal car to toy around around with it. you can some what tune around it but you still dont solve the actual issue which even though the car drives fine still is underneath all the tables.
if your running a maf relocate with an efr turbo and a forge or boomba vta valve it will be ideal since its right on the turbo vs moving the bov far away. the boomba valve is awesome and is tested well beyond what anyone will ever push in these cars. 65psi lol. helps save some plumbing. my old tial location was pretty sweet though with the location of my old precision turbo but the smaller valves can be bolts on easier.
none the less anything vta on these cars needs to have a maf relocation.
driveability issues mostly dumping fuel inbetween shifts when it shouldnt be and all that stuff. the lnf should not be ran rich. also your venting all the metered air and causing your ecu to do things to compensate for the air being gone.
any of the pipes will worth for you. zzp werks injen etc etc. all depends what you want. anyone will put a bov flange on for you as well if you want to go that route but most of the piping companies come without a bov flange.
i work for werks.... and im saying this because it seems to be a huge complaint on this forum but our charge pipe lower fits the best hands down as far as actual fitment and sensor placement goes. i have installed all of them and am not biased as the others make a nice product as well.
werks zzp hahn all go around the motor.... injen goes over. the motor. theres no real benefit to either one except theres less piping with the over the motor pipes.
any of the pipes will worth for you. zzp werks injen etc etc. all depends what you want. anyone will put a bov flange on for you as well if you want to go that route but most of the piping companies come without a bov flange.
i work for werks.... and im saying this because it seems to be a huge complaint on this forum but our charge pipe lower fits the best hands down as far as actual fitment and sensor placement goes. i have installed all of them and am not biased as the others make a nice product as well.
werks zzp hahn all go around the motor.... injen goes over. the motor. theres no real benefit to either one except theres less piping with the over the motor pipes.
Omiotek pretty much covered all of it. When I was running a BOV setup I ran into the worst issues when I was going WOT, it would misfire like crazy on upshifts and fall on its face. I love BOVs but they aren't worth it on these cars.
Thanks for the advice. But I have not noticed any negative symptoms with my Forge VTA. It goes rich for a moment in between hard shifts only, not light/regular. But really besides a tiny bit of extra fuel consumption im not seeing any misfires, no KR, no codes, and haven't even had to re-grease it yet. Working flawlessly in the -24 weather we're having, it just gets louder in the cold(which is great, stustustustu) also exhibits a loud exhaust POP every now and then on some shifts. Been on for 9 months and 20,000km. If I have any problems I'll be sure to steer people away but so far so good, especially for the under $200 price and no hassle install.
Back on topic of charge piping. I remember a thread that stated performance loses with aftermarket charge piping due to the metal heat soaking and affecting the charged air. I'm sure it's tiny if any but is there truth to this?
Back on topic of charge piping. I remember a thread that stated performance loses with aftermarket charge piping due to the metal heat soaking and affecting the charged air. I'm sure it's tiny if any but is there truth to this?
yeah the backfire your experiencing is the extra fuel that isnt getting burned off finally detonating. i mean i dont understand you(and im not trying to be a dick either).... for some noise you want to run the potentially risk your motor. relocate the maf, recalibrate the sensor and call it a day if you have to vta
the performance loss in piping is partially due to metal but also due to powdercoating which is a huge heat retainer. a few companies offer their pipes raw with no coating or like i run thermal extraction coating which shows no loss of performance what so ever and i dont have to worry about 26psi blowing my plastic pipe apart. the loss is negligable i road race so if anyone would know i would know as im sure my underhood temps are a lot more then some of the other on here that just street drive.
the performance loss in piping is partially due to metal but also due to powdercoating which is a huge heat retainer. a few companies offer their pipes raw with no coating or like i run thermal extraction coating which shows no loss of performance what so ever and i dont have to worry about 26psi blowing my plastic pipe apart. the loss is negligable i road race so if anyone would know i would know as im sure my underhood temps are a lot more then some of the other on here that just street drive.
Thanks for your expertise and knowledge.
I just never figured it out be a potential risk to the motor. I've always thought more fuel consumption possibly speed up the valve coking worst case. Never heard of anyone having any problems on the forums. I am hoping to get to Zzp this year if money's right. And do a ZFR/Charge pipes/Intercooler/Hptune. Until than I'll keep rocking the Trifecta ECP and VTA until some hard evidence comes up. If I did track it I can install the stock Bpv and my old tune in under 20 minutes easy peasy. I really don't go hard on my SSTC since I've done the VTA/ECP maybe that's why it's been trouble free?
I just never figured it out be a potential risk to the motor. I've always thought more fuel consumption possibly speed up the valve coking worst case. Never heard of anyone having any problems on the forums. I am hoping to get to Zzp this year if money's right. And do a ZFR/Charge pipes/Intercooler/Hptune. Until than I'll keep rocking the Trifecta ECP and VTA until some hard evidence comes up. If I did track it I can install the stock Bpv and my old tune in under 20 minutes easy peasy. I really don't go hard on my SSTC since I've done the VTA/ECP maybe that's why it's been trouble free?
Like I said there's just ways to tune it to make it feel normal and that's why it feels normal for the most part but in the end it doesn't solve the underlying issue of venting metered air which causes the ecu to go wtf
So I read up on your past threads and see the car was owned by another person for 4 years before you, and was modified quite a bit(that hidden bass boosting switch was kinda neat). And that it's had multiple problems with knock misfires fuel trims since you bought it. And you were at one point on a standard 22psi select-a-tune with a BOV? Or still to this day never knew exactly what the previous owner had it setup? Never at any point on a forge VTA with an ECP?
Not saying it couldn't have been the ECP tune but sounds like you had a bunch of problems to get sorted out because of the previous owner's poor choices. I found the blown motor sell thread. You were on a regular(non ECP) trifecta tune when it finally gave out according to your post history.
My motors almost doubled your mileage, never exhibited any of the problems you've stated. And it's a 2010, which seem to have much less problems than the 08/09 LNF's.
Sorry you've had such bad luck. It's hard to say what happened to your motor there were a lot of issues.
Not saying it couldn't have been the ECP tune but sounds like you had a bunch of problems to get sorted out because of the previous owner's poor choices. I found the blown motor sell thread. You were on a regular(non ECP) trifecta tune when it finally gave out according to your post history.
My motors almost doubled your mileage, never exhibited any of the problems you've stated. And it's a 2010, which seem to have much less problems than the 08/09 LNF's.
Sorry you've had such bad luck. It's hard to say what happened to your motor there were a lot of issues.
So I read up on your past threads and see the car was owned by another person for 4 years before you, and was modified quite a bit(that hidden bass boosting switch was kinda neat). And that it's had multiple problems with knock misfires fuel trims since you bought it. And you were at one point on a standard 22psi select-a-tune with a BOV? Or still to this day never knew exactly what the previous owner had it setup? Never at any point on a forge VTA with an ECP?
Not saying it couldn't have been the ECP tune but sounds like you had a bunch of problems to get sorted out because of the previous owner's poor choices. I found the blown motor sell thread. You were on a regular(non ECP) trifecta tune when it finally gave out according to your post history.
My motors almost doubled your mileage, never exhibited any of the problems you've stated. And it's a 2010, which seem to have much less problems than the 08/09 LNF's.
Sorry you've had such bad luck. It's hard to say what happened to your motor there were a lot of issues.
Not saying it couldn't have been the ECP tune but sounds like you had a bunch of problems to get sorted out because of the previous owner's poor choices. I found the blown motor sell thread. You were on a regular(non ECP) trifecta tune when it finally gave out according to your post history.
My motors almost doubled your mileage, never exhibited any of the problems you've stated. And it's a 2010, which seem to have much less problems than the 08/09 LNF's.
Sorry you've had such bad luck. It's hard to say what happened to your motor there were a lot of issues.
Yes I was on the ECP tune when the motor blew.
I never had any issues with knock, nor do I recall ever saying I did. I had random misfires reported by the ECU but none were severe enough to ever be noticeable. I believe this was due to the 1/4" of gunk of my intake valves due to direct injections amazingness.
I am back on the Trifecta select a tune now, reluctantly.
I know the setup the previous owner had on it, I've talked to him quite a bit.
To conclude, the ECP tune is garbage. It's a generic tune that gets by for people venting to atmosphere that don't want to do it right. Vince doesn't even edit the ECP tune on a per person basis, it's completely generic. Ask anyone who tunes, ECP is not the right way to be running a VTA setup. Fuel trims were always ridiculously bad.
Drive-ability is also completely garbage with it, I couldn't stand how much it made the car jerk.
If you want to run it, go for it. But any knowledgeable person will tell you to stay away from it.
Last edited by footballplaya3k; Feb 16, 2015 at 09:41 PM.
Get a zzp maf relocate lower cp and hp tune for ur bov if u get one. And if u wanna go with zzp bov I got a pipe with bov flange for cheaper than u'll get from them, almost new .
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