Tuner923
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fail
How To Make Your LNF Fast
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Projekt
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The BPV is bad for these cars. i have it and am 99% confident it caused my map sensor failure
hb_ss/tc
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Projekt
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my map sensor failed on me...i have reason to belive it was due to the BPV spring
hb_ss/tc
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Oh you put one of those Dejon springs in?
Projekt
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yup.
hb_ss/tc
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Yeah those are no bueno.
Myself & LilSS have one and neither of us have it installed. lol
Myself & LilSS have one and neither of us have it installed. lol
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I have the Dejon, but its coming out SOON... I lost my stock one, found someone who had a put a BOV on that sold me their stock spring... it shipped Friday
while stock, I noticed no ill effects, with the boost turned up, it seems to get a little turbo surge, mainly right when I start a trip, after I get to 3rd gear it seems to all but go away until the next start up... either way, I'm going back with the stock one ASAP, I still don't know what I did with my stock spring, lol
I used to run a fenderwell CAI, and I had some surge, so I took it off... that was when I was stock, but I had made an intake out of a spectre kit(made it LONG before the vendors had any out, and removed it in about December)... in the future, i'm going to go with the AEM intake, it seems to have the best results. I may just get the turbo inlet elbow(from the MAF to the BPV), you can get JUST the elbow through summit for like $160(its back ordered right now)... the setup ZZP runs on their LNF is a K&N drop in, with the snorkel mod(which I have, its where you cut off the 2 1/2" restriction and then use a coupling to connect the snorkel to the air box), and the AEM elbow... their LNF Cobalt is currently the fastest one out there as well, and I don't think Matt will mind but here is his air box mod.... All credit goes to Matt of ZZP:
We have been doing dozens of dyno pulls on our new SS/T trying out new parts and tuning in multiple combinations. After trying a few intake mods, I decided to modify the factory airbox. Here is a step by step inexpensive modification if anyone is interested:
The airbox inlet and fenderwell tube are shown here. The ID of the fenderwell tube necks down to about 2.5", and therefore becomes restrictive on high HP setups.
After removing the airbox, notch the plastic as shown:
Next, cut the fenderwell tube just before it starts to bend. Remove the plastic brackets from the tube. I cut all of the bracket off and it left a hole in the tube. You can leave some of the bracket on and avoid the hole. It will still fit fine in the new configuration.
With the airbox back in place, connect the fenderwell tube to the airbox using a 3.25" silicone coupler and 2 clamps.
Completed:
when you gut off the restriction, I left a little bit of the bracket so I wouldn't get that hole he got, I didn't cut it flush, even with part of the bracket on you can angle the piece to where it will still fit and miss the bracket it installs under
Like I said, that is the setup they run, they HAD the full AEM kit on, but got better results with the stock air box and using just the elbow, as the elbow is where the REAL restriction is, and with the open cone filter, its hard to get the MAF to act right....
while stock, I noticed no ill effects, with the boost turned up, it seems to get a little turbo surge, mainly right when I start a trip, after I get to 3rd gear it seems to all but go away until the next start up... either way, I'm going back with the stock one ASAP, I still don't know what I did with my stock spring, lol
I used to run a fenderwell CAI, and I had some surge, so I took it off... that was when I was stock, but I had made an intake out of a spectre kit(made it LONG before the vendors had any out, and removed it in about December)... in the future, i'm going to go with the AEM intake, it seems to have the best results. I may just get the turbo inlet elbow(from the MAF to the BPV), you can get JUST the elbow through summit for like $160(its back ordered right now)... the setup ZZP runs on their LNF is a K&N drop in, with the snorkel mod(which I have, its where you cut off the 2 1/2" restriction and then use a coupling to connect the snorkel to the air box), and the AEM elbow... their LNF Cobalt is currently the fastest one out there as well, and I don't think Matt will mind but here is his air box mod.... All credit goes to Matt of ZZP:
We have been doing dozens of dyno pulls on our new SS/T trying out new parts and tuning in multiple combinations. After trying a few intake mods, I decided to modify the factory airbox. Here is a step by step inexpensive modification if anyone is interested:
The airbox inlet and fenderwell tube are shown here. The ID of the fenderwell tube necks down to about 2.5", and therefore becomes restrictive on high HP setups.
After removing the airbox, notch the plastic as shown:
Next, cut the fenderwell tube just before it starts to bend. Remove the plastic brackets from the tube. I cut all of the bracket off and it left a hole in the tube. You can leave some of the bracket on and avoid the hole. It will still fit fine in the new configuration.
With the airbox back in place, connect the fenderwell tube to the airbox using a 3.25" silicone coupler and 2 clamps.
Completed:
when you gut off the restriction, I left a little bit of the bracket so I wouldn't get that hole he got, I didn't cut it flush, even with part of the bracket on you can angle the piece to where it will still fit and miss the bracket it installs under
Like I said, that is the setup they run, they HAD the full AEM kit on, but got better results with the stock air box and using just the elbow, as the elbow is where the REAL restriction is, and with the open cone filter, its hard to get the MAF to act right....
Last edited:
Projekt
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good post ^^^
MrCobaltss09
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so there is no need to change the stock BOV, it will do jut fie if i am running 20 PSI?
with the AEM intake and theinjen charge pipe?
with the AEM intake and theinjen charge pipe?
cobalt123
Platinum Member
it should, most of my friends have bought aftermarket for louder sound
MrCobaltss09
Junior Member
i dont need louder, the intake and charge pipe make the turbo sound loud enough without a upgraded BOV
cobalt123
Platinum Member
you shouldnt need one
MrCobaltss09
Junior Member
thanks that will save me some money, didnt realize that the stock BOV is as good as it is.
MrCobaltss09
Junior Member
i was also woundering. i know this is going to sound stupid.
i was doing some looking at the turbo set up and i was not able to find the BOV on my car, was woundering where it is located?
i was doing some looking at the turbo set up and i was not able to find the BOV on my car, was woundering where it is located?
There isnt a BOV, there is however a BPV, pretty much does the same thing but in a different manner. If you look behind your engine on the left side of the turbo is a small tan cap with 3 bolts and a vacuum hose running to it, thats where your BPV is.
3 bolts and a spring in the photo below.
3 bolts and a spring in the photo below.
MrCobaltss09
Junior Member
so is there anyway to get rid of that one and get a regular BOV, or would i have to just run both. but i am planing on getting the injen charge pipe which by the looks of it does not have a BOV attachment place, so i guess it does not matter.
You can buy a block off plate, or there is a replacement one that is a piston design that is supposed to hold up to more pressure. Over all mounting an atmospheric BOV is robbing you of HP and being counter productive to your ECU even with proper tuning.
MrCobaltss09
Junior Member
so i should just leave it as it is right now. is what you are trying to say, i dont want to start messing with things that i dont need to.
Yeah pretty much, you dont need to replace the BPV entirely, if anything buy a better/heavier spring to drop in behind it. I havent heard of anybodys BP valves going before.