BOV for 05 gsr
Thread Starter
Evolving Member
Joined: Nov 2003
Posts: 107
Likes: 0
From: Long Beach, CA
BOV for 05 gsr
I've read and heard from friends about stalling problems after installing vta Bov's on 03 Evo's. I've been told i won't have any problems on my 05. What brands are you guys using?
i think it is true. because I have an 03 and I and running an HKS SSQV bov. My problem is when it releases air and i put it into neutral, it would drop rpms or stall.. and my friend has an 05 evo and he is running the same bov and his has no problems other than fluttering and surging a little. I tried switching his bov onto my car but I still had problems...
Evolving Member
Joined: May 2005
Posts: 354
Likes: 0
From: NorCal
VTA hurts performace on any year, seems like its just not as noticable on the 05s sometimes.
VTA is pretty much only good for the sound. You ARE going to make your car run worse and have drivability issues. If its because you want your car to be like the cool cars you see in the magazines that are VTA, its because they have a standalone engine management, so they can do that. you can not.
VTA = Car runs bad regardless of year. dont do it.
Oh, and yeah, Search.
VTA is pretty much only good for the sound. You ARE going to make your car run worse and have drivability issues. If its because you want your car to be like the cool cars you see in the magazines that are VTA, its because they have a standalone engine management, so they can do that. you can not.
VTA = Car runs bad regardless of year. dont do it.
Oh, and yeah, Search.
Trending Topics
05's do not have a problem with running VTA valves, they will not stall out like the 03's diffrent computer controls, the only problem with them is that they might jerk at certain speeds if you dont let of the gas in one way or another, recirculating is the better way to go in all model years of the evo's and the best one is the JDM mr valve
APS dual vent is a great valve if you want a little sound without any driveability issues. If you don't care about the sound at all, or don't want to spend around 200 bones, go with the MR DV. I've had both and liked both.
05 evos are fine. choose any Bov. I ran both VTA and recirc with forge RS BOV. The only reason I am running recirc now is the VTA setup was too loud and got cops attention everytime they were near by. Only thing different I noticed was the sound. Otherwise. It feels the same, performance was the same if not better( releasing that compressed air directly to intercooler pipe or something might cool off things 
).
).
well, it may be possible that the 05s are not necessarily effected as much by a VTA because of some possible different factory ECU tuning. However, REGARDLESS of year, your car will run rich, however small. Some cars show it more than others for various reasons, but it WILL run rich. The way the Evo is designed from the factory is, it measures that air and applies fuel accordingly. When you VTA, you are dumping air that has already been metered and the fuel is still being applied as measured, hence, a rich fuel condition. That is why some cars stumble at idle, because the mixture cannot ignite correctly under too rich a condition with not alot of air intake. Like I said, in some cars, this is more noticeable, but every Evo will be effected one way or another. If you don't believe me, run VTA for a while, then check ur plugs, they'll probably have a lot of carbon buildup. There are ways around this but that usually involves swithng to MAP instead of the Evo MAF. VTA just gives you that great sound. If ur lokin for somethin that performs well, check out www.dejonpowerhouse.com They run some highly modded 1G BOVs. I have this kit and it cost cheaper than aftermarket and, in my belief, outperforms them. Of course, I don't care baout that sound. I love the low-key look and sound I have (which a 1G BOV gives you)...
Anyway, my $.02
Anyway, my $.02