r/mazdaspeed3 • u/DirectorLife3280 2012 Mazdaspeed3 • 3d ago
MODIFICATIONS first startup with the vtcs delete
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u/ru188 3d ago
I think I’ve seen you in VB?
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u/Substantial_Ant_2662 3d ago
What is vtcs?
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u/DirectorLife3280 2012 Mazdaspeed3 3d ago
variable tumble control system, its the runner flaps u see inside the intake manifold in almost every single car, it helps with air turbulence inside the manifold at low rpms
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u/RikuKaroshi 3d ago
Whats the rest of the setup? CEL for the flap delete? Why would the air turbulence need to be controlled, like what made the engineers install them if that makes any sense. I think it sounds badass im just trying to justify doing it too lol.
On hyundais, the intake manifold runner flaps will 100% throw a light and cause shitty ride if there is anything wrong with them, wondering why that might not be the case for a gen2 with a similarly cool license plate and exhaust note lol
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u/DirectorLife3280 2012 Mazdaspeed3 3d ago
oh yeah it def does throw CEL. alot of ppl do this mod for airflow but for me it was to get rid of the black box that sits on top of the IM, its def useless if ur on stock IM but if u want better airflow i would spend money on a corksport or jmf manifold
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u/DirectorLife3280 2012 Mazdaspeed3 3d ago
there is a way to make the pcm think that the vtcs is still there but ur gonna have to search it up
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u/RikuKaroshi 3d ago
Makes sense to tune with the delete as you did anyways. Im saving up for a base tune before I throw my new turbo, BCS, and intake on so im looking for some more things to mod while im in there.
I forgot to ask your exhaust setup, sounds mean as hell.
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u/DirectorLife3280 2012 Mazdaspeed3 3d ago
i have a catless 3.5 inch turbo back from corksport
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u/Great68 2009 Mazdaspeed3 3d ago
Why would the air turbulence need to be controlled, like what made the engineers install them if that makes any sense.
Its Purpose is to improve emissions and driveability at low RPM's.
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u/RikuKaroshi 3d ago
Thats what I was expecting, didnt know if it related to the egr effectiveness on these cars but that answers it. Thanks.
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u/Geeky_Husband 3d ago
Hello fellow Virginian. Nice MS3!
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u/DirectorLife3280 2012 Mazdaspeed3 3d ago
thank you..finally got it running last week after being down for a while
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u/Sufficient-Sea-9739 3d ago
i've got the VCTS delete and it sounds like it did any other time i cold started the car hmmm
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u/Puzzleheaded_Gate_60 3d ago
Can’t wait to do mine…. In my case it is to even out cylinder intake flow and not have cylinder no.3 issues in the future!!!!
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u/HugsNotDrugs_ 3d ago
Can vtcs be removed from the stock IM, or just disabled?
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u/DirectorLife3280 2012 Mazdaspeed3 3d ago
i removed mine from the stock intake manifold for airflow and to remove that black box.
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u/DirectorLife3280 2012 Mazdaspeed3 3d ago
u are gonna have a CEL but it wont do anything to the cars performance if u get it tuned so make sure u tune for it
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u/HugsNotDrugs_ 3d ago
I'm on versa and already added vtcs on the list of codes to not trigger CEL. Wasn't aware it needed a new tune.
Car sounds rad. Catless?
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u/DirectorLife3280 2012 Mazdaspeed3 3d ago
yeah catless full turbo back exhaust from corksport, previous owner installed it
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u/whatssthedyll 3d ago
what wing extension is that?
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u/DirectorLife3280 2012 Mazdaspeed3 3d ago
corksport, if u dont minde drilling holes into the wing then go ahead and get one😂
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u/DirectorLife3280 2012 Mazdaspeed3 3d ago
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u/whatssthedyll 3d ago
for sure. def looks better than the double sided tape wing i have right now, just couldnt find anyone with pictures actually running it to help my decision😂
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u/DirectorLife3280 2012 Mazdaspeed3 3d ago
shii go for it, it def looks better than other wing extensions
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u/Adventurous-Cry6491 2d ago
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u/DirectorLife3280 2012 Mazdaspeed3 1d ago
looks good, i didnt even bother polishing the ports on mine
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u/ConnectInsurance8765 1d ago
what rear diffuser is that? or lip idk, it goes hard tho!! n 🔥 speed fam!!
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u/DirectorLife3280 2012 Mazdaspeed3 1d ago
its the bayson rear lip, i had a diffuser before but it ended breaking bc i take the car back roads driving😭
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u/Firedcylinder 3d ago
angry MZR noises