what is vtcs and what's it do?

[manifestoid]

I've looked at a lot of threads talking about removal of vtcs and such and i have no idea what it does? can anyone fill me in on what it is and what it does? thanks

 

[justanothermp5]

removing it lets the air flow into the combustion chamber easier, when they are in there they control the air and how much it "tumbles" the tumbling action is supposed to increase low end torque or something not sure

but when you remove it, you lose a little low end torque and gain top end HP, its a free and easy mod
to get the most out of it i would suggest smoothing (port and polish) the little lip in the manifold left after u remove the butterflys

 

[m626gt]

Actually VTCS is used only at cold startups and you can remove that. VICS is for lower rpm power you don't want to remove that if you are staying NA.

 

[njaremka]

VTCS (Variable Tumble Control System) is an emmissions thing - it helps fuel combustion when the engine is still cold. removing it helps airflow, which is why the MP3 never had it.

 

[manifestoid]

sweet guys thanks for the help...is there a good how to on it somewhere?

 

[njaremka]

um, in the "How-To" section?

http://www.mazdas247.com/forum/showthread.php?t=82884

 

[manifestoid]

ya i tried that one..the link doesn't work for me

 

[njaremka]

ya i tried that one..the link doesn't work for me

there is a link somewhere in the thread to a pdf version - i dont feel like searching again to find that specific post for you.

 

[pablosqy]

in the page 9 is the document

 

[justanothermp5]

oh woops, mixed the 2 up
sorry bout that

 

[manifestoid]

sweet man thanks for finding it