Mazdaspeed3 VTCS Delete

In this video I delete my VTCS system and port my intake manifold out.

[@voltron979]

I know this is an old post but bro, you did an excellent job!

[@racing0eagle]

Is flaps open or closed when vacuum valve don't work? P2009 fault

[@Sarm-mx6qy]

Nice job.

[@jso726]

It seems that a functioning VTCS provides better air swirls, and thus better fuel atomization...Also it helps with low-end power....if you remove VTCS, you loose a bit of low-end, but gain power in the upper RPM range. Logic dictates that Mazda would not spend so much money on research, just to put those flappers to block airflow.

[@AdamAkers]

Don’t believe I said they put them there to block air flow. I know why they are there. I’m currently built bottom end with a big turbo I don’t care to much for low end power as most racing is going to happen at 3k RPM’s and up.

[@trey369]

Any benifits from this for stock ko4 with a full bolt on and tune?

[@AdamAkers]

They’re there but small. Even big turbo the benefits from this are small I’ll upgrade to a JMF intake soon.

[@keeganharrisom1389]

I had a PnP intake I’ll be honest I didn’t feel anything I’m considering trying out the st manifold

[@va7kpt]

Why did you grind off the supports and fill the hole for the MAP sensor? Isn't that still needed?

[@AdamAkers]

I didn’t fill the hole for the map sensor the map sensor is on the left side at the bottom I filled the holes for the VTCS system because I deleted it. Also I ground off the supports because I don’t need them any more.

[@va7kpt]

@@AdamAkers thanks for the quick response! Yes - turns out I was mistaken about the MAP sensor location I buzzed off all of the VTCS supports this afternoon

[@mxtragedy]

Did you use anything for the jb weld for support or did you just put it on there? I’m about to do the same just wondering Thanks

[@AdamAkers]

Yup just filled the holes with it taped the inside so no access enters the manifold.

[@mxtragedy]

@@AdamAkers okay great I was wondering on the correct way to do it, has yours been holding up? I went with the high temp jb weld… I thought that would be the best option

[@grzmotors4664]

Do i need accessport to avoid problems when doing this?

[@AdamAkers]

Yes! You need to have a custom tune otherwise your car will run awful. Also it’s going to run rough in the winter. I wouldn’t recommend doing this unless you’re big turbo.

[@Streetperformance88]

If I have it tuned do I have to re tune it to do this ?

[@AdamAkers]

Yes.

[@hayleyrtz]

The weed whacker! 😂😂😂😂

[@KDShufflers]

For the VTCS delete do I need to be tuned?

[@AdamAkers]

Yes absolutely. You will throw a code and it will not run correct.

[@EG-rc7uj]

@@AdamAkers what code will it throw ?

[@mortysmith5556]

They come stock with the insulator

[@justinmccray7342]

My speed6 has that pad

[@804_Rider]

😬 GOLD THOUGH? I thought you were trying to make it look better 😆 to each is own I suppose 😝

[@christianabalus4162]

Does vtcs delete need a tune?

[@AdamAkers]

Yes you will require a tune with this, because the ECU will think it’s getting too much air and set off a code.

[@christianabalus4162]

@@AdamAkers ok thanks

[@BurtMegaming]

Instead of deleting it completely, why not just disconnect the solenoid? Same thing no?

[@AdamAkers]

Disconnecting it opens the flaps all the way but they’re still in the way I also ported out my runners making them bigger so I had to completely remove them.

[@BurtMegaming]

@@AdamAkers im lazy to remove it lol im just gonna disconnect for now and delete the codes