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VVT RPM and sound

PostPosted: Fri Jul 03, 2015 3:12 am
by vmo
In the game, when the VVT starts working, changes the sound respect the lower RPM and the same engine without his system (like a VTEC engine?

And a suggestion: the game developers can put a RPM selector to decide since which RPM the system starts working (the same for the VVL)?

Re: VVT RPM and sound

PostPosted: Fri Jul 03, 2015 3:21 am
by TrackpadUser
The RPM is automatically set to the optimal point.

Why would you want something different?

Re: VVT RPM and sound

PostPosted: Fri Jul 03, 2015 3:32 am
by vmo
To set manually this point, to had preference some specs.

Re: VVT RPM and sound

PostPosted: Fri Jul 03, 2015 3:41 am
by nialloftara
So you want to intentionally make worse engines just to have VTEC kick in? You can already alter the can switch point by altering cams, ignition, exhaust size. Also are you talking VVT or VVL?

Re: VVT RPM and sound

PostPosted: Fri Jul 03, 2015 4:14 am
by utopian201
Don't you control when the second cam kicks in by using the cam slider?

Re: VVT RPM and sound

PostPosted: Fri Jul 03, 2015 7:13 am
by vmo
utopian201 wrote:Don't you control when the second cam kicks in by using the cam slider?

But this is the cam profile, not the RPM settings.

Re: VVT RPM and sound

PostPosted: Fri Jul 03, 2015 8:03 am
by nialloftara
So you are talking about VVL?

Re: VVT RPM and sound

PostPosted: Fri Jul 03, 2015 9:04 am
by vmo
nialloftara wrote:So you are talking about VVL?


The VTEC (VVL or variable valve timing).

At least, make in automation a sound change when the system starts: https://www.youtube.com/watch?v=k15GF6bkLDM (in 0:48 the VTEC starts).

Re: VVT RPM and sound

PostPosted: Fri Jul 03, 2015 9:14 am
by Leonardo9613
Well, VVL clearly doesn't mean Variable Valve Timing.

VVT = Variable Valve Timing
VVL = Variable Valve Lift, sold by Honda as VTEC.

Re: VVT RPM and sound

PostPosted: Fri Jul 03, 2015 10:45 am
by nialloftara
I-vtec is both variable lift and timing, but when someone says VTEC kicks in yo, we all mean the cam lift.

Re: VVT RPM and sound

PostPosted: Fri Jul 03, 2015 10:53 pm
by utopian201
vmo wrote:
utopian201 wrote:Don't you control when the second cam kicks in by using the cam slider?

But this is the cam profile, not the RPM settings.


A higher cam setting pushes the switch over higher in the RPM range, if the first cam is low. If the first cam is very similar to the second one then the effect will not be as noticable.

Image

eg here the cam switch over is about 5000rpm. If I wanted to to move the switch over earlier and keep the same engine rpm range, I would lower the first cam profile. To move the switch over later, I would increase the cam profile of the first one. Changing the second one affects the engine's RPM range, so unless you wanted to change that, you would keep the second one constant.