Ghost Cam Idle

[aagun]

Originally Posted by Kodename47

Practically speaking, you would have to find the addresses for the data that controls AVCS at idle. The standard cam tables aren't in operation.

It shouldn't cause any issues though, but will likely use more fuel.

that's it only way .

[wizzo]

Thanks for chiming in guys Well maybe someone on the forum that knows his way through the ECU could chime in. Thanks for the input.

[serialk11r]

Idle is not controlled by the AVCS tables you see in Romraider or whatever, like a bunch of people already said.

That said, you CAN introduce lope at low load by adding exhaust cam retard. About 10 degrees should do the trick. I got some pops with 5 degrees at 1600-2000rpm. Basically the overlap will be diluting your charge to the point where it has trouble burning. However your car will be shaking a bit, which may or may not be annoying.

[Kodename47]

[Teseo]

Originally Posted by Kodename47

http://www.youtube.com/NIucLWw27Uc

Page doesnt work

[Dakines]

http://www.ft86club.com/forums/showt...t=ghost&page=7

some on has did it, but he did not share it.

[Kodename47]

Originally Posted by Teseo

Page doesnt work

Fixed

[nocoolname]

Originally Posted by Kodename47

So pretty much, possibly raise the target idle speed to 1000 RPM and then retard ignition timing for 1000 RPM in the first couple of low load cells?

My line of thinking is that if you have a higher idle, when it stumbles from the timing retard it won't drop low enough to kill the engine. The reason to change the ignition timing at the target idle speed is that's the only way to have the car hit that at idle, with doing it at 1000 RPM is all the OFT maps I've looked at have an 800 RPM row so as the idle drops, it will interpolate and the timing will pick back up to shoo the idle back up.

I think all of this though would just make the car sound like it had the "Honda cough" i.e. bad IAC valve and a hunting idle though.

Or I could be way off on all this.

[Teseo]

So thats the sound of the new fiesta? Besides cats getting damage, what others parts are involded too?

[Kodename47]

Originally Posted by nocoolname

So pretty much, possibly raise the target idle speed to 1000 RPM and then retard ignition timing for 1000 RPM in the first couple of low load cells?

My line of thinking is that if you have a higher idle, when it stumbles from the timing retard it won't drop low enough to kill the engine. The reason to change the ignition timing at the target idle speed is that's the only way to have the car hit that at idle, with doing it at 1000 RPM is all the OFT maps I've looked at have an 800 RPM row so as the idle drops, it will interpolate and the timing will pick back up to shoo the idle back up.

I think all of this though would just make the car sound like it had the "Honda cough" i.e. bad IAC valve and a hunting idle though.

Or I could be way off on all this.

The main timing tables have no control over idle. What I'd imagine you could do is make the idle ignition timing tables negative/low values until just under your idle RPM and then make them nearer MBT so it suddenly makes power and increases RPM. I've now played with these tables to make the idle really steady so would think it could make this effect if you can get the timing low enough.

[nocoolname]

Good point on the timing table not controlling idle. I'm still learning this car.

[Mr Nerd]

Trying this as we speak.

If my neighbors get mad that I disturbed their Mariachi Karaoke session I'm telling them that Kodename47 made me do it.

Sent from my Galaxy S8+ using Tapatalk

[brzlegend]

Originally Posted by wizzo

Hey everyone,

This is a wierd post, but if anyone has seen the ghost cam tune for the Mustang 5.0's its on the same thought train.

So the 86 has dual vvti like the 5.0 mustang, ive seen people doing wierd things with their tune like causing pops and bangs at a certain load. Has anyone ever looked into using overlap through retarding or advancing the cams or whatever it is that is done with the dual vvti to create the idle of an aggressively cammed boxer engine.

Would i have it on my car if it was possible? Probably for the laugh.
Would i get bored of it? Probably after a while.

Raise minimum low(idle) AVCS intake angle to around 30 or so, you also could retard the exhaust the same way.

When vvt is enabled avcs is always active, idle or not. I know that's not popular belief but ecutek shows it operating, watch the duty cycle and solinoid current. When vvt enabled the pin is unlocked and it's running off the oil chambers in the phasers.