Turbo 'flutter' during low rpm / high gear acceleration...

[14SHOCAR]

That's my video blog. I had the same issue. Its explained in the audio of the video, but essentially your car is detecting an overboost and opening the waste gates. it could be a cracked pipe, it could be the same issue with the hose, or it could be a variety of other issues. Sometimes I feel the boost, sometimes I don't. When I lay into the throttle it feels like a naturally aspirated Taurus.

[FoMoCoSHO]

That's my video blog. I had the same issue. Its explained in the audio of the video, but essentially your car is detecting an overboost and opening the waste gates. it could be a cracked pipe, it could be the same issue with the hose, or it could be a variety of other issues. Sometimes I feel the boost, sometimes I don't. When I lay into the throttle it feels like a naturally aspirated Taurus.

That is the worst feeling in the world. I experienced that when the tech forgot to tighten the clamp on my CAC.

[14SHOCAR]

That is the worst feeling in the world. I experienced that when the tech forgot to tighten the clamp on my CAC.

Between the downpipes and the tune issues, I was VERY frustrated. And I didn't even know where to start. Stock Tune had the same issues. Luckily I saw that hose came off.

[rondeau13]

I will check the tightness and locations of my lines and hoses tonight. Thanks and great video

[rondeau13]

I just read that high boost at low rpm can cause compressor surge dee to the engine not consuming enough air because of the low rpm. Just a thought. I'm hitting 22 psi at 1800rpm so this is definitely a possibility

[AJP turbo]

Very well could be...i had this early on and i couldnt make the car like it much ...that just goes to show u that turbo lag is non existent in the ecoboost motors...22 psi at 1800rpm is pushing them hard....the tune has compressor surge pretty well defined as far as airflow so you shouldnt be exceeding that but without the tune hard to see whats really going on

[rondeau13]

Wired part is that there isn't really anything special about this tune other than its made for performance with the aftermarket parts that I have but other than that it's a tune that works for other ecoboost f150s

[rondeau13]

So I checked my vacuum hoses cleaned all sensors and still getting flutter. So I loaded my five star back on. Problem solved

[SHOdded]

Probably saved yourself an engine in the process!  What kind of psi are you seeing now in the low rpm range?

[FoMoCoSHO]

Funny you mention that, I've just been reading about some knock sensor shenanigans....

Bad thing can happen when you remove the ECMs ability to pull timing.....

[rondeau13]

Max boost anywhere in the rpm range is 16.5 with the five star compared to 22.2
So much safer

[FoMoCoSHO]

I'd love to see that *** log.

I know he "fires customers" for sharing them with anyone besides himself and his crew but I don't get the impression that will be an issue going forward.

Red flag anyone?

[AJP turbo]

I'd love to see that *** log.

I know he "fires customers" for sharing them with anyone besides himself and his crew but I don't get the impression that will be an issue going forward.

Red flag anyone?

Fires customers lol..how does one survive like that?....i dont think he would like me much

He doesnt like people looking at his logs lol?...no secrets in a log....thats actually an opportunity to showcase your tune and the skills tou have as a tuner

[FoMoCoSHO]

Its been an interesting day of reading....especially over at 150.net.

[AJP turbo]

Whats the website?...maybe someone could use a good dose of ajp lol?...i like reading about people being all bent out of shape