OK. What causes an increase in RPM? an increase in air and fuel, correct? How does the ECU increase these?
I either have a bad CAT, header, or maybe both. That said, the car is parked until I can diagnose and correct. With crap weather on it's way, that may be until spring.
What you are hearing is the clutch release prior to power shutoff and the motor starting to free rev. It is only doing that because you have the throttle to the floor. It is not a design feature. It is a characteristic of your car based on clutch set up and clutch wear. I can do that in any 355 on a down shift coming up to a corner with the throttle. What people are talking about is the cars ability to do that on its own during downshifting and decelerating. The 355 has little ability to do it.
I think some owners here are confused with the actual definition of rev matching. The 355F1 does not rev match. In fact, that's one of the things I like about it. Even though it has flappies, it still leaves something to the driver to actually get the shifts "just right".
OM even says to "add throttle" on downshifts. Would it say that if it blipped for you? On upshifts, the computer cuts fuel, so no lift is REQUIRED, but it still helps to lift a bit to smooth the upshift. But you all should be blipping the throttle while downshifting.
Not this owner - I've driven race cars before and I did this all the time in my corvette. I even double clutched.
Other owners have been saying this and I struggle with it. The timing would need to be incredibly precise and almost a guess as to when to blip. I bet 90% of the time the owners doing this are blipping before the clutch has been released.
I actually blip about the same time i pull the paddle to downshift and it works 90% of the time. It smoothes the downshift out nicely and i just felt it was easier on the transmission. I guess after this discussion i agree it is not a rev match that happens automatically. What Rifle explained is what is really happening. I also lift slightly on upshifts as i felt it was easier on the transmission.
Here is a link to a post I had made in another thread featuring a video. Notice the footwork in the video. http://www.ferrarichat.com/forum/143434106-post36.html I hope this helps.
Nice, but I don't drive my car that hard nor could I on the street obviously. I give it a tap and it seems to work perfect.
I don't think anyone has claimed the system is "rev matching" At least I havent. The question is does it blip on downshifting, and the answer is yes. There is no doubt at all that mine does. This is probably due to the unloading of the engine when the system engages the clutch, but whatever the reason, it does blip.
It's not physically possible, there is no ecu control of the throttle other than the idle control valves which can't rev the motor over ~2krpm.
It doesn't need to have any control (physical or otherwise) over the throttle to do what I'm describing. Simply unloading the engine by the action of the clutch will do it. And it does.
Steve, I will admit I was partially wrong. As Brian stated, the only function to cause a blip is the increased air injection. So, I guess we can argue semantics and say it does blip but not really in the true sense.
+1 Steve if you do what i say in post #16 you will see that the motor blips the throttle twice on the down shift.if thats not a blip i dont know what is.I agree with you 100% and i dont know why it does what it does but its a blip.
Mike, do you know who Brian is? He is one of the most knowledgeable Ferrari techs. He know what he is talking about and has explained this. I have further researched the mechanisms and there is no ECU control of the throttle, the only explanation that makes sense came from Brian.
Yes i know who he is.I do buy his explanation but i still dont understand why the throttle blips revs or whatever twice if its not a blip.
Fair enough Dave. I am not a mechanic's little finger so I'm not going to argue with Brian or anyone else about how or why. All I know for sure is that when I'm coasting without any throttle input at all and I pull on the left paddle for a downshift, there is definitely a "blip" from the engine before the next gear is engaged. Why that is I'll leave to the experts, but it definitely does happen. (If I had to guess I'd say it's just the unloading of the engine)
I do agree with you Steve. Brian did explain why and how that is happening. It's not in our heads, it's just different than what we thought
