I just found out something. On 3 of my 360s with CS tcu. All of them has the same problem: if you drive normally and want to have a sudden acceleration, u want to downshift and put down your gas pedal. And at soon as you put down y your foot, your clutch will slip for a second or 2 , before it grabs nicely. I don't think I have any setup issue on PIS or close clutch position or whatever. And my clutches aren't worn either. I was hypothesizing to solve this problem you need a CS ignition ecu flash as well to make torque transfer timing corrected. Just a guess. So i'll try to flash one of my 360s and see if that solves the problem. Try it yourself , my comrades, u'll be surprised. ------------------ edit: i read a post a few months ago about this exact problem. But the article isn't mentioning any CS tcu flash. one of the poster said it has something to do with the clutch position sensor magnet getting old. I used to believe that. Until 10 minutes ago, I realized all of my 360s with CS tcu have this problem. That is a very improbable event for all 3 magnets to become old. But i'll try to flash the ignition ecu to find out. edit: also on upshifts, there's a noticeable engine up-revving during shifts , compared to Modenas with its factory-equipped TCU. That also has something to do with torque transferring I'd believe.
Fascinating! I also have a flashed CS TCU, and I also have the downshift issue you describe. It is not THAT big a deal to me, I suppose, so I never posted. Doubt it is 4 bad old magnets!!! Please keep us updated! Kevin
Interesting....my mechanic diagnosed that very same problem as a bad position indicator, and they were the ones that put the CS TCU in. Since I've got the modified CS maps from Mase, I'll have to try that when the great flood is over....
I'm having a similar problem only really noticeable up shifting from 3rd to 4th. I get a high rev. I planned on doing some diagnostics later to see if I can figure it out.
edit: one of the 3x 360s mentioned has new clutch and pressure plate. So I'd eliminate a weak pressure plate issue. edit: Instead of flashing the ignition ecu, I can easily revert the CS flash back to TCU from factory and see if the problem go away. That'll be easier. I think i can get it done today. I just woke up ( @9:45am)
I have a '00 360 with CS TCU and have this exact same issue! Brand new clutch, sensor, magnet, pressure plate and throw out bearings have been installed (old clutch was shot). Mechanic suggested a sticky throw out bearing, but all other shifts are so crisp and pickup is so smooth it makes little sense. Only ever happens on a downshift 6 ->5 or 5->4 with light throttle moving to heavy. Feels like clutch slip for 1-2 seconds then it grabs. My solution is to back off throttle, downshift, pause, then apply gas. If someone can confirm an ECU re-flash solves this then our friend 360trev may be able to help out with a firmware mod (hopefully he picks up on this thread). This is a significant discovery. Well done.
Not quite plug and play, but this is a very subtle problem that can be driven around. I suspect most owners don't even realise what is going on. The overall benefits from the CS TCU makes it a worthwhile upgrade.
I also agree with the description in #1 I found if you lift off the throttle completely when doing the downshift and then reapply it seems to be a clean engagement. But if you have the throttle at 25%-50% and do a downshift, it often gets a bit confused and takes a few seconds to sort itself out. When it did happen it was very annoying. So an interesting mystery to investigate.
OK, people. I carried my leonardo and my 2003 TCU with me when test driving in downtown of a prominent city of China at 4:00am. LOL Now it is confirmed that the following are the results of replacing the TCU of a Modena with a CS one. 1. You'll get clutch slipping up to 3-4 seconds before it grabs if you downshift to accelerate, depending on such parameters as throttle input, gear engaged, how many gears downshifted. 2. You'll get a slight higher RPM , compared to those with a factory equipped TCU, when upshifting with more than regular throttle input, say 40%. 3. You'll get some degree of engine stalling when braking to a stop, depending on how fast the RPM drops before your speed becomes zero. In my case it never actually stalled the car, but almost. each and every time I brake hard to a red light stop.
solution pending when trev would answer my messages, he's busy, u know. I'll flash the ECU with CS dump and see if that cures the problem. Like mwsteward said, I would guess it is a calibration and compatibility issue.
I don't think this can be taken for generality !! I have done more than 20000km in my (ex) 360 with a reflashed CS TCU without experiencing that. Never had points 1 and 3, the RPM surge of point 2 was similar between the CS TCU and the 2002 TCU.
i'll shoot a video and you mimic the condition I am driving. So you can see for yourself. all three of my cars do this. Just tried.
Point 2 is what I get fairly often. My body already figured it out on it's own. I instinctively let off the throttle just a touch when shifting from 3 to 4 and I get no rev. This is one of the things I just LOVE about a Ferrari 360. They just don't drive like any other car. You have to learn her and admire her. She's one hot Italian! Not just anyone can go out with her.
That, and a Song by Elvis Presley. It actually comes from a number of years ago I was doing Old west horseback riding and a competition called Cowboy Mounted Shooting. It's like barrel racing on steroids! One day I showed up with a bunch of new duds and the announcer gave me an Alias of CCRider for I didn't have a lot of money so I put all on my Credit Card. I was born in 1966.
I flashed the igntion ecu with CS map, adjusted PIS. started the car, after a few minutes of idling, it overheats. The radiator is cold to touch. So i need to solve that first, then to test drive. I used to have this problem and I thought it was thermostat so i replaced it with a new one a few months ago. Seems not the case
The thermostat is the high point. If you didn't use an airlift to fill the coolant you have to use the bleed screw on the top of the thermostat housing. If you don't, you get an airlock there and coolant doesn't circulate or does so poorly.
Yes, in sport mode is where it's most noticed. The better part are the down shifts, especially on the track or high speeds and high rpms!