348 - Stand alone ECU | FerrariChat

348 Stand alone ECU

Discussion in '348/355' started by Ob917, Sep 3, 2024.

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  1. Ob917

    Ob917 Formula Junior
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    Jun 7, 2024
    255
    Cardiff CA
    Full Name:
    OB
    Hi guys, heading down the rabbit hole here. Since 2.7 motronic stuff isn’t readily tunable and I’m sick of all the random check 1-4 etc lights I’m going the stand alone route.

    I’d like to have a proper dyno tune for a freer flowing exhaust and intake, plus raise the rev limiter to 8 or 8.k rpm. I’d also like to get rid of the old school coils and coil wires. I’ve been down the megasquirt road already on a past project. And please don’t say just turbo it etc it lol. I’d like to step it up to a high end stand alone, custom harness and a local SoCal tuner who is familiar with one of them. All the threads about this are very old so excuse this post that with any other platform would have been answered a hundred times. All the 348 info I can find is 10 years old or so.

    Has anybody done this recently, is there a shop anybody has had or know of that is capable? Especially in SanDiego but I’ll also go north a little ( I used Lang) in OC for my M3.

    Thanks for any real life info you guys have.
    OB


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  2. ChoonHound

    ChoonHound Formula 3
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    May 13, 2022
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    Lucas
  3. Ob917

    Ob917 Formula Junior
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    Jun 7, 2024
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    Cardiff CA
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    OB
    Yeah that car looks like it runs awesome. I did wonder what engine management it used.


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  4. Ob917

    Ob917 Formula Junior
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    Jun 7, 2024
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    Cardiff CA
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    OB



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  5. Ob917

    Ob917 Formula Junior
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    Jun 7, 2024
    255
    Cardiff CA
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    OB
  6. davebdave

    davebdave Formula 3
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    Mar 18, 2007
    2,381
    Northern VA
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    If you do this please post details. I’m having hot start issues with our Mondial t. Theoretically there is a rattle in the flywheel on start that confuses the phase sensor. I have re-greased the flywheel to no help and then had the belt service done professionally along with a pro re grease. Car is happy except for the hot start is still there although much better. The current diagnosis is that the flywheel springs are weak. Since the car is otherwise happy, I’m wondering if there is another type of cam sensor that can be installed that wouldn’t be vibration sensitive. Perhaps an entire standalone ECU would be the way to go. We love the car and would like it to be turn key and hassle free. A little more power would be nice too. Dave
     
  7. fatbillybob

    fatbillybob Two Time F1 World Champ
    Consultant Owner

    Aug 10, 2002
    28,609
    socal
    I'm going to throw this out there not as advice but as what is possible as 1 data point. First to regerase the flywheel the amount of grease needed is not what is posted in the wsm I think listed is 180grams. Using more like 1/2 the can 250grams works. No surprise the can is 500ml. You do have to use kluber grease. It has weird properties like your favorite hairgel. Other grease works but not as long as kluber.

    No one knows why ferrari did a dual mass flywheel. Conventional wisdom is to reduce NHV and or dangerous harmonics that can increase breakage of perhaps the input shaft. I might be the only one who has converted the 348 dual mass into a lightened solid flywheel. I did that by taking the guts out you grease and cut the spider thing off and welding the parts together. I then took the FW to a balancing shop to spin balance the FW. I used this in my 348 racecar that was running more extremely than 348 challenge cars of the day. I ran the car in this configuartion for many years with zero damage to the gearbox or shaft and that car is still running today in autocross competition by another Fchater so I do not believe harmonics was an issue. NHV might have been an issue but I will never know because I ran the super loud 348 challenge style tube exhaust. It was so loud people would come out of the paddock to see what was going down the track. It was glorious. That's my story and possibly something for you to try.

    Finally, the plastic parts can wear if run without grease too long. If they loose dimensions more grease isn't going to make up for that. I do happen to have some 348 flywheel guts greasy in a bag if you need them. I do not have an inventory on all the parts. It would just be a you pay the shipping "pay it forward" kind of thing.
     
  8. ChoonHound

    ChoonHound Formula 3
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    The first person to sell a turnkey (pardon the pun) standalone harness, ecu, and tune for the 348 will be a thousanaire.
     
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  9. davebdave

    davebdave Formula 3
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    Mar 18, 2007
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    thanks, very helpful information. I used the exact amount of grease specified of course. The Ferrari mechanics that greased it this last time said that the Klubber grease formula seems different and more viscous than it used to be. There was a guy in England that sold a kit to convert the 348 engine to a 360 solid flywheel but it’s no longer available. I never thought of welding up the dual mass flywheel. I have a single disc clutch but it doesn’t have any springs in the disc itself. Did you run without any springs at all? Thanks for the offer on the parts. I’ll reach out if mine looks bad. I’ll try another degrease with half the can this time.

    Dave
     
  10. fatbillybob

    fatbillybob Two Time F1 World Champ
    Consultant Owner

    Aug 10, 2002
    28,609
    socal
    I took all the guts out the dual mass FW. The clutch discs were stock as was the pressure plate. I had the twin disc model later changed to a single by Ferrari. One was not better than the other the the only reason to choose twin v single is if you needed the torque handling or weight savings.
     
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