[StefVan]

NEW - Specific SEB ECU Version for permanently disabling the E-DIFF on the Ferrari F430 - Scuderia - 16M

Since specialized workshops encounter more and more failing E-DIFF differentials (internal hydraulic pressure losses, internal hydraulic leaks mixing with the transmission oil, air leaks entering the hydraulic system, worn friction disks, hydraulic fluid contaminated with differential metallic fillings, random E-DIFF errors, etc.), they asked us to develop a simplified version which permanently disables the E-DIFF whatever the Manettino position is. The cost to replace the entire differential is prohibitive in terms of parts (complete differential #238598 - no individual spare parts) and work hours (transmission out repair). In this case, they and their customers prefer to fix the issue by disabling entirely the E-DIFF, remove the hydraulic hoses and plug the holes at the differential and Power Unit. The E-DIFF ECU itself can also be removed as it will not used anymore.

With this specific SEB ECU version, the E-DIFF will never be activated anymore, no errors will appear on the instrument panel and the car won't go anymore in limp mode because of E-DIFF issues. That's why this SEB ECU version does not have a remote control unit and also does not have the wire harness towards the E-DIFF ECU. It simply plugs directly on the E-DIFF wire harness which has been unplugged from the E-DIFF ECU.

If you need to permanently deactivate the E-DIFF, then this specific SEB ECU version is the right option for you.

SEB - Smart Ferrari F430 E-DIFF Bypass ECU

This complex Plug&Play micro-processor based electronic device will allow you to DISABLE entirely the Ferrari E-DIFF System depending on the Manettino setting.

www.scuding.com

 

[StefVan]

Another testimonial from a German/Italian customer who had constantly F1 issues (jumping in neutral, gear misses) where we diagnosed the root cause being the E-DIFF (internal hydraulic leaks). Since he installed the SEB ECU, no more issues at all and he could even upgrade his tires 235 front/295 rear without any issues affecting the E-DIFF. Thank you Tony for sharing your impressions

"I came back from holidays. I traveled with my Ferrari about 4000km since I installed your SEB-ECU. I have not had any problem... both with the Manettino in SPORT position and in RAIN position even with front tires 235 and rear 295 the car goes beautifully. Thank you so much for helping me solve several problems and with all your updates it has become a modern Ferrari of the latest generation. Thank you so much ..."

and from a USA 2009 Scuderia owner:
"Very easy install! Turns out I don’t like the Ediff at all and prefer it disabled for a more consistent feel. I didn’t realize the “twitchy” feeling while turning was the Ediff trying to help. You seem to really go deep on the electronics on these cars!"

SEB - Smart Ferrari F430 E-DIFF Bypass ECU

This complex Plug&Play micro-processor based electronic device will allow you to DISABLE entirely the Ferrari E-DIFF System depending on the Manettino setting.

www.scuding.com

 

[StefVan]

SEB - SMART E-DIFF BYPASS ECU installed on a Ferrari 430 Scuderia. This car as many others had E-DIFF issues causing the F1 to fail by lack of hydraulic pressure.

We had also another case recently where a Swiss official dealer installed the SEB ECU after having diagnosed an important internal E-DIFF differential issue on an owner's F430. The SEB ECU put this car back on the road, no more issues.

Read more here: SEB - Smart Ferrari F430 E-DIFF Bypass ECU

 

[RH67]

I believe that the original Bypass ECU will be my next buy, soon.

 

[StefVan]

If you have a Ferrari F430-Scuderia-16M, you really should consider the SEB ECU (E-DIFF Bypass ECU) as already many owners did.

Unfortunately, the E-DIFF system will not last forever and when it fails, it gets very expensive to repair, if repairable. That's why already many "Permanent disabled" SEB ECU versions have already been installed by workshops to avoid the entire replacement of the differential. Every week, we hear from workshops where the E-DIFF hydraulic fluid leaks into the transmission oil.

At the other hand, the pessimistic constant "braking" E-DIFF deprives you of what really a Ferrari should be...

Set your car free, make your F1 happy and save your E-DIFF for when you really would need it! It's 100% Plug & Play and installs in minutes.

Some testimonials: SEB - Smart E-DIFF Bypass ECU - Testimonials - SIS Techno - Scud Ing Swiss

SEB ECU: SEB - Smart Ferrari F430 E-DIFF Bypass ECU

 

[StefVan]

When disabling entirely the Ferrari F430 E-DIFF system, we recommend to remove both IN and OUT hydraulic hoses, the solenoid valve and the pressure sensor. The hydraulic hoses can be easily and entirely removed from the quick couplings at the Power Unit side. It's important to disconnect or remove also the E-DIFF ECU.

We offer now a kit of 4 specifically manufactured blanking plugs made of high quality A4 stainless steel. Each blanking plug is equipped with a specific Viton high heat resistant O Ring seal (-20°C to +200°C).

More details here: SEB - Smart Ferrari F430 E-DIFF Bypass ECU

 

[AFR]

Hi Stef,
Also fitted the E-Diff Bypass ECU and all is good. If I fit the E-Diff blanking plugs, how much ATF must be left in the diff?
Is the Pressure sensor circuit part of the E-Diff ECU? Thanks, TONY.

 

[StefVan]

Hi,
Great you installed the E-DIFF Bypass ECU, thanks. Once you remove the E-DIFF solenoid valve, almost all hydraulic fluid (or ATF) will flow out, there will be very little left.
Yes, the E-DIFF pressure sensor which is wired to the E-DIFF ECU is also part of the items that can be removed, then plugged with the smallest blanking plug. The kit has all 4 plugs you need to plug off all holes safely:

• E-DIFF high pressure blanking plug (IN) - Hexagon 19mm
• E-DIFF low pressure blanking plug (OUT) - Hexagon 17mm
• E-DIFF solenoid valve blanking plug - Hex socket 10mm
• E-DIFF pressure sensor blanking plug - Hexagon 14mm

Hi Stef,
Also fitted the E-Diff Bypass ECU and all is good. If I fit the E-Diff blanking plugs, how much ATF must be left in the diff?
Is the Pressure sensor circuit part of the E-Diff ECU? Thanks, TONY.

 

[AFR]

Hi Stef,
But from a reliability point of view, is it necessary to leave some hydraulic fluid in the diff ?
Thanks, TONY.

 

[StefVan]

Yes Tony, I recommend to leave some hydraulic fluid in the differential, not much is needed, just a bit enough to keep the internals getting dry.

Hi Stef,
But from a reliability point of view, is it necessary to leave some hydraulic fluid in the diff ?
Thanks, TONY.

 

[bmw2522]

hi
after reading all the posts and the item description, it's still not clear if a differential becomes open or LSD after disabling e-diff.
Feels like a diff won't be able to lock up and will be 100% open. Which reduces understeer but is not great for the track.
StefVan, could you clarify this please

 

[theflash32]

100 percent open based on design..

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[bmw2522]

100 percent open based on design..

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thanks, then I truly don't see a reason besides reliability.
And on their website they claim that it will lock with e-diff off, which is a bit of a false statement.


I'm looking into getting an f430 challenge ZF LSD and using this bypass to turn the e-diff off. but the conversion seems costly, around 10k for the parts only

 

[StefVan]

No false statement on our website at all, it will never be "100% open based on design".

"Even disabled, the E-DIFF differential will always continue to offer minimal mechanical limited slip. Indeed, the E-DIFF differential is, just like any LSD, of conical type with discs and ramp angles which generates significant internal friction."

That means when the E-DIFF is disabled, the differential is still close to a regular LSD but will less lock (depending on the condition & wear of the diff). That's the theory. Practically speaking we have enough experience and positive feedback from track users that inner wheel will never spin if you know what you're doing and use the right track tires.

SEB - Smart E-DIFF Bypass ECU - Testimonials - SIS Techno - Scud Ing Swiss

SEB - Smart E-DIFF Bypass ECU - Testimonials

www.scuding.com

thanks, then I truly don't see a reason besides reliability.
And on their website they claim that it will lock with e-diff off, which is a bit of a false statement.


I'm looking into getting an f430 challenge ZF LSD and using this bypass to turn the e-diff off. but the conversion seems costly, around 10k for the parts only

 

[theflash32]

I feel that people will be misled by your statement

The Ediff diff is not a LSD diff when deactivated.. will it have some (tiny) friction ..yes just due to having clutch plates inside but not a LSD ..

I think you may have said the same thing to Ray ..look below

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[StefVan]

"100% open based on design" is what you wrote and which mislead people. I always stated that there will always remain friction well enough to lock a spinning wheel. Anyway, if someone what's a real LSD, there are aftermarket solutions to do so or use the ZF LSD...Anyway the point of our SEB solution is not here, it's to make the F430 well more reliable and much better to drive...and that has also been 100% proven. Why do you think a lot workshops, including officials are rushing to buy our SEB ECU before it's gets out of stock (very soon)?

 

[theflash32]

I agree on the purpose as you state( more reliable and to "fix" issues within the system e.g. bad solenoids , internal leaks etc) ..and additionally for the record i will state 99 percent open as it is not designed as a LSD but has some inherent friction from clutch plates when not engaged by hydraulic pressure of the ediff solenoid


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[StefVan]

Sorry but 99% is just a guess. We've measured the lock torque of several hydraulically failing F430 differentials on a bench and came to very decent results, which translates well more than just 1%. It's certainly not a totally "open" differential without the E-DIFF. When you dismantle a F430 differential, you'll understand what I mean and why mechanically this differential is not totally open. It is definitely designed almost as a LSD. The hydraulic part called E-DIFF is just adding the possibility to lock at any time the E-DIFF ECU decides to do so depending on different factors which are not mechanically related.

 

[theflash32]

I look at the tech diagrams / schematics but if you took it apart that is better than any technical schematics

Thanks

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[bmw2522]

I look at the tech diagrams / schematics but if you took it apart that is better than any technical schematics

Thanks

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Sorry but 99% is just a guess. We've measured the lock torque of several hydraulically failing F430 differentials on a bench and came to very decent results, which translates well more than just 1%. It's certainly not a totally "open" differential without the E-DIFF. When you dismantle a F430 differential, you'll understand what I mean and why mechanically this differential is not totally open. It is definitely designed almost as a LSD. The hydraulic part called E-DIFF is just adding the possibility to lock at any time the E-DIFF ECU decides to do so depending on different factors which are not mechanically related.

thanks Stef and theflash32 for clarifying.
btw Stef, definitely no offense to your product, it is awesome, and thank you so much for developing such solutions, ownership experience of f430 would be miserable without companies and products like yours!

I think what could help people is to understand ramp angles and lockup percentages of a diff with e-diff off. but it's probably a lot to ask / not easy to obtain.

that being said I'm still definitely ordering a SEB, it is awesome, but will look for an upgrade to a full LSD for the track.

Stef you mentioned there are aftermarket solutions for LSD and also a ZF LSD. I wasn't able to find any aftermarket solutions, would you have any recommendations?