▀▄ eas | ESS S55 M3/M4 Piggyback Backend ECU Software released

[tom @ eas]

Originally Posted by CSanto

This should mean pretty solid numbers with stock turbos and pump gas right?

Should be. We've got a backend flash scheduled for tomorrow morning, if they choose to dyno - we'll share the results of his configuration.

Originally Posted by apexit

With the small overrev moneyshifts posted on the forum what kind of R&D have you done on the 400rpmreadline increase?

All situations are different and a couple of isolated cases shouldn't be a reason to be paranoid, more details need to be known to get the full story. RPM limit area can remain untouched if specified in advance.

[BMW M4 PWR]

Originally Posted by tom @ eas

Should be. We've got a backend flash schedule for tomorrow morning, if they choose to dyno - we'll share the results of his configuration..

[PeterPure]

Tnx for explaining.

[ASAP]

Would it be crazy to ask what tables this specifically modifies?

[BMW M4 PWR]

Originally Posted by tom @ eas

Torque limits are lifted slightly, boost is not touched. These areas are handled by your piggyback.

For FULL control over torque management, boost and fueling, you will need to remove the piggyback and go with a flash based tune instead

Kudo's on this** ...however any reason why the FULL elimination of 'torque management' can't be achieved unless removing any piggyback and going flash-only? Thx..

ps: I'm assuming the throttle plates will stay fully opened during WOT under this back end flash as well?

[Pure Turbos]

I've seen some logs from a customer running PURE Turbos, this ESS backend flash, and JB4. It's the only flash I have seen so far that appears to be working great. Good stuff guys, nice work. PURE Approved.

Can we do this on our M4, but leave the rev limiter untouched? I prefer the OE RPM limit.

[dmk08]

Originally Posted by Pure Turbos

I've seen some logs from a customer running PURE Turbos, this ESS backend flash, and JB4. It's the only flash I have seen so far that appears to be working great. Good stuff guys, nice work. PURE Approved.

Can we do this on our M4, but leave the rev limiter untouched? I prefer the OE RPM limit.

Now we just need to be able to run full e85 all the time and it's on!

[tom @ eas]

Originally Posted by BMW M4 PWR

Kudo's on this** ...however any reason why the FULL elimination of 'torque management' can't be achieved unless removing any piggyback and going flash-only? Thx..

ps: I'm assuming the throttle plates will stay fully opened during WOT under this back end flash as well?

This is a Backend Flash, not a tune. The two are very different.

Going with the ESS T500/S1 Flash Tune (sans piggyback) will have control in this area and I'm not sure if anyone would want it eliminated completely. This area is not touched the Backend Flash. The ESS Backend Flash is expects all tuning is designed to be handled by the piggyback so there is no interference from a flash and piggyback potentially "fighting" each other.

Originally Posted by Pure Turbos

I've seen some logs from a customer running PURE Turbos, this ESS backend flash, and JB4. It's the only flash I have seen so far that appears to be working great. Good stuff guys, nice work. PURE Approved.

Can we do this on our M4, but leave the rev limiter untouched? I prefer the OE RPM limit.

Rev limiter can remain stock if desired.

[dmk08]

Originally Posted by tom @ eas

This is a Backend Flash, not a tune. The two are very different.

Going with the ESS T500/S1 Flash Tune (sans piggyback) will have control in this area and I'm not sure if anyone would want it eliminated completely. This area is not touched the Backend Flash. The ESS Backend Flash is expects all tuning is designed to be handled by the piggyback so there is no interference from a flash and piggyback potentially "fighting" each other.



Rev limiter can remain stock if desired.

Tom - When you say "updates can be done via OBD" does that mean remote people can get a cable for updates or only for local people who can come to the shop ?

Also can you remove the overrun in this flash? Sorry if I missed that.

[tom @ eas]

Originally Posted by dmk08

Tom - When you say "updates can be done via OBD" does that mean remote people can get a cable for updates or only for local people who can come to the shop ?

Also can you remove the overrun in this flash? Sorry if I missed that.

Once the bootloader is accessed, we have continued access through OBD for software updates, the DME still needs to be pulled for its initial flash and can be returned to the stock file without DME removal. Overrun removal is feature is a feature of ESS's T-500/Stage 1 and upcoming Stage II Flashes only, not with their Backend Flash.

Remote tuning is still quite some time away, won't be happening in 2015.

[lore2486]

Any info on if the throttle plate will stay fully opened during WOT under this back end flash ? I would love to see some JB4 logs of this tune and pure turbos

[sA x sKy]

Originally Posted by lore2486

Any info on if the throttle plate will stay fully opened during WOT under this back end flash ? I would love to see some JB4 logs of this tune and pure turbos

You and me both

[tom @ eas]

Originally Posted by lore2486

Any info on if the throttle plate will stay fully opened during WOT under this back end flash ? I would love to see some JB4 logs of this tune and pure turbos

No tuning areas are modified on a Backend Flash. If so, piggyback calibration will not be valid.

[RSXDC5]

Originally Posted by tom @ eas

Backend ECU software from ESS has been released for the 2015+ S55 M3/M4 for use with aftermarket piggyback controllers that control boost, etc. This targets a number of areas not accessible to piggyback type controllers for maximum performance gains.



The ESS Backend Software File offers the following options:

- Correct AFR control for higher boost pressure. AFR target is set to 12:1 under high load/boost conditions.
- Top Speed Governor (VMAX) removal
- Increased RPM limiter (+400 RPM)
- Removal of catalytic converter diagnostic functionality (for off road use only)
- Removal of Cat Heat Cycle/Cold Start (for off road use only)
- Updates can be performed via OBD2

Flashing is performed in-house at our facility in Anaheim, CA or ESS's facility in AZ.

Note: This software does not offer any performance gains without a piggyback controller installed. The piggyback ECU software intended to be used as an elevated backend platform, specifically designed for piggyback type tuning devices.

Let's put this in a real world scenario...

On my M3 I typically use the JB4 on Map 2 (with downpipes), this is a super standard setup.

As for fuel, I usually target 94oct mixes:
-91oct/torco accelerator blend
-91oct/E85 blend
-91oct/100oct blend

If I buy the ESS backend flash, besides the AFR differences you mentioned in your original post, what is different? Will I make more power? Can I run stronger E85 blends? Is the backend flash primarily for Map 6 users with custom high boost targets who use E85?

Thanks in advance!

[tom @ eas]

Originally Posted by RSXDC5

Let's put this in a real world scenario...

On my M3 I typically use the JB4 on Map 2 (with downpipes), this is a super standard setup.

As for fuel, I usually target 94oct mixes:
-91oct/torco accelerator blend
-91oct/E85 blend
-91oct/100oct blend

If I buy the ESS backend flash, besides the AFR differences you mentioned in your original post, what is different? Will I make more power? Can I run stronger E85 blends? Is the backend flash primarily for Map 6 users with custom high boost targets who use E85?

Thanks in advance!

Backend Flash will cover AFR targets only, meaning it will operate like your current setup but with more precise AFR targeting than running a stock configuration with JB4. All other tuning aspects are handled by your JB4, power gains are determined by your specific JB4 MAP/configuration and hardware modifications.

Once we start seeing more cars on the road with the Backend Flashes, we can begin to see expected power gains with standardized setups. We'll be happy to share once dynos are available.

[yellowssm]

subscribed!

[jackkk]

Is it possible to make it out he US?

How it is gonna be, if I go to the dealer to update the car, will this software delete from the car and how to install it back?

The RPM will increase to the 8000RPM? Do you have a dyno it? How much power the car does at this range?

[tom @ eas]

Originally Posted by jackkk

Is it possible to make it out he US?

How it is gonna be, if I go to the dealer to update the car, will this software delete from the car and how to install it back?

The RPM will increase to the 8000RPM? Do you have a dyno it? How much power the car does at this range?

Your DME will need to be removed and shipped to our facility in Anaheim, CA for flashing. The flash can be overwritten by the dealer, but not all dealer visits require flashing and not all updates target the DME unless your I-Level calls for one.

There are zero power gains with a Backend flash on its own, this is not a standalone tune. This is an elevated platform for your preferred piggyback controller to work from. Gains are determined by your piggyback and hardware modifications, while the ESS Backend flash will optimize AFR targets within the preferred range allowing the DME and Piggyback controller to work closer together - thus making more power.

[dmk08]

Anticipation is killing me. Any dyno updates?

[tom @ eas]

Originally Posted by dmk08

Anticipation is killing me. Any dyno updates?

Customer had ESS E-Tronic previously installed and opted for Stage 1 full flash instead.

As soon as we have some JB4 data, we'll be happy to share.

[dmk08]

Originally Posted by tom @ eas

Customer had ESS E-Tronic previously installed and opted for Stage 1 full flash instead.

As soon as we have some JB4 data, we'll be happy to share.

I would be just as happy to see it w/ the E-tronics as I'm pretty familiar with that too

Do you personally still believe a full flash is a better solution vs the back-end and any piggy?

[tom @ eas]

Originally Posted by dmk08

I would be just as happy to see it w/ the E-tronics as I'm pretty familiar with that too

Do you personally still believe a full flash is a better solution vs the back-end and any piggy?

The debates have been beaten to death, it simply depends on personal preference.

We will be running ESS's Stage 2 flash once the new turbos are installed.