[Jo-Sta07]

Originally Posted by JasH

Someone on the Munich run:




Remember that there is an upper limit, due to the maximum RPM of the electric motor. 160mph might well be it.

That's what I was thinking. I was surprised by how easily the car did 158 though.

[phoenixcsl]

Originally Posted by ericsi

Hi Phoenixcsl, would you mind elaborating a little more pls? What sort of gains did you get in bhp / torque terms?

How was the work carried out? Ecu tune only?

Cost?

What happens if you get a software update at the dealer? Do they re flash your ecu for free?

Any fuel consumption change?

Would love to hear more.

Cheers,

Eric.

Hey mate,

Sorry, not been on for a few days so didn't reply, wasn't being rude

1. Power gains, they were unable to rolling road the car due to having a new dyno cell being built at the time unfortunately, BUT seat of the pants dyno, the car is quicker, it's faster than my friends i8 which is standard.

2. You would have to speak to Martin @ Quantum, I got a special deal as I was the first i8 they did in the UK last year.

3. ECU is removed from the vehicle and then tune applied to it, so yes ECU tune only.

4. Yes, I've had software updates at my dealer and they re-flashed my ECU for free

5. Fuel consumption wise, i'm averaging 37.8mpg since I've had the car, I don't tend to drive the car as economically as I could, the mpg isn't much different to when I had the original map, but the car is quicker, if I drove more frugally I'm sure i'd be averaging over 40mpg with ease. To be honest the car is super economical for something with 350bhp+ as standard.

Let me know if you need more info, or if you fancy a trip to Surrey, i'll take you out in it and you can see the difference

[ericsi]

Originally Posted by phoenixcsl

Hey mate,

Sorry, not been on for a few days so didn't reply, wasn't being rude

1. Power gains, they were unable to rolling road the car due to having a new dyno cell being built at the time unfortunately, BUT seat of the pants dyno, the car is quicker, it's faster than my friends i8 which is standard.

2. You would have to speak to Martin @ Quantum, I got a special deal as I was the first i8 they did in the UK last year.

3. ECU is removed from the vehicle and then tune applied to it, so yes ECU tune only.

4. Yes, I've had software updates at my dealer and they re-flashed my ECU for free

5. Fuel consumption wise, i'm averaging 37.8mpg since I've had the car, I don't tend to drive the car as economically as I could, the mpg isn't much different to when I had the original map, but the car is quicker, if I drove more frugally I'm sure i'd be averaging over 40mpg with ease. To be honest the car is super economical for something with 350bhp+ as standard.

Let me know if you need more info, or if you fancy a trip to Surrey, i'll take you out in it and you can see the difference

I am actually in Surrey near Kenley, would love if you could take me out for a quick spin. Where are you based in Surrey?

[JasH]

Just to consolidate and put both direct links in one post, for reference purposes

https://www.celtictuning.co.uk/servi...e-1#t3-content




http://www.quantumtuning.co.uk/ecu-r...1kWh - 362-BHP

[phoenixcsl]

Originally Posted by ericsi

I am actually in Surrey near Kenley, would love if you could take me out for a quick spin. Where are you based in Surrey?

Are you? You're not far at all mate!

I'm in Redhill, so literally just down the road!

Give me a PM and pop over

[Emon Crew]

Not to sound like a troll or knock anyones tunes here, but I feel like the ECU re-flashes that are getting done are giving minimal power boosts. I haven't seen any dyno's of results and I'm willing to bet it's because there isn't a significant upgrade in hp/tq. I say this because ideally, if I were a company tuning and did a flash/tune that gave great power output, I'd be sure to post the results. Anywhere and Everywhere thus far, I've only seen excuses as to why there's no Dyno (there's 2 different motors, the car is complicated, the dyno wasn't working, etc...). Correct me if I'm wrong here, but in order to have Dyno numbers for WHP, all you really need is 4 wheels and a Dyno right?

[NGR]

Originally Posted by Emon Crew

Not to sound like a troll or knock anyones tunes here, but I feel like the ECU re-flashes that are getting done are giving minimal power boosts. I haven't seen any dyno's of results and I'm willing to bet it's because there isn't a significant upgrade in hp/tq. I say this because ideally, if I were a company tuning and did a flash/tune that gave great power output, I'd be sure to post the results. Anywhere and Everywhere thus far, I've only seen excuses as to why there's no Dyno (there's 2 different motors, the car is complicated, the dyno wasn't working, etc...). Correct me if I'm wrong here, but in order to have Dyno numbers for WHP, all you really need is 4 wheels and a Dyno right?

Was looking on Celtic Tuning's site and they've posted a graph from a 2015 i8...

https://www.celtictuning.co.uk/compo...e-1#t3-content

You need to click the "View Chart" button.

I'm with you when it appears a few people have had the tune but no rolling road session. For me, Celtic would come to my house and rip out the ECU so I wouldn't have a dyno test either. I'm sure a few people could post before and after 1/4 mile times or simple 0-60 times to back up the claims?

[skinrock]

Originally Posted by Emon Crew

Not to sound like a troll or knock anyones tunes here, but I feel like the ECU re-flashes that are getting done are giving minimal power boosts. I haven't seen any dyno's of results and I'm willing to bet it's because there isn't a significant upgrade in hp/tq. I say this because ideally, if I were a company tuning and did a flash/tune that gave great power output, I'd be sure to post the results. Anywhere and Everywhere thus far, I've only seen excuses as to why there's no Dyno (there's 2 different motors, the car is complicated, the dyno wasn't working, etc...). Correct me if I'm wrong here, but in order to have Dyno numbers for WHP, all you really need is 4 wheels and a Dyno right?

Originally Posted by NGR

I'm with you when it appears a few people have had the tune but no rolling road session. For me, Celtic would come to my house and rip out the ECU so I wouldn't have a dyno test either. I'm sure a few people could post before and after 1/4 mile times or simple 0-60 times to back up the claims?

I think it's a fair question, and not entirely trollish, but there are examples in this very thread. Amgeater shared quite a few results which I think give some pretty good insight into the performance. As for myself, I don't do runs like that, but as previously stated I was able to get my best 0-60 from 4.5 down to 4.0 flat (with the caveat that it wasn't back-to-back runs).

Personally, I think dynos are only useful for tuning purposes. Getting numbers doesn't mean a whole lot - the drivability and real-world performance is what matters. You can have a 700 rwhp car with such a peaky torque curve that it's hardly any fun out on the street. That said, I know you're just looking for comparison purposes, but I would say you can expect improvements in the 10-15% range depending on who you go with and the fuel octane available to you. Gotta remember they are only boosting that 1.5l ICE in the rear...can't expect a lot.

And therein lies the likely reason behind not seeing any charts besides the one or two from a couple of the companies. It's just not really worth the time, effort, cost or risk. At the very least you need an AWD dyno, which not everyone has. Just having a dyno isn't everything, though - I'm not going to take mine to some Civic or Subie shop that has no experience with the i8 (your point about it being complicated shouldn't be glossed over). Gintani didn't have a dyno at the time I was there - they had recently bought a new one that was in the process of getting installed.

Adding up the time and cost just to get them to tell me it puts down 360/420 to the wheel...not enticing to me. I would rather just drive it and enjoy it. That's my two cents.

[JasH]

Originally Posted by NGR

Was looking on Celtic Tuning's site and they've posted a graph from a 2015 i8...

https://www.celtictuning.co.uk/compo...e-1#t3-content

You need to click the "View Chart" button.

I'm with you when it appears a few people have had the tune but no rolling road session. For me, Celtic would come to my house and rip out the ECU so I wouldn't have a dyno test either. I'm sure a few people could post before and after 1/4 mile times or simple 0-60 times to back up the claims?

Those charts are from an i8 owner I know, who is on here. I will let him comment if he wishes to. But he has told me the extra power is noticeable.

I've not personally driven his i8, or run it side by side with mine yet though.

[NGR]

Originally Posted by JasH

Those charts are from an i8 owner I know, who is on here. I will let him comment if he wishes to. But he has told me the extra power is noticeable.

I've not personally driven his i8, or run it side by side with mine yet though.

I'm on the fence at the moment about a re-map. If the electric motor could be unlocked at the same time then I'd jump in and also widen the front rubber accordingly.

As it stands, not sure I'd personally notice much difference with the crappy traffic and roads in England. I had a 635d remapped from 282bhp to 325bhp with torque over 500 ft lbs (verified by back-to-back dynos) and I couldn't honestly say I noticed the difference.

The i8 is a lighter car though so probably more noticeable with a similar bump in power.

[Amgeater2]

Originally Posted by Emon Crew

Not to sound like a troll or knock anyones tunes here, but I feel like the ECU re-flashes that are getting done are giving minimal power boosts. I haven't seen any dyno's of results and I'm willing to bet it's because there isn't a significant upgrade in hp/tq. I say this because ideally, if I were a company tuning and did a flash/tune that gave great power output, I'd be sure to post the results. Anywhere and Everywhere thus far, I've only seen excuses as to why there's no Dyno (there's 2 different motors, the car is complicated, the dyno wasn't working, etc...). Correct me if I'm wrong here, but in order to have Dyno numbers for WHP, all you really need is 4 wheels and a Dyno right?

LMAO Great post

[Longboarder]

Thanks for the replies everyone.

I recall someone installed a piggy back tune and it quickly caused a CEL and shortly thereafter the owner received a call from BMW to bring the car in.

Perhaps this was the only piggy back tune tried. Everyone who is tuned - are you guys flashed? And has anyone with a flash tune had a CEL or any other related issues?

Cheers.

[carlos@velosdesignwerks]

If anyone has any questions about the tune feel free to PM, email at stephen@velosdesignwerks.com or call the office at 7864016520 will be more than happy to answer any questions you may have.

[Rostman]

My opinion is to tune the i8 without touching the electric motor is unacceptable. You can easily increase the power output with electric engine just with press a few buttons without any damage to the motor (may be discharge will be a little quicker). This is the biggest tune improvemenet.

[Amgeater2]

Originally Posted by Rostman

My opinion is to tune the i8 without touching the electric motor is unacceptable. You can easily increase the power output with electric engine just with press a few buttons without any damage to the motor (may be discharge will be a little quicker). This is the biggest tune improvemenet.

well if it's so easy as you make it sound, why you haven't come up with the solution....since its as easy as just pushing a couple of bottons. if you do please keep me in mind

[NGR]

Originally Posted by Amgeater2

well if it's so easy as you make it sound, why you have come up with the solution....since its as easy as just pushing a couple of bottons. if you do please keep me in mind

Can't be harder than that surely

I suspect the software is very well encrypted and a nightmare to unlock, however the technical training manual indicates the e-motor is indeed the one from the i3.
If anyone unlocks it, I'd want to see what impact it has on the battery cycling not to mention any heat issues on the motor and cables. Even if the motor is the same as the i3, the cabling, cooling and battery management could well be different on that car.

[JasH]

Originally Posted by NGR

however the technical training manual indicates the e-motor is indeed the one from the i3.

I specifically asked the senior i Division engineer about this in Munich and he categorically stated it was not the same as the i3 motor.

I will ask again in Leipzig next week

[Aye-eight]

Originally Posted by JasH

I specifically asked the senior i Division engineer about this in Munich and he categorically stated it was not the same as the i3 motor.

I will ask again in Leipzig next week

Nobody on here who has access to the part numbers?

[NGR]

Originally Posted by JasH

I specifically asked the senior i Division engineer about this in Munich and he categorically stated it was not the same as the i3 motor.

I will ask again in Leipzig next week

Good man Always useful to know for definite!

From the Technical Training manual on the i8:

http://www.rotory.com/bmw/I8.pdf

"The
electrical
machine
in
the
I12
provides
the
ne cessary
torque
for
the
drive
at
the
front
axle.
It
can
also
charge
the
high-voltage
battery
with
electrical
energy
through
bra ke
energy
regeneration
(energy
recovery).
The
differences
to
the
electrical
machine
in
the
I 01
are
minimal.
The
two
variants
only
differ
in
the
design
of
the
housing
(flange
and
assembly
con nection)
and
in
their
performance
data.
The
mountings
for
the
EKK
and
the
anti-roll
bar
link
are
also
deleted
in
the
I12.
The
ele ctrical
machine
in
the
I12
provides
a
peak
performance
of
96 kW (131 HP)
and
a
torque
of
250 Nm
(184
lb
ft).
The
inner
structure,
the
operating
principle
and
the
cooling
of
the
housing
are
identical."

So, the housing and the performance data are different.
The part numbers will be different but it doesn't specify if the performance data is different (i.e. lower) due to software or hardware....

[Rostman]

Originally Posted by Amgeater2

well if it's so easy as you make it sound, why you haven't come up with the solution....since its as easy as just pushing a couple of bottons. if you do please keep me in mind

Because i'm not the technical guy who can provide that solution, but i have seen here on forum some thread where some company was telling they are adjusting the torgue of the E-motor.

[JasH]

Originally Posted by Rostman

i have seen here on forum some thread where some company was telling they are adjusting the torgue of the E-motor.

I'm pretty sure it was not the e motor, only the ICE.

[Rostman]

Originally Posted by JasH

I'm pretty sure it was not the e motor, only the ICE.

This is what i'm telling of.

Originally Posted by EndBosS

I am getting some emails on what we do and if it is legit, so let me show you some screens:

screenshot sw:



screenshot from the ID in the software: i12 is the internal name for the i8 platform)




some of the parameters we changed:

• ignition
• lambda
• speed limit
• load limit
• boost pressure limit + compression ratio limit
• load demand
• torque limits drivetrain
• torque demand
• torque limit E-motor
• ...