07-23-2017, 06:48 PM | #23 |
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07-24-2017, 03:22 AM | #24 | |
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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 |
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07-24-2017, 06:37 AM | #25 | |
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07-24-2017, 02:38 PM | #26 |
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2 tuning options in UK
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 |
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07-26-2017, 06:17 AM | #27 |
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07-29-2017, 10:46 PM | #28 |
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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?
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07-30-2017, 11:20 AM | #29 | |
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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?
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07-30-2017, 03:08 PM | #30 | ||
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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. |
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07-30-2017, 04:27 PM | #31 | |
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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. |
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07-31-2017, 03:24 AM | #32 | |
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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.
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07-31-2017, 11:57 AM | #33 | |
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08-07-2017, 08:26 AM | #34 |
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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.
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08-09-2017, 03:54 PM | #35 |
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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.
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08-23-2017, 07:03 AM | #36 |
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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.
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08-23-2017, 09:27 AM | #37 | |
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Last edited by Amgeater2; 08-23-2017 at 10:35 AM.. |
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08-23-2017, 09:33 AM | #38 | |
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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.
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08-23-2017, 12:09 PM | #39 |
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08-23-2017, 01:05 PM | #41 | |
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From the Technical Training manual on the i8: http://www.rotory.com/bmw/I8.pdf "TheelectricalmachineintheI12providesthene cessarytorqueforthedriveatthefrontaxle.It can alsochargethehigh-voltagebatterywithelectricalenergythroughbra keenergyregeneration(energy recovery). ThedifferencestotheelectricalmachineintheI 01areminimal.Thetwovariantsonlydifferin thedesignofthehousing(flangeandassemblycon nection)andintheirperformancedata.The mountingsfortheEKKandtheanti-rollbarlinkarealsodeletedintheI12.Theele ctricalmachinein theI12providesapeakperformanceof96 kW (131 HP)andatorqueof250 Nm(184lbft).Theinner structure,theoperatingprincipleandthecooling ofthehousingareidentical." 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....
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08-24-2017, 03:17 AM | #42 |
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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.
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08-24-2017, 03:11 PM | #43 |
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08-25-2017, 02:11 AM | #44 | |
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This is what i'm telling of.
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