Emira i4 Engine & Gearbox remap
- Thread starter seoexige
- Start date
This.
I've said it multiple times, the second someone has a proven commercially viable solution ready to go, it'll be known. I happen to be in So Cal where a lot of the "experimentation" is happening and I can tell you no one out here (in so cal) has cracked the CPC and even the ECU crack has only shown that they then hit a wall with the CPC.
To date, VF is the only tuner claiming to have cracked the ECU and CPC. With that said, to quote @Andy H, they then went "very quiet!"
BTW, if we really want to know what's possible, take a look at the "Bathurst Edition" in Australia. That is essentially all software. Clearly, Lotus Cars Australia cut a deal with Lotus to somehow get access to the "suite" of modules (i.e., ECU, CPC, TCU, etc.) that run the AMG M139.
I would encourage any of our Aussie friends to go make a friend with any Lotus Cars Australia employees to see what the arrangement was and how they got this car to market.
I would encourage any of our Aussie friends to go make a friend with any Lotus Cars Australia employees to see what the arrangement was and how they got this car to market.
That's really encouraging to see what's possible with the right access and mods. Also, the fact that Lotus see fit to support this officially suggests their engineers think it's a safe level of tune. It's surprisingly good value as an upgrade on the base price. These "official" limited editions usually cost a fortune and often offer little or no performance boost over stock.
- Thread starter
- #29
Ok, long overdue update. As I previously posted, EST have successfully spent many hours refining the fueling etc to the point that the car is significantly quicker. The hold up now is as others have said, remapping the CPC. Beyond approx 440bhp the clutch packs begin to slip.
They are looking into a solution as I type this and are confident of altering the clutch pack thresholds soon. Once they can do that, expect to see 470bhp without any hardware changes, and obviously more with a decent downpipe,.sports cat, etc.
In the meantime, any i4 customers looking for a dyno proven 440bhp should give them a call.
They are looking into a solution as I type this and are confident of altering the clutch pack thresholds soon. Once they can do that, expect to see 470bhp without any hardware changes, and obviously more with a decent downpipe,.sports cat, etc.
In the meantime, any i4 customers looking for a dyno proven 440bhp should give them a call.
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Am I right in saying that “altering the clutch pack thresholds” means the CPC must be cracked? Or can this be done without cracking the CPC?
I’d speculate the figures you mentioned are applicable to an I4 that started life as a 360hp version, rather than the 400hp from factory I4.
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Would someone kindly post the ‘at wheel’ hp and NM torque figures when the transmission clutch slippage is being experienced?
At wheel (Dyno) figures give us the real world view, rather than guessing, as many do, the actual loss from the flywheel.
Thank you so much, in advance.
From our local Emira car club we have about 30 cars that got the Boomgear ecu tune, the figure is around 480 hp at the crank. 500 hp is fine if you are just a sprint driver. 470 hp is good for track use. "At wheel" (dyno) means nothing if you dun have a baseline to compare, and some dyno machines are easier to cheat than the others, so...
Thank you. Understand what you are saying. However, short of removing the engine out of the car, and bolting it directly to an engine dynamometer, it’s a guess to establish not only a baseline, but the actual gains, when all we have to work with are figures provided by a rolling Dyno.
If however we use the same machine, be it bolt on or rolling Dyno to establish base line and the same machine to give us final gain readout, guess what? Hey presto, we have a true comparison. No need to guess (‘cause that’s what it is) the percentage of loss from actual flywheel output.
Logical common sense tells us, does it not, use the exact same machine to provide before and after readouts.
A reputable and good dynamometer owner/operator should keep their machines (engine bolt-on or rolling unit) calibrated on a regular basis. Even if not so, using the same machine to establish first the baseline and secondly, any aftermarket tuning, will still provide the percentage we are looking for.
Before and after Wheel horsepower readout (from the same machine) takes out the guess work.
Thanks again for responding to my post.
Emira I4 ECU Flash Tuning is Now Possible (~510HP Turbo)
So let’s get the record straight, Emira’s ECU has not been unlocked for direct tuning. Tuners in China have tried to crack the lock for 2 years, and even sent the ECU to other part of the world and came back with no luck. However, Ryan @BoomGEAR in China came up with a different approach. He...
www.emiraforum.com
Not sure if you have read my thread regarding the first Emira turbo reaching 500 hp, but it has a compete dyno result back to back with each mod and others.
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I’ll likely wait until CPC is cracked and have a complete map etc as one, have EST given any info as to how long they think it may take them to crack the cpc?
Thanks
Yeah, I spoke the the guys months ago about this. They were even talking about flying a technician over to WA to complete the tune alongside a local tuning company.
Nice. What I'm unsure about is whether the Bathurst is a ECU tune or whether they have cracked the CPC too. I haven't driven the Bathurst Edition so I'm unsure how the manual shift changes feel. I am sick of the slow shifting.
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