Just out of curiosity I looked into E85 gas which I know is popular with tuners, and the Emira is not listed as a Flex Fuel car. It's rated for E5 or E10, but the manual specifically states to not put more than a 10% mix of ethanol in the car.
Emira JB4 Tuning Now Available for I4 & V6 Cars!
- Thread starter GRP
- Start date
I’m sorry but I read your response differently. “It’s a recipe for something bad to eventually happen” sounds like a bit of mud slinging. Seemed a bit much - especially when you don’t have any products yet. We welcome all quality vendors and appreciate all the hard work you guys put in designing and bringing things to market. Just asking to be respectful to the others here.
I have no opinion either way in relation to the JB4 and various other tunes.
I'm watching all this with interest and may do something once warranty expires, and when all of these concerns are put to bed one way or the other.
I just make the observation that you must have a very relaxed dealer.
Mine made it clear they had no issues with mods such as air intakes, cat delete, exhaust, etc., but touch the ECU in any way and you're on your own.
I don't get why a dealer would care. Doesn't Lotus have to pay for warranty work to the dealer
The dealer wouldn't care.
But as you say they wouldn't do any work under warranty unless Lotus was paying them, and the suggestion is that if you play around with the ECU and then something blows up Lotus won't cover it.
But they would probably be more relaxed about other mods provided they couldn't be proven to have directly contributed to the failure.
Well I guess the easy answer is just remove it. Just because I knew you had it but then you removed it would leave no signs of it ever existing to Lotus
I would not say they are relaxed. Ive had a relationship with them for over 20 years. Some of them worked as engineers for Lotus UK and qualified at Oxford in Mec engineering. They also are involved with Lotus engineering developing products for them(the SC1230, 1700, and 1900). They have had extensive experience with the Lotus ECU and know how they work. They are currently fitting the JB4 on a few cars when I went there a few days ago to book my car in for a service next week and discussed with them the fitting of the OBE cable through to the JB unit. They currently testing a couple of cars with the unit it them and checking operating parameters to assess if the unit is being learned down by the ECU. I`ll know more when I speak to them when I get my car back after the service.
You may be right, but I doubt it's that simple.
I wouldn't be remotely surprised if there is some trace left somewhere that shows something had been done.
Not to mention, if you think Lotus and / or dealers don't read this stuff you should think again.
I once had a throwaway comment (amongst hundreds of others) I made on a Ferrari forum quoted back to me and I never quite got the same treatment from the dealer after that...
So I suspect Lotus know exactly who has done what to their cars, regardless of how the car may present to the dealer when taken in for work.
Because all warranty works have to go through Lotus Hethel and most of the time requires a live connection to HQ for data analysis. If HQ denies your warranty claim, your dealer will get nothing for the work they already did.
Your dealer is indeed very chill and relaxed, giving the fact they are installing a piggyback system as a dealer. One of my friends was rejected for warranty on his defective injectors, and the reason was that Lotus Hethel had proof a piggyback was installed from the data they pull.
I can't believe how people still believe things like these are undetectable...You may be right, but I doubt it's that simple.
I wouldn't be remotely surprised if there is some trace left somewhere that shows something had been done.
Not to mention, if you think Lotus and / or dealers don't read this stuff you should think again.
I once had a throwaway comment (amongst hundreds of others) I made on a Ferrari forum quoted back to me and I never quite got the same treatment from the dealer after that...
So I suspect Lotus know exactly who has done what to their cars, regardless of how the car may present to the dealer when taken in for work.
Exactly.
I have nothing against this type of development for our cars (quite the opposite) but people really need to go in with their eyes open.
The thought that you could do whatever you want and then if your car blows up just reverse it, pretend it never happened, take it to the dealer and it’ll be covered is naive to say the least.
Especially if you post it on a public forum.
Trust me. Lotus and your dealer know exactly who you are and what you’ve done to your car.
If you’re going to do this, you need to have the attitude that some owners clearly have - if it blows up it’s on me.
I’ll wear the cost and I’m happy to take the risk.
If you’re not prepared to have that attitude, think again.
Or at least wait until the warranty is over.
My senior service advisor at my local dealer suggested I go back and do an injector test before I install my JB4. I will follow his advice just to be safe as there are at least 4 cars waiting for their injectors warranty claims. There is a total of 50ish Emira locally with a few that already got their injectors replaced, a 10% failure rate is quite high imo. And if it fails again after I installed my JB4, I don't mind paying out of my pocket because I am aware of the risk involved.
I have my Emira scheduled for 1,000 mile service week and I will certainly inquire about the injector issue.
News to me
I was told by a very reliable source that part/component quality in some areas of the Emira are not as good vs, the Evora.
O2 sensors being one example.
Maybe injectors as well???
News to me
I was told by a very reliable source that part/component quality in some areas of the Emira are not as good vs, the Evora.
O2 sensors being one example.
Maybe injectors as well???
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I would hope any tuner, including piggyback developers, would measure injector flow rates....increase boost, increases air which in turn increases the need for more fuel.
Not enough fuel causes lean conditions and eventually problems including the fuel pump, quite linear...but you guys prolly know this anyway.
And dealing with my local lotus dealer for a simple tire warranty, there's no way they won't recover boost logs to bounce any warranty claims.....I've lost trust in my lotus dealership and by extension, hethel.
Not enough fuel causes lean conditions and eventually problems including the fuel pump, quite linear...but you guys prolly know this anyway.
And dealing with my local lotus dealer for a simple tire warranty, there's no way they won't recover boost logs to bounce any warranty claims.....I've lost trust in my lotus dealership and by extension, hethel.
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There's not a "quality" difference, just a supplier difference. Some people seem to believe that the country of origin is relevant to parts quality, which is a strange position to take in 2025.I have my Emira scheduled for 1,000 mile service week and I will certainly inquire about the injector issue.
News to me
I was told by a very reliable source that part/component quality in some areas of the Emira are not as good vs, the Evora.
O2 sensors being one example.
Maybe injectors as well???
Rayjoedef
[ any tuner, including piggyback developers, would measure injector flow rates....increase boost, increases air which in turn increases the need for more fuel.]How does a piggyback add more fuel with only two connections / overrides. Think this is what VF tuner is stating. The Toyota ECU may not have stored conditional maps to address all the conditions that the overrides introduces...
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