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  1. J

    Fuel Choices

    The E is maximum ethanol content as is up to 10% in E10 the U.S. standard in pump gas regardless of regular/mid or premium grades. The important thing here is to never exceed E10 and less is best for a given octane. Ethanol content does not correlate to a octane level, other than that Ethanol...
  2. J

    EPA Fuel Economy data / Road force

    20 mph is all tire rolling resistance not aero drag.
  3. J

    Exhaust Options Index

    I've had the GRP Ti rear muffler on for over 1000 miles, while I cant compare it to a standard exhaust Emira as the dealer installed it along with Miltek valve controller, I can compare it to an older Evora fitted with header, mid cat and factory Ti exhaust. The Emira has more drone, while the...
  4. J

    Exhaust Options Index

    $2700 for installation is rape, however if the exhaust swap included a Tip change then the hours do build up as the rear bumper must be removed.
  5. J

    JUBU Group Buy 15% discount

    Not a constructive comment, but I laughed when I saw a post saying the the ECU was a 15 minute swap out.
  6. J

    USA/Canada Delivery Thread

    Months later, there is no connection between the EPA and CARB review boards, each in the independent bureaucracies with their own workload and schedule. while this may have some truth, the statement that they will build MY2024 cars in 2025 is impossible. This is not permitted by any major...
  7. J

    Latest Emira Production Update

    A few dozen i4's arrived in US near end of August along with the first V6 automatics.
  8. J

    I4 Delivery Date USA/Canada Updates

    Manufactures destination change is a standard add on to MSRP by manufacturers. While they (automobile manufacturers) set their own fa level. It is a standard charge to cover car shipping and prep to the dealers door.
  9. J

    LOTUS EMIRA ─ ECU Tuning options

    Same OE ECU hardware, but the code is definitely different between markets as dictated by regulations. At leases 3 variations, EU & ROW (maybe UK is different now), China and North America (US, Canada, Mexico & Caribbean Islands)
  10. J

    JUBU Performance Brake Cooling System

    Steep, but very well designed and easy install.
  11. J

    JUBU cooling upgrade 2GR

    While Jubu makes great stuff I think it is far to premature to suspect cooling problems on the Emira, at least on the V6 configurations. We run these cars on tracks in Texas in 100-110 ambient are temps and typically 140 (60C) air temps above the track pavement. The only coolant thing Ive...
  12. J

    JUBU cooling upgrade 2GR

    It is not the muffler that puts heat into the engine bay, but rather the exhaust manifolds with intergral Cats.
  13. J

    Dark Verdant Lotus Emira Photo Thread

    Only 1684 days since I made first deposit on this Gamma Project
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    1AC1430C-E12C-4A18-98A0-8B1C60C7F506.png

  15. J

    Exhaust upgrade on v6? You need to know this (real life experience and Lotus dealership input)

    He is being constructive. No gear ratios change between modes. All that changes, and our ears perceptive as a change on exhaust opening, is that both idle speed and redline are increased in sport/ track modes, thus increasing engine exhaust pitch and opening the value a hair.
  16. J

    Dallas Emira Owners

    I have no details to give
  17. J

    Dallas Emira Owners

    Yes we exist on a very low level.
  18. J

    USA/Canada Delivery Thread

    Some 45 Emiras arrived 8/23 and are in port processing while seems that some have been released.
  19. J

    Eventuri development

    the GT4 also uses a larger throttle body and larger SC. Just saying anything is possible, but reaching out for a quick solution will not always be compatible.
  20. J

    USA/Canada Delivery Thread

    I have 4232 6AT confirmed in port.
  21. J

    JUBU Group Buy 15% discount

    Thank god, someone that understands the North American octane scale of AKI vs European RON and the approximate relationship. A decade ago I purchased a Komi-tec kit and they insisted on knocking back the timing to account for our "poor" gas. No, no it's the same stuff
  22. J

    i4 wih 400HP - post from another Lotus Forum

    Until Euro 7 is enforced, maybe mid 2025, the US is still the toughest emission standards of the world. 1) CARB, 2) EPA. It takes a bit more than pushing the Chinese market software onto the U.S. model to meet the power and emissions levels and a reason that we never got the M139 in an A45S...
  23. J

    Emira V6 Getting Phased out in USA?

    You are very correct on how base vs FE works. Now as to some premium items such as leather interior filtering down to the base model has been observed in the Evora as a market region variation. The US never got the base-base that Europe and other parts of the world saw. I would though hope...
  24. J

    The Gator thread

    Most any business keeps the whereabouts/actions of their employees confidential, be it on vacation or a business trip.
  25. J

    Eventuri development

    Yes according to an Evora notice put out by Lotus to their service centers.
  26. J

    GRP Emira Decat Pipes Now Available!

    That is BS Bot talk as horsepower is a product of torque times rpm. You can not have one without the other.
  27. J

    USA/Canada Delivery Thread

    Ouch, he weighted it at 3248 lbs with 3/4 tank of gas, while his McLaren 765 LT Sypder was 85 lbs lighter. My Evora 410 is at 3040 lbs with a full tank. If Emira has the same fuel tank as Evora 15.85 US gals then Emira laden goes up to 3272 lbs ... 232 lbs heavier. Glad i'm keeping the 410...
  28. J

    Eventuri development

    Lotus uses Toyota Super Long Life Coolant. While I would not trust it for the 10 year life span, I believe its safe for a 4 yr drain and refill interval. I even use that cycle on my track cars. Now back fluid is another matter, that corrosive stuff I change annually if not more often.
  29. J

    USA/Canada Delivery Thread

    Yes we were told that. Now the word is that Lotus wants to wrap up the First Editions in 2024 model year, not roll into a third year. After all don't they want to be delivering Base models followed shortly by S and R's. Does it really matter what they label it as? If they label a 2025 model...
  30. J

    Emira debut at British GT Championship today

    Average results in GT4 class of 16 cars. Race 1 finished 7th and 13th and race 2, 8th and 9th.
  31. J

    Aerie Ti Emira exhaust installation

    Magnesium wheels would be a huge cost and issue of air tightness for a weight savings of 34 lbs total over stock at best (or 16 lbs lighter than GRP's S-10 wheel)(magnesium alloys have a density of 69% of aluminum alloys) and this assumes the wheel structure is not thickened to make up for the...
  32. J

    Aerie Ti Emira exhaust installation

    I've ordred the GRP Ti exhaust, now awaiting on the car to arrive. Saves 8 kg and Greg has posted some videos of the system starting and running with the muffler and decat.
  33. J

    DFW PPF Installers List (Please add yours!)

    I hope that is a hi quality nano-ceramic including windshield
  34. J

    Non BLACK PACK exhaust tips??

    This part number seems to have been discontinued and now replaced by a part at double the cost.
  35. J

    Non BLACK PACK exhaust tips??

    Actually the tips are available from Lotus in three "colors". Bright silver (889162783108S, ... 3308S), matt black 889162783120B, ... 3320B), and dark metallic grey (889162783116G, ... 3316G). All are SS and cost about £260 for the pair.
  36. J

    Eventuri development

    Yes. And while the intake will void warranties (they even sent out a letter stating such on etc Evora) it doesn't void everything on your powertrain. They have seen issues with data transmitted between the ECU and the TCU (automatics), where the TCU is trying to calculate torque levels, but is...
  37. J

    Best tyre pressures for road and track

    This has been Lotus recommendation on the Evora models. In fact their owners manual said to start at the street cold pressure setting, warm up tires with a few laps and then bleed back down.
  38. J

    Stock Emira Wheels and Tires

    Just saying how mechanical engineering works in calculating tightening torques to set a clamping force by stretching a fastener to some percentage of tensile capacity, which depending on the application may be below or at the yield point and thus the reason some fasteners, such as TTY head bolts...
  39. J

    Stock Emira Wheels and Tires

    Except lubricating threaded connects results in over-stretching as the torque figures are based on dry steel-on steel friction.
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