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Thread: Transmission Tuning for JLR ZF; 6HP26, 6HP28, 8HP70

  1. #11
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    Quote Originally Posted by Cambo@oldjaguar View Post
    Looks like I'll be in Adelaide 1st-3rd December.
    Looks like I will be going to Adelaide then Transmission Tuning for JLR ZF; 6HP26, 6HP28, 8HP70Transmission Tuning for JLR ZF; 6HP26, 6HP28, 8HP70
    Cheers
    Tombie

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  2. #12
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    I had the latest engine and gearbox updates done to my MY12 which made significant improvements to both and city drivers may better appreciate more spirited performance than country drivers, but a chance to drive one that's been done might be enlightening.
    MY12 RRV 4.4 TDV8 AB, +LLAMS, +e-diff, +ACC stop/go. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
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  3. #13
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    Quote Originally Posted by Tombie View Post
    Looks like I will be going to Adelaide then Transmission Tuning for JLR ZF; 6HP26, 6HP28, 8HP70Transmission Tuning for JLR ZF; 6HP26, 6HP28, 8HP70
    Was very nice to meet you mate, and thanks for making the trip over.

    So what do you think of the transmission tune?
    Freelander 2 HSE 3.2L - BUILD THREAD
    Jaguar XKR 4.2L S/C - Jaguar XJR 4.2L S/C - MINI Cooper S

    Old Jaguar Australia - www.facebook.com/oldjaguarau
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  4. #14
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    Quote Originally Posted by Cambo_oldjaguar View Post
    Was very nice to meet you mate, and thanks for making the trip over.

    So what do you think of the transmission tune?
    Same Cambo.

    Interesting day for the run






    D4 did it with ease!

    Back to the tune!

    Itís made a fantastic vehicle totally sublime!
    This was the missing link to the work Iíve done.

    No more ďroundabout delaysĒ, shifts are positive and better times to keep engine sweet.
    Kick down response is brilliant.

    Off the line itís nicer, and roll to slow & go is much improved.

    This is how it should have been and more!
    Cheers
    Tombie

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  5. #15
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    Sounds good Tombie.

    Pre-getting a remap, have been establishing some baseline performance data for my D3. Noticed when using sport mode and attempting to launch the vehicle the engine bogs down for the first few seconds (even with a throttle controller). The shift speeds also look to take around 0.3 seconds. On a 0-100kph run, I probably lose about 1 second all up.

    How does the auto remap change this?

    And if you donít want to rev it out, with the auto remap can you still drive it with shift changes around the 2000-2400rpm mark (to keep it around max torque instead of max power) without having to be extra light on the throttle?

    P.S love the photoís.

  6. #16
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    SD6 Tune

    Cambo

    What would a tune on a MY19 SD 6 D5 give you in the way of performance & how would that go with a transmission tune?
    Cheers

    Chuck

    MY 21 76 Series Landcruiser
    MY 03 Discovery 2a
    Ex D1, D2, D3, D4, Prado, D4, D5,
    73 series 3 109 Truck Cab Tray Body, 79 Series,

  7. #17
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    Quote Originally Posted by Tombie View Post
    This is how it should have been and more!
    Cheers mate, I'm glad you like it.

    Quote Originally Posted by chuck View Post
    Cambo

    What would a tune on a MY19 SD 6 D5 give you in the way of performance & how would that go with a transmission tune?
    Well the D5 SD6 is already 225kW/700Nm, which is as far as we want to take the 3.0L in peak numbers.

    There is some improvement to be had in the throttle response, & low-end power delivery, but honestly it's not as amazing a difference like with the earlier cars that were 600Nm or 520Nm factory tune...

    The DPF is also like a cork in the exhaust, which blunts the throttle response (turbo spool), we noticed this with a couple of UK-import D4's that have DPF's, they just aren't as lively as the locally delivered cars without DPF.

    So while we can tune them, it's not going to be an amazing improvement...

    As for the transmission, we aren't read yet to offer tunes in the 2017MY+ 8HP's, they have a totally different TCM in them, and programming via the OBD port is also a different scenario as the 2017MY+ cars are Flexray. The guys are working on it, and we will have a solution, it's just not ready yet...
    Freelander 2 HSE 3.2L - BUILD THREAD
    Jaguar XKR 4.2L S/C - Jaguar XJR 4.2L S/C - MINI Cooper S

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  8. #18
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    Just wanted to update this thread, as I've done some more Land Rovers in the last few weeks.

    2.7 diesel D3 6HP26
    4.4 petrol D3 6HP26
    3.0 diesel D4 6HP28, x3
    3.0 diesel D4 8HP70
    3.6 diesel RRS 6HP26, x2
    3.0 supercharged RRS L494 8HP70
    all of those engine & trans tune

    and one 2.7 D4 6HP26, just the trans tune

    Everyone has been very happy with the improvement to the driving experience.

    And in related news, the gurus in HQ did their first 8HP70 conversion into a 2010 3.0 D4, this was made possible in part by being able to modify some configurations in the 8HP TCM, as well as some tweaks in the 3.0 PCM.

    Done a couple of 2.7 Territory engine tunes too, the next one I get we will be looking into the trans tune, as the latest update to the flashing tool added read/write of the Ford 6R80 TCM.
    Freelander 2 HSE 3.2L - BUILD THREAD
    Jaguar XKR 4.2L S/C - Jaguar XJR 4.2L S/C - MINI Cooper S

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    Upgrades and retrofits for late model Land Rover and Jaguar vehicles. www.oldjaguar.com

  9. #19
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    I'd be very interested in hearing about results you've achieved with the 5.0 V8 and 6hp28. I have a 2011 V8 D4. Thanks

  10. #20
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    Quote Originally Posted by Cannon View Post
    I'd be very interested in hearing about results you've achieved with the 5.0 V8 and 6hp28. I have a 2011 V8 D4. Thanks
    On the engine side there's not huge gains to be had in peak numbers with the 5.0L NA. Stock is 276kW/510Nm, tuned is 292kW/532Nm. The intake on the Land Rovers is a bit more restrictive than on the Jags, that seems to be the limiting factor. The biggest difference is the throttle response & low-end torque, as the stock tune is throttled back down low to make it "docile" to drive.

    The 6HP28 for the 5.0L NA get's tuned in a similar way to what we do on the Jag XK/XF/XJ, so faster/smoother shifts, revised gear selection strategy & torque converter lockup strategy. Again it's about the way it drives (much nicer) not as fast as possible... it's a much nicer thing to drive, more responsive, more lively.
    Freelander 2 HSE 3.2L - BUILD THREAD
    Jaguar XKR 4.2L S/C - Jaguar XJR 4.2L S/C - MINI Cooper S

    Old Jaguar Australia - www.facebook.com/oldjaguarau
    Upgrades and retrofits for late model Land Rover and Jaguar vehicles. www.oldjaguar.com

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