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Thread: Jaguar F-type 2015-2019 V8 Tuning

  1. #1
    Potential Tuner
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    Jaguar F-type 2015-2019 V8 Tuning

    Ok?I thought Ill reach out and see what?s achievable using HP tuners when it comes to tuning these cars with upgraded pulleys etc.

    I have been told by a reputable tuner, HP only has predefined maps and it determines what portion of the Hex you can edit only. So its only possible to do a basic tune, adjusting some timing & fuelling & so on, and I will be unable to tune the vehicle to run upgraded pulleys.

    Been tuning for over ten years mainly GM and Ford, and when looking at the HP data available I find this hard to believe as it allows allot of editing e.g., SC by pass valve and so much more.

    Has anyone manged to tune these cars successfully with HP ??? and if so some guidance would be appreciated.

    I love HP and would rather use it, as it give me total control. However i don't want to be wasting my time either if not possible.

    Thanks

  2. #2
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    Well, given I haven’t had any replies whether or not HP tuners has the full ability to tune these engines, I’ll make a start next week by changing a few torque limits tables, fuel and spark multiplies regarding the catalytic converters, and supercharger tables. Initially I want to have full control over the boost before introducing timing and adjusting the final lambda.

    I’ll keep you all posted regarding the results before and after, and share the dyno figures prior to installing the new pulleys etc

  3. #3
    Tuner
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    Let's us know how it comes along.

    I have a 2014 V8. HP Tuners will make some additions based on your ECM or TCM version but it takes some time.

    But there seems to be a lot missing based on the data I have available for my 2015 C7.

  4. #4
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    Will do and thanks for the reply, great to see someone else interested in tuning these f-types.
    Not every one’s cup of tea LOL
    Looking at the parameters available, I can’t see why once I get my head around the torque modelling, I couldn’t tune the car to its full potential. So far, I am seeing with std pulleys 11 psi, supporting 23 degrees of timing with a lambda of 0.75, so on the rich side.
    I’ll keep posted once I get a chance to put it on the rollers under more load.

  5. #5
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    Comparing to an .ols there are some limiters missing in a hptuners. And some of these are wrong described, same for a trans.
    That's why i gave up on this and using a winols and a flasher.

  6. #6
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    I finally got a chance to spend some valuable time on the dyno the other day, and apply what i know about tuning.
    Please take into consideration these figures are just a guide as all dyno's vary. Two initial runs with factory tune showed 475HP at the wheels. I made a few simple changes, one being the fuel as they do command a rich mixture at WOT. A lamda of 0.800 (11.8AFR) seems to always show the best HP and torque IMO. Timing was slightly increased, only a few degrees which really helps all forced inductions cars. My final timing being 27.5, using a premium unleaded. I increased the torque limits, driver demand, increased boost limits MAP and supercharger max boost to 100%.

    At this stage i really cant say if i had total control over the boost and especially the bypass valve, however during the run the valve wasn't active until 6000RPM, my boost at max rpm of 6500 was 10.3 PSI. Which in fact was the same boost i saw from the factory run.

    Overall i manged to pick up another 38HP (513HP) at the wheels, but the best was the increase in torque, which at the end of the day torque is what spins wheels. The initial crank torque was 623 at 6400RPM and current torque is 711NM at 6400 RPM.

    I also increased the torque values in the trans, as these seem to limit what can be put through the transmission.

    The car is totally different, its a weapon in comparison with just a few minor changes.

    Next is top and bottom pulley changes, high flow cats 200 cells and back on the dyno.

    My biggest issues ahead is, am i going to optimize all the potential from the pulley upgrades using HP tuners. My final goal is to achieve 570 HP at the wheels.

    What i can also say, HP tuners has done a fantastic job, regarding the ability to optimize the tuning of the ZF8HP, i can say it may be one of the best software available for these gearboxes, however re the engine time will tell.

  7. #7
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    That's great results! Thanks for sharing.

  8. #8
    Tuner in Training
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    Hello

    i had your problems two years ago, if you read my post in the same forum (tuning F-type 3 liter v6) i got rise the boost (it is not only By pass valve demand) putting the lower pulley.

    I still keep my upper pulley. the main table is the torque demand, but gets problem with gearbox if you rise too much a low rpm range as gearbox try to change gear because you rise the torque, so you need rise the torque values in the gear box to limit slip in the gear box

    let me know if it is useful for you