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Thread: D3/4 Towing tips

  1. #11
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    GAP IID can monitor EGT so you don't need a separate gauge. On my D4 I monitor EGT, coolant temp and transmission temp using the Bluetooth GAP on my iPad or phone.

    On a D3 or D4 the TC is always locked from above about 2500 rpm in 2nd and then at any revs in all gears up to 6th in the six speed and similar in the 8 speed. Also, my D4 and my RRV all use 6th (or 8th in the RRV) when in sport mode without any issues. The 8 speed will often drop to 6th up hills when towing though.

    I use sports mode, mainly because it slightly increases the change point revs and it down shifts aggressively under brakes to maximise engine braking when you need it.
    Bob

    2010 D4 3.0TDV6 SE, ediff, LLAMS, 5 x GOE wheels, LT285/60R18 BFG K02's, GOE Compressor Guard, LR Tank, Mitch Hitch, ECB Bull Bar, Kaymar Rear Bar, Traxide, Safari Snorkel.
    2019 Discovery 5 SD6 SE, 20 inch wheels, 275/55R20 Nitto Grappler G2 tyres

  2. #12
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    Quote Originally Posted by BobD View Post
    GAP IID can monitor EGT so you don't need a separate gauge. On my D4 I monitor EGT, coolant temp and transmission temp using the Bluetooth GAP on my iPad or phone.

    On a D3 or D4 the TC is always locked from above about 2500 rpm in 2nd and then at any revs in all gears up to 6th in the six speed and similar in the 8 speed. Also, my D4 and my RRV all use 6th (or 8th in the RRV) when in sport mode without any issues. The 8 speed will often drop to 6th up hills when towing though.

    I use sports mode, mainly because it slightly increases the change point revs and it down shifts aggressively under brakes to maximise engine braking when you need it.
    Bob, the Gap tool can read EGTs in 3.0s which have the probe factory.

    The 2.7 doesn’t have an EGT probe so nothing for the Gap tool to interface with.

  3. #13
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    Thanks Tombie. Good to see you back on the forum.
    Bob

    2010 D4 3.0TDV6 SE, ediff, LLAMS, 5 x GOE wheels, LT285/60R18 BFG K02's, GOE Compressor Guard, LR Tank, Mitch Hitch, ECB Bull Bar, Kaymar Rear Bar, Traxide, Safari Snorkel.
    2019 Discovery 5 SD6 SE, 20 inch wheels, 275/55R20 Nitto Grappler G2 tyres

  4. #14
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    Will my nanocom read a D4?
    "Land Rover - making mechanics out of everyday motorists for nearly 70 years"

  5. #15
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    Quote Originally Posted by BobD View Post
    GAP IID can monitor EGT so you don't need a separate gauge. On my D4 I monitor EGT, coolant temp and transmission temp using the Bluetooth GAP on my iPad or phone.
    My 2.7 does not have an EGT sensor, so I've been told several times, although I've just seen but not got further noting some kind of EGT for each bank in the Gap Tool menu, so maybe it was all a furphy and there are sensors (or not). Too late now anyway - EGT gauge was fitted today. Only managed to get it up to about 500 pulling the brick up hill at city speeds. The towing trip to Kalbarri in 10 days will tell the story.
    D4 MY16 TDV6 - Cambo towing magic, Traxide Batteries, X Lifter, GAP ID Tool, Snorkel, Mitch Hitch, Clearview Mirrors, F&R Dashcams, CB
    RRC MY95 LSE Vogue Softdash "Bessie" with MY99 TD5 and 4HP24 transplants
    SADLY SOLD MY04 D2a TD5 auto and MY10 D4 2.7 both with lots of goodies

  6. #16
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    Quote Originally Posted by John_D2 View Post
    Will my nanocom read a D4?
    From Colin - technically yes if you buy the appropriate licence.

    But for the price just about get a new RovaCom IQ BT with significantly enhanced features including a better screen assuming of course you are Android - might be just about time for a BBS group buy anyway? If I recall, no Apple version for the time being?
    D4 MY16 TDV6 - Cambo towing magic, Traxide Batteries, X Lifter, GAP ID Tool, Snorkel, Mitch Hitch, Clearview Mirrors, F&R Dashcams, CB
    RRC MY95 LSE Vogue Softdash "Bessie" with MY99 TD5 and 4HP24 transplants
    SADLY SOLD MY04 D2a TD5 auto and MY10 D4 2.7 both with lots of goodies

  7. #17
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    Quote Originally Posted by BobD View Post
    GAP IID can monitor EGT so you don't need a separate gauge.

    On a D3 or D4 the TC is always locked from above about 2500 rpm in 2nd and then at any revs in all gears up to 6th in the six speed and similar in the 8 speed.
    As Tombie noted , 2.7's don't have a probe , and a separate gauge is required to read true ( pre turbo ) temps , the probes ( sensors ) on the 3.0 litre will read reference egt ( post turbo ) a good practice would be for someone to fit a pre turbo probe on the 3 .0 , then give differential readings on them , especially pre and post remap if going that route.
    TC locking depends on load, throttle position, speed and a few other pre set parameters

    Quote Originally Posted by Tombie View Post
    Bob, the Gap tool can read EGTs in 3.0s which have the probe factory.

    The 2.7 doesn’t have an EGT probe so nothing for the Gap tool to interface with.
    Welcome back Mike

    Quote Originally Posted by gavinwibrow View Post
    My 2.7 does not have an EGT sensor, so I've been told several times, although I've just seen but not got further noting some kind of EGT for each bank in the Gap Tool menu, so maybe it was all a furphy and there are sensors (or not). Too late now anyway - EGT gauge was fitted today. Only managed to get it up to about 500 pulling the brick up hill at city speeds. The towing trip to Kalbarri in 10 days will tell the story.
    Enjoy Kalbarri Gavin, could do with some better temps myself ,max 11 here today, felt colder in the workshop ( bloody dog hogging the piddly gas fire ) let us know what max egt's are with your remapped Disco

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