2 year solo 4x4 africa exploration - Page 9





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  1. #161
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    Default Re: 2 year solo 4x4 africa exploration

    Quote Originally Posted by smcs View Post
    Like your suggestion. Unfortunately, more weight on top - but everything is a compromise!
    See earlier response. 1.5 kg is not a major issue over the cab. You have a front sway bar for stability up front. If you must and remain concerned about cornering stability, fit a rear (upgraded) sway bar to the rear axle. There are factory mounts for one.

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  3. #162
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    Default Re: 2 year solo 4x4 africa exploration

    I'm thinking of leaving everything as it is and mounting the Hi-Lift Jack to the front of the roof carrier. Maybe also, spade on the side of the roof carrier. Your thoughts, please.

  4. #163
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    Default Re: 2 year solo 4x4 africa exploration

    Quote Originally Posted by smcs View Post
    I'm thinking of leaving everything as it is and mounting the Hi-Lift Jack to the front of the roof carrier. Maybe also, spade on the side of the roof carrier. Your thoughts, please.
    We have a 79 d/c. Our spade is mounted on the side of the roof rack w/ the Front Runner spade mounting bracket. Negatives, no locking mechanism, positives, easy access and when it gets dirty it's out of the car.

    We keep our hi-lift mounting jack behind the rear seats in a canvas bag (it came with one). This doesn't rattle and keeps the weight low down and centered vs. high on a rack or to far back on the tyre carrier. I've also seen mounted to the bull bar, which appeals to me to keep some weight forward, though not good in an accident! Behind the seats may already be utilized for something else for you, but for us it works great. Negatives, not easy access, but we solve this by not getting stuck (ha! Famous last words...). We just used the bottle jack to change a tyre for punctures.

  5. #164
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    Default Re: 2 year solo 4x4 africa exploration

    Quote Originally Posted by smcs View Post
    I'm thinking of leaving everything as it is and mounting the Hi-Lift Jack to the front of the roof carrier. Maybe also, spade on the side of the roof carrier. Your thoughts, please.
    The front and rear sections of the rack are unsupported and the mount will crack on the first bad road. The front and rear slats of the racks are light duty. See the Front Runner website in this regard.

    With "luck" the jack will hit the windscreen when you remove it in a stress situation.

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  7. #165
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    Default Re: 2 year solo 4x4 africa exploration

    Quote Originally Posted by CalDriver View Post
    We have a 79 d/c. Our spade is mounted on the side of the roof rack w/ the Front Runner spade mounting bracket. Negatives, no locking mechanism, positives, easy access and when it gets dirty it's out of the car.

    We keep our hi-lift mounting jack behind the rear seats in a canvas bag (it came with one). This doesn't rattle and keeps the weight low down and centered vs. high on a rack or to far back on the tyre carrier. I've also seen mounted to the bull bar, which appeals to me to keep some weight forward, though not good in an accident! Behind the seats may already be utilized for something else for you, but for us it works great. Negatives, not easy access, but we solve this by not getting stuck (ha! Famous last words...). We just used the bottle jack to change a tyre for punctures.
    I trust the high lift jack will be properly secured as it can become a dangerous missile in an accident.

  8. #166
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    Default Re: 2 year solo 4x4 africa exploration

    Open circuit test of my 325W Canadian Solar panel (mounted flat on top of RTT). I am not entirely sure what this is telling me. Any comments?
    Attached Images Attached Images  

  9. #167
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    Default Re: 2 year solo 4x4 africa exploration

    Quote Originally Posted by smcs View Post
    Open circuit test of my 325W Canadian Solar panel (mounted flat on top of RTT). I am not entirely sure what this is telling me. Any comments?
    Interesting data. Firstly, sun tracking seems to be recorded assuming the panel isnt being moved hence the low values early morning and towards the evening.

    The efficiency values are also interesting. The max value is in the upper 80s. Is the panel still mounted flat when this was recorded and is the vehicle sitting near any sun blocking structures?

    If there is no obstruction and the panel is clean and functioning properly and was moved and angled to track the sun, then there could be an issue with the panel although (not knowledgeable in this field) it is possible that achieving 100% is not to be expected?
    There is no such thing as inclement weather, only poor selection of clothing.... or Vehicle

    2010 Hummer H3 5.3lt V8, 300 HP, FDL, RDL, CDL, TC and 4:1 Low Range

    Discovery and Range Rovers: SOLD: enough is enough

  10. #168
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    Default Re: 2 year solo 4x4 africa exploration

    Quote Originally Posted by Estee View Post
    Interesting data. Firstly, sun tracking seems to be recorded assuming the panel isnt being moved hence the low values early morning and towards the evening.

    The efficiency values are also interesting. The max value is in the upper 80s. Is the panel still mounted flat when this was recorded and is the vehicle sitting near any sun blocking structures?

    If there is no obstruction and the panel is clean and functioning properly and was moved and angled to track the sun, then there could be an issue with the panel although (not knowledgeable in this field) it is possible that achieving 100% is not to be expected?
    No obstacles, no sun tracking, panel lying flat same position all day.

    100% efficiency would "probably" only be possible in ideal lab situations.

  11. #169
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    Default Re: 2 year solo 4x4 africa exploration

    Quote Originally Posted by smcs View Post
    Open circuit test of my 325W Canadian Solar panel (mounted flat on top of RTT). I am not entirely sure what this is telling me. Any comments?
    Very very roughly.
    It looks pretty good.
    Total Watt / 12 V =149 Ah
    One freezer running flat out during this period could use 7.4 A x 10 hours = 74 Ah.
    That leaves 149 - 74 = 75 Ah for battery charging.
    Say carging efficiency is 80%
    That gives your batteries a gain of 60Ah
    If you are in severe circumstances the freezer can run at average 5 A overnight for 14 hours = 70 Ah
    You are then still losing 10 Ah per day

    If you drive during the day for 2 hours the freezer runs off the alternator for 2 hours and the alternator charges the battery for 2 hours
    You will easily make up the deficit.
    If the circumstances are not as severe you should not run into a defecit.

    Note the required battery capacity in the severe conditions.

    If you use a lead acid 100Ah you can run it down to 50% and can charge it only to about 90% in the time given with an unlimited supply.
    The max useable Ah will be 40Ah
    The 60Ah required tells you to install 2 batteries.

    As jou can see it is pretty simplified calculating, but it must be practical and always plan on the worst circumstances.

    Hope that helps ?

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  13. #170
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    Default Re: 2 year solo 4x4 africa exploration

    Quote Originally Posted by Pieter de Waal View Post
    Very very roughly.
    It looks pretty good.
    Total Watt / 12 V =149 Ah
    One freezer running flat out during this period could use 7.4 A x 10 hours = 74 Ah.
    That leaves 149 - 74 = 75 Ah for battery charging.
    Say carging efficiency is 80%
    That gives your batteries a gain of 60Ah
    If you are in severe circumstances the freezer can run at average 5 A overnight for 14 hours = 70 Ah
    You are then still losing 10 Ah per day

    If you drive during the day for 2 hours the freezer runs off the alternator for 2 hours and the alternator charges the battery for 2 hours
    You will easily make up the deficit.
    If the circumstances are not as severe you should not run into a defecit.

    Note the required battery capacity in the severe conditions.

    If you use a lead acid 100Ah you can run it down to 50% and can charge it only to about 90% in the time given with an unlimited supply.
    The max useable Ah will be 40Ah
    The 60Ah required tells you to install 2 batteries.

    As jou can see it is pretty simplified calculating, but it must be practical and always plan on the worst circumstances.

    Hope that helps ?

    Thanks for your very helpful (and practical) explanation, Pieter. Accepted that there are many variables and that this is a rough estimate.

    - Batteries: 2 x Blue Nova 108Ah LiFePo.
    - DC/DC Charger: Redarc BC/DC (50A).
    - AC/DC Charger: Victron Blue Smart (Bluetooth) 30A
    - Solar Controller: Victron Smart Solar MPPT 100/20
    - Battery Monitor: Victron BMV-712 Smart
    - Inverter: Victron Phoenix VE Direct 12/1200 with remote

    Click image for larger version. 

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  14. #171
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    Default Re: 2 year solo 4x4 africa exploration

    Does it take 2 years to prepare a vehicle for a 2 year overland trip of Africa? Possibly it does.

    It has taken me 5 months so far - and I am almost done with the major vehicle preparation. There will of course always be small niggles that have to be sorted out later.

    Overall, I am very happy with the progress made.

    I am generally very happy with the suppliers and fitters used. To a large degree this is thanks to previous experience and a great deal of research.

    Here is the vehicle ready to be packed.

    Once again, my thanks to all those on the forum who have provided input and advice.

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  16. #172
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    Default Re: 2 year solo 4x4 africa exploration

    Super cool. Well done !
    DGO Fiddler

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  18. #173
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    Default Re: 2 year solo 4x4 africa exploration

    Mooi en goeie keuse 4x4 vir jou toer

  19. #174
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    Default Re: 2 year solo 4x4 africa exploration

    Vehicle mods completed and short test trip to KNP. Very happy - other than with my packing! Some changes to be made.
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  21. #175
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    Default Re: 2 year solo 4x4 africa exploration

    Electrical power panel.


    • 2 x LiFePo 108Ah batteries


    • RedArc DC to DC charger (50A output via alternator) The LiFePo’s suck up all they can get and are fully charged within an hour of driving. Had to import this little monster from Oz. We have nothing in SA that can deliver the 50A I need for the LiFePo’s.


    • Canadian Solar 325W solar panel on top of the RTT. (I am very impressed with this panel - charges exceptionally well lying flat - even in the shade).


    • Victron smart solar regulator (bluetooth).


    • Victron AC to DC charger for when 220V AC shore power is available.


    • Victron 1200W pure sine wave inverter.


    • Victron smart monitor (bluetooth).


    • Victron app for iPhone to monitor the whole range of power usage.



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    Last edited by smcs; 2019/09/26 at 06:50 PM. Reason: Added info

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  23. #176
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    Default Re: 2 year solo 4x4 africa exploration

    Coming along very very nicely mate. Well done so far.

    Just quickly though, i would NOT store my knives like that. They WILL rattle off, and when you pull up under a thorn tree 225km from the nearest village for a cuppa tea, open the side, and that knife WILL bury itself in your foot.

    Solo travel = dont take medical risks.

  24. #177
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    Default Re: 2 year solo 4x4 africa exploration

    Quote Originally Posted by grips View Post
    Have designed my own pressurising system no dust.
    .
    How does that look please

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