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Thread: Aluminium high capacity radiator

  1. #21
    Join Date
    Apr 2017
    Location
    New Zealand
    Posts
    14
    Quote Originally Posted by finallyrangie View Post
    Hello people,

    I recently started looking around for a full aluminium radiator, as anyone else who has looked will know, there's not a great deal of choice.

    Local radiator fabricator quoted $1460, bit rich for my blood, and the desert coolers have a great reputation for quality but with postage I was still quoted between $900 and $1000, which still seems a lot for a car that originally cost $3000.

    I kept looking and found an option from a company called Direnza, online reviews were mixed in the extreme, everything from "everything they make is rubbish " to "excellent product " so in the end I got in touch with them, in the UK, including postage, $427 to my door, so I decided to take a punt.

    Arrived on the day they said it would, postage had dented a couple of brackets (bit of negotiation got a $45 refund for the trouble and they did offer to have it collected and replaced at their cost ).I've been a metalworker for over 30 years so I gave it the once over when I unpacked. The welding wasn't the best I've ever seen, but it was far from being bad either, perfectly acceptable, it's a full aluminium fabrication with a twin core that is 55mm thick as opposed to the standard 42, there should be a picture of the two together for comparison.

    Fitting was easy, the side brackets are a bit random so I just bent them open a bit with a screw driver and pushed them back around the fixing points once it was in. Only one of the lower fixing points lined up with the hole, and they were tapped out to m6 rather than the standard m8, but otherwise a straight swap.

    Since it's been fitted we've had nothing but rain so I have no idea if it has reduced the operating temperature, but I will keep you posted.

    Anyone looking for a budget aluminium radiator for the P38 should give these a look if my experience is typical.

    Attachment 131201Attachment 131202Attachment 131203Attachment 131204

    Is this radiator performing as well as you hoped?

  2. #22
    Join Date
    Jan 2011
    Location
    Burpengary, QLD
    Posts
    524
    I am very pleased to report that even with the temperatures we've been experiencing in south east Queensland this last week, there has been no issues at all with the cooling system, after a day sitting in the sun outside work the rangie is routinely over 45 degrees and the drive home sees the temp gauge sitting on the bottom of the normal range, I tried it once with the aircon switched off and it barely got to normal operating temperature, so I am very happy with the results so far, a cheap punt that worked out well. Whilst I'm sure the ozzie coolers are more efficient, and no question better quality, for the price I think this is a good option if you are not planning a crossing of the Simpson as part of your summer holidays, not saying the cheap option wouldn't cope fine, but peace of mind, you get what you pay for and the desert cooler is regarded by many as the best.

    I'm very happy with mine, but I'm not planning a trip around Oz, take from that what you will
    P38 Range Rover , the best car in the world, when it's working

  3. #23
    Join Date
    Dec 2013
    Location
    Hong Kong
    Posts
    6
    Greetings from sunny Hong Kong. I have issues when I'm stuck in traffic for long periods (quite normal here) on tick-over with the A/C running. Yesterday I was stuck for over 30 mins and the temp started to go over mid-way on the gauge, and it was not much over 26 deg C outside. I get twitchy about it as I had to replace the engine due to cracked a cylinder some years ago. I re-chipped the ECU at the same time. I've read the thread and have a couple of questions: (1) Does the Aussie Dessert Cooler have a part number? (2) What type of coolant do you find works the most efficiently?

  4. #24
    TheTree is offline ChatterBox Silver Subscriber
    Join Date
    Feb 2013
    Location
    Gosford, NSW, Australia
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    Quote Originally Posted by paclx View Post
    Greetings from sunny Hong Kong. I have issues when I'm stuck in traffic for long periods (quite normal here) on tick-over with the A/C running. Yesterday I was stuck for over 30 mins and the temp started to go over mid-way on the gauge, and it was not much over 26 deg C outside. I get twitchy about it as I had to replace the engine due to cracked a cylinder some years ago. I re-chipped the ECU at the same time. I've read the thread and have a couple of questions: (1) Does the Aussie Dessert Cooler have a part number? (2) What type of coolant do you find works the most efficiently?
    Hi Mate

    The Aussie Dessert Cooler does not have a part number but you need to specify GEMS or Bosch.

    I my GEMS i use the green coolant

    Regards
    Steve
    MY96 4.6 HSE P38. Niagara Grey; "The Phoenix"
    MY99 4.6 HSE P38. LPG, Blenheim Sliver; "Voldemort" burnt to a cinder
    MY79 RR Classic, Gone, MY57 Series 1 SWB, Long gone
    P38 write ups and info on my website http://p38.hts.com.au/

  5. #25
    Join Date
    Dec 2013
    Location
    Hong Kong
    Posts
    6
    Quote Originally Posted by TheTree View Post
    Hi Mate

    The Aussie Dessert Cooler does not have a part number but you need to specify GEMS or Bosch.

    I my GEMS i use the green coolant

    Regards
    Steve

    Thanks Steve. Mine is also GEMS. The cooling system has been a pain recently, just replaced the header tank AGAIN. I always use 'Genuine' but they keep cracking and springing leaks. Noticed the new one has signs of seepage around the cap, but I assume this was from when it recently went over the centre position of the temp gauge. Never ending, but I wouldn't part with her for anything.

    Regards
    Hugh

  6. #26
    Join Date
    Apr 2010
    Location
    sydney
    Posts
    7

    info around aluminium radiators

    The same complaints about poor( but not unsolvable) fit problems with Chinese Direnza radiators have appeared in the UK F/b forums. My main contribution here is to refer you all to' G and M Radiator' US site re tracing and countering stray-current electrolysis of replacement radiators and from currents travelling from the rubber-isolated rear axle up the tailshaft.
    'Ron Davis Racing Products' also gives out a lot of tech info on intake and shroud design, fan wiring, and mounting precautions for aftermarket radiators.

  7. #27
    Join Date
    May 2003
    Location
    Sunny Coast QLD
    Posts
    26,953
    Quote Originally Posted by paclx View Post
    Thanks Steve. Mine is also GEMS. The cooling system has been a pain recently, just replaced the header tank AGAIN. I always use 'Genuine' but they keep cracking and springing leaks. Noticed the new one has signs of seepage around the cap, but I assume this was from when it recently went over the centre position of the temp gauge. Never ending, but I wouldn't part with her for anything.

    Regards
    Hugh
    A few D2 Thor owners have replaced thermostats, 96 to 82deg, which made a big difference in running temps, and anxiety levels!
    "How long since you've visited The Good Oil?"

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  8. #28
    Join Date
    Jul 2011
    Location
    burpengary
    Posts
    110
    This radiator is now for sale again, I purchased it for my Thor p38 not realizing there was a difference..doh. Anyway if interested make an offer.
    Quote Originally Posted by Bravado440 View Post
    Is this radiator performing as well as you hoped?
    74 rangie 350 chev th700 (gone)
    92 disco (gone)
    96 p38 (gone)
    01 p38 current project
    74 jag 5.4 ford v8 Barra 3v, 5spd (on the shelf project)
    63 wife , they don't make em like they used to.

  9. #29
    Join Date
    Apr 2017
    Location
    New Zealand
    Posts
    14
    Wow, what great timing. My replacement radiator dropped its guts on Sunday (about 300km's from home), could be interested if you'd send it to NZ.

    Cheers
    T

  10. #30
    Join Date
    Apr 2016
    Location
    Melbourne
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    1,852
    Quote Originally Posted by finallyrangie View Post
    ......

    Anyone looking for a budget aluminium radiator for the P38 should give these a look if my experience is typical.....
    Engine under the bonnet (in the first pic) looks a lot like a 300 Tdi, and the intercooler looks remarkably similar to a Td5 intercooler.
    Cheers,
    Arthur.

    '99 D1 300 Tdi Auto

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