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Big Nuggets Bob

Detector Mods

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Am I reading this right...? $2200 bucks for mods to a 4500?


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  If you are looking at Link Technologies prices on mods remember that is in Australia dollars not US.  The best thing is to send a contact email to Peter Woodland, Woody, to get the cost in US dollars.  

  I have had two detectors modified by him, an SD 2100 and a GP 3500 and I notice definite performance advantages in the quietness of the threshold, emi interference and the ability to find smaller gold.  I had used both of these detectors before having the mods done and am sold on his mods.  

  A friend of mine had his GPX5000 modded by him and he claims almost the same results as the GPZ 7000 on small gold at depth.  You just have to use it and get to know the best setting to be in for a particular ground condition and gold type.  

  Personally I can’t afford a 7000 so the cost to modify my 5000 would be worth it, which I plan on doing.

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3 hours ago, Big Nuggets Bob said:

Anybody had modifications done to GPX 4500 by "Detector Mods"?

reviews appreciated, wondering if it's worth the $2200.00.

I think a forum user that goes by Shep has had his 4500 modified and he seems to love it.

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Hi there Big Nuggets Bob, Yes Detector Mods is in Aussie. Peter Woodland. As WesH has said above. Known usually as "Woody". I followed Woody for some time checking on peoples comments & results. Like has been said above, many have been very positive. I do know that many bag him & his mods all over the forums. He has his haters & disbelievers but the proof is in the eating of the pudding. Very easy to be negative by following the pack but not fair if they haven't tried his mods for themselves. Funny how people form an opinion straight off someone else's say so without first hand experience or doing a bit of their own homework & research. Of course Minelab would be loving the na sayers, disbelievers & the negatives & possibly could have a hand in that. They have their products to protect & of course want to sell as much new product as they can. How dare someone come along & "tinker" with the best, even if an older model & making it better & cheaper than forking out $$$$$ more for the next new model.

  I purchased one of his interference filters for my GP 3000 & it worked a treat. I know that from first hand experience detecting in a high EMI area. Getting gold that otherwise was lost in the "noise" prior to getting the filter. Not just did it calm down the EMI but also solar influence. I ran my 3000 as hot as I could so paid the price with EMI & the like. The filter solved it & lived on my detector from that day on. Getting transferred on to my 4500 when I got it. I had JP (Jonathan Porter) ask me what that black box next to my signal amplifier booster was, after he saw a photo I put up of my setup in general detecting. Nothing more was said after I gave the answer.

Just prior to getting my Zed I purchased another 4500 that had all the "Woody" mods done to it. The price was just too good to say no. The whole detector was less than what you have quoted for just the mods alone, & I am talking NZ$. I was always VERY inquisitive as to his detector mods & the positive comments I had read about them. I didn't pay too much attention to all the negative comments, as to my reasons mentioned above, but kept an open mind. To be honest I have only used it the once :rolleyes: as I then got my Zed & have not put the Zed down. I took the modded 4500 to an absolutely thrashed public recreational fossicking area. An area I had been over numerous times with my 3000 & then the standard 4500. I went to the most thrashed area of bedrock, straight down from the public car park. Turned it on. Set MY settings, auto tuned, ground balanced & was away. I didn't have the interference filter on it & I was using my B&Z booster & twin speaker set up from JP.  It was running so quiet I thought there was something wrong with it. It was very unnerving being SO use to a louder threshold. Checked every thing & all seemed ok. Oh well...what the hell, so I went detecting. BANG....got a signal almost straight away. It lept out. It was a smallish piece of thin gold jammed down in a bedrock crack. Visually I couldn't see it as it was down a bit. Took a bit to recover it but I just could not believe it when I saw it was gold knowing how worked over this area has been. Even having sluice box operators smashing out & opening up the bed rock cracks & crevices to get at any virgin material to put down their boxes. I was sold on the modded 4500. How could I not be. Your choice though, is it worth it for you? Only you can answer that & be satisfied with your choice. If you have a 4500 & it is out of warranty then maybe. Of course if it is still under warranty & you have the mods done Minelab will not recognise the warranty from then on. Which is fair enough & understandable from there point of view. Good luck & let us know what you decide.

I am off for my first detect in over a month. Just been too hot at low to mid 30 degrees celsius temps. Then yesterday morning woke to snow half way down the mountains & a temp high of just 15 for the day. Much more pleasant, so I am out there. 

Best of luck out there

JW :smile:    

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The GPZ & SDC can see types of gold the 4500 & 5000 cannot detect. It would be interesting to know if your modified 4500 can see these types of gold. I read on Woody's site that the mod allows detection of this gold on the 4500/5000 by extending the frequency range.  I have gold pieces that scream on the GPZ & SDC but don't make a peep on my standard unmodified GPX-5000 no matter what timing or coil is used.


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Matt kelava has some videos with his 4500 on youtube under "goldhunter" channel. He had his done by woody. He also uses detech coils and swears by both the mods and coils. 

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