We want a D5 Vario mod top...NOW!! Listen up fokes

I think the need is there beyond just a few..

While I may never understand Koolances continued aluminum construction, obvious their company believes there was a need here.

It's not quite the same need as the DDC with the 3/8" barb issue, but I would think there are still folks that would be willing to spend $30 on a top if it performed better. The D5 pump curve is definately more of a high flow/low pressure design, so if someone could tweak that curve over to better pressure capabilities, I think you'd have something there.

I'm not sure what to think of the DDC failures and if you would have that sort of problem with the D5's but there is performance untapped here. I don't think you would see quite the same problem, it would seem the D5 has a much more substantial motor and reserve capacity than the DDC, but that's just an assumption base on size and the amount of heat coming off the bodys between the two pumps.

Even a simple port mod on the pump was worth a 10% improvement over stock on a real world loop, even though it was all improvement in extending the flow rate side of the curve.

Also, the D5 common to the water cooling segment is the same top and mold that they use with the larger 3/4" barbs, except they simply reduced the outlet size and it left a very inefficent sharp exit loss. That wasn't engineered in, it was just the result of patching the existing mold.

Probably the very simplest improvement would be to offer the Laing D5 with the 3/4" novel threaded pump top and let users select an adapter. That's a stronger curve than the 1/2" hosebarb top that we see in watercooling.

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Originally Posted by Marci

12 people is hardly mass production quantities d00d... you need to be talking hundreds or more to get it down to "reasonable" price whilst keeping it worthwhile for the person doing the making...

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I only posted today mate. Got to give it time. How long did it take for you & Thermochill then eh?

Martin i can not agree anymore with you, perfectly said mate

25+ is enough to get a decent price

+2

2 less for 25. I'm still slowly (ah, income, income) building my monster.

If someone can supply a top that improves the D5's performance with G1/4 (or 3/8, whatever performs better) threads, I'll put that forward in my schedule and get two.

Just don't make it in cast acrylic or aluminium. Use delrin, nickel plated brass, naked brass, SS318 (ouch, my pocket), kylar, camel dung, whatever, but no acrylic no aluminium please.

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Originally Posted by Linus@ncix

I'm amazed anyone wants one. Every single failed DDC I've seen used a custom top. I think I've seen one failed D5 EVER (D5 outsells DDC/DDC+/DDC Ultra or w/e DDC revision by about 5:1 at my shop) IMO we should let the experts at Laing decide what top is best for their pump...

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You obviously haven't come across as many DDC failures as I have (and, even then, I haven't seen that many fail)... the small percentage that fail tend to do so with or without custom tops. If the majority of your customers are purchasing DDC pumps with the intent to use them with custom tops, then the majority of failures that you're going to see will be with modified DDCs (duh). However, working only with that information, the jump to singling out the tops as a cause of failure is not a logical one. In addition, Laing engineers have assured me that the change in volute shape, with the use of custom custom tops, should not have an appreciable/substantial impact on pump life--Laing has tested my top (as I recall, they have 4 or 5 of 'em by now) and I'd assume that they have done the same to similar aftermarket parts. On top of that, Laing has their own 3/8" top inlet and 1/2" top inlet parts for the DDC pumps that very much resemble Lee's old DDC mod.

As far as new impeller housings for the D5 go, the internal geometry of the D5 is a bit more complex than that of the DDC and, aside from doing a little port work and making a small modification that may boost head pressure a bit, I don't really see much in the way easy performance gains (by that, I mean substantial improvement to the curve, not incremental). Meh, I'd have to do some experimenting... but the last thing that I need right now is another project :rolleyes:

Either way, Pete, you've got me thinking... and that's a dangerous thing ;)

Welshtom, to get a "reasonable" price around here (i.e. one that would allow you to sell to other stores and make it somewhat worthwhile for all parties involved) you'd need to be producing parts in batches of at least 200-300+ ... do you have your own equipment?

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Originally Posted by Petra

Welshtom, to get a "reasonable" price around here (i.e. one that would allow you to sell to other stores and make it somewhat worthwhile for all parties involved) you'd need to be producing parts in batches of at least 200-300+ ... do you have your own equipment?

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That may be so, but in the UK the manufacturing business is dead. Companies take any oppurtunity to get their machines working and that means taking on any orders.

i get so many custom parts made now in batches of 10-20 that are cheap as chips just because it fills a few hours of machine downtime.

unfortunatly our weak government regarding imports/exports means China pretty much supply us with 99% of everything. The UK is now a retail/sales industry not the industrial giant of the world unfortunatly :(

25+ tops would get us to the RRP of your DDC tops with a decent margin I would think

thats how i see it anyway...

Thanks Alex,

Perhaps a potential solution is not the top at all, but rather one of a different impeller?

The existing pump curve is just focused on flow too much, perhaps a new impeller would do the trick. I'm just not sure if that's something that could be economically produced...:shrug:

I just seems like it really wasn't Laing's intent for the D5 to be a water cooling pump with the half a dozen different tops they offer for it, it was more of a product that found it's audience even though it wasn't specifically designed for it...

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Originally Posted by welshtom

25+ tops would get us to the RRP of your DDC tops with a decent margin I would think

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Wow... having that kind of flexibility would be really nice :)

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Originally Posted by Petra

Either way, Pete, you've got me thinking... and that's a dangerous thing ;)

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Hehehehe

Tom thats a cool price with me!

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Originally Posted by Petra

As far as new impeller housings for the D5 go, the internal geometry of the D5 is a bit more complex than that of the DDC and, aside from doing a little port work and making a small modification that may boost head pressure a bit, I don't really see much in the way easy performance gains (by that, I mean substantial improvement to the curve, not incremental). Meh, I'd have to do some experimenting... but the last thing that I need right now is another project :rolleyes:

Either way, Pete, you've got me thinking... and that's a dangerous thing ;)

Welshtom, to get a "reasonable" price around here (i.e. one that would allow you to sell to other stores and make it somewhat worthwhile for all parties involved) you'd need to be producing parts in batches of at least 200-300+ ... do you have your own equipment?

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Id love you for life even if it was just a carbon copy of the stock housing. I just wanna put some EK barbs on my D5.


Ported delrin housing please! I dont care about extra ports!

You can put me down for 2.

I also don't care about the extra ports, just the ceter inlet and top outlet, and preferrably the top outlet would be inline to be tangent to the perimeter of the ineterior so it's a good clean exit.

Tapped in either G1/4 or 9/16"-18 would be fine.:up:

What about corrosion?

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Originally Posted by MorGo7h

What about corrosion?

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Hence the reason not to use the k******* top and get one made out of delrin

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Originally Posted by Petra

You obviously haven't come across as many DDC failures as I have (and, even then, I haven't seen that many fail)... the small percentage that fail tend to do so with or without custom tops. If the majority of your customers are purchasing DDC pumps with the intent to use them with custom tops, then the majority of failures that you're going to see will be with modified DDCs (duh). However, working only with that information, the jump to singling out the tops as a cause of failure is not a logical one. In addition, Laing engineers have assured me that the change in volute shape, with the use of custom custom tops, should not have an appreciable/substantial impact on pump life--Laing has tested my top (as I recall, they have 4 or 5 of 'em by now) and I'd assume that they have done the same to similar aftermarket parts. On top of that, Laing has their own 3/8" top inlet and 1/2" top inlet parts for the DDC pumps that very much resemble Lee's old DDC mod.

As far as new impeller housings for the D5 go, the internal geometry of the D5 is a bit more complex than that of the DDC and, aside from doing a little port work and making a small modification that may boost head pressure a bit, I don't really see much in the way easy performance gains (by that, I mean substantial improvement to the curve, not incremental). Meh, I'd have to do some experimenting... but the last thing that I need right now is another project :rolleyes:

Either way, Pete, you've got me thinking... and that's a dangerous thing ;)

Welshtom, to get a "reasonable" price around here (i.e. one that would allow you to sell to other stores and make it somewhat worthwhile for all parties involved) you'd need to be producing parts in batches of at least 200-300+ ... do you have your own equipment?

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I stand corrected. Until I receive information from other people, I can only go with what I've seen (no failures with stock tops). Thanks for clearing that up for me, Alex :)

I'll take 1 !!! :)

Although i don't how well "DEMANDING EVERYTHING" will work out...

We will see....

just port your d5/mcp655 yourself, all you need is a drill and a 7/16" drill bit and you can go to town, then clean up the insides with some 1000 grit sand paper, you can tell a difference in flow and its quick, easy, and very cost efficient :D

+2

I'd be in for 2 if they are going to happen. And just like most everyone else I don't care about extra ports. I just want a nice quiet well perfoming pump for the loops I'll be building soon.

I'd be down for one. I've been pondering moving to 3/8", and this would make my life far easier.

A way for more varied mounting options would be nice too...
-Ghent

I'd be down for 2 as well. I also think making the outlet perfectly inline with the actual flow would enhance performance. Inlet, with the impeller design, would only work (well) with the central position.

If the plastic impeller can be removed from the magnet without much difficulty, then it might be feasible to make a better impeller to fit WC standards.

Okay seams like there are a good feew that want it then. Can them that do put +1 / +2 etc to the number of them that they want. Should help Tom out then.

Edit ya posts to do it, saves spaming the topic

Id take one as well.

Maybe 2 ;).

*cough/dejavu* GTX copper top *cough*

Don't get me wrong, I would love to see this happen, it's only from what I have seen before, just because people say they are going to buy something doesn't mean they will. Having said that I think it's fair to say half the problem with the Copper GTX top is the price, and if Welshtom can get these made a cheaply as he says (I am not suggesting you a liar :up:) they should sell like hot cakes :)

Im not making any promises yet :p

once a design is finalised I will then know a fixed price.

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Originally Posted by .Logic

*cough/dejavu* GTX copper top *cough*

Don't get me wrong, I would love to see this happen, it's only from what I have seen before, just because people say they are going to buy something doesn't mean they will. Having said that I think it's fair to say half the problem with the Copper GTX top is the price, and if Welshtom can get these made a cheaply as he says (I am not suggesting you a liar :up:) they should sell like hot cakes :)

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I think that this is something that would catch on like the DDC tops did. the D5 is recommended almost as much as the DDC is. $20-$30 for a top would be nice, even $40 isnt unreasonable when you consider that to switch to 3/8 tubing D5 owners would have to buy a new pump, use 1/2 inch tubing off the pump (ugly) or fight and pray to get 3/8 over the well over 1/2 barbs the D5 has. DDC + top is around $100?