MCR-QP Stackable Radiator Series Released

[HESmelaugh]

Utnorris: I bet stacking any more than two would'nt bring any advantage (unless we're talking about using 5000rpm fans or something like that).

[Vapor]

Yeah, air saturation levels on a single MCR are already in the 50-70% range for the fans we use (slow to ~3000RPM). Stacking two will theoretically get air saturation levels of 75-91% based on those numbers, which is pretty significant considering how little of a downside there is (no added noise like a higher speed fan, no huge space requirements like adding another rad in parallel, etc). What it ends up being....eh, we'll see

In theory, going to three won't be hugely significant, 87-97% (and again, probably less in practice) air saturation levels. Going to 4-5 will be even worse in terms of gains just because there's less to be had below the 100% ceiling.

And considering higher RPM fans (that would benefit from the more radiators), already are associated with low water to air deltas, the benefit from going from 75% to 87% will be pretty low, unless there's a massive heatload.

I wouldn't worry too much about suffocating fans with 2 or even 3 MCR series. I have an MCR320/MCR220 stack right now and the difference between the open fan and the two buried fans doesn't seem too bad, even at low RPM

[Froggy]

Vote against. I like the idea, but if I'm going to the trouble of stacking two rads, a 38mm fans are going in-between, that setup doesn't look like it would be friendly to the larger spacing. But I realize there are a few logistical issues to having separate SKU's.

Using a 38mm fan will simply require a slightly longer piece of tubing in between the stubby barbs.

[Jimmer411]

Nice gabe! Ive been holding out on buying a 2nd MCR320 because of the thread where these rads were originally brought up. Good to see manufacturers taking input from the little guys


This will make things much easier and less complicated for my loop. My ufo is gonna love this

[NaeKuh]

You Guys VOTE NO FITTINGS PLEASE!!

WHY? Because WE CAN USE BITSPOWER DPLUGS INSTEAD!!!!

SO VOTE NO!

Otherwise YOUR GONNA GO THOUGH HELL GETTING THAT MIDDLE FAN INSTALLED :X
Yates NO LONGER come in open corners because those had the 80mm fan motors.

THE DPLUG SOLUTION IS SO MUCH BETTER!!!!

[biggles1]

Exactly my thought... Vote NO! Nosayers have more fun!

[adpr_02]

Would be nice to see what sort of improvements we're looking at. I would assume that two rads in series would be better than two in parallel.

Still, I think I'm going to get a 220 stack for my MCR320 anyway.

[MrToad]

Can you guys pls explain why you don't want our fittings? you don't like them?

Your fittings are fine. Thing is, I use push-in, so I have no use for them... I don't know the rest of you, but I have a box full of unused fittings...

However, I do have a use for your stackable rad

[Tom128]

Im assuming Im out of luck wanting to stack one of these with my old MCR320 that uses NPT fittings and not the new standardized G1/4"

[modzona]

What have you done to the side of that radiator? *crying*
Please do not go feser on us.

[Eddie3dfx]

Im assuming Im out of luck wanting to stack one of these with my old MCR320 that uses NPT fittings and not the new standardized G1/4"

Yeah same here.. but I'm thinking of jamming in a G3/8 to 1/4" adaptor and hope for the best

[Eddie3dfx]

Just so people know, this is good even as a single radiator.
The reverse threaded holes can also be used as fillports when placed on the top.
Probably the best reservoir you can buy.

[gabe]

To All:

The schematic below will put the debate to a rest.

To anyone in the "No" crowd, I am asking to please measure your SLI fittings (or whatever 1/4" BSPP fitting you plan on using), from base of the flange, to tip of the fitting, and report here.. if it exceeds 8.3mm (0.32"), it won't work, at least with a 25mm fan.

If using a 38mm, then MAX fitting length from flange base to fitting tip should not exceed 14.8mm (0.58")

[gabe]

Im assuming Im out of luck wanting to stack one of these with my old MCR320 that uses NPT fittings and not the new standardized G1/4"

youre' right, sorry, it's the cost to pay for standardizing to the most popular format :-(

[gabe]

This is why I would not want your fittings, I would rather have the option of using 38mm fans. I may be misunderstanding what you stated, but based on that alone I would not want fittings included. Also, as stated before, most of us have extra fittings so why pay for them if you are not going to use, especially if it reduces cost by $10.

check out http://www.xtremesystems.org/forums/...8&postcount=63

[gabe]

gabe, i am sorry but i would like to bring the sli fittings in again.
i just check and from the specs 25mm is the shortest distance.
is there anyway you could confirm that or otherwise.
to me, this would be a great solution for a short distance fitting solution.
or maybe it fit with 38mm fans.
if i understand correctly the rads have G1/4 fittings on both sides

check out http://www.xtremesystems.org/forums/...8&postcount=63

[SNiiPE_DoGG]

great stuff gabe, I'm gonna be shooting you an email in the near future

[Eddie3dfx]

D-Plug-mini is 15mm and expands to fit perfectly.. No tubing, no clamps!

[NaeKuh]

To All:

The schematic below will put the debate to a rest.

To anyone in the "No" crowd, I am asking to please measure your SLI fittings (or whatever 1/4" BSPP fitting you plan on using), from base of the flange, to tip of the fitting, and report here.. if it exceeds 8.3mm (0.32"), it won't work, at least with a 25mm fan.

Bitspower Premium Mini Black Sparkle D-Plug Set



this is why bitspower is the the KING when it comes to fittings. :T

And if thats too short, theres always the original Dplug.

The DPlug is ultimately the best choice for this setup.

D-Plug-mini is 15mm and expands to fit perfectly.. No tubing, no clamps!

exactly how i was thinking.

[ownage]

Good idea. Now we only need some carbon side panels as an additional option.

[gabe]

D-Plug-mini is 15mm and expands to fit perfectly.. No tubing, no clamps!

Sorry but this 15mm dimension seems wrong.

Per information here: http://www.sidewindercomputers.com/bishg14sidse.html "The length from end of thread to end of thread is 30 millimeters. " BP threads are typically 5mm. So it means that flange to flange, you'd have 20mm (30 - 2x5).. and this is too long by 1.4mm for use with 25mm fans.

Now by the look of the dual o-ring design, I roughly estimate that these can extend about 5mm , and this is too short for a 38mm fan.

BUT I also have more concerns:

1/ These appear much more restrictive than our 1/2" barbs which may affect radiator performance.

2/ More importantly, our welded threaded nuts are not always perfectly perpendicular to the plenum face. Using these fittings, we would have a solid connection between the radiators and if there was the slightest misalignment, it could prevent installation of the fans.. and this is the reason why we chose a "soft" alignment (using tubing), to compensate for this potential problem.

3/ A final concern is the fact that our radiators feature an o-ring groove, and these fittings are designed for a flat face since they have a captured o-ring. If the OD of the fitting body is larger than 17.8mm (the OD of our o-ring groove), then the fitting might not be able to seal.

Based on all of the above and looking at the Poll showing a majority of yesses, it looks like we'll have to include our fittings.

[Meatpuppet]

Howdy,
First off I can say that the standard BP D-plug is indeed 30mm (20mm + 5mm threads x2). I don't have a mini with me, but I assume that it is smaller than the standard, and consequently I would assume the 15mm number thrown about is correct. As for your other comments.

1. Somebody just provide the ID of the mini and we can see.

2. This could be a concern, but only the producer truly knows how large of an issue this is.

3. I know that folks use a 2nd o-ring with BP fittings on a GTZ so I would expect something similar here.

All things considered, what kind of cost difference would we be talking about between the radiator ala carte and the rad with 4 fittings? Also about what would the 4 fittings cost by themselves? If the difference in price between ordering the fittings seperately vs the built in cost of having them included is fairly small then there is really no reason to include them since roughly half of us wouldn't be wanting to use them. If the cost difference is substantial (returns to scale and whatnot) then they should be included. Just my opinion. Hasta.

[gabe]

Howdy,
First off I can say that the standard BP D-plug is indeed 30mm (20mm + 5mm threads x2). I don't have a mini with me, but I assume that it is smaller than the standard, and consequently I would assume the 15mm number thrown about is correct. As for your other comments.

1. Somebody just provide the ID of the mini and we can see.

2. This could be a concern, but only the producer truly knows how large of an issue this is.

3. I know that folks use a 2nd o-ring with BP fittings on a GTZ so I would expect something similar here.

All things considered, what kind of cost difference would we be talking about between the radiator ala carte and the rad with 4 fittings? Also about what would the 4 fittings cost by themselves? If the difference in price between ordering the fittings seperately vs the built in cost of having them included is fairly small then there is really no reason to include them since roughly half of us wouldn't be wanting to use them. If the cost difference is substantial (returns to scale and whatnot) then they should be included. Just my opinion. Hasta.

I stand corrected. the item I saw at Sidewinder isn't the mini but the regular.

So the mini might indeed work, but I still have that alignment concern. how much of a problem is it? ppl haven't been complaining because it wasn't a problem at all in a standard setup, but it certainly is in a stackable setup. I have asked our QC team to increase their vigilance in this respect for future production, but this doesn't address the thousands and thousands of rads on the market out there.

price of our fittings (set of 4) is $10 . That's the amount built-in the price of the stackables.

current prices are :

320: $77.95 incl fittings
220: $63.95 incl fittings
120: $47.95 incl fittings

[Meatpuppet]

If the price of the fittings by themselves is $10 and the additional price for including them with the rad is $10 then it seems to be a non issue from a consumers point of view. Why include something many folks don't want if there is no discount for the bundle as it were.

[whe3ls]

If the price of the fittings by them selves is $10 and the additional price for including them with the rad is $10 then it seems to be a non issue from a consumers point of view. Why include something many folks don't want if there is no discount for the bundle as it were.

places like sidewinder and froze cpu sell rads with the option of which fitting you want or no fittings. couldn't do you the same thing, gabe?