Mcp 350 or MCp655 for storm waterblock

[marcin12]

What do you think would do better modded mcp 350 or mcp655 with storm waterblock. Plus two radiator PA160 and BIP2

[Spot]

The MCP655 or D5 anytime over the Delphi (MCP350).

[RedViper]

I've never tried a 350, but I've been very pleased with the performance of 2 655's and a Storm v1.

[Paapaa]

MCP655 and MCP350 perform almost identically with very high restriction systems. With less restrictive systems MCP655 gives more flow. MCP655 also heats the water 2x more and produces more noise so I'd take a modded MCP350 anytime over MCP655/D5.

[RedViper]

My understanding is that a single 655 dumps 18 watts at setting 5. That, of course, totals 36 watts for my 2 655's. Sounds bad, yes? That hasn't been the case with my current loop. Judging by my reported temps, coolant is exiting my rad (HE 120.3 + 3x120x38mm Panaflo 80CFM) very close to ambient. The moral of this story? You can get away with a relatively hot pump if you have a decent sized rad with enough air whistling though it to expel the extra heat.

Noise: Unless I was very lucky and got to freak pumps, the 655 is suprisingly quiet. In a test loop, with no fans they were barely audible. In fact, I have to touch them every now and then to make myself feel better.

[marcin12]

I already own modded mcp350 and I was wondering if would go well along with storm r2.

As goes for heat dump, I used to have mcp655 and when it run buy itself to let the air out of the loop it would make radiator little warm to touch.

[Long Haired Git]

Approximator V2 for BETA release.
CPU figures are Robotech's die simulator.

Approximator

Summary: There is a small benefit to the MCP655 (less than one degree) for most setups.

[bobo5195]

quick thing i noticed.

The energy terms don't appear to take into account pump energy dump. Do you also consider frictional losses in the blocks from pressure drops?

[stev]

If you have a DDC pump from Swiftech called the MCP350, then get a D5 pump and upgrade to 1/2" ID tubing.

If you own a DDC PLUS pump from Danger Den, then you should be fine. The PLUS is 18W vs. the Swiftech MCP350 older version at 10W of pumping power.

The DDC PLUS is like the P4 setting on the D5 pump. This way, you can stay with 3/8" ID tubing.

[marcin12]

Originally Posted by stev

If you have a DDC pump from Swiftech called the MCP350, then get a D5 pump and upgrade to 1/2" ID tubing.

If you own a DDC PLUS pump from Danger Den, then you should be fine. The PLUS is 18W vs. the Swiftech MCP350 older version at 10W of pumping power.

The DDC PLUS is like the P4 setting on the D5 pump. This way, you can stay with 3/8" ID tubing.

I own mcp350 and it was modded with that 1/2id inlet, the tubing in current system that I run is 1/2id

[Long Haired Git]

Originally Posted by bobo5195

quick thing i noticed.

The energy terms don't appear to take into account pump energy dump. Do you also consider frictional losses in the blocks from pressure drops?

The pumps dump heat into the loop in the V2 code. Wattage dumped is shown in the pump info.

Frictional losses? If you mean resistance to flow, I assume it all handled by whomever did the PQ graphs, ie: Robotech. If you mean the heat caused by the blocks, again I assume it is all factored in by Robotech's "real world" testing and thus in the C/W values he provided.