Any news on the cascade xxx?

[AngryAlpaca]

Damn the whiny noise! The teal would be approximately representative of the Mag 3, correct? Oh well. Are the results of those experiments (the ones with the higher flow along with the higher temperature offering a higher overclock) applicable to the WW as well, or is it simply a Cascade thing?

[Cathar]

Originally Posted by AngryAlpaca

Damn the whiny noise! The teal would be approximately representative of the Mag 3, correct?

Maybe this will clarify?

[Harry]

I live in the us, and I am considering buying an Iwaki md20-30rz pump. Since you have had experience with the new danger den pumps, would you reccomend them over the iwaki pumps?

[jlrii]

Originally Posted by Harry

I live in the us, and I am considering buying an Iwaki md20-30rz pump. Since you have had experience with the new danger den pumps, would you reccomend them over the iwaki pumps?

Iwaki is much better. If you gotthe bucks thats the one to go for.

[Cathar]

Originally Posted by Harry

I live in the us, and I am considering buying an Iwaki md20-30rz pump. Since you have had experience with the new danger den pumps, would you reccomend them over the iwaki pumps?

Hmmm, tough call. Iwaki are better quality - no two ways about it. The D4's when over-volted catch up to even the really powerful Iwaki's though, and put less heat into the water when doing so. Life-span is something to consider though when over-volting and right now that's an unknown. Have been running my D4's at 16v fairly often (weeks at a time non-stop on occasion) with no apparant ill-effects yet.

[Cathar]

Well I should be picking up the Storm/G4 later today. Been testing the Storm/G3 against the Cascade SS, establishing a base-line and verifying results. On further testing the G3 has retained its ~1C lead over the SS, using a Barton AthlonXP 2800+ @ 2500MHz/1.95v running BurnK7, and these results apply to both the on-die diode, and external monitoring. Performance vs pumping pressure tests show that at lower pumping pressures (~Eheim 1048) that the G3 still holds a slim lead over the SS, which slowly grows as the pumping pressure is increased.

With the G4 I don't anticipate any major gains - slightly more than a 0.5C improvement at the standard testing conditions if reality matches theory. It may work out a little better than that as the G3's implementation did have a flaw that I tried to work around, but am uncertain as to how successful I was in doing so.

[Harry]

Does the heat that the Lian D4 puts into the water justify its noise, and lifespan over the iwaki? Also, which Iwaki model would you reccomend?

[Blackeagle]

At approx. what gpm & head rates do you see the 1C improvement over the Cascade SS?

[Cathar]

Originally Posted by Harry

Does the heat that the Lian D4 puts into the water justify its noise, and lifespan over the iwaki? Also, which Iwaki model would you reccomend?

Noise is a subjective thing. I can't factually state what is annoying to me will be annoying to someone else. A moderate assessment of the D4's noise based on more experiences than just my own is that it whines, the pitch of the whine is annoying, but the volume is not so loud that it cannot be managed, or that if there are sufficient sources of other types of noise in the case that its noise will just become lost in the cacophany. People who are noise sensitive will hate it. People who accept high-speed fans as part of everyday life will hardly notice it. For myself it's a case of the noise always being noticable without specifically having to listen for it, but due to sticking the pumps in a 1/2" thick MDF box, the volume is tolerable. I can't be any more specific than that - noise is a subjective perception.

Which Iwaki model? If you live in a 50Hz power country, the MD20-RZ seems the best fit. If you live in a 60Hz power country, then the MD15-R for a moderate one-size-fits-all type of pump, or the MD20-R for low-moderate restriction setups, or the MD20-RZ for moderate-high restriction setups.

[Cathar]

Originally Posted by Blackeagle

At approx. what gpm & head rates do you see the 1C improvement over the Cascade SS?

I want to wait until I test the G4. Basically ranges from ~0.4C better at Eheim 1048 sorts of pumping pressures, to 1.0C better at a 50Hz Iwaki MD30-RZ sort of pumping pressure, with a fairly linear slope of increases between those two points. I'm extremely hesitant to put a lot of faith behind those sorts of resolutions as it's basically pushing the limits of what I can reliably detect and not mistake it as just "testing noise". Theory says that the G4 should be better by enough that I can start to put some more faith in the scale of the results. My goal here is to develop the G4 as well as I can, and ask nicely for Phaestus to independently verify my findings.

[AngryAlpaca]

I'd have to agree about the whining noise. Just post the sound file... It speaks for itself.

[Cathar]

Well here's a piccy of a somewhat dirty prototype G4. Sides don't quite align properly, but since people always ask for pictures....



Sorry, no "internal" shots...

[pHaestus]

needs more "i will kick your ass" stickers across the individual platess to seal it up (think Danger Den meets Schwartzenneggar)

[killernoodle]

Looks sexy nuff for me. What made you choose aluminum? (or is that some kind of plastic, delrin perhaps?)

[trit187]

delrin, totaly block weight is ~300g according to the source. including barbs.

[BalefireX]

Whats that missing?

Chrome High Flow Barbs.

[Cathar]

Originally Posted by BalefireX

Whats that missing?

Chrome High Flow Barbs.

Well the barbs are 10.5mm ID. 1/2" OD barbs don't come with much wider ID than that. Indeed I am giving very serious thought to getting them chrome plated.

Yes, the material is black delrin.

[SysCrusher]

Originally Posted by Cathar

Well here's a piccy of a somewhat dirty prototype G4. Sides don't quite align properly, but since people always ask for pictures....

Very similiar so far to what I got. Will be interesting to see the internals soon and how much of a difference that makes. I like the delrin, makes for a light weight block. Is it cheaper?

[Cathar]

Yes, the delrin certainly seems to be less dense than polycarbonate. Seem to be able to use a lot of it and still not add that much in weight.

LOL - I like the game of cat'n'mouse between you and I Syscrusher. Actually am not too sure that pictures of the internals of the G4 would be all that helpful to many. Unless you really understand what you're looking for you'd be forgiven for thinking - "Yeah? So what's the big deal?"

[SysCrusher]

Wonder if I can find it in different colours other than black or white. Must be easier on the mill?