Kaze Ultra, Slip Stream, or Yate Loon for MCR120-QP?

[thilanliyan]

Which fan would be better to use with the Swiftech MCR120-QP radiator?

The Kaze Ultra (38mm thickness) has a huge center hub so I figure there would be a large dead spot on the radiator (fan shroud not an option) but has higher static pressure. The particular ultra kaze I got only flows 44cfm but is dead silent (a bit of a priority). Would having the fan in a pull configuration be better for the deadspot issue?

The slip stream (25mm thickness) flows 68cfm, is louder (24dba vs 19dba for the kaze ultra) but has lower static pressure.

I also have some Yate Loons I could use.

I could put 2 of either fan in push/pull but would prefer just one in a pull configuration to pull air out of the case (the rad will be internal). Which brings me to another question: push or pull for radiator fans?

 

[Zepper]

The Sanyo Denki 109R1212H1011 is considered one of if not the best of radiator fans and it has a 2-1/4" hub. Big motor = big pressure... The Yates from petra seem to have better pressure capability than those from elsewhere - certainly the cheapest that work well on radiators. See Vapor's tests in the forums on http://www.XtremeSystems.org/forums/ (do Advanced search for threads started by Vapor in the Air Cooling and WaterCooling sections). His thing is radiator fans.

The C-M (rated at 110 CFM) ball bearing fans in my FS/T listing (linked below) should also do well on radiators as they have a decent static pressure rating.

Can't go by factory numbers on noise - check out independent testing on the Silent PC Review site and XtremeSystems as above.

For high pressure duty such as radiators or on heat sinks, ball bearing fans should do better, but the Panasonic Wave Bearing seems to do well.

.bh.

 

[aigomorla]

Originally posted by: Zepper
The Sanyo Denki 109R1212H1011 is considered one of if not the best of radiator fans and it has a 2-1/4" hub. Big motor = big pressure... The Yates from petra seem to have better pressure capability than those from elsewhere - certainly the cheapest that work well on radiators. See Vapor's tests in the forums on http://www.XtremeSystems.org/forums/ (do Advanced search for threads started by Vapor in the Air Cooling and WaterCooling sections). His thing is radiator fans.

The C-M (rated at 110 CFM) ball bearing fans in my FS/T listing (linked below) should also do well on radiators as they have a decent static pressure rating.

Can't go by factory numbers on noise - check out independent testing on the Silent PC Review site and XtremeSystems as above.

For high pressure duty such as radiators or on heat sinks, ball bearing fans should do better, but the Panasonic Wave Bearing seems to do well.

.bh.

zep is correct however the petra yates were traced down to newer fan models.

jab-tech john did the investigation and gave us a lot of evidence.

the open corners that jab-tech used to carry, which vapor tested used 80mm fan motors. This was why it was weaker.

Jab-tech john does not carry those anymore, and now his yates are on par with petras.

The best fan in your list is obviously the kaze ultras tho. But there LOUD.

 

[thilanliyan]

Thanks for the suggestions but I don't wan't to buy any more fans. Also, silence is a priority for me and my computer is fairly quiet as it is (I can hear HDD seeks)...and denki (I can't seem to find these in Canada) or panasonic fans aren't that quiet are they? I've checked out SPCR and the Kaze Ultra 1000rpm didn't do so well while the Slip Stream 1200rpm did fairly well although was louder. http://www.silentpcreview.com/...cle832-page3.html#SS-H

However, they say to use the Ultra in high pressure situations...so does the MCR120-QP require a high pressure fan like the Ultra?

Originally posted by: aigomorla
The best fan in your list is obviously the kaze ultras tho. But there LOUD.

I bought the 1000rpm version though which is very quiet (quieter than the 1200rpm slip stream although the slip stream undervolted to 5v still pushes as much air as the Ultra) but doesn't do so well in the CFM test (from the SPCR test I linked to)...my main concern is the seemingly large dead spot due to the huge center hub (the slip stream has what looks to be a hub half the diameter). Is the dead spot reduced if the fan is in a pull configuration?

 

[aigomorla]

Originally posted by: thilan29
Thanks for the suggestions but I don't wan't to buy any more fans. Also, silence is a priority for me and my computer is fairly quiet as it is (I can hear HDD seeks)...and denki (I can't seem to find these in Canada) or panasonic fans aren't that quiet are they? I've checked out SPCR and the Kaze Ultra 1000rpm didn't do so well while the Slip Stream 1200rpm did fairly well although was louder. http://www.silentpcreview.com/...cle832-page3.html#SS-H

However, they say to use the Ultra in high pressure situations...so does the MCR120-QP require a high pressure fan like the Ultra?

Originally posted by: aigomorla
The best fan in your list is obviously the kaze ultras tho. But there LOUD.

I bought the 1000rpm version though which is very quiet (quieter than the 1200rpm slip stream although the slip stream undervolted to 5v still pushes as much air as the Ultra) but doesn't do so well in the CFM test (from the SPCR test I linked to)...my main concern is the seemingly large dead spot due to the huge center hub (the slip stream has what looks to be a hub half the diameter). Is the dead spot reduced if the fan is in a pull configuration?

Your getting 2 things confused here pal.

fans are messured in 2 ways. STATIC and CFM.

CFM is how much air they push, but STATIC is what you want to pay more attention to when you mount it up front a sink or radiator.

Slipstreams have the best CFM, but once you put a rad, there static absolutely blows. The Kaze you need the 3krpm, and downvolt to 1300-1700 for them to be effective.

 

[thilanliyan]

Originally posted by: aigomorla
Your getting 2 things confused here pal.

fans are messured in 2 ways. STATIC and CFM.

CFM is how much air they push, but STATIC is what you want to pay more attention to when you mount it up front a sink or radiator.

Slipstreams have the best CFM, but once you put a rad, there static absolutely blows. The Kaze you need the 3krpm, and downvolt to 1300-1700 for them to be effective.

I know the difference but I'm stuck with these fans (1000rpm Ultra and 1200rpm Slip Stream).

My main questions are:
1)Is this particular 1000rpm Ultra better than the 1200rpm Slip stream even though performance is not that great to begin with? I did a non-scientific test: put both fans up to the radiator and they seemed to flow about the same if not a bit in favour of the slip stream but was louder than the Ultra.

2)The large hub on the Ultra, will there be a large dead spot when mounted on the rad and will this affect performance greatly? Is the dead spot affected by whether the fan is in a push or pull configuration?

 

[zagood]

What aigo's saying is that the specific fans you have aren't that great for your application.

If you're dead set against buying new fans you'll need to test the ones you have. If you find that they're not what you want, you'll have to either buy new ones or deal with it.

 

[thilanliyan]

Originally posted by: zagood
What aigo's saying is that the specific fans you have aren't that great for your application.

If you're dead set against buying new fans you'll need to test the ones you have. If you find that they're not what you want, you'll have to either buy new ones or deal with it.

Okay that's fine I can test the fans but what about the dead spot though? Does it drastically reduce performance? Is it reduced in a pull configuration?