Fat Boy Cascade

[4Qman]

Today i charged cascade 2nd stage.

Was charged at Baz's a few weeks back but bad valve leaked so i got a little R1150 to charge it myself. Had a epic getting regulator but thanks to SoddemFX which is a Guru on Phase in my eyes. Also thanks to Baz and of course me main man Paul "sacha35" who built it with me ;)

Will get more pics up soon just i am working nights and need bed again :no:

A vary of Loads i did for around 15minutes each Load. Ambient was 5oCish i think as was cold. My hands felt it :unsure:

IDLE was a tricky one as it was a little wired and i think it was due to my UEI meter but it was around -106oC and 2nd stage =114PSI.
It did climb more but i wasn't fussed :D

270w - Evap -105.4oC and 1st Stage -41.9oC
Pressures @ 1st 125PSI - 2nd 135PSI

300w - Evap -103.7oC and 1st Stage -41.2oC
Pressures @ 1st 130PSI - 2nd 145PSI

340w - Evap -101.1oC and 1st Stage -40.1oC
Pressures @ 1st 132PSI - 2nd 170PSI

EDIT:Specs Added

1st Stage
Capacity 24,500/24,700 Btu/h 7,179/7,238 Watts
Displacement 29.0 cc/rev 1.76 in3/rev
http://www.lge.com/products/componen...pdf/GP290P.pdf

2nd Stage
Cooling Capacity
Btu/hr : 14100/14300
Watts : 4132/4190
http://www.lge.com/products/component/aircon/download/r_R407Cseries/zip/NJ236P.zip

R507 1st stage "Thanks Baz"
R1150 2nd stage

[4Qman]

340w Load had around 20minutes and didn't budge. 1st stage is a complete Animal. The unit holds 350w but in the 90's so not worth it and 270 with collapse so its a fine nice tune think.

http://i19.photobucket.com/albums/b167/4qman/S7300801.jpg

Idle but i will test again tomorrow with a Fluke meter
http://i19.photobucket.com/albums/b167/4qman/S7300799.jpg

More pics tomorrow when i have another Day to attach to a CPU :p Dam im excited.

[Dualist]

270w - Evap -105.4oC and 1st Stage -41.9oC
Pressures @ 1st 125PSI - 2nd 135PSI

300w - Evap -103.7oC and 1st Stage -41.2oC
Pressures @ 1st 130PSI - 2nd 145PSI

340w - Evap -101.1oC and 1st Stage -40.1oC
Pressures @ 1st 132PSI - 2nd 170PSI

Nice load and temps there Dave, excellent stuff ;)
And those pressures are lovely too, sweet unit :cool:

[skull_fcuk]

A lot of this makes no sense (all the talk of collapsing and pressures). I take it high pressures are good?

[Dualist]

Those aren't high pressures on the second stage, they are nice and low.
Dave, do you just have straight R1150.? Or did you add a little R290 as an oil carrier.?

[sacha35]

Outstanding work on the tuning dave, some very good results there mate, will have to see if it can hold this chip i have here:D

[4Qman]

Those aren't high pressures on the second stage, they are nice and low.
Dave, do you just have straight R1150.? Or did you add a little R290 as an oil carrier.?


Straight R1150. Using a decent oil sep so that takes care of that. :waiting:

[sparkY1000]

Lovely unit Dave! Looking forward to seeing some quad core thrashing! :D

[Dualist]

Just wondered dude, R1150 doesn't carry oil too well so some use R290 to carry POE oil around the system, well, up to the oil seperator then feeds the suction side a more healthier supply of oil giving the compressor a longer life.

I think it was either 'Ricky' or 'Before' who found that out, but you have a very large flow rate on that second stage so it'll be fine, sorry I came over as patronizing dude, I just worry like an old woman sometimes. :)

[4Qman]

Just wondered dude, R1150 doesn't carry oil too well so some use R290 to carry POE oil around the system, well, up to the oil seperator then feeds the suction side a more healthier supply of oil giving the compressor a longer life.

I think it was either 'Ricky' or 'Before' who found that out, but you have a very large flow rate on that second stage so it'll be fine, sorry I came over as patronizing dude, I just worry like an old woman sometimes. :)

Na mate your fine you got me thinking. :huh: I'm sure Tom would have mentioned something but i shall ask. Thanks for pointing out mate ;)

[Dualist]

Cool ;)

[bazx]

this beast has been a long time coming

but what a cascade in the end you must be very pleased

the UK has some of the most talented builders in the world

[Stocky]

nice temps! I would really like one of them, but I've been informed that they are very expensive :(

[Dualist]

Depends Stocky, if you wanna bench on LN2 once a month then that gets expensive over a year too. Buy a system like this, job done, just flick da switch :D

Can cost between £900-1500+ depending on spec and how you do it. Acquiring tools, gases and experiance if you do it yourself, more for filling that way but can be even more costly.

[Stocky]

That is a lot of cost when compared to a single stage, but I'd really like to go to the next level which I see as being a cascade. I guess I'll have to do more research in it (there's lots on them over at XS) whilst saving up! :cool:

[Sub_zer0]

Dave i wanna see this in action before i go to the gulf so get cracking ;) looking the nuts though mate.

[Johnny Bravo]

Great work man you're really taking off!

[4Qman]

I spent a few more hours today in garage. :)
http://i19.photobucket.com/albums/b167/4qman/S7300811.jpg

45minutes @ 340w LOAD After after Unit was running for a good 3hrs so SOLID as a ROCK
http://i19.photobucket.com/albums/b167/4qman/S7300810.jpg

[4Qman]

E6850 5Ghz 1.9v

IDLE
http://i19.photobucket.com/albums/b167/4qman/S7300832.jpg

LOAD
http://i19.photobucket.com/albums/b167/4qman/S7300830.jpg

[skull_fcuk]

can i come round to play? looks brilliant. must be great having something like that at home!!

[Thickbrit]

Very impressive mate.Is it the strength of the 1st stage that gives it such a small idle/load delta ?

[sparkY1000]

Very nice Dave!! Anymore left in the chip?

[Dualist]

What temps have you got with Speedfan.?

[4Qman]

can i come round to play? looks brilliant. must be great having something like that at home!!
Well it uses a lot of juice. I love it my GF dont tho.

Very nice Dave!! Anymore left in the chip?
Well i have a little problem with hardware. My PCI wont budge past 110 now when it was 125. I think its Ram causing the problem.

Very impressive mate.Is it the strength of the 1st stage that gives it such a small idle/load delta ?

1st stage is the key. I took lots of pointers when picking 1st stage as i see other cascades have trouble with high load. I know CPU's are suppose to kick less heat load these days but i thought if building one go best i could get.

What temps have you got with Speedfan.?

Mate speedfan is no good. I cant ready CPU temps with anything as the bios locks at 9oC :@

[Dualist]

Mate speedfan is no good. I cant ready CPU temps with anything as the bios locks at 9oC :@

Bugger, I wanted to see how efficient that Chilly1 evap was, core vs evap :(

[4Qman]

Bugger, I wanted to see how efficient that Chilly1 evap was, core vs evap :(

Me 2. Its the new Rev. I know Sacha was getting superb CPU temps when u uses his mach unit. I need a new Motherboard :waiting: