Mach II Modded

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10-20-2006, 08:35 AM
LittleDevil

Mach II Modded

I decided that i will make SS in one of Mach cases. Today i got it back from painting, tomorrow i will braze new evap and suction line for it.
I will use original mach condensor + desuperheater and little stronger fan on it. I also make little hole for on/off switch on the back side of the case, because i will not use original mach controler. :)

Here are some pics:

http://ld-phasechange.com/images/Mach_2_mod/1.jpg

http://ld-phasechange.com/images/Mach_2_mod/2.jpg

thanks
10-20-2006, 01:54 PM
LittleDevil

Brazed condensor...

http://ld-phasechange.com/images/Mach_2_mod/5.jpg

http://ld-phasechange.com/images/Mach_2_mod/7.jpg

http://ld-phasechange.com/images/Mach_2_mod/8.jpg

Power on/off switch.

http://ld-phasechange.com/images/Mach_2_mod/6.jpg

thanks
10-20-2006, 02:08 PM
tim-

looks nice and clean as usually.

what's the plans for this? a customers unit?

any special features coming up on this unit?
gas? 507 as standard those days?
10-20-2006, 02:13 PM
LittleDevil

Gas will be R402a.

Quote:

what's the plans for this? a customers unit?

It isn't sold yet, need to finished it and than i will put it on Sale Thread ;)

thanks
10-20-2006, 02:50 PM
camouflage

:D Oh, I love it. Clean and easy - hoping for nice temps at all........;)

BTW, why do You did not use a double sizes condesor......, might bring some positive effect.:)

:toast:
10-20-2006, 03:57 PM
Nosfer@tu

Looking forward to temps :D

Problem is, Dont have anything to compare to :(
10-20-2006, 10:50 PM
LittleDevil

Quote:

Problem is, Dont have anything to compare to

Original Mach 2 has about 10 - 15c higher temps on load.

thanks
10-21-2006, 12:59 AM
Gray Mole

Nice :)

You're making this Mach into what it really should have been in the first place. Clean and powerful.

I've been doing the 'original condensor with desuperheater' for a while now and other than the very best aftermarket condensors I haven't found much difference.

It's a shame to have to up the fan power (and noise) but these condensors REALLY perform with extra fan power.

As for comparisons, I don't think there will be ANY comparisons when it's done :D

FYI:

Original Mach II 134a - -10 to -15 at 150w

Mach II GT 404a Unmodded - -20 to -25 at 150w

Mach II with upgraded Evap - -35 to -45 depending on gas

Knowing LD's work, it's much more likely to be closer to -45 at that load :D

Nice work, looks very clean.

Shame that there's no controller, but considering all the problems with Asus Conroe boards lately, maybe that's not a bad idea :rolleyes:

Cheers

Gray
10-21-2006, 03:50 AM
LittleDevil

Gray Mole thanks. Original controler is only for ''nice looking'' Here you can see compared temps, original mach thermal probe (controler) and k-type.

http://ld-phasechange.com/images/mach2GT_stephan/29.jpg

Here are new pics...

Brazed evap with suction line.

http://ld-phasechange.com/images/Mach_2_mod/9.jpg

Almost finised :D

http://ld-phasechange.com/images/Mach_2_mod/10.jpg

http://ld-phasechange.com/images/Mach_2_mod/11.jpg

http://ld-phasechange.com/images/Mach_2_mod/12.jpg

http://ld-phasechange.com/images/Mach_2_mod/13.jpg

http://ld-phasechange.com/images/Mach_2_mod/14.jpg

regards
10-21-2006, 03:52 AM
LittleDevil

Pressure testing now... Than i will try how much difference is between temp if you put k-type on the top of evap (suction hose) or if you put it on the side of evap.

regards
10-21-2006, 04:08 AM
Gray Mole

Quote:

Originally Posted by LittleDevil

Pressure testing now... Than i will try how much difference is between temp if you put k-type on the top of evap (suction hose) or if you put it on the side of evap.

regards

That's a good idea. I doubt it will be a huge difference, but it's something I've been curious about but never have enough time to check on every unit :rolleyes:

Controllers aren't always needed, and really for a benching system all you need to know is what temp for booting and that it's holding the load, and a K-Probe does that just fine.

I've got a couple of chassis sitting around here myself and when I get around to putting them back together I'll be painting them up nice too. It really looks great :toast:

Gray
10-21-2006, 06:42 AM
ayrtonsenna

nicest dd units made in europe there littledevil. your work is without comparison. drool, drool, slurp.
10-21-2006, 07:23 AM
fatty

Very nice sweet looking unit

I have a few spare chassis kicking around too :D
10-21-2006, 12:58 PM
LittleDevil

Thanks guys :toast:

Here are some temps, tomorrow testing for load :)

http://ld-phasechange.com/images/Mach_2_mod/15.jpg

thanks
10-21-2006, 01:03 PM
thunderstruck!

Your units always look so clean. Very nice stuff. What do you do for a living if I can ask?
10-21-2006, 01:39 PM
n00b 0f l337

Can't wait to see the load, tuning for what? Like 165 watts?
10-21-2006, 01:51 PM
symphy

-52 degrees measured exactly... what is the mach display showing ;) ?

Difference between display and correct value seems to be larger i ever thought... but i'm not building units ;)

Very nice and clean looking work you did there...
10-21-2006, 01:52 PM
LukeXE

I tested that, one temp probe on side of evap, and second one on suction line 1cm from evap.

On suction line I`ve got about 10*C lower temps than on side of evap, quick test, must do more
10-21-2006, 02:36 PM
n00b 0f l337

By the way I dont see a probe on your evap, is it on the back of the evap or something? That can't be that accurate.

I've also seen the same 10C Luke, thats why I do a drop of thermal paste on the lower side and then tape it on.
10-21-2006, 04:38 PM
kayl

nice build there little devil,
for load testing can we see 1hour of SP2004 Orthos.
personally this generates the most heat love to see what temps ya get on your conroe :toast:

http://sp2004.fre3.com/beta/beta2.htm
10-22-2006, 01:07 AM
Brettbeck

Great work!

But I don't see a high side access valve? Do you not use one?
10-22-2006, 01:27 AM
LukeXE

Brett, no need for it :)
10-22-2006, 01:37 AM
LittleDevil

Quote:

On suction line I`ve got about 10*C lower temps than on side of evap, quick test, must do more

Hehe 10c :D

IDLE:
evap: -52,3°c
suction: -52,4c

LOAD:
evap: -43,1°c
suction: -44,2°c

thanks
10-22-2006, 01:57 AM
LittleDevil

Quote:

What do you do for a living if I can ask?

School for now ;)

regards
10-22-2006, 06:54 AM
Brettbeck

Quote:

Originally Posted by LukeXE

Brett, no need for it :)

Theres no need for a high-side access valve in a single stage?

Quote:

Originally Posted by LittleDevil

School for now ;)

regards

:eek: :eek: :eek: How on earth do you afford all that top gear?!
10-22-2006, 07:08 AM
Duniek

Why you have resigned with orginal prommie condenser ?
10-22-2006, 07:16 AM
LittleDevil

It was broken :(

thanks
10-22-2006, 11:36 AM
LittleDevil

So unit is done, here are pics of finished unit.

http://ld-phasechange.com/images/Mach_2_mod/16.jpg

http://ld-phasechange.com/images/Mach_2_mod/17.jpg

regards
10-22-2006, 11:43 AM
Gray Mole

[QUOTE=Brett]Theres no need for a high-side access valve in a single stage?
[QUOTE]

Once you know your system and your gas behaviour, there really isn't a critical need for it unless you have problems with it and need an access for testing.

None of the prebuilt (mach/vapo) systems come with one and they don't use it for that reason.

Looks really good now LD, would be nice if paint would stick to the original plastic front but I've tried myself to paint them and even paint for plastics don't stick so well.

Gray
10-22-2006, 11:48 AM
LittleDevil

Thanks Gray, you also have PM ;)

regards
10-22-2006, 12:05 PM
Brettbeck

Finished unit looks great LittleDevil!

Quote:

Originally Posted by Gray Mole

Once you know your system and your gas behaviour, there really isn't a critical need for it unless you have problems with it and need an access for testing.

None of the prebuilt (mach/vapo) systems come with one and they don't use it for that reason.
Gray

So like fridge/freezers, they are not needed if you know how the gas behaves?
10-22-2006, 12:06 PM
camouflage

Quote:

Originally Posted by LittleDevil

Gray Mole thanks. Original controler is only for ''nice looking'' Here you can see compared temps, original mach thermal probe (controler) and k-type.

http://ld-phasechange.com/images/mach2GT_stephan/29.jpg

:eek: Haha - what a BS display temp - so the Nventiv guys thought to overclock by manipulating this..............:stick:

I wouldn't discuss about 5°C.........- but this is really hardcore......:eek:

:toast:
10-22-2006, 12:13 PM
camouflage

Quote:

Originally Posted by LittleDevil

School for now ;)

regards

:D If it is You on the advatar not just looking like 16...........:rolleyes:

BTW I love Your clean and straight work - think You are one of the best in EU........ ;)

:toast:
10-22-2006, 12:17 PM
LittleDevil

Quote:

If it is You on the advatar not just looking like 16...........

hehe, no i'm just 18 ;)

thanks
10-23-2006, 07:59 AM
kayl

little devil do you charge by weight, or just use discharge when off as high side.
paint come up nice :toast:
10-23-2006, 08:17 AM
LittleDevil

Low side pressure, unloaded temps, loaded temps.... :p:

regards
10-23-2006, 10:55 PM
maverik-sg1

Someone above was asking about the mach probe - is the reading so out because of the mods (probe cant handle the colder temps and was never designed to read the lower temps)? We know nventiv's displays have always been a bit squewed but i see modded units displaing extra cold.

Also to avoid the noise issue of having to up the fan capacity - would a bigger condensor be the answer?

Great work LD.

Mav

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