MCP655 + 3/8" ID Tubes

[Waymon3X6]

Hey guys, I just want to know if 3/8" tubing would fit on a MCP655. I have the Swiftech 220 kit currently, and I would like to change to 3/8" tubing instead of the 7/16" now, and this is the only part that stands in my way.

Thanks in advance!

[Waymon3X6]

Thanks for the reply. I just though of another idea, do you think it would work if I used the 7/16" hose and connected it from the pump to the reservoir, then used a 3/8" hose coming out of the reservoir?

[Waymon3X6]

I have no idea what version I'm using lol, all I know is its the one that came with the kit (the older version of the 220 apex) and it does not have a speed control on it.

[gillbot]

with D5 pump need the 1/2 on suction side of pump otherwise cavitation will happen, if using the varo version turn it down to #1

you can use 7/16 on the suction as long as you have a clear path and your res level is above the inlet.

http://img214.imageshack.us/img214/902/0000002hi4.jpg

This is all 7/16" tubing and I get no cavitation.

[warriorpoet]

I did it once. Took me 2 hours, a pot of boiling water and more muscle power than I have had to use in two years since. DO NOT put the 3/8" tubing directly on the inlet or outlet side. You will regret trying.

[atomic ferret]

I did it once. Took me 2 hours, a pot of boiling water and more muscle power than I have had to use in two years since. DO NOT put the 3/8" tubing directly on the inlet or outlet side. You will regret trying.

Lol. Even 7/16" on the MCP655 is a little tough, I couldn't imagine 3/8".

[warriorpoet]

Lol. Even 7/16" on the MCP655 is a little tough, I couldn't imagine 3/8".
Yeah I was totally RIPPED the next day :ROTF:

[Waymon3X6]

Ok well heres my plan since I remember how hard it was to get 7/16" on it. My plan is to just use two pieces of 7/16" tubes, one sucking out of the reservior and the other will connect to possibly the radiator. I will then switch over to 3/8" from the radiator and use it for the rest of my system (CPU, then to NB then 4870x2, then back to the reservoir.)

Let me know if you think this will work :)

[ben333]

I've got 3/8 tubing on my MCP 655. Just heat it with a lighter (or boiling water) and insert some pliers into the tube to stretch it out a bit, then warm it up again and slip it over the fitting. I've got all 1/2 fittings with the 3/8 tubing, no kinks, no caved in tubing :)

[Waymon3X6]

Ok, thanks KaptCrunch for verifying that. However, ben333 got me thinking that 3/8" tubing WILL in fact fit?

[warriorpoet]

Ok, thanks KaptCrunch for verifying that. However, ben333 got me thinking that 3/8" tubing WILL in fact fit?
It'll fit. Be sure to post video of you putting it on :up: :D

[Waymon3X6]

It'll fit. Be sure to post video of you putting it on :up: :D

Haha yeah so you can watch me struggle for 10 minutes right? :)

[warriorpoet]

Haha yeah so you can watch me struggle for 10 minutes right? :)If you're lucky/ good ;)

[gillbot]

I use a hairdryer to heat up the 7/16" tubing and a pair of needle nose pliers to stretch it a little before fighting it on.

[Waymon3X6]

I don't know, I think I will just buy a foot of 7/16" tubing and use it to connect the pump to the reservoir and radiator and use the 3/8" everywhere else.

[warriorpoet]

I don't know, I think I will just buy a foot of 7/16" tubing and use it to connect the pump to the reservoir and radiator and use the 3/8" everywhere else.
Aw, c'mon. You could make it your new avy :D

[tajoh111]

I did it, without boiling or heat.

Was difficult as hell those. In less than 5 minutes the second time around.

At the end I was very happy those, as the more difficult to put on, the tighter the seal.

[warmage]

3/8" with help of boiling water was easy for me , like 2min for each side
was using tygon r-3603 , didn't have any cavitation problem at all

[JOCKTHEGLIDE]

maybe buy new pump housing that accepts barbs and you can put whatever you want tubing size on??? I bought the detroitAC pump housing for the D5 pump which I think is the same as the MCP655?

[Waymon3X6]

maybe buy new pump housing that accepts barbs and you can put whatever you want tubing size on??? I bought the detroitAC pump housing for the D5 pump which I think is the same as the MCP655?

Unfortunately, my budget has mostly already been spent so therefore I cannot do this.

I will either try stretching the 3/8" over the top or use the 7/16" hoses.

[Snyxxx]

This same question has been posted a zillion times. Please search first.

3/8" tubing can go on a D5 easily if the tube ends are placed in boiling water for one minute. I have done it several times, no problem.

[Waymon3X6]

Jeez man sorry! Didn't know you were a mod/:clap:

[MTP04]

Another option if you don't feel like stretching the tubing is to modify the pump to fit 3/8" barbs.:)

Here's the guide, http://www.xtremesystems.org/forums/showthread.php?t=178965

I'll be doing this mod to my pump soon. Good Luck!

[Deezle]

I did it once. Took me 2 hours, a pot of boiling water and more muscle power than I have had to use in two years since. DO NOT put the 3/8" tubing directly on the inlet or outlet side. You will regret trying.
I have no regrets with mine :shrug: 3/8IDx5/8OD Tygon on a D5, works great and it's not going anywhere.

[Snyxxx]

Jeez man sorry! Didn't know you were a mod/:clap:

Not a mod, but sick of seeing the same old posts again and again through the years.

[Waymon3X6]

Another option if you don't feel like stretching the tubing is to modify the pump to fit 3/8" barbs.:)

Here's the guide, http://www.xtremesystems.org/forums/showthread.php?t=178965

I'll be doing this mod to my pump soon. Good Luck!

Hey that's an awesome guide! I may take that into consideration!

Thanks

[JOCKTHEGLIDE]

Another option if you don't feel like stretching the tubing is to modify the pump to fit 3/8" barbs.:)

Here's the guide, http://www.xtremesystems.org/forums/showthread.php?t=178965

I'll be doing this mod to my pump soon. Good Luck!

NICE!!! cheaper than buying a mod for it....I spend 45 bucks on mine though I wont regret it either way this way is the cheaper way.....

[LinusTech]

Not a mod, but sick of seeing the same old posts again and again through the years.

Then don't reply... Sheesh. You clicked on the thread. What did you think it was about?

As for the OP's question, I'm using Primochill 3/8" thick wall (3/8"ID 5/8"OD) tubing on the MCP655 with no problems. I wouldn't recommend trying to put thin wall on because once you heat it up it will collapse when you put force on it and make it very hard to work with.

I also wouldn't recommend the pliers trick (I used to do it) because I've heard it can cause the tubing to crack over time... Not verified, but I figure why take chances.

[warriorpoet]

I have no regrets with mine :shrug: 3/8IDx5/8OD Tygon on a D5, works great and it's not going anywhere.
Oh, it's nice ad tight all right :ROTF:

[Waymon3X6]

Then don't reply... Sheesh. You clicked on the thread. What did you think it was about?

I second that

Yeah guys, now I have so many different options, I guess I will first try to stretch the 3/8" tubing over the pump, if that doesn't work then I'll go and use the bigger tubing, or maybe do that mod... I just don't have all the necessary tools though.

[filthysanchez]

http://img84.imageshack.us/img84/5695/r3400d5ja2.jpg

3/8" with 5/8" OD r3400 used on a D5, forget where the picture's from

[JOCKTHEGLIDE]

Then don't reply... Sheesh. You clicked on the thread. What did you think it was about?

.

its like an itch though he cant stop, but look inside the thread :D

[ladderman]

this is how I did mine for the loop that cools the vrm's, n/b and s/b