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XSPC Acrylic top

post #1 of 10
Thread Starter 
Has anyone modded the inlet and outlets to 1/2"? Are there drawbacks to increasing the diameters?

Im sure this has been covered before, but its so specific i didnt even try to search, but if you could point me to a thread or reply with your experience id appreciate it
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post #2 of 10
for what? I guessing the DDC but XSPC make tops for a few different pumps
post #3 of 10
Thread Starter 
Yea im sorry, for MCP355
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post #4 of 10
Lol wut?

it's already made to fit fittings big enough for 1/2inches.

not sure what you are asking
    
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post #5 of 10
Thread Starter 
:::sigh::: i was hoping to hear from people who own one so they would know what im talking about. The outlet isnt the same size as the thread bore, its almost 1/8" smaller than a 1/2" fitting...

What i want to know is if its designed that way for a reason vs. just how it turned out. I know that this top flows better than the stock top from all the charts/tests out there, but id like to know if i bore it out will it hurt more than help.
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post #6 of 10
I saw a thread of someone modding it, but really, what will u be running to be needing to increase the size of the outlet?

i'll look around, saw it on XS before. But the top is good enough to just plow through most setups

EDit: and i do own one, so dont assume i dont...
    
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post #7 of 10
Thread Starter 
Eh, its more of a OCD thing i guess (shrug)...just like it bothers me that the bore for the pump wheel isnt exactly round...
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post #8 of 10
It's designed that way, don't assume increasing the port sizes is beneficial...it'll likely make it worse. I've done a lot of top testing over the years, and many times tops with really big port sizes loose quite a bit of head pressure at lower flow rates. It needs to match the impeller vanes which are a lot smaller than 1/2"
    
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post #9 of 10
Thread Starter 
Thanks, thats why i asked
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post #10 of 10
There are a few mods you can do to stock tops that seem to help though. I've seen a few examples where users have taken the stock DDC top and created a straight in inlet port that will remove the elbow.

I've also experimented myself with the stock D5 top by cleaning up the exit port with a dremel to sort of port/polish the exit. I did loose a little pressure under 1 GPM, but gained a bit beyond that which is beneficial.

There are some tops out there that could use some minor cleanup, but I would hesitate to modify a XSPC top...the few I have tested were pretty well optimized.
    
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