Wizbaa Machine Works - CCI Powertubes!
 

EDIT: Well I messed these tubes up, the valve end is to long. Im working on a part to salvage the ones I have done. More details here:http://www.mcarterbrown.com/forums/c...ml#post2556441

I'll have more material in soon and will make more, but these are on hold temporarily.

/Edit

Hello MCB,

I've spent many hours this past year getting these things right, and im finally ready to put these into production. I'll be updating this thread as I go, usually only a few at a time because these are all spun by me on my lathe.

Here's a good shot of the difference in port size between my custom powertube , and a stock CCI P/T. Look closely and you'll see the trimming i've done to the brass cup.
http://www.mcarterbrown.com/gallery/.../IMG_12641.JPG

The ports in my P/T are .155". 2 ports X .155 = .310" total

the port in the CCI P/T are .088". 3 ports X .088 = .264" total

The threads on my Tubes are also 10-32 as opposed to 6-32 on the CCI tubes. These are much stronger, and will never snap off in your valve.

http://www.mcarterbrown.com/gallery/.../IMG_12661.JPG
http://www.mcarterbrown.com/gallery/.../IMG_12593.JPG
http://www.mcarterbrown.com/gallery/.../IMG_12582.JPG
http://www.mcarterbrown.com/gallery/.../IMG_12673.JPG
As seen above, the ID of my tubes are also larger than stock the stock CCI P/T. Here's a thread comparing the IDs of a bunch of different P/ts.

http://www.mcarterbrown.com/forums/c...imensions.html

The larger port sizes will increase you velocity by aprox 25fps for the .1875" ID and the .200" ID will increase it by a reported 40fps! These are very effective with short barreled guns, and in low pressure set ups. Each tube comes fitted with a modified cup and seal, with additional seals becoming available later.

Current Stock:
3 - .1875 ID
2 - .200 ID

SALES ON HOLD!!!$35 each, + $5 S/H.

great choice of powertube for regged HPA use. good stuff!

Give me a few days to lock down some funds I want one.My quest for my all aftermarket phantom continues !

How will they do with 12 gram set ups?

Your giant ports look great, good job. I found similar spec'd tubes very helpful in my redux. What did you test these in for the listed fps increase?

I want in when are more being made?

I have not done testing with 12 grams, one of the people from my first batch is using them in a Redux. We will have to wait for more extensive results.

Thank you, the results for the .200ID came from two seperate testers, one using a low pressure Phantom set up and another using a Redux. These are the two set ups(low pressure, and short barreled) that I expect to benefit the most from this upgrade.

ATM I am making these to stock, in small numbers. I'll be keeping a running count near the bottom of my initial post.

pm sent

Aw heck I'll test one out with 12 grams~! PM being sent

I'll take one in the .200 when you are ready to sell. Shoot me a PM with your Paypay and I will remit my Info. Thanks for your time. Feyd.......