PCRInet Logo Paintball Competitions and Ratings Int'l

Return to Previous Page


please visit our sponsors

PCRI Product Evaluation

Bob Long Spyder Vacuum Chamber

The Bob Long Cyclone Vacuum Chamber for the Spyder is designed to allow you to run your Spyder on low pressure, giving you better cold weather performance. The Cyclone Vacuum Chamber retails for $24.95.

Design/Construction:

The Cyclone Vacuum Chamber is manufactured from aluminum and weighs just under one ounce. The Vacuum Chamber is four inches in length and contains one o-ring. To install the Cyclone Vacuum Chamber, simply remove the cup seal plug and replace it with the Cyclone Vacuum Chamber.

The design of the Cyclone Vacuum Chamber is simple and the machining is well done.

Design/Construction rating (4)

Performance/Versatility:

Velocity Consistency: All velocity consistency testing was done using C02. Read from left to right..

A sample of what we've found...

Using the stock Spyder

282 fps 288 fps 281 fps 285 fps 284 fps 290 fps 287 fps 283 fps 281 fps 281 fps 283 fps 280 fps

average fps 284 fps

low fps 280 fps (-4 fps)

high fps 290 fps (+6 fps)

Using the upgraded Spyder

285 fps 286 fps 285 fps 289 fps 283 fps 290 fps 288 fps 287 fps 287 fps 289 fps 284 fps 286 fps

average fps 286 fps

low fps 283 fps (-3 fps)

high fps 290 fps (+4 fps)

Observations: Using the Cyclone Vacuum Chamber we observed slightly improved velocity consistency compared to the stock Spyder. Since the Cyclone Vacuum Chamber allows the Spyder to work on lower pressure, expect to get a few less shots per tank fill using C02 or nitrogen. The up side here is that using the Cyclone Chamber, the paintball is "pushed" rather than hit with gas which will allow you to shoot a more fragile paintball. You will also get improved cold weather performance using the Cyclone Vacuum Chamber with C02.

Performance/Versatility rating (3)

Price:

At $24.95, the Cyclone Vacuum Chamber is priced slightly higher than most of the other low pressure Spyder chambers. However, this is one of the larger low pressure chambers available for the Spyder. The Cyclone Vacuum Chamber is a very good value.

Price rating (3)

Conclusion:

If you're looking to lower the working pressure of your Spyder, or to get a bit more consistent velocity give the Cyclone Vacuum Chamber a look.

PCRI IS PLEASED TO AWARD THE CYCLONE VACUUM CHAMBER FROM BOB LONG OUR THREE STAR SEAL OF QUALITY.

PCRInet is published by John Amodea, and cannot be copied, reproduced, faxed, forwarded, or e-mailed  by anyone or to anyone without our written permission. Copyright 1998-99 © John Amodea. Web Services by InterNetworks.