Bolt Chrono Test II

The Test

This is the second bolt comparison test.  Once again this test consisted of the aftermarket bolts, eight this time.  However this time the Stock bolt was not used in the comparison (because I forgot it at home).  The setup:

• A Vision Impulse was used with a Angled High Flow Vertical (HFV) installed.
• The entire gun was cleaned and lubed, including the Max-Flow, prior to the test.
• The Dwell was not adjusted once the test started.
• The output pressure on the max-flow was set at 125psi to meet the low 250fps field limit.
• For the test the air source was a NitroDuck 90/4500 preset compressed air tank running on gun.
• The paint used in the test was Big Ball (the new paper like shell)
• The barrel was a 14" Freak with a .684 insert.

Results:

Average FPS

	Average	Score
DEZign Openface	268.35	1
DEZign Venturi	260.50	2
Equalizer	255.75	3
IPB Undertow	250.75	4
MAXair (new)	249.10	5
MAXair (old)	248.05	6
IPB Werm	246.50	7
VooDoo	246.1	8

• The DEZign Openface bolt had the largest increase in velocity over all other bolts.  The DEZign Venturi style was second and the Equalizer was third.

Standard Deviation

	STD	Score
Equalizer	1.64	1
VooDoo	2.07	2
MAXair (old)	2.11	3
IPB Undertow	2.28	4
DEZign Openface	2.43	5
MAXair (new)	2.51	6
IPB Werm	2.59	7
DEZign Venturi	3.57	8

• The Equalizer was the most consistent bolt of those tested, having the least amount of standard deviation.  The VooDoo bolt was second and the MAXair (old) bolt was third.

Best Performance

Taking the scores from Average FPS and Standard Deviation and adding them together we should be able to see which bolt is the best all around bolt from this test.

	Average	STD	Score
Equalizer	3	1	4
DEZign Openface	1	5	6
IPB Undertow	4	4	8
MAXair (old)	6	3	9
DEZign Venturi	2	8	10
VooDoo	8	2	10
MAXair (new)	5	6	11
IPB Werm	7	7	14

Conclusion

Comparing the results of this test to the first test, the DEZign bolt (now bolts, plural) are still the most efficient giving the highest FPS gains over all others.

The Equalizer bolt from New DeSignz was one of the new bolts in this test and took the prize of most consistent.  However, the VooDoo bolt remained in second place even with more bolts were tested and the MAXair that was originally in 1st place fell to a close third.

In an effort to balance consistency with efficiency the New DeSignz Equalizer bolt scores the highest.  Second is the DEZign Openface bolt and third is the IPB Undertow.

The HFV worked exactly the same as a VFF in it's ability to add consistency to an Impulse.

Valve Caps DO have a performance advantage and it's much greater than I originally expected.  See Special Note below.

Special Note:

I conducted one additional test.  Since the MAXair (new) was the last bolt to be tested (I did not test them in alphabetical order) I degassed my Impulse and changed out my stock Valve Cap for a New DeSignz High Volume Valve Cap (HVVC).  I then aired up, shot and recorded 20 additional shots.  While I expected to see a small increase in velocity, I was very surprised to see a little over 25fps increase in velocity.

Special thanks to Derrek "SG" Phelps from Team Chill Factor for hanging out and recording the numbers while I shoot my Impulse over the chrono.