I marshall at the weekends and I have a spyder shutter. My question is this - my shutter has a reg. and I've never had any problems with it. At the weekend, 3 guys came to our site, two of them had their own spyders - an SE and a TL+. When I took them out to chrono, the TL+ was fine, bit slow, but a few twists at the back and it was up to 270 no problem.
The problem came with the spyder SE. I chronoed it at 240. Hmm, thats a bit slow, so I dialed it up too. Got it up to 260 fully turned up. Thought, hmm, should be ok, maybe just needs a new spring. Then I fired a rapid string through it, more out of interest than anything else. The chrono shot up to 340. OMG I think, what have I done? Then I noticed the copious amounts of liquid getting blown out the feed and porting as I fired it. I said - 'Do you have an anti-syphon in that tank? 'I don't know comes the reply'. So I swapped the tank for one of the sites tanks (which all have anti-syphon). Cock the spyder, fire... prrrrtttt. The thing cycles pathetically, a ball virtually rolls out the end and it all dies horribly.
Now, my guess is that the expansion chamber was filling with liquid co2 when I rapid fired it, but why did the thing work ok for the first few shots when the expansion chamber was empty, but not when the anti syphon was on? Also, why was the velocity so low initially? I've heard that spyders are bad in cold weather, but then why does my shutter work ok (since a reg can only drop the pressure) and the other old spyder without a reg work, but the SE+ not?
Answers on a postcard, sorry to rabbit on, but these things interest me
Tom
PS The differences beteen a TL+ and an SE are:
TL+
Mini expansion chamber, LP chamber
SE
Expansion chamber, nice green anno
The problem came with the spyder SE. I chronoed it at 240. Hmm, thats a bit slow, so I dialed it up too. Got it up to 260 fully turned up. Thought, hmm, should be ok, maybe just needs a new spring. Then I fired a rapid string through it, more out of interest than anything else. The chrono shot up to 340. OMG I think, what have I done? Then I noticed the copious amounts of liquid getting blown out the feed and porting as I fired it. I said - 'Do you have an anti-syphon in that tank? 'I don't know comes the reply'. So I swapped the tank for one of the sites tanks (which all have anti-syphon). Cock the spyder, fire... prrrrtttt. The thing cycles pathetically, a ball virtually rolls out the end and it all dies horribly.
Now, my guess is that the expansion chamber was filling with liquid co2 when I rapid fired it, but why did the thing work ok for the first few shots when the expansion chamber was empty, but not when the anti syphon was on? Also, why was the velocity so low initially? I've heard that spyders are bad in cold weather, but then why does my shutter work ok (since a reg can only drop the pressure) and the other old spyder without a reg work, but the SE+ not?
Answers on a postcard, sorry to rabbit on, but these things interest me
Tom
PS The differences beteen a TL+ and an SE are:
TL+
Mini expansion chamber, LP chamber
SE
Expansion chamber, nice green anno