A-5 Velocity Problems

when you say wide open, what does that mean?

with the FVS, to achieve maximun air flow, resulting in maximun velosity (FPS) you need to have the FVA flush with the inside of the powertube. this way, you are not blocking the flow (reduces flow and velosity) and you don't want to back it out too far, creating a hole for the air to flow into (this will also slow down the flow and velosity)

I will suggest a couple of things here before we have to go to the LPK.

the first one will be cheap, if not free...

go and find 1 or 2 bb's. you know, like that you would shoot out of a bb gun. take the end cap off and pull out the drive pin and drive spring. where the drive pin goes in to the end cap, there a little hole. drop the bb's in there. you can fit a max of 2 i believe. but the drive pin back in, put the spring back on, put the end cap back on. This will boost you velosity in the same way the RVA does, tension on the drive spring to push it faster, resulting in faster velosity.

if that doesn't work...

next would be a madman spring kit, they are 10 dollars, look for them on ebay, they are not making them anymore. you will get three new drive springs, each with different tensions. the Red spring is the stiffest and will boost you velosity in the same way the bb's did. add this springs with or without the bb's. whatever you need to do.

last of all the RVA. i will suggest this because it will allow you have a better fine tunning of your velosity. you will add and subtract pressure and tension on you springs, changing the velosity much easier.

when using the RVA, keep the FVA flush with the inside of the powertube position. this will make it more effecient as well. not much, but every little bit helps.

good luck. the bb's have always worked for me and people i suggest it to on the field with low velosity problems

>> when you say wide open, what does that mean?<<

I have the fva adjusted out so that it is flush with the interior of the power tube.  The screw is still in place, it just does not impede the airflow at all.

Your BB solution got me in the range of 240 fps to 250 fps.  I'm on the right track.  I'll order up some springs and a RVA.

If I have to purchase a low pressure kit for my A-5, I think I'll consider selling the a-5 and find a marker that can shoot near 300 fps using hpa right out of the box.

Thanks for the help.

Terry.

Actually, I didn't use BB's.  I shaved down a pencil eraser to the diameter of the hole the spring pin fits into.  It may be about 3/8" high.

I called Tippmann, and they said they would send me out a stiffer spring at no charge. 

Thanks for the help.

Terry.

The red spring of the Maddmann spring set did the trick.

Thank you all for your help.