I just installed a Forge DV using the street spring. It seems as if I lost overall acceleration

 

Are you throwing an engine code? Does it use a rubber diaphram? If so check it. Forge didnt work for me with my TT either so I went to Bailey.

 

Which Forge DV, and what color spring, and how much psi are you pushing, what mods have you done?

 

what color spring and boost level?

 

stratmosphere hyperboost all i have to say

 

i think your in love with that damn company.....my forge 007 works great and i've never had a problem with it yellow spring 20-21 psi

 

been thinking that for awhile now. Talk about loyalty

 

Which model of DV (we make over 140 different valves), what colour spring, how much boost, was it new or used, if used when was the last service performed?

Here is a break down of the springs and the suggested boost ranges:
Green 5-15
Yellow 15-23
Blue 23-30
Red 30+


If you are using the correct springs there are several other things to check, first check the connections on the car. Make sure all of the clamps are tight and that there are no tears in the hoses. After that check the valve itself, here are guides for two of the more popular valves:
http://www.forgemotorsport.com/media/valve_service(1).pdf
http://www.forgemotorsport.com/media/valve_service(2).pdf
If it turns out to be a diaphragm valve check for tears or punctures in the diaphragm.