I thought it would have made the acceleration seem faster with a quicker response and hopefully a tiny bit reduced turbo lag but no word of a lie, I have gotten a bigger benefit/placebo from using vpower nitro over this
So advice is to take the shims out or is that pointless coz there will be 0 difference?
Edit - now I know why I need to take out the two shims!
If you are finding that the valve is dumping more than required or you are loosing boost pressure it is normally an indication that a stronger spring is required. Conversely if the valve is failing to dump it may be necessary to install a weaker spring. If during this tuning of your valve you are faced for example with the red spring being to strong and the blue spring to weak, you can add the spacers to the blue spring to increase the tension by small increments, thus achieving a setting between the red and blue springs.
Valve Spring color coding
Green - 5-15 PSI
Yellow - 15-23 PSI
Blue - 23-30 PSI
Red - 30 + PSI
The above figures are estimates only and should only be considered as a guideline
Will give a try - Anyway to view what PSI im outputting?
