just opened up my tial 35mm WG..
it has this yellow spring inside...
so i go ahead a looked up the net, it shows me a chat saying SMALL yellow springs is for 4.35 psi.
but then it shows there is a BIG yellow spring that carries 13.5 psi?
how do i know if it is big or small..

 

More than likly you are going to need to bolt it on and go drive it to really find out where its going to be. Simply throttle the engine in a lower gear, say 2nd or 3rd and just keep a real close eye on your boost gauge and just back off if it starts to go over 10psi. I know it sounds scary but its really not that tough.

Most Tial 35/38mm and HP versions come with a .5 bar / 7.25 PSI Spring. If I remember correctly the spring should be green? The only time they ever put different springs in is if you ask them to. I'd call up the guy/manufactor who you got it from to see what the deal is.

Jeff

 

i was telling them to put in like some 6.xxpsi springs in it and it turns out yellow.
thankx anyway...
will try it when i am boosted finally

 

Just add springs until the whole assembly glows yellow :P