What wastegate? You shouldn't be using the top fitting without a boost controller on a tial etc...

You want the side port..

 

yeah your right i dont know what i was thinking when i said that sorry but it is the side port and not the top.

 

i dont know but i still have the same problem... i checked all the couplers and pipes everythings hooked up

 

Is the wastegate used, if so buy a new spring. what size turbo are you using?

 

im using a t3/t4 turbo and the wastegate is used. but what is the point of buying a new spring if its not the spring thats causing it to over boost

 

is your welds holding up on the charge pipes check to see if there is no leaks in the welds.

 

ok my tial 38mm is used but i bought a new 10lbs spring so the spring isnt the problem, my welds are great i dont see any leaks tho... im stuck

 

so i put in a different spring to see if it was the spring and it wasnt. i lubed up my wastegate to its unstuck and i still have the problem of over boosting.

 

my problem was that the compressor wasnt giving good vacuum

 

anybody have any ideas of what it could be besides the wastegate stuck

 

bump

 

if you have boost spikes.. not just always being over boosted... thats usually an indication of a poorly designed manifold.

 

Do you have a boost gauge?

1) Hook the boost gauge up directly to the compressor and check the PSI levels right out of the compressor.

2) Hook the boost gauge up to the intake manifold so you can read the boost level at your throttle body... A .5 - 1 PSI drop is expected, anything over and you have a leak somewhere in the plumbing.

.....

Jesse @ Turbo Kits.com

 

i think i found out what it is. my wastegate never used to spin and and now it does i think its over boosting from that