To much boost...

[George C]

i always source my gates off the turbos, has never gave me an issue

i owuld however put a smaller spring in it

a 38mm can work but if not positioned correctly then its going to not control as needed. a Wastegate isnt something you should of skimped on to begin with however since you have it, find a smaller spring and go from there.

[sprayedenali]

youre absolutely sure that the vacuum/boost reference lines are routed properly to the gate?? something just doesnt seem right to me...

[musky02]

Is it alright to have the wastegate mounted to a flex coupler off the crossover, or should it be mounted directly to the crossover?

[musky02]

Well i removed spring so wastegate would open right away and still upwards of 15 pounds! does this mean i need a bigger gate than a 38?? How big should i go?

[George C]

are you saying with no spring in the gate [which means constantly open] your still over boosting? what is the postion of the gate? the gates exhaust is it routed back into downpipe or vented to atmosphere? if merged into DP is it on a angle or more of a 90*?

Well i removed spring so wastegate would open right away and still upwards of 15 pounds! does this mean i need a bigger gate than a 38?? How big should i go?

[sprayedenali]

could the gate be on backwards??

[musky02]

I have the gate mounted to a 4in flex coupler and its at about a 45 degree angle flowing with the exhaust. I have vented to atmosphere, and into DP and i get same results. Its a bone stock 6.0 with a turbosmart 38mm ultra gate, and a borg warner 76mm. Im gonna take the wastegate completly off tomarow and see if it still builds boost. I am running out of ideas.

[sprayedenali]

post some pics of how it all is right now

[EmmerichLSx]

Can you even hear it opening? It will be plenty noticeable when it opens.

[04chase]

yeah my trucks turbo setup was built by synergy , and was changed a bit by me as well as the tune and pretty much every thing else on the truck , ill be building my own turbo setup soon but not on this truck . im happy with it and its staying together and also looks better than 99% of the stuff i see, but thats not the point or the point of this thread but always seems to be brought up everytime i post .

it could be a bad angle of exhaust routing bypassing flow that should be going into the wastegate, or the one bank that isnt wastgated is making enough flow to keep the turbo spooling . that can work but isnt ideal in a setup id build.

pics will help a ton as most have said .

single and dual springs can be combined to make different pressures. in your case you need to find the source of the problem if you have a very weak spring in it now.