Engine/Transmission (1994 - 1998) TST Boost elbow adjustment

[JGrover]

Ive had my tst#10 with elbow in for a week now.

Still havnt really mashed the pedal yet. But do pull big high speed hills.

1/2 throttle was getting 42 psi boost

Now ive installed my new 60/14 hybrid.

Turned the allen srew out 1 turn.

Grabbed 2/3 throttle in 4th uphill again.

Hit 45psi boost Thought the bigger wheel would boost less

Do these elbows really adjust?

Or is it just safer to ajust my wastegate?

Im 35lbs of boost is a good safe number for the head gasket.

And the 60/14 hybrid should be working good, And be happy at 35 psi?

 

[Devan Manis]

thats an hx 40 wheel right? i would keep it under 40psi, not only because the wheel could explode, but the drive pressure with the small 14 housing will be high i would keep it 35-38. Ohh and the tst adjustable boost elbow does work. it works well on a ps62. it just limmits the ammount of boost the wategate see's.

 

[JGrover]

I want to get my boost down to 34/35psi. That should run very clean.

Im guessing turning it out should lower boost. Then again turning it in would cut airflow to the wastegate. Tst said dont mess with it. So theres no imfo on adjusting it.

 

[Devan Manis]

yes out lowers boost. this is the elbow with an allen head right?

 

[JGrover]

Thanks Devan

Yep! Has the allen screw

Really ****** at tst

I had emailed them. They said there tech guy is the only one to calibrate it. I should put my stock elbow on.

Any guess on how many psi each turn out on allen screw drops boost?