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Topic: boost creeping (Read 1809 times) previous topic - next topic

boost creeping

Reply #16
Quote from: Chuck W;324606
Reading on the controller you have, which is just a spring/ball controller, your set-up is wrong.

Take a hose from the turbo outlet fitting (or your boost reference source) to the inlet of your controller.  Then run a hose from the other end of your controller to the WGA. Done.

No T's, no extra hoses.  It's a spring/ball actuator.  It holds closed until a certain pressure is reached, and then dumps it to the WGA, causing it to open.  It is not meant to be used as a bleed.


i tried this setup twice before, before and after my exhaust work. it over boosted on the lowest setting with 2 of my boost controllers. i think my actuator is sticking or something. it takes alot of air to even open it.
1987 turbo coupe 5speed: Boport stage 3 head/2.5 cam , Precision stage 3 50trim .63 turbo, Tial 38mm wastegate, Jangus gutted/ported intake manifolds, 60mm tb, Jangus open dumptube, Jangus 3" elbow, Perrin boost controller,Esslinger adjustable cam pulley, Esslinger small crank pulley, stinger FMI, RFL BOV, Spec stage 3 clutch, B&M short throw, 140 speedo, Walbo 255lph, BBK fpr, 3G alternator, ARP studs.  Be faster... :poke:

boost creeping

Reply #17
hey! i got it figured out!! i had to use a Y connector though. i ran one hose from the turbo and another from the intercooler to a Y connector, then i hooked that up to my boost controller then down to my actuator. i dont know why it takes so my air to work but im glad its done with now...
1987 turbo coupe 5speed: Boport stage 3 head/2.5 cam , Precision stage 3 50trim .63 turbo, Tial 38mm wastegate, Jangus gutted/ported intake manifolds, 60mm tb, Jangus open dumptube, Jangus 3" elbow, Perrin boost controller,Esslinger adjustable cam pulley, Esslinger small crank pulley, stinger FMI, RFL BOV, Spec stage 3 clutch, B&M short throw, 140 speedo, Walbo 255lph, BBK fpr, 3G alternator, ARP studs.  Be faster... :poke:

boost creeping

Reply #18
Chuck W, i have the instructions to it in my tool box, but i had to run it the way i did because it was the only way i could control the boost at that time. i followed the instruction and it got me no where so i had to do it my way after trying 6-8 other ways.
1987 turbo coupe 5speed: Boport stage 3 head/2.5 cam , Precision stage 3 50trim .63 turbo, Tial 38mm wastegate, Jangus gutted/ported intake manifolds, 60mm tb, Jangus open dumptube, Jangus 3" elbow, Perrin boost controller,Esslinger adjustable cam pulley, Esslinger small crank pulley, stinger FMI, RFL BOV, Spec stage 3 clutch, B&M short throw, 140 speedo, Walbo 255lph, BBK fpr, 3G alternator, ARP studs.  Be faster... :poke:

boost creeping

Reply #19
Where were you getting your boost source from before? Ideally the intake manifold or vacuum tree is best.
93 Festiva L, 193k miles, BP+T/G25MR swap, T3 50trim .48/.42, SRT FMIC, Capri electronics/Rocketchip, 2.5" exhaust
bests: ET 12.86, MPH 110.25, 1.92 short
02 Subaru Impreza WRX, 129k miles
97 Subaru Impreza Outback Sport, 236k miles

boost creeping

Reply #20
i got it from the nozzle on the turbo. i just added another line from the intercooler and it works!
1987 turbo coupe 5speed: Boport stage 3 head/2.5 cam , Precision stage 3 50trim .63 turbo, Tial 38mm wastegate, Jangus gutted/ported intake manifolds, 60mm tb, Jangus open dumptube, Jangus 3" elbow, Perrin boost controller,Esslinger adjustable cam pulley, Esslinger small crank pulley, stinger FMI, RFL BOV, Spec stage 3 clutch, B&M short throw, 140 speedo, Walbo 255lph, BBK fpr, 3G alternator, ARP studs.  Be faster... :poke:

 

boost creeping

Reply #21
..... i went past 4500 rpm today, it starts to creep there. its fine at 14psi from 3000 to 4500 but after that it starts creeping again.... its making me upset. it has to be my actuator. ive ran my other 2 boost controls and same thing happened.. well screw it. im buying a 50 trim precision turbo here in the next for months with a tial wastegate.... no more...

jangus, my 3 inch down pipe will be to my house next week from stinger, and i'll try (if i dont get called into work) getting it done next week after i get it welded up to the elbow and swap the elbows. so hopefully by next week i'll get the core shipped out to you. thanks for being patient
1987 turbo coupe 5speed: Boport stage 3 head/2.5 cam , Precision stage 3 50trim .63 turbo, Tial 38mm wastegate, Jangus gutted/ported intake manifolds, 60mm tb, Jangus open dumptube, Jangus 3" elbow, Perrin boost controller,Esslinger adjustable cam pulley, Esslinger small crank pulley, stinger FMI, RFL BOV, Spec stage 3 clutch, B&M short throw, 140 speedo, Walbo 255lph, BBK fpr, 3G alternator, ARP studs.  Be faster... :poke: