BSTC help

[Alex L.]

I installed a Bstc boost controller onto my '86 T-Type recently. The car is all stock; no chip, no injectors, no nothing. I wired the controller into the car according to the schematics included with the controller. The controller is very pretty, but it does not do its job. The car boosts to 17psi and no higher no matter what I do with the controller.

I checked the voltage on the wastegate solenoid and it is getting power. I replaced my wastegate actuator with a sub-400 mile unit today and it still won't work right. With my new actuator, the boost gauge reads a tad over 10psi and no higher. It feels the same way it does with the gauge reads 17psi.

What am I doing wrong?

 

[salvageV6]

Try this test.

Key on, car OFF, pedal to the floor.

Controller for boost set to MAX all the way to the right.

Measure the voltage with it floored (2 person test most likely unless you have a good pile of bricks around), accross the two wastegate solenoid terminals.

Also you should hear it buzzing as you rotate the dial from low to high boost, key ON, engine OFF, flooring the car from the cockpit windows open.

Try both tests.

And what do you have the switches set to on the back?

 

[Alex L.]

The switches on the back are all off per the instructions. The solenoid buzzes up to a point as I rotate the dial and then nothing more. I think my solenoid may be bad after all.

 

[Alex L.]

Valve, Solenoid, 1/8 In - Solenoid Air Control Valves - Valves - Pneumatics & Hydraulics : Grainger Industrial Supply

FULL THROTTLE SPEED - Boost Solenoid Adaptor for Turbo Buick


Eh?

 

[Mike Licht]

If you have a stock non adjustable acturtor and stock solenoid that is about right. base pressure is about 12 and the solenoid can give you about 7 psi increase. dual noids will work or convert the atcuator to an adjustable and tighten it up a bit
Mike

 

[Alex L.]

I tightened my new actuator up and it will only go to 15. I'm going to tighten my old actuator, but do you think it's time for dual solenoids?

 

[Mike Licht]

It will go higher than that with a stock actuator and 1 noid so something is wrong, wither the noid is bad or the vac lines are connected wrong. Use the stock y connector and the the branch that goes off at a 45* angle goes to the actuator. This is assuming the noid buzzes when the the pedal is pressed
Mike

 

[Alex L.]

The T's in the right way. The solenoid buzzes to or a little bit past the middle (or fourth) dot on the adjustment knob then stops.

 

[salvageV6]

When it stops buzzing it's full on and open wide so that sounds normal.

Dual solenoids will help some, factory plastic wastegate air hose junction point and restrictor is a Y not a T.

 

[Alex L.]

When it stops buzzing it's full on and open wide so that sounds normal.

Dual solenoids will help some, factory plastic wastegate air hose junction point and restrictor is a Y not a T.

Y's what I meant. Would you recommend going with dual solenoids or a single solenoid like the one in the link I posted? If I read correctly, that one's good for 120psi.

 

[salvageV6]

I have dual solenoids and a H.D. actuator.

My range was 18 to 29 psi.

Only got about 6 psi. per solenoid.

I've never used a larger industrial solenoid for wastegate control if it works it should bleed off more air I would assume than even dual solenoids.

I now use the ISAC alky. controller for boost control but I used the BSTC for a long long time.

 

[Alex L.]

Could I run the Translator PRO solenoid without a Translator on the car? It seems like a better value than trying to find two stock solenoids to splice together.