Controlling boost. SPRING vs. RELIEF VAVLE

[1QWIK6]

I run my turbo outlet hose right to the actuator. This causes boost spike and slow spoolup. I know a Relief valve could correct this, but wont a (small carb) spring on the wastgate puck correct this too?

 

[Fred 86 GN]

If the control is so bad, why don't you run the tubing like everyone else does?

Use the solenoid -or-

use a bleeder valve -or-

set it up "tuner style" which works for some and not for others.

 

[Steve Wood]

Tuner style is what he is doing, I believe. I always have found the best control by that method. But....if you shorten the rod too much, it can cause a little creep. It seems worse when using the stock actuator. The answer there is to add a bleeder.

As for as the spool up, this method should be as fast as any method. However, just like the stock solenoid control, boost is applied to the actuator from the beginning and it may begin to open before the desired boost is reached. A relief valve can be used to keep boost off the actuator until some point when it blows open the relief valve and goes on to the actuator.

A spring adds to the wastegate tension and should be similar to shortening the rod unless the rod is already cranked all the way down.

 

[1QWIK6]

Thanks for the info Steve. You always seem to have the right insight/advice.

Curt

 

[Steve Wood]

I bat about .200 most of the time....

 

[WFO]

Originally posted by Steve Wood
.

As for as the spool up, this method should be as fast as any method. However, just like the stock solenoid control, boost is applied to the actuator from the beginning and it may begin to open before the desired boost is reached. A relief valve can be used to keep boost off the actuator until some point when it blows open the relief valve and goes on to the actuator.

hey teve,is there any reason why you couldn't run a check valve(with a 15 psi cracking pressure)before the bleeder valve?so the bleeder wouldn't see any pressure until 15 psi,then the check will crack open and allow the bleeder valve to do it's thing?

later,sean