Boost controller Or Spring
 

Which is better? Using a manual boost controller to help with the wastegate or just using a spring instead of the
wastegate?

Nick

Re:Boost controller Or Spring
 

Boost controller I would say. Jeff would have more experience, but I would say use a boost controller. Are you trying to lower your boost? A boost controller can only raise it.

Re:Boost controller Or Spring
 

I'm trying to get boost faster.

Nick

Re:Boost controller Or Spring
 

a spring will slow down spool time a lot

Re:Boost controller Or Spring
 

Ok i'm confused. What is good about using a spring them?

Nick

Re:Boost controller Or Spring
 

using a spring as an actuator has no advantages...just temporary until you get a real actuator at the psi you want

Re:Boost controller Or Spring
 

Springs do spool faster, its proven, we have tested a DSM wastegate actuator vs spring, and had about a 1000rpm sooner spool time. But springs can be a bitch to adjust, and will vary under types of loads. I only recommend the spring job unless you dont want to boost as high as your wastegate is set, or your wastegate is having clearence issues with your engine/cross member etc.

Jeff

Re:Boost controller Or Spring
 

i guess my spring setup just blew ass then....must have been too loose since it slowed spoolup a little

Re:Boost controller Or Spring
 

Like I said.. that was just with the DSM wastegate.... other setups proved to work just fine either way. I really hate dsm wastegates..

:P

Re:Boost controller Or Spring
 

So its not better than my greddy wastegate? Just dsm wastegates? I'm getting full boost around 3500, but I want to lower it. I guess I should go with a boost controller right?

Nick

Re:Boost controller Or Spring
 

greddy wastegate?...a boost controller shouldnt have any effect on the spool time unless its opening a little early....try it, who knows, as long as you can handle the extra boost...try seeing if the actuator is holding the wastegate all the way shut you might want to adjust it