More adjustability from a HD actuator

[Mike T]

Couldn't adjust mine below 21 either until adding the spring. From your picture it looks like you may need to add a sleeve type shim between your thumb wheel nut and the spring to add more tension. Also the arm was adjusted to the longest length possible while still maintaining thread engagement.

I'll add a picture of mine tomorrow.

 

[Mike T]

 

[vacuum 6]

Yup got it thanks. I might use a longer spring. Current setup reduced by 1 psi.

 

[Mike T]

Ok I can confirm that it works at the track. Was able to keep an unported GTQ 70 with a HD accuator between 12/14 pounds 14 being just after the shift. Car only went 108 at that level but I hope to have all of my bases covered before turning it up.

 

[Mike T]

Check this out!! knew it was too simple of an idea not to have been thought of...

Publish date was like 2012

 

[1BUICKTtype]

does anybody know where i can get that exact spring? part number? Thanks

 

[vacuum 6]

I’ll post shortly what I purchased.

 

[vacuum 6]

Parts I used/modified. Not sure what washer however material is SS.

 

[BEATAV8]

Eeeenteresting

 

[1BUICKTtype]

Parts I used/modified. Not sure what washer however material is SS.

thanks! were you able to lower your boost more than 1 psi with that set-up or did you need a stronger/longer spring?

 

[vacuum 6]

Parts I used/modified. Not sure what washer however material is SS.

thanks! were you able to lower your boost more than 1 psi with that set-up or did you need a stronger/longer spring?

Yes use a longer stronger spring or add a spacer both works. McMaster sells it all.