which actuator?

[adamescortcosworth]

What actuator for t34 with .63 housing? I've got a Collins actuator at the mo but its weak so need to replace it I was thinking of a -34 ?

[Adamski]

-31

[adamescortcosworth]

-31

Do you know why? Or what's the differenc between them?

[grcossie]

What boost are you running?

[adamescortcosworth]

What boost are you running?

1.7 bar mate

[grcossie]

If you are using a 34 acuator, then it dosen`t drop boost from your peak as much as 31. 34 is better to hold stabil boost. The spring inside it, is harder

[adamescortcosworth]

If you are using a 34 acuator, then it dosen`t drop boost from your peak as much as 31. 34 is better to hold stabil boost. The spring inside it, is harder

So you recommend a 34 then?

[grcossie]

I`m not an expert, but yes i would go for 34. Have used both types on my t34 whit cutback, 360bearing and 48exhaust

[jimcallear]

I have fitted a Collins -34 actuator and my boost on the way to Donna was all over the place so I'm going to refit a garrett -31 back on as it was fine with the old one

[Adamski]

When I was using my t34 mark shead recommended I use a - 31 I did and never had issues hence my post.