Adjustable S/S Piston Forge Actuators

[Blu3R]

I have been speaking to Forge who have said they will be prepared to make their piston type actuators to fit the Garrett T25/T28 turbos. These are fitted to all GTOs, GTO3s, 3Rs & M400s and will be available fitted with the springs of your choice from their range.

Advantage of these?
Being stainless steel they'll not rot like the standard items. Being a piston type means they'll not fail because the diaphragm has let by, and being adjustable means instead of buying 0.5Bar or 0.7Bar when you want to upgrade, you just buy a pair of new springs and replace your existing. If you want to keep your car standard then they can be a fit and forget item.

Price?
Forge are willing to offer these as a pair for 2x £105.84, so £211.68 + VAT. This means you'll get the s/s version for the same price as the regular alloy items (that they don't actually make for this turbo, hence the requirement for the group buy) would be.

Lets make a list,

Blu3R


ETA: Will fit M400 also!

Edited by Blu3R on Wednesday 23 March 11:38

[Rob_W]

If they will do T28s I would be interested.

[hollowpockets]

I just last week upgraded to .7 bar actuators from universal otherwise I'd have gone for these. Bummer. I have standard .5 items sitting doing nothing if anyone wants them let me know.

G

[Blu3R]

Rob_W said:

If they will do T28s I would be interested.

I think they're the same fitment but hopefully someone can confirm that.

[Rob_W]

Blu3R said:

I think they're the same fitment but hopefully someone can confirm that.

I'm sure one of the turbo gurus will be along shortly

[Gadgeroonie]

Do you mean actuator or dump valve?

[Blu3R]

Actuator

Like this:

But obviously to suit our application.

Edited by Blu3R on Tuesday 22 March 19:22

[Maark]

I am interested in upgrading to the .7 actuators and these would be just the job.

Out of interest would the new actuators need a remap to start with or would they be ok on current map and just give the potential for more power later?

Many Thanks
Mark

[Blu3R]

You can specify the 5 psi spring which is the same as standard so these can be fitted to a standard car without any other modification (other than cutting/drilling the old actuators off the brackets as you would have to if you replaced them for any reason).

[Blu3R]

I have just had confirmation from Universal Turbos that the actuator is the same for the T25 & T28 so these Forge actuators are available to fit all of our cars - GTO through to M400.

[joust]

How quick can you get them? Given the stupid intermittent boost levels I got at the weekend I'm guessing one or two of mine are shagged. Moley will confirm it hopefully tomorrow so would need them ASAP.

J

[mr2turbo300]

Maark said:

I am interested in upgrading to the .7 actuators and these would be just the job.

Out of interest would the new actuators need a remap to start with or would they be ok on current map and just give the potential for more power later?

Many Thanks
Mark

• Warning might not know what I'm talking about, but at least somebody who does can make sure this doesn't get missed*

I have (well did have) one of these (not piston but Diaphram type) on my MR2, and depending how much you pretensioned the spring by shortening or lengthening the rod you got very different boast pressures.
The difference was noticable when I got it set up properly, but personally I would not just bolt one (well 2) of these on without having an accurate boost guage plumbed into the system or better still it on a RR.
Might be different with the piston type, Can somebody who knows clarify for the forum ? (BTW I have a brand new one for a MR2 sat in the garage if anybody was interested).

[Blu3R]

Its good advice but nothing specific to this type of valve. All actuators can be massively varied by how much pretension you apply to the spring which is why you should always carefully measure the length from valve to centre of turnbuckle hole and replicate that with whatever new valve you fit.

Years ago a simple upgrade to my RS Turbo was to pull the circlip, wind in the turnbuckle a couple of turns and whack it back together. Job done. Extra 4psi thank you very much! (It didn't last very long mind you).

[Blu3R]

Wow, the quality is superb! Now to add these to the list of things to refit to the car!

[Rob_W]

Hi
So what happened to the group buy thing, was the response too low.
Rob

[Blu3R]

I'm afraid so, I needed some quickly and there wasn't any more interest so I just had Forge make me a pair of 1 offs. They do have another pair made up that you can spec with your choice of springs but you will need turnbuckles too as Forge use a different rod thread to what you'll currently have.