adj actuator boost problem

[alan opel]

well lads ive an r33 turbo on my r32 runs perfect an .6 bar on the std r32 actuator, but i got an adjustable actuator fitted it at same length as original, boosted .6 fine, wound it in abit to get more wana run .8-.9 but it still only running .6? im very confused now! checked the vacum pipe going to actuator and its fine?

[nikkisixx69]

coilpacks alan, defo the coilpacks

[tweek]

Is it the standard line that came on the car that is plumbed in to the actuator?if so check it for a restrictor if not check your gaskets for leaks and your pipe work for leaks.you still over fuelling?

[alan opel]

Is it the standard line that came on the car that is plumbed in to the actuator?if so check it for a restrictor if not check your gaskets for leaks and your pipe work for leaks.you still over fuelling?

no the original just runs from the turbo straight to the actuator, but the r33 turbo has no take off, so its coming straight off the inlet manifold, it doesnt seem to bad now man, got a safc 2 so wana get the boost up b4 i get the a/f adjusted on that! have wideband and det packs ready to go!

[tweek]

Your actuator could be fecked or you might still have a boost leak causing the overfuelling.

[slithertooth]

Standard rb20 actuator on a r33 turbo should be running 12psi !! think it's a known upgrade for r33's and 34's, what elbow have you got on the turbo, just wondering if the wastegate flap is stuck or something??

[Cooldrft]

no the original just runs from the turbo straight to the actuator, but the r33 turbo has no take off, so its coming straight off the inlet manifold, it doesnt seem to bad now man, got a safc 2 so wana get the boost up b4 i get the a/f adjusted on that! have wideband and det packs ready to go!

You need to take a feed off before the throttle body.
How many turns did you wind it ?

[alan opel]

Standard rb20 actuator on a r33 turbo should be running 12psi !! think it's a known upgrade for r33's and 34's, what elbow have you got on the turbo, just wondering if the wastegate flap is stuck or something??

standard elbow! the turbo was spot on when i put it on few months back an hold .6 spot on!

You need to take a feed off before the throttle body.
How many turns did you wind it ?

why before throttle body? the same vacum is feeding my boost guage and it seems fine? about 4 turns! 1/4 of an inch!

[Cooldrft]

why before throttle body? the same vacum is feeding my boost guage and it seems fine? about 4 turns! 1/4 of an inch!

The pressure before the throttle body is higher than in the manifold, it's also more stable etc.
The manifold pressure is perfect for a boost gauge.

Keep shortening the threaded bar ,you mightn't have it short enough yet.
Needs a fair bit of pre-tension on it.