Author Topic: Turbo ACTUATORS..and what is the differance  (Read 2898 times)

BladeGT

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Turbo ACTUATORS..and what is the differance
« on: 20:25, Sun 12 February 2006 »
Hi, i looked around and i have found that there are two tipes of actuators putted into the 1,4 Liter Turbo engins of Renault.. Mine is with two houses but  now i have one from Renault 11 1,4 turbo which is with only one.. What is the differance between them.. and which wil be better. I found that the T3 actuators  are more powerful or something...

The turbo actuator  with one house has only the power of the spring?

The turbo actuator with two houses is making a mix of the pressure of the exaust gasses and the pressure produced by the turbo to control the wastegate.

Exaust gasses + turbo pressure are hepling the spring to close faster and better the wastgate.. and at the same time the pressure of the turbo must open the wastegate at a specific moment. But when not having the second house  only the spring is holding the wastegate.

i'm realy mixed-up with all this information..so if anyone can understand me and help me it will be great:)

jure

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« Reply #1 on: 07:45, Mon 13 February 2006 »
Actuator with two outlets is std. one and with only one is for the cup mode. See for more information Acctuator Moding in Turbo Section.

Will get some info during the day. i'm little busy...

jure

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« Reply #2 on: 08:47, Mon 13 February 2006 »
T3 actator holds the turbo wastegate valve closed tighter and by doing that it prevents pressure flutter. So by keeping it more tighter helps build boost much quicker expeccialy on gear shifting.

BladeGT

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« Reply #3 on: 09:46, Mon 13 February 2006 »
So its better to use the one with one outlet with the cup mode circuit than the other.  :lol:  10x i'll try it and write about the results here:)

jure

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« Reply #4 on: 14:26, Mon 13 February 2006 »
Didn't try on mine but as the author of the article said: IT DEPENDS FROM CAR TO CAR. So, im staying on standard until I eventualy buy some of the aftermarket ones.

BladeGT

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« Reply #5 on: 16:28, Mon 13 February 2006 »
Here  there is no way of buying  a T3 actuator.. no specialized shops for this kind of hardware... i can only  choose from a catalogue and wait for 3 weeks and evetualy i receive the item i have to pay 30% of the price + the price..  :cry:  :cry:

jure

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« Reply #6 on: 16:36, Mon 13 February 2006 »
Same situation with me. But I dont give up :D  Already have some part from BB and i'm not stoping there.

Here in Croatia don't even know what is an actuator :lol:

BladeGT

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« Reply #7 on: 16:41, Mon 13 February 2006 »
Hehe.. i'm usually looking for parts from other cars.. turbines .. actuators. Now i found a T25 turbo and i'm thinking of getting his actuator but it looks exactly like mine with one outlet.

jure

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« Reply #8 on: 16:47, Mon 13 February 2006 »
Which if it isn't secret? Is it straight fit?

BladeGT

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« Reply #9 on: 19:03, Mon 13 February 2006 »
It's not a secret.. its a actuator from Nissan 200SX STOCK TURBO. The turbo won't fit without  changes.But this one is broken, so i can only take the actuator from it.

jure

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« Reply #10 on: 09:47, Mon 20 February 2006 »
That is even harder to find than good one from GTT. I know cases where some guys fitted Nissan's turbo but max boost was produced way far over the std. 3500 so it's not really worth it.

Have you fitted it yet? Any modification?

BladeGT

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« Reply #11 on: 09:53, Mon 20 February 2006 »
Still no.. i' waiting for an answer from this guy... so you are telling me that the actuator from nissans stock turbo is better than the atuator of the Fives

jure

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« Reply #12 on: 12:34, Mon 20 February 2006 »
Just know that nissan has T25, so the actuator is larger. Larger = Better

BladeGT

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« Reply #13 on: 18:08, Mon 20 February 2006 »
But i'm not sure it's bigger it looks the same..maybe if i see it not on picture there will be any differance.

jure

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« Reply #14 on: 09:48, Wed 22 February 2006 »
It's about the string inside. It keeps wastegate closed tighter. But send the picture anyway. Really want to see how it look :wink: