Achieving 1.2 Bar on stock actuator and Greddy Profec 2 ?

[sliding-r]

i am having the car mapped on thursday but have just realised that the gain on the controller only goes to 100% does this mean i cant reach the desired 1.2bar that is wanted?

is the actutuator 0.5 Bar? if so that means can i only get 1.0 bar from the greddy at 100% gain.

will i be needing an uprated actuator arm in this case?

some help will be appreciated...

 

[Dazz0i]

No, not at all. Gain is the rate the boost is made. So boost is stronger, earlier.

 

[japmadlad]

you should get an uprated actuator anyway. stock won't hold 1.2bar without leaking

 

[sliding-r]

No, not at all. Gain is the rate the boost is made. So boost is stronger, earlier.

no your taking about set gain not gain, gain is what you gain % upwards from actuator pressure.

so 20% gain on a .50 bar actuator is 0.1 bar more of pressure. i jnow as i set it up..

hench the 100% on .50 bar actuator = 1BAR

i ran the car with the controller off a min ago and it boost to 0.58 then drops to 0.55 so it would prob reach 1.1... i may have to take the plunge and buy an uprated one

Any suggestions? was looking at the HKS from Sumo power.

 

[Darren_S15]

Set = desired boost level
Gain = sensitivity of valve control
Set Gain = when to start opening the waste gate

Assuming you have all the necessary mods you will be able to hit 1.2 bar

As Dazz0i said adjusting the gain changes the boost rate, so if you have the gain too high you could see boost spikes over your required boost level, in which case you would turn it down etc...

 

[sliding-r]

Set = desired boost level
Gain = sensitivity of valve control
Set Gain = when to start opening the waste gate

Assuming you have all the necessary mods you will be able to hit 1.2 bar

ok my mistake, so you think it possible without doing the actuator or is a neccesity? do you run a greddy on yours?

BY necessary mods you mean pump, FMIC and breathing mods.. yeah done mat!

 

[Darren_S15]

I know people that have the stock actuator and are running 1.2 bar + :thumbs:

Like japmadlad said you could get issues with the stock actuator not holding 1.2 bar.

Not definatly necessary mod, but if you can afford it do it

 

[sliding-r]

Thanks for that mate, i can afford one at the min but am wondering if its needed but i suppose there is nothing worse than having it mappped and it leakiing and holding boost when you spending al that money for nistune, roller time and mapping.

is it likley to hold the boost you think at least for the mapping session? and if it starts to leak after i will change!

 

[sliding-r]

I know people that have the stock actuator and are running 1.2 bar + :thumbs:

Like japmadlad said you could get issues with the stock actuator not holding 1.2 bar.

Not definatly necessary mod, but if you can afford it do it

yeah which controller are they using to reach more this.

the SET will only let you go 100% more than stock actuator pressure.. if im wrong please tell me how its done!

 

[Darren_S15]

Thanks for that mate, i can afford one at the min but am wondering if its needed but i suppose there is nothing worse than having it mappped and it leakiing and holding boost when you spending al that money for nistune, roller time and mapping.

is it likley to hold the boost you think at least for the mapping session? and if it starts to leak after i will change!

Im planning on using the standard actuator when I get mine mapped, and if it does not hold the boost properly Ill get a better one :nod:

yeah which controller are they using to reach more this.

The same as you the Greddy Profec B Spec II

the SET will only let you go 100% more than stock actuator pressure.. if im wrong please tell me how its done!

Im not an expert but I dont think its the % of the stock boost pressure the EBC is refering to, its just the % of what the EBC can do. The Profec B Spec II can be used up to 3 bar from what I remember, but Im not saying that 33% means 1 bar pressure either.

You should be able to hit 1.2 bar using that EBC.

 

[sliding-r]

Im not an expert but I dont think its the % of the stock boost pressure the EBC is refering to, its just the % of what the EBC can do. The Profec B Spec II can be used up to 3 bar from what I remember, but Im not saying that 33% means 1 bar pressure either.

You should be able to hit 1.2 bar using that EBC.

Sound, can you see my logic though as im SET at 49% atm and running 0.8Bar from this

if you get a uprated actuator the % will be differnt as the actuator strength is higher to start off with so if its a 0.8 actuator you only need another 50% GAIN to acquire the 1.2 BAR needed.

whereas with the stock one 100% GAIN will see 1.1 to 1.2 Bar i will call steve in the morning and have a chat..

 

[adz87kc]

I use a profec b spec II and run on 1.1bar using the stock actuator and its held up fine so far. However i have seen the unit display a tad over 18psi when using the peak boost feature.

 

[sliding-r]

I use a profec b spec II and run on 1.1bar using the stock actuator and its held up fine so far. However i have seen the unit display a tad over 18psi when using the peak boost feature.

what % is your GAIN set to at this?

 

[adz87kc]

what % is your GAIN set to at this?

I had steve set it up whilst he was mapping it so this may not work for you.

Data i have here is:

12% gain
set gain 120
warning 185
warning L. 10%

Hope it helps

 

[sliding-r]

I had steve set it up whilst he was mapping it so this may not work for you.

Data i have here is:

12% gain
set gain 120
warning 185
warning L. 10%

Hope it helps

SET? i mean sorry done it again lol

 

[adz87kc]

SET? i mean sorry done it again lol

Thats all the data i have just now buddy. I'd go double check but my car is off the road atm, profec isn't in the motor

 

[sliding-r]

ok thanks for your help anyways, is your car ok?


anyone else with a stock actuator and a Greddy Profec 2 running anymore than 1,1 bar...?

 

[Dazz0i]

i can't be bothered to read all this after a few pints, but i believe what has been said is that with an EBC you'll be able to make the 1.2 you desire.

but, it's kinda wise to mechanically make nearer the boost you want, then only make an ebc slightly increase the boost, or use it to stabilize the boost to required level.

personally, for the £100 quid it'll cost to change the actuator, i'd go down that route.

 

[sliding-r]

i can't be bothered to read all this after a few pints, but i believe what has been said is that with an EBC you'll be able to make the 1.2 you desire.

but, it's kinda wise to mechanically make nearer the boost you want, then only make an ebc slightly increase the boost, or use it to stabilize the boost to required level.

personally, for the £100 quid it'll cost to change the actuator, i'd go down that route.

Cool, will have a chat with my tuner in morning.

 

[DeanS15]

mate, i'm using a stock t28r actuator on a 2871r turbo and i've run 1.5 bar on it for a time with no problems - depending on how you set up the controller you can get it holding nicely, mine holds and then drops towards 1.4bar at redline. it was meant to be a temporary thing as the 2871 never came with an actuator, but its doing the job fine until i get a hks or forge adjustable.......