STD Tuning Engine Boost actuator, and boost pressure?

Boost actuator, and boost pressure?

Boost actuator, and boost pressure?

 
  • 0 Vote(s) - 0 Average
 
MrHope
GT2256V

112
01-22-2015, 05:18 PM #1
i have removed the vaccum actuator and installed a boost controlled one, but i think it might be to strong,...

I have a 605 with 6mm 95cc dieselmeken pump and original garret turbo.

How much boost can the stock turbo deliver?
And what happens if the wastegate dosent open as is should?
This post was last modified: 01-24-2015, 01:39 PM by MrHope.

.
W460 300GD with om605 Turbo 6mm pump Build Thread!
W124 300D 1985 (daily driver)
MrHope
01-22-2015, 05:18 PM #1

i have removed the vaccum actuator and installed a boost controlled one, but i think it might be to strong,...

I have a 605 with 6mm 95cc dieselmeken pump and original garret turbo.

How much boost can the stock turbo deliver?
And what happens if the wastegate dosent open as is should?


.
W460 300GD with om605 Turbo 6mm pump Build Thread!
W124 300D 1985 (daily driver)

TurboTim
Holset

457
01-25-2015, 09:22 AM #2
You build more boost and life is good. May not be the best for the turbo and some of that air is useless but more air is better then less.

87 300SDL OM606 swapped HE351VE 722.633 swapped, Crower cams, KM valvesprings
76 300TD custom lots of stuff
06 Mercedes CL65 AMG 619 WHP, http://TurboTims.com
TurboTim
01-25-2015, 09:22 AM #2

You build more boost and life is good. May not be the best for the turbo and some of that air is useless but more air is better then less.


87 300SDL OM606 swapped HE351VE 722.633 swapped, Crower cams, KM valvesprings
76 300TD custom lots of stuff
06 Mercedes CL65 AMG 619 WHP, http://TurboTims.com

MrHope
GT2256V

112
01-25-2015, 12:26 PM #3
Im not so worried about the turbo, but if the engine is in danger if the wastegate dosent open?

.
W460 300GD with om605 Turbo 6mm pump Build Thread!
W124 300D 1985 (daily driver)
MrHope
01-25-2015, 12:26 PM #3

Im not so worried about the turbo, but if the engine is in danger if the wastegate dosent open?


.
W460 300GD with om605 Turbo 6mm pump Build Thread!
W124 300D 1985 (daily driver)

erx
w202 om606

323
01-25-2015, 02:56 PM #4
I tried once fully closed wastegate with original turbo on 606, few seconds full throttle on 3rd gear and turbine wheel exited through straight pipe, don´t try this at home. Smile You need boost gauge, original turbo runs well to 1,6 bar, this turbo is so small and can't do any harm to engine.
erx
01-25-2015, 02:56 PM #4

I tried once fully closed wastegate with original turbo on 606, few seconds full throttle on 3rd gear and turbine wheel exited through straight pipe, don´t try this at home. Smile You need boost gauge, original turbo runs well to 1,6 bar, this turbo is so small and can't do any harm to engine.

TurboTim
Holset

457
01-25-2015, 05:13 PM #5
More boost is not a problem for the vehicle at all and is actually better.

87 300SDL OM606 swapped HE351VE 722.633 swapped, Crower cams, KM valvesprings
76 300TD custom lots of stuff
06 Mercedes CL65 AMG 619 WHP, http://TurboTims.com
TurboTim
01-25-2015, 05:13 PM #5

More boost is not a problem for the vehicle at all and is actually better.


87 300SDL OM606 swapped HE351VE 722.633 swapped, Crower cams, KM valvesprings
76 300TD custom lots of stuff
06 Mercedes CL65 AMG 619 WHP, http://TurboTims.com

barrote
Superturbo

1,627
01-26-2015, 04:47 AM #6
hy there,
a vacumm actuador is a light device compared to a boost actuator, one operates under vaccum wich in a MB can be low as 500hectopascals/milibar, wich is -0.5 bar, most vac actuators operate on the 700millibar range -0.3bar.
the boost actuator is quite a strong device , normally there are several ratings. the most common is +1.2 bar, +1.2 bar is somehow 2/3rd of the pressure inside a tire. so is quite dificult to move it by hand, oposite to a vac actuator. besides the spring force u can identify them by the hose conection, vac is a straight pipe out , and press(boost) have some sort of L shaped tubing out. is always like this in the automotive industry.
despite it seems too strong it will operate according to F=m.a , wich a small press acting over a wide area will come ou multiplied by that area.
just test your press actuator , find out wich pressure it will operate and u ll be fine. as much as 1.5 BAR will do no harm to your engine, and if u close the waste gate with a strong spring, eliminating the actuator will result in prety much the same, cause when the Exaust Gas Pressure overcomes the force of the spring will cause the valve to open anyway.
regards.

FD,
Powered by tractor fuel
barrote
01-26-2015, 04:47 AM #6

hy there,
a vacumm actuador is a light device compared to a boost actuator, one operates under vaccum wich in a MB can be low as 500hectopascals/milibar, wich is -0.5 bar, most vac actuators operate on the 700millibar range -0.3bar.
the boost actuator is quite a strong device , normally there are several ratings. the most common is +1.2 bar, +1.2 bar is somehow 2/3rd of the pressure inside a tire. so is quite dificult to move it by hand, oposite to a vac actuator. besides the spring force u can identify them by the hose conection, vac is a straight pipe out , and press(boost) have some sort of L shaped tubing out. is always like this in the automotive industry.
despite it seems too strong it will operate according to F=m.a , wich a small press acting over a wide area will come ou multiplied by that area.
just test your press actuator , find out wich pressure it will operate and u ll be fine. as much as 1.5 BAR will do no harm to your engine, and if u close the waste gate with a strong spring, eliminating the actuator will result in prety much the same, cause when the Exaust Gas Pressure overcomes the force of the spring will cause the valve to open anyway.
regards.


FD,
Powered by tractor fuel

Hario'
C300TD Wagon (W202)

894
01-27-2015, 07:56 AM #7
Stock 605 boost is 19psi according to my eBay spectacular gauge.




Installed:

OM606/722.6, big IC, W220 brakes.
Planned:
DIY manifold, compound, 722.6 controller, built IP.
[i]Less rust.. 
[/i]
Hario'
01-27-2015, 07:56 AM #7

Stock 605 boost is 19psi according to my eBay spectacular gauge.





Installed:

OM606/722.6, big IC, W220 brakes.
Planned:
DIY manifold, compound, 722.6 controller, built IP.
[i]Less rust.. 
[/i]

barrote
Superturbo

1,627
01-27-2015, 09:00 AM #8
https://encrypted-tbn2.gstatic.com/image...49_7cdx4FA

FD,
Powered by tractor fuel
barrote
01-27-2015, 09:00 AM #8

https://encrypted-tbn2.gstatic.com/image...49_7cdx4FA


FD,
Powered by tractor fuel

 
  • 0 Vote(s) - 0 Average
Users browsing this thread:
 1 Guest(s)
Users browsing this thread:
 1 Guest(s)