+- STD (https://www.superturbodiesel.com/std)
+-- Forum: Tuning (https://www.superturbodiesel.com/std/forumdisplay.php?fid=6)
+--- Forum: Engine (https://www.superturbodiesel.com/std/forumdisplay.php?fid=7)
+--- Thread: Convert to pressure controlled Turbo (/showthread.php?tid=6998)
Convert to pressure controlled Turbo - Repetitio - 01-20-2016
Hi,
since with the evry mod on om605 and om606 electronic pump engines, there is no stable boost i thought to convert it to a pressure controlled internal wastegate. I thought of converting my garret gt20 from a "underpressure" from electronic (vacuum) controlled wastegate, to a pressure controlled one, that controls itself. I think this will help in performance. I wanted to know if anybody already did that to his turbo, wether to a kkk14 or a gt20, i think it should be the same.
Thanks already
RE: Convert to pressure controlled Turbo - Hario' - 01-20-2016
(01-20-2016, 06:03 AM)Repetitio Hi,
since with the evry mod on om605 and om606 electronic pump engines, there is no stable boost i thought to convert it to a pressure controlled internal wastegate. I thought of converting my garret gt20 from a "underpressure" from electronic (vacuum) controlled wastegate, to a pressure controlled one, that controls itself. I think this will help in performance. I wanted to know if anybody already did that to his turbo, wether to a kkk14 or a gt20, i think it should be the same.
Thanks already
I did that to KKK K14 from 606 and sold it to Tobulus before we used it.
Ask him for pics and info!
RE: Convert to pressure controlled Turbo - m1tch - 01-20-2016
You would just need to swap over the wastegates to a boost controlled one - its something I want to do on mine as well.
RE: Convert to pressure controlled Turbo - Hario' - 01-20-2016
The vacuum actuator has the mounting bracket built into it so you have to hacksaw off the vacuum bit and drill some mounting holes to fir your aftermarket pressure actuator
RE: Convert to pressure controlled Turbo - Repetitio - 01-20-2016
anyone got pictures of his convertion?
RE: Convert to pressure controlled Turbo - hooblah - 01-20-2016
It's not difficult, it involves replacing the actuator with another one.
RE: Convert to pressure controlled Turbo - m1tch - 01-21-2016
The issue is that its not really a standard sized actuator, I have a spare OEM turbo so might look to mod that bracket and attach a boost controlled actuator to it, in my W210 its going to be quite hard to change it though as its under the turbo but above the cross member and heat shield (typically!).
RE: Convert to pressure controlled Turbo - Hario' - 01-21-2016
(01-21-2016, 03:49 AM)m1tch The issue is that its not really a standard sized actuator, I have a spare OEM turbo so might look to mod that bracket and attach a boost controlled actuator to it, in my W210 its going to be quite hard to change it though as its under the turbo but above the cross member and heat shield (typically!).
Don't think it's possible to do in situ.
The vac actuator has to be carefully hack sawed off to just leave the bracket part behind, then re drilled to match the new actuator mount holes..
RE: Convert to pressure controlled Turbo - Repetitio - 01-22-2016
In fact an actuator is just a mainspinrg. Just imagine a Spring with the right force at the WG... would work too. I´ll try to build anything to my turbo and post the pictures asap as i got it working
RE: Convert to pressure controlled Turbo - Tobulus - 01-23-2016
(01-20-2016, 06:45 AM)Hario(01-20-2016, 06:03 AM)Repetitio Hi,
since with the evry mod on om605 and om606 electronic pump engines, there is no stable boost i thought to convert it to a pressure controlled internal wastegate. I thought of converting my garret gt20 from a "underpressure" from electronic (vacuum) controlled wastegate, to a pressure controlled one, that controls itself. I think this will help in performance. I wanted to know if anybody already did that to his turbo, wether to a kkk14 or a gt20, i think it should be the same.
Thanks already
I did that to KKK K14 from 606 and sold it to Tobulus before we used it.
Ask him for pics and info!
Hi,
Unforseen events forced me to mount that Turbo on a 606 in a w140. A direct connection from the wastegate to the intake manifoldl resulted in max 0.7bar boost (as you told me). I put a T into that connection and connected a 1.5m vacuum plastic line to it which I shortened bit by bit till I had 1.1 bar boost. That line is about 60cm long now.
RE: Convert to pressure controlled Turbo - Repetitio - 01-24-2016
ok, may you have pictures how the actuator is fitted to the turbo?
RE: Convert to pressure controlled Turbo - Repetitio - 01-27-2016
just did it today
i hacksawed another normal pressure actuator and fitted it to the turbo. 1 bar boost from 2-5k rpm, with evry 1,3. It feels much better than in stock condition. Will post a few pictures tomorrow.The boost pipe goes from the pressure actuator to the inlet manifold.
RE: Convert to pressure controlled Turbo - m1tch - 01-28-2016
(01-27-2016, 02:36 PM)Repetitio just did it today
The boost pipe goes from the pressure actuator to the inlet manifold.
Photos would be great, although saying that I am going to be upgrading to a GT45 turbo in a few months time lol.
RE: Convert to pressure controlled Turbo - Repetitio - 01-28-2016
I´ll make some pictures later when i get home. But it was very easy because the om605 turbo actuator is more or less a standart one i think. The other one from my china turbo fitted perfectly, was just to long
RE: Convert to pressure controlled Turbo - Jambo - 01-28-2016
This is what my pressure controlled wastegate looks like. I cut off the original bracket and made my own to fit.
RE: Convert to pressure controlled Turbo - 97e300 - 01-29-2016
Still not sure which actuator to get
RE: Convert to pressure controlled Turbo - Hario' - 01-29-2016
(01-29-2016, 02:12 AM)97e300 Still not sure which actuator to get
Stock boost is 19psi, so we got one from some random old SAAB because it was also 19psi (ish)
RE: Convert to pressure controlled Turbo - Repetitio - 01-31-2016
This one is a standart actuator i had liing around from mine china turbo. With evry the car is doing 1.3 bar. Feels very much better then this vacuum shi**.
I just hacksaw it like hario said, made a new thread and it fitted the same like the original one from the gt20.
http://www.bilder-upload.eu/show.php?file=fa78fa-1454242793.jpg
RE: Convert to pressure controlled Turbo - Hario' - 02-02-2016
Only down side is you get much worse mpg's because the ECU opens the wastegate when at cruise..
RE: Convert to pressure controlled Turbo - street_666 - 04-22-2016
hi
Everything looks great but what whit electric valve that controls vacuum turbo on w210?
https://www.unissense.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/i/m/image_Pressure-Regulator-for-Mercedes-Benz-313-316-413-Cdi-OEM-0005450427-0005450527.jpg
Where i should look for a pressure controlled one?
RE: Convert to pressure controlled Turbo - Hario' - 04-22-2016
(04-22-2016, 03:03 AM)street_666 hi
Everything looks great but what whit electric valve that controls vacuum turbo on w210?
https://www.unissense.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/i/m/image_Pressure-Regulator-for-Mercedes-Benz-313-316-413-Cdi-OEM-0005450427-0005450527.jpg
Where i should look for a pressure controlled one?
You can't. The ecu controls the vacuum with that actuator to the WG actuator. Control philosophy is completely different with pressure from turbo and ECU is not reprogrammable for it (easily).
Just got to run pressure WG to manifold reference. But then I think it will go into limp?
RE: Convert to pressure controlled Turbo - street_666 - 04-22-2016
Yes fu*king LIMP mode goes on.
Anyone have an idea how increase pressure, cause that valve opens WG in 80% of driving time.
One week ago i converted to normal WG and then car goes faster and holds pressure in all rpm, but then goes LIMP
RE: Convert to pressure controlled Turbo - Repetitio - 04-22-2016
hmm i changed to another actuator and let the electric valve how it was ... worked fine on my 250 TD
RE: Convert to pressure controlled Turbo - street_666 - 04-22-2016
Maybe on c 250 but on mine w210 om606 it dosent work.
RE: Convert to pressure controlled Turbo - seanyt - 04-23-2016
only a remap will stop it from going to limp its outside of it desired boost range,
you are correct though the stock ecu will only pull the waste-gate through vacuum beyond a set rpm and tps position.
This is done to save fuel economy and stop you running boost on the motorway all the time.
because its such a small turbo it will spool much sooner with a pressure waste-gate and keeping it shut until a set boost is made.
evry mod will give you additional fuelling upto a point then the ecu torque limiters will limit power when revving high regardless how agressive you have evry mod.
RE: Convert to pressure controlled Turbo - street_666 - 04-24-2016
I have done before a remap on a 1.8 golf whit obd2 .
How its look like on a w210? What i heed for it?
I don' have evry only 10k resistor on presure sensor.
RE: Convert to pressure controlled Turbo - starynovy - 04-24-2016
This old ECU is not flashable, so you need to take it apart, desolder two EPROM chips which are One-Time-Programming only. Therefore you also need to buy two chips which are electricaly identical to the ones originaly used, these can be UV EPROMs or Flash memories. Then you solder two 32pin sockets. For reading original memories you need some EPROM reader which will be used to program new memories also, and then of course some software of your choice to find maps and mod them. Super easy.
RE: Convert to pressure controlled Turbo - seanyt - 04-24-2016
The problem with the resistor mod on the map sensor is it raises the boost level, but the ecu only fuels for the boost level IT see's.
and this boost level WILL be lower than the actual boost level your seeing. So unless you do both, you get no gain. then you run into limp mode and idle problems.
generally a stage 1 remap +20% power does everybody and sets them up for further mods by just replacing the chips with more aggressive tunes based on there levels of mods.
any ecu i sell i send out remaps free of charge afterwards with the appropriate tool to swap the chips.
nobody likes paying for the same service over and over again.