W202 OM606 GT2359v+Pro52
W202 OM606 GT2359v+Pro52
(05-17-2018, 12:42 AM)atypicalguy(05-16-2018, 04:53 PM)erx(05-16-2018, 01:17 AM)atypicalguy Seems like the 2.65 is a good ratio!
Some questions if you do not mind:
1. Are you bypassing the small turbo entirely at high rpm, or is it still working?
2. how big is the small turbo compressor?
3. how big are the bypass wastegates?
4. What rpm does it spool?
5. Have you measured any backpressure?
You are spooling almost immediately in the last drag video. Looks great! Fantastic results.
1. At high rpm it is bypassed because it's so small compared to pro52.
2.
GT2359V - MB OM613, OM648,
Compressor
Inducer: 44.4mm
Exducer: 59.4mm
12 blades
55 trim
.51 A/R
Turbine
Inducer: 51.2mm
Exducer: 47mm
9 blades
3. 60mm
4. It spools instantly as you can see from video. If I hold brake and throttle it will spoolup and spin wheels almost instantly, even with 2.65 diff.
5. All the time, small turbo vgt is actuated by comparing boost and egp. At 3.5bar boost egp is 4.2bar.
Thank you for the detailed responses.
That is a nice back pressure ratio!
Do you control the 60mm wastegates with a solenoid valve, or with direct pressure? And do you use large turbo pressure to hold the gates closed a bit?
And are you using the Ole Fejer controller to control the vgt actuator? I suppose it can do the math comparing the boost and backpressure.
I never considered using EDC or vgt, but your setup shows what is possible in compound 606 builds now with aftermarket controllers. Very nice work.
(05-17-2018, 12:42 AM)atypicalguy(05-16-2018, 04:53 PM)erx(05-16-2018, 01:17 AM)atypicalguy Seems like the 2.65 is a good ratio!
Some questions if you do not mind:
1. Are you bypassing the small turbo entirely at high rpm, or is it still working?
2. how big is the small turbo compressor?
3. how big are the bypass wastegates?
4. What rpm does it spool?
5. Have you measured any backpressure?
You are spooling almost immediately in the last drag video. Looks great! Fantastic results.
1. At high rpm it is bypassed because it's so small compared to pro52.
2.
GT2359V - MB OM613, OM648,
Compressor
Inducer: 44.4mm
Exducer: 59.4mm
12 blades
55 trim
.51 A/R
Turbine
Inducer: 51.2mm
Exducer: 47mm
9 blades
3. 60mm
4. It spools instantly as you can see from video. If I hold brake and throttle it will spoolup and spin wheels almost instantly, even with 2.65 diff.
5. All the time, small turbo vgt is actuated by comparing boost and egp. At 3.5bar boost egp is 4.2bar.
Thank you for the detailed responses.
That is a nice back pressure ratio!
Do you control the 60mm wastegates with a solenoid valve, or with direct pressure? And do you use large turbo pressure to hold the gates closed a bit?
And are you using the Ole Fejer controller to control the vgt actuator? I suppose it can do the math comparing the boost and backpressure.
I never considered using EDC or vgt, but your setup shows what is possible in compound 606 builds now with aftermarket controllers. Very nice work.