tuikku

.
You have there the older version of 320cdi - 1350bar.
To have the real power, you need more rail pressure.
That, orig pump is not capable of that.
Sorry to say, but two vnt-chargers do not give you any benefit.
Only a lot of troubles - you need a very good programmer (friend) to have them work properly.
Low rev diesel and long manifold ... ?
You need so much boost, that I don´t really believe, that even two small vnt´s can do it.

I have same kind of tech in my own car.
I'll trust in big holset and as short manifold, that is possible to build.
1600bar/140mm^3
Works very well, all the time - too much power me to handle with this old crap.

diesel2fast4u

Hi Tuikku,

We are using CP3 from 400CDI & 1800 bar, if this isn't big enough I'll go for CP3 from a duramax

the length of the manifold is 108 mm for the middle cilinder, 117 outside.
It's him who gave ideas for the exhaust.

Thanks for the help

diesel2fast4u

tuikku, you would prefer this one?

tuikku

.
Yes, but it is only my opinion.
This is yours project - you do as you like, do not listen to me too much.
I wish you all the luck.

diesel2fast4u

I will build them both & test on the dyno

diesel2fast4u

it always looks easy ...

diesel2fast4u

manifold welding after alot of cutting

diesel2fast4u

Senders
Map
2 x EGT
2 x EMP
Lambda



Back turbo manifold

diesel2fast4u

Started the intake manifold, EGR :s
Cut the original manifold & took out the swirl valves

diesel2fast4u

I am not quitting my day job, but getting the hang of it

delviacv2

That is just beautiful!!!

diesel2fast4u

intercooler design

diesel2fast4u

have some nice info on cdi injectors

1350bar Standard OM 613 injectors tested at 1600bar:

2000 injections 1100 ms = 117gr

With AMG nozzle at 1600 bar:

2000 injections 1100 ms = 204gr

diesel2fast4u

intake

diesel2fast4u

new vs old high pressure pump

tuikku

You have still there orig railpressure-sensors ...
They won´t be enough to 1600bar.

With 1,5ms/1350bar, orig injectors gives ~90mm3
and AMG,s ~110mm^3, measured by Robert Boch co.
And Bosio power+ nozzle with real AMG body ~120mm^3.

To 1000nm torq you need ~155mm^3 to max torq area and for 400hp at least ~125mm^3 to max power area /4200rpm).
Boost between 2,3-2,5bar.

I have now measured 800nm/350hp with single Holset 35, propably more, but transmission do not stand that and slips uncontrolled.

diesel2fast4u

did some work today



Cut the intercoolers (thanks Joe)



Core



Welded :



Intake ready for welding :



Turbo mock up

gaiex

I need some pop-corn!

This is the best thread on MBworld!

Congratulations on the brave effort to get more power out from your MB diesel engine, not a lot of people doing that!!!

LOB

X 2

now I'm stuck to this thread.... please keep the good work and keep posting...

zemun1234

X3 ...I hope you are writing down all measurement and you can perform much faster (and chipper) on other car

gaiex

An offtopic question:

How do you guys read/see the injection quantity?

I have a ELM interface but the injection PID it's not available! In DAS it's possible to do some logs or something like that?

Thanks

diesel2fast4u

Don't know what you mean exactly but the injectors have their own map.

gaiex

After doing the injection remap, you don't make some data reading (logs) while driving, to confirm the final result?
I do some logs to fine tuning the maps and etc. with a ELM327 interface and PCMSCAN software, but in my OM642 ECU the "PID" for injection quantity is not read by the ELM327, but other like Lambda, Map, Maf, Exaust temp, etc are all there!

diesel2fast4u

We don't do a remap, I have a stand alone computer, so it's a new map that will be done on the dyno. The injection quantity depends of have many injections/Cycle , injection time, fuel pressure & nozzle used. That's why we need an injector map each time we change nozzle's.

I'll ask my computer guy, I am more hardware

gaiex

Ok, that's it, remap or new map if you want to measure the injection quantity to check the parameters you changed/add on the map what do you do?
After changing injection time and cycle for example, if a measure could be done it's a good thing

Any alternative to the ELM327 interface?
Where in Star DAS we can do some logs or check the real values? (DAS and real values have some lag!)
With Vagcom on TDI engines we can do a lot of logs and check all the parameters...