I was thinking of swapping a C36 motor into a 1987 190E 16 valve 5- speed. Is this a difficult swap? Would I be better off swapping for a 302 V8 or building up the stock motor? It currently has a trubo on it but it needs rings and the CIS injection needs to go to make the turbo work. I figured for the cost of proper engine management and repairing the existing motor I could put something else in it. I thought of just doing cams and euro high compression pistons without forced induction but I would really like more torque than the 2.3 can produce. Reliability and improved torque are my top priorities but it needs to have AC.

Seing the weight penalty of the 302,you would turn the car into something its not.
One of the advantages of the 16vlv is the complete package-Ie;handling and brakes.

If you´re already running a turbo...why shy away from it?
I for one am at least pushing power into tuned V8 territory with ease,and i´m still running the 2,3 16 vlv engine.
Low 11s in the quarter with a TRULY daily driven car WITH reliability,leaving engine pumping out 450hp+ somewhere.
You mean you need more power than that?
Sure..up the boost if need be.
Me,i´m currently at a mere 1,2 bars out of the 64mm late design compressor-that is i´m not even leaning at the turbo so far really.
CIS unit HAS to go tho..and it really shouldn´t have been on the car even when it left the factory.It´s a POS and always has been...overly complex and with spares priced such that you wonder if they´re delivered by courier from germany direct.
Nah..stand alone all the way.It´s worth every dayum foot of the trip gettin there.

If you know anything of these things...
Take a look at this,and you´ll understand why to keep the 16vlv instead of any domestic Furd...



Hell...i´ve seen BBC engines with worse flow than that,and they´re cast for cylinders almost twice as large.
Power...is as always within the head...

Racing-

I haven't the first clue what i'm looking at-could you give some explanation?

cheers,
dan rotigel

That pic up there is what´s know as a flow map.
Flow can to a large degree be traced to power-as power always is within the head.
350sh CFM out of the tine holes(keeping the air speed up)of the cossie will last a LOOOOOOOOOOONG way when tuning the little engine.
As in MEGA long way.
For instance,an average 8vlv engine would hardly muster 200cfm.

Back in the old days(since superseeded) it was a known "fact" that for each CFM you could retrieve 0,43hp-that kinda a "math" relationship is what the flow will tell you.

Thank you Racing for posting that flow chart, been looking for that information about the 2.3-16 head for a long time!

What about the lyft column, what does it mean? I believe the maximum lift for the cossie head is 9mm. And is that 28"H20 representing the air pressure used for the measurement?

A flow bench work in inches of water.
10"=1013.25mBar=760mmHg aso aso.
Normal pressure difference for flow work is EITHER 10 or 28 inches of water depression.

Left column is lift in mm.
To get mm from fractions divide by 25.4

No,the HEAD will flow vastly more than to 9mm of lift.
The OEM 2,3 cams tho are 9mm at the valve,and the 2,5 are 10mm.
IOW..for an NA engine..room for improvement by increasing compression and swaping for cams with more lift.
In all honesty..how many heads out there flow like that without really having been hit by a die grinder at the local head porter?
To my knowledge,and i´ve been into one or two over the last 25 yrs or so,none.

To make more sense of that chart.
Insug=intake
Avgas=exhaust
STD ventiler=stock valve sizes
Lyft=Lift
Område=Area(as in general area)


Förhållande mellan insug och avgas i % vid fullt lyft=Relationship between intake and exhaust in percent at full lift.

Förhållande mellan insug och avgas i % MV=Relationship between intake and exhaust in percent-average.

So is it ported or not? Just wondering why it says portad in the chart.

Not really ported.
Just has the casting flash removed.
Dunno if you´ve ever taken a look at a cossie head,but they´re fairly "raw".

Actually I have one sitting right next to me, but it's also a "smoothed" one. Don't know if it can be called ported either. Here's a pic of the inlet

Damn near fell out of my chair! This is a damn informative thread guys-anything you two can share about 16v heads/tuning/creation is more than welcome here!

cheers,
dan r.

Jesser.
That´s the stock "clean up".They all look like that down the bowl.
However..you see some of them cleaned up in a worse manner than others.
In fact,the entire casting is fairly raw.

Same thing.
If you look in the comb chamber,just where the chamber per se meets the squish area,you´ll notice a small ridge.
We discussed that ridge for quite some time at my shop-as in it´s intended function.
Didn´t really find any,so to minimize the risk of hotspots and detonation promotors i ground it flat.