Well like I said I can do a supercharger with the Carb' or another carb in either draw thru or blow thru - EFI/TBI etc... are extra optional considerations.

They are far from being a requirement.

What I started posting to this thread about was to find out if anyone had done the supercharger or made progress, I read through the M104 Thread and can see what was done their - same kind of thing I would if I was going EFI.

See I might seriously do a LPG (propane) conversion - with the supercharger. That would give me a minimum of 110 octane (110-120) along with the carb/ So I would have a dual fuel vehicle. I could even setup up an a type of waste gate to actually reduce the max boost when on gasoline and allow more when on propane...

My cost to convert to LPG on a carb setup is about 350.00 thats mixer, regulator, hoses and Fork Lift Size tank.

But regardless of the fuel - Setting up the Supercharger will be a simple matter of mounts and Belt arrangement and I have a way to simplify that.

Anyway - thats all easy stuff. I wanted to find out what someone else has done. If anyone else has done something with the M110.

I really would love to know more about how well the M110 handles boost in stock trim....

well what i know is that the head isn't well cooled, so i heard, that the head is noisy cause it hasn't got that many water runers as say in m103.

mind u i can be wrong. i have a 1981 280CE EURO spec, and the pistons on this one are scary, but us spec has flat pistos and if that one has the same head it should be able to take some boost, as the chamber in the head is deep.

__________________
Jay,
-----------------
-1995 Blue W202 C36 AMG (M) SOLD ;(
-1995 Black W140 S500 (Lady)
-1992 Black W124 E300 (Dima) (Ex-Mosselman
Twin turbo Kit).
-1988 Black W124 300 E 4-Matic.(Nadeen)
-1983 Brown W126 500SEL.(Old Lady)(Sold)
-1981 Gold W123 280CE.(Dareen)(Sold)
http://www.youtube.com/user/jayrasheed

Thanks for the tip, yea the non-euro pistons and all that should be good for a fair amount of boost.

I am excited this coming weekend I will officially start tinkering with the current motor to see what I can figure out and make a final decision about the motor swap.

Hi

I am currently overhauling an M110 cylinder head that did 100 000 km on LPG pulling a trailer. The LPG makes the engine run very hot and the valves seats are now toast (receeded valves) ! If you want high octane use ethanol to run cooler!

Applicable to supercharging is the port job I have done : open up the exhaust side slightly and polish it. Smooth off the ridges just under all the valve seats going into the port. The stock intake ports are small to maintain high charge velocity and provide good torque at the bottom end so making them much larger is not a good idea for a NA engine and probably not either for a blown engine.

Who says you need an intercooler ?

Intercoolers are needed for turbos (heat transfer from exhaust side). If you run 10psi or less of boost you dont need intercooling.

Stock cams provide no overlap which is great for kompressor engines.


Are you looking into an Eaton M45 per chance ? It looks like the right ticket for this engine.

The downside to all this is that at 10 psi you cant expect much more than 230-240 hp

Good luck and keep posting

Denis

Lion sur Mer
France

K so the stock cams offer no overlap, you can easily adjust this since its a dohc, any way, In NA form how would the no overlap work out to??? ie more top end or more torque???

i have this engine ina 280CE and i retarded both cams 4 degrs each which resulted in gr8 topend power above 5000RPMs but no low down what so ever, whats your say on that.

and with 10 psi i would expect more than 240 hp but i wmight be very wrong, my m103 300 w124 has abt 10 psi boost and it is well over the 240 hp mark and i can even claim its a tad over 300 hp. but thats a diff engine.

__________________
Jay,
-----------------
-1995 Blue W202 C36 AMG (M) SOLD ;(
-1995 Black W140 S500 (Lady)
-1992 Black W124 E300 (Dima) (Ex-Mosselman
Twin turbo Kit).
-1988 Black W124 300 E 4-Matic.(Nadeen)
-1983 Brown W126 500SEL.(Old Lady)(Sold)
-1981 Gold W123 280CE.(Dareen)(Sold)
http://www.youtube.com/user/jayrasheed

Hi,

I think that the factory wanted a torquey engine to move heavy cars. The cams are moderate lift and short duration, so short in fact that the "overlap" period, useful for high rpm power is absent.

In a blown engine, you want this to avoid the boost from moving part of the charge right out the exhaust . Estimating best power is fairly easy. Multiply the NA power by a factor that includes boost. One bar doubles power, one half provides 50% more, etc. This is theoretical so unless you do a great job you will get less...

A NA M110 with low compression US pistons and some prep might make 140 DIN hp; at 10 psi that makes about 140x1.68 or 235 DIN hp or whatever bigger US "bull****" horsepower say 250 ?

However, this also shows that a small change in boost close to one bar makes a real power change.

Another point on the head is that it has very limited water passages and cools by its mass (ā la motorcycle). The side effect is that glorious roar

Now if you build a real race engine with studs instead of bolts, polished, deburred head, etc, I think that running 1.5 bar with a good stock bottm end is possible with an aftermarket FI.

Cheers

Denis

Lion sur Mer
France

Well if 250 is all I can get, then so be it, I would hope that ends up being at the wheels...

For the money, does not seem like a head job or head swap would be worth it, money would be better spent elsewhere.

The M90 could with the right drive ratio yield up to 1 bar - but that pushing it and very close to the edge, lot of heat at that level even with porting.

Of course I could use a M112 and get less heat and better power.

Ultimately for more power I would swap out the MB motor for something that will respond to boost better.

Is their a head swap that might yield better results, just asking...

Here are some pix of a turbo M110 and an S/C M103, might give ideas,

__________________
Jay,
-----------------
-1995 Blue W202 C36 AMG (M) SOLD ;(
-1995 Black W140 S500 (Lady)
-1992 Black W124 E300 (Dima) (Ex-Mosselman
Twin turbo Kit).
-1988 Black W124 300 E 4-Matic.(Nadeen)
-1983 Brown W126 500SEL.(Old Lady)(Sold)
-1981 Gold W123 280CE.(Dareen)(Sold)
http://www.youtube.com/user/jayrasheed