Mercedes-Benz M194 engine

{{Infobox automobile engine

| name = Mercedes-Benz M194

| image =

| manufacturer = Mercedes-Benz

| aka =

| production = 1952

| predecessor =

| successor =

| configuration = Straight-six engine

| displacement = {{convert|2996|cc|L|1|order=flip|abbr=on}}

| bore = 85.0 mm

| stroke = 88.0 mm

| block = Cast iron

| head = Aluminium alloy

| valvetrain = SOHC

| compression = 8:1

| supercharger =

| turbocharger =

| fuelsystem = 3 2-barrel Solex carburetors

| management =

| fueltype = Petrol

| oilsystem =

| coolingsystem =

| power =

| specpower =

| torque =

| length =

| width =

| height =

| diameter =

| weight =

}}

The M194 is a straight-six engine produced by Daimler-Benz in limited numbers for its 1952 W194 300SL racer.

Design

The M194 is based on the M186 engine from the then-new W186 300.{{Cite web|url=http://media.daimler.com/marsMediaSite/en/instance/ko/New-in-its-full-splendour-the-oldest-SL.xhtml?oid=9917166|title=New in its full splendour: the oldest SL {{!}} marsMediaSite|website=marsMediaSite|language=en-EN|access-date=2018-08-16}} It is a four-stroke engine with three Solex carburetors and two valves per cylinder.{{Cite web|url=https://mercedes-benz-publicarchive.com/marsClassic/instance/ko.xhtml?grp=INFOTYPE_RENNWAGEN.R_TECH_DATA.&oid=6855#toRelation|title=Mercedes-Benz 300 SL (W 194) racing sports car, 1952 {{!}} marsClassic|website=marsClassic|language=en-EN|access-date=2018-08-16}} The engine is titled 50 degrees to the left in order to reduce the height of the hood, and uses a dry sump lubrication system instead of an oil pan and reservoir.{{Cite magazine|url=https://www.wired.com/2014/08/one-of-historys-most-beautiful-cars-may-also-be-the-most-innovative/|title=One of History's Most Beautiful Cars May Also Be the Most Innovative|magazine=WIRED|access-date=2018-08-16|language=en-US}} It is also mounted behind the front axle for better weight distribution.{{Cite web|url=https://www.hemmings.com/magazine/hsx/2016/11/Legend---1956-Mercedes-Benz-300-SL/3750230.html|title=Legend - 1956 Mercedes-Benz 300 SL|website=www.hemmings.com|access-date=2018-08-16}} Only 10 M194 engines were made for the W194 300SL racer; the first three cars had around {{convert|170|kW|hp|0|abbr=on}}, while the remaining seven had around {{convert|180|kW|hp|0|abbr=on}}.{{Cite news|url=https://www.motortrend.com/news/12q3-1952-mercedes-benz-300sl-w194-00002/|title=1952 Mercedes-Benz 300SL W194 00002 - Motor Trend Classic|date=2013-01-09|work=Motor Trend|access-date=2018-08-16|language=en-US}}