Jump to content
  • When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

S42 Engine...


Richard

Recommended Posts

Try that search over on Bummerforums-

in the E36 section, there's a pretty good description

of how and what the S42 was.

the short version is that it's not a production engine,

it was a one- off for racing (touring cars)

to meet the 2L limit in the 90's.

Apparently rarer than an M12, from what I remember.

I read about it in an old BTCC book, and got excited... for about 15 minutes.

http://forums.bimmerforums.com/forum/showthread.php?t=162133&highlight=S42

hth

t

"I learn best through painful, expensive experience, so I feel like I've gotten my money's worth." MattL

Link to comment
Share on other sites

The S42 came in different versions, here is some data on the 8/1995 evolution.

Bore / Stroke: 86,5mm / 85mm

Displacement: 1998ccm

Compression ratio:12.4

Rod length: 145mm

Intake cam degree / spread: 312 / 94

Exhaust cam degree / spread: 304 / 98

Intake valve diameter: 35mm

Exhaust valve diameter: 35mm

Intake dimensions: 52mm wide / 29.7mm height / 14.85mm radius

Slide throttle diameter: 46mm

Carbon airbox

Exhaust manifold: 4-2

Engine management: ecu4a.1

Performance: (DIN 70020)

285hp at 8300rpm

245nm at 7000rpm

max rpm: 8500rpm

Petrol quality: Super plus ROZ 98

bmw_cecotto1.jpg

S42B20

S42B20 BMW Motorsport EngineA racing version of the M42 Engine, called the S42 is known. It was used in BMW's 320 4-door touring car, participating in the German racing series called STW (Super Tourenwagen Cup). It differed by having individual throttle bodies (ITB) for each cylinder and its capacity was enlarged to 1999 cc. It had eight fuel injectors instead of the standard four. Valve cover and airbox were entirely made of carbon fiber. Lubrication was provided by a dry sump system. Compression ratio was increased and a lightweight head was installed.

Horsepower evolution steps of the S42 Engine:

Year 1995 1996 1997

300 hp 308 hp 315 hp

In the last evolution step the engine puts out an amazing 158 hp/L. Compared to a modern racing engine it was a big achievement.

bmw20310.jpg

bmw_318_compact_delage_sport_20_m.jpg

'86 R65 650cc #6128390 22,000m
'64 R27 250cc #383851 18,000m
'11 FORD Transit #T058971 28,000m "Truckette"
'13 500 ABARTH #DT600282 6,666m "TAZIO"

Link to comment
Share on other sites

Performance: (DIN 70020)

285hp at 8300rpm

245nm at 7000rpm

Horsepower evolution steps of the S42 Engine:

Year 1995 1996 1997

300 hp 308 hp 315 hp

In the last evolution step the engine puts out an amazing 158 hp/L. Compared to a modern racing engine it was a big achievement.

bmw_318_compact_delage_sport_20_m.jpg

WOW!!!

John

Fresh squeezed horseshoes and hand grenades

1665778

 

Link to comment
Share on other sites

guess we wont find any of these in our bone yards

25935817045fccd1d9a7b.jpg

and turn up the volume and ride along with screaming

S42 power at bike track ASSEN Holand

this is one F A S T E36 - listen to the ultra close ratio gearbox work

and slice through the field

and watch/listen how it is to drive off with a

light weight race clutch - proves it's not for street use

DSC00188.jpg

'86 R65 650cc #6128390 22,000m
'64 R27 250cc #383851 18,000m
'11 FORD Transit #T058971 28,000m "Truckette"
'13 500 ABARTH #DT600282 6,666m "TAZIO"

Link to comment
Share on other sites

holy cats- is that active suspension in there? Those braces are...

fantastic.

Makes you realize what a bunch of pointless car porn

cross braces are if real race development does it that way...

t

"I learn best through painful, expensive experience, so I feel like I've gotten my money's worth." MattL

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • BMW Neue Klasse - a birth of a Sports Sedan

    BMW Neue Klasse - a birth of a Sports Sedan

    Unveiling of the Neue Klasse Unveiled in 1961, BMW 1500 sedan was a revolutionary concept at the outset of the '60s. No tail fins or chrome fountains. Instead, what you got was understated and elegant, in a modern sense, exciting to drive as nearly any sports car, and yet still comfortable for four.   The elegant little sedan was an instant sensation. In the 1500, BMW not only found the long-term solution to its dire business straits but, more importantly, created an entirely new
    History of the BMW 2002 and the 02 Series

    History of the BMW 2002 and the 02 Series

    In 1966, BMW was practically unknown in the US unless you were a touring motorcycle enthusiast or had seen an Isetta given away on a quiz show.  BMW’s sales in the US that year were just 1253 cars.  Then BMW 1600-2 came to America’s shores, tripling US sales to 4564 the following year, boosted by favorable articles in the Buff Books. Car and Driver called it “the best $2500 sedan anywhere.”  Road & Track’s road test was equally enthusiastic.  Then, BMW took a cue from American manufacturers,
    The BMW 2002 Production Run

    The BMW 2002 Production Run

    BMW 02 series are like the original Volkswagen Beetles in one way (besides both being German classic cars)—throughout their long production, they all essentially look alike—at least to the uninitiated:  small, boxy, rear-wheel drive, two-door sedan.  Aficionados know better.   Not only were there three other body styles—none, unfortunately, exported to the US—but there were some significant visual and mechanical changes over their eleven-year production run.   I’ve extracted t
  • Upcoming Events

  • Supporting Vendors

×
×
  • Create New...