Sign in to follow this  
Followers 0
Richard

S42 Engine...

10 posts in this topic

I think your asking that if BMW ever sold a car here with an S42.

No.

John

Share this post


Link to post
Share on other sites

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

Share this post


Link to post
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

Share this post


Link to post
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

Share this post


Link to post
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

Share this post


Link to post
Share on other sites

I played that video and for some reason the neighborhood dogs came to my door. I hope the driver of that thing was wearing good ear protection. Wow. It is a fast car though.

Share this post


Link to post
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

Share this post


Link to post
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
Sign in to follow this  
Followers 0