The S42 Thread

[Ray Smoodiver]

Thought this could do with its own thread:

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

Pic:


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

Pic:


Performance: (DIN 70020)
285hp at 8300rpm
245nm at 7000rpm
max rpm: 8500rpm
Petrol quality: Super plus ROZ 98

Now, compare this to the late spec (think bathurst 98): this engine was re-mapped not by BMW-Motorsport, but by Mclaren:








An early S14 powered touring car for comparison:

[M42Technik]

I came.

Looks like a job for SMOODIVER!

[E30_pilot]

fuck.

nuff said

[Silence*]

I want one

[Jand3rson]

I would take that motor for a swap into my car over any other BMW motor.

Yes, even over an S38.

I would do unbelievable things to get my hands on one of those.

[Widm3r]

As much as i would like to get my hands on one of those also, i couldnt see that engine being enjoyable to drive on the street...

Brian

[Il Duce]

YEZ. thank you.

[87-325ic]

yeah, 8500 rpms.. i bet it would sound alot better than an s2000.


What cars did this engine go into?

so 285 hp from a 4 cylinder... not bad at all.

[Teaguer]

What cars did this engine go into?
so 285 hp from a 4 cylinder... not bad at all.

That was a race only engine destined for the E36 sedans of the various 2.0 liter touring car series of the era .

Yes 285 is a lot from a 4cyl ...but today the top racing teams are getting upwards of 350bhp from the S14....although they are of the 2.5 variety .

[tonytony]

that is very sexy, and i would put that in a street car, but not as a daily.

[AlarmedBread]

Stop putting ideas that my wallet frowns upon into my head.

On second thought, LTW wallet mod = faster car!

[E30Driv3R]

I like the way you think!

[BimmerToad]

Thanks for posting the pics. From the looks of it, it looks like the M42 cylinder head casting was used in the S42. 35mm exhaust valves are huge (stock 30.5mm).

I remember reading that the S42 had a broader torque curve than the S14, both in 2.0L trim

[Jean]

Would be nice to see internals of that thing too :p

Pic number 3 is nuts, so much bracing :crazy:

[Widm3r]

Did the BMW 320 STW use the S42?

Heres a video for reference...

http://www.youtube.com/watch?v=eSJ-HzNWJGM

Brian