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Dean · 06-27-2008, 08:12 PM

I know the M20 vs. M42 squabbling will continue until the end of time, so I'd thought I'd throw this on the fire. Here's a racing video of an S42 powered 320 STW The S42 was the Motorsport version of the M42.

Here's a couple of other racing videos:

Porsche 911 GT3 Cup
Prodrive E30 M3 in the Manx Rally

Dean

dc42004 · 06-27-2008, 10:20 PM

hmm, i wonder if the s42 would work on the streets as well, would be sweet to have one in an E30. probably won't last long since it's for racing.

dc42004 · 06-27-2008, 10:22 PM

nvr mind, found this quote
The S42 engine was a 2.0L touring car engine with a 86.5mm bore and around a 85mm stroke, which shared the same block as the street going M42. Unlike the common M42, the S42 had a more sophisticated engine management system, and had individual throttle bodies. The S42 unfortunately did not share the same valvetrain as the M42, and is a solid lifter valvetrain (possibily from the S50Euro) fully capable of over 9000rpm, but was limited to a 8500rpm redline, as dictated by touring car rules. It was mounted upright in the bay, not slanted, and ran on a full dry sump oiling system. The pistons had a static compression ratio of around 12:1, and running on pump gas, the S42 made around 280hp (and up to around 310hp later in it's life). Good luck finding more information on the internet about the S42, it's next to impossible.

Oh, and no, the S42 cams will not fit

onaquest · 06-28-2008, 02:03 AM

kowalski · 06-28-2008, 03:27 AM

I've got a whole ton of pictures of every detail of that car, including some motor shots, and some shots of the motor in pieces. its a pretty impressive and extremely expensive little car.

Fraunhofer318is · 06-28-2008, 01:25 PM

kowalski · 06-28-2008, 03:00 PM

they're all on my computer, but i'll post up a couple good ones later on.

**Blackice** · 02-04-2009, 08:11 PM

I would love to see some photos of this car if you still have them Mike.

trev0006 · 02-06-2009, 05:32 PM

The gear noise is driving me crazy

jenifer.kaif · 09-09-2009, 04:54 AM

Its an interesting video to watch out.

06-27-2008, 08:12 PM	#1 (permalink)
Dean Senior Member Supporting Member Name: Dean Joined: Jun 2005 Posts: 248 iTrader: 0 Thanks: 0 0 Times in 0 Posts	S42 powered 320 STW I know the M20 vs. M42 squabbling will continue until the end of time, so I'd thought I'd throw this on the fire. Here's a racing video of an S42 powered 320 STW The S42 was the Motorsport version of the M42. Here's a couple of other racing videos: Porsche 911 GT3 Cup Prodrive E30 M3 in the Manx Rally Dean Last edited by Blackice; 02-04-2009 at 06:44 PM..

06-28-2008, 02:03 AM	#4 (permalink)
onaquest Senior Member Joined: Mar 2006 From: Coquitlam Posts: 548 iTrader: 0 Thanks: 0 0 Times in 0 Posts	__________________ (OO==[][]==OO) omg AGB-2.7> M20 > M42

06-28-2008, 01:25 PM	#6 (permalink)
Fraunhofer318is Senior Member Joined: Jun 2007 From: Surrey, BC Posts: 630 iTrader: 0 Thanks: 0 0 Times in 0 Posts	Link

09-09-2009, 04:54 AM	#10 (permalink)
jenifer.kaif Member Name: Jenifer Joined: Sep 2009 From: Folsom Posts: 50 iTrader: 0 Thanks: 0 0 Times in 0 Posts	Its an interesting video to watch out. __________________ BMW 1980

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06-27-2008, 10:20 PM	#2 (permalink)
dc42004 Senior Member Joined: Sep 2007 From: Vancouver Posts: 178 iTrader: 0 Thanks: 0 0 Times in 0 Posts dc42004's pictures '91 BMW 318IS	hmm, i wonder if the s42 would work on the streets as well, would be sweet to have one in an E30. probably won't last long since it's for racing.

06-27-2008, 10:22 PM	#3 (permalink)
dc42004 Senior Member Joined: Sep 2007 From: Vancouver Posts: 178 iTrader: 0 Thanks: 0 0 Times in 0 Posts dc42004's pictures '91 BMW 318IS	nvr mind, found this quote The S42 engine was a 2.0L touring car engine with a 86.5mm bore and around a 85mm stroke, which shared the same block as the street going M42. Unlike the common M42, the S42 had a more sophisticated engine management system, and had individual throttle bodies. The S42 unfortunately did not share the same valvetrain as the M42, and is a solid lifter valvetrain (possibily from the S50Euro) fully capable of over 9000rpm, but was limited to a 8500rpm redline, as dictated by touring car rules. It was mounted upright in the bay, not slanted, and ran on a full dry sump oiling system. The pistons had a static compression ratio of around 12:1, and running on pump gas, the S42 made around 280hp (and up to around 310hp later in it's life). Good luck finding more information on the internet about the S42, it's next to impossible. Oh, and no, the S42 cams will not fit

06-28-2008, 03:27 AM	#5 (permalink)
kowalski Senior Member Name: Mike Joined: Feb 2005 From: White Rock Posts: 2,125 iTrader: 0 Thanks: 2 18 Times in 11 Posts kowalski's pictures	I've got a whole ton of pictures of every detail of that car, including some motor shots, and some shots of the motor in pieces. its a pretty impressive and extremely expensive little car.

06-28-2008, 03:00 PM	#7 (permalink)
kowalski Senior Member Name: Mike Joined: Feb 2005 From: White Rock Posts: 2,125 iTrader: 0 Thanks: 2 18 Times in 11 Posts kowalski's pictures	they're all on my computer, but i'll post up a couple good ones later on.

02-04-2009, 08:11 PM	#8 (permalink)
Blackice Moderator Name: Dave Joined: Oct 2007 From: North Vancouver Posts: 1,088 iTrader: 0 Thanks: 43 47 Times in 46 Posts Blackice's pictures '91 BMW 318i '91 BMW 318IS	I would love to see some photos of this car if you still have them Mike.

02-06-2009, 05:32 PM	#9 (permalink)
trev0006 Member Name: mark Joined: Feb 2009 From: cali Posts: 45 iTrader: 0 Thanks: 0 0 Times in 0 Posts	The gear noise is driving me crazy

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