S50/S52 in an E34?

[Sam-Son]

Just curious anybody have any pics of this?

[gtopaul]

Just curious anybody have any pics of this?


http://members.aol.com/paul3130/private/525m3003.jpg

96 S52 converted to OBDI in 92 Touring.

Paul

[Antrieb]

that is not an s50/s52. they both have ITBs, and this doesn't. this looks to me like either a us spec weakish 240hp "m3 engine", or like a regular m52 with a sticker on it.
Yes it is an s52, just the US version. Still called an s52...

[Sam-Son]

Thanks Paul! Silly question, but how are you liking it so far?

[filip00]

that is not an s50/s52. they both have ITBs, and this doesn't. this looks to me like either a us spec weakish 240hp "m3 engine", or like a regular m52 with a sticker on it.

[repenttokyo]

stupid classification, they aren't even similar....the us spec is more like a 328i engine that's been drilled, not anything like a euro m3....

oh anyway :)


How is the North American 3.2-liter M3 engine (S52) different from the 3.0-liter (S50 B30 USA)?
Unlke the Euro-spec S50 B32, the S52 powerplant is an evolution of the standard production M52 engine. However, it incorporates the following changes over its S50 B30 USA predecessor:
-Increased bore to 86.4mm (from 86.0mm) and increased stroke to 89.6mm (from 85.8mm) for a total displacement of 3,152cc (from 2,990cc)
-More finely balanced camshafts
-Valve lifters, springs and spring seats with reduced mass
-Revised intake and exhaust systems
-OBD II (On-Board Diagnostics, version II) compliance
-Horsepower unchanged at 240 hp (SAE) at 6,000 rpm
-Torque increased to 236 lb/ft at 3,800 rpm (up from 225 lb/ft at 4,250 rpm)

[filip00]

Yes it is an s52, just the US version. Still called an s52...

stupid classification, they aren't even similar....the us spec is more like a 328i engine that's been drilled, not anything like a euro m3....

oh anyway :)

[Sam-Son]

who's down for a new twin turbo 3.5 in the old e34 chassis? =P
pass however I do like the Naturally aspirated N52 motor

[bahnstormer]

who's down for a new twin turbo 3.5 in the old e34 chassis? =P

[MTechnik540i]

Yes it is an s52, just the US version. Still called an s52...

There isn't even a Euro S52 is there? I thought it was just simply named S50B30(286hp) and S50B32(321hp). From what I remember, the US 3.2 is the only one classified as a S52.

[nirvana19]

who's down for a new twin turbo 3.5 in the old e34 chassis? =P

You mean the 3.0 twin turbo from an 08 535i? oh man...

[attack eagle]

That would be all kinds of fun

[attack eagle]

that is not an s50/s52. they both have ITBs, and this doesn't. this looks to me like either a us spec weakish 240hp "m3 engine", or like a regular m52 with a sticker on it.

it has the m50 intake on it. Shrike071 loves his touring. Great writeup on the swap on bf.c

[Sam-Son]

The car is dead reliable. With the 92 M50 intake (same part # as the 95 M3 piece), Turner performance chip, and a few other small changes it's probably running about 265hp-270hp. I only did the swap because I wanted a reliable daily driver. It's in a wagon, if I wanted performance I would have chose something smaller like an E30 to put the engine in. It hauls my dogs around and gets 30mpg @ 80mph on cruise. Most importantly, I don't see another one every 5 minutes.;)

Paul
Great thanks for the info...I'll definitely be doing one of these down the road

[repenttokyo]

sounds like a great car.

[gtopaul]

Thanks Paul! Silly question, but how are you liking it so far?

The car is dead reliable. With the 92 M50 intake (same part # as the 95 M3 piece), Turner performance chip, and a few other small changes it's probably running about 265hp-270hp. I only did the swap because I wanted a reliable daily driver. It's in a wagon, if I wanted performance I would have chose something smaller like an E30 to put the engine in. It hauls my dogs around and gets 30mpg @ 80mph on cruise. Most importantly, I don't see another one every 5 minutes.;)

Paul

[Brandon J]

96 S52 converted to OBDI in 92 Touring.

Paul

Could you describe the power difference with the 2.5L vs the 3.2L for everyone. The swap looks great!

[Sam-Son]

Could you describe the power difference with the 2.5L vs the 3.2L for everyone. The swap looks great!
yeah I'd like to hear that as well

[shrike071]

Seat of the pants feeling is night and day. The car spools up pretty good until about 3500, then at 4k - it just leaps towards the 7k redline. (I've got a 3.64 LSD - so that helps a bit...). The sounds coming from the engine bay are music to my ears as well.