M42club.com - Home of the BMW E30/E36 318i/iS

DISCUSSION => Engine + Driveline => Topic started by: ChItalian1027 on October 25, 2007, 07:26:26 PM

Title: whats the diff??
Post by: ChItalian1027 on October 25, 2007, 07:26:26 PM

hey guys what the diff between the e30 m42 and the e36 m42??? bigger disp.?? i have the e36 engine in my ti

Title: whats the diff??
Post by: Mister V on October 26, 2007, 07:44:19 AM

engine capacity is bigger in the e36 ist 19xx and in the e30 its only 18xxcc
thats in europe i dont know how it is in the usa

Title: whats the diff??
Post by: EN318isPDX on October 26, 2007, 11:41:05 AM

There's alot different but alot the same between the M42 and M44.. Plenty of post all over here about the difference between the 2 motors

Title: whats the diff??
Post by: ChItalian1027 on October 30, 2007, 10:26:55 PM

thanks guys!!

Title: whats the diff??
Post by: Boyracer on October 31, 2007, 03:13:16 AM

Quote from: Mister V;36600

engine capacity is bigger in the e36 ist 19xx and in the e30 its only 18xxcc
thats in europe i dont know how it is in the usa

I think both E30 and E36 M42 has same displacement of 1795 cm3. M44 in E36 after 1995 is larger, 1895 cm3.

Few improvements in E36 M42 over E30 M42

- 6 mm valve stems -> lighter valvetrain and smaller friction losses
- two knock sensors -> can be tuned closer to knock limit
- Variable lenght intake (DISA) -> improves low rpm torque

Title: whats the diff??
Post by: EN318isPDX on October 31, 2007, 10:19:51 AM

Was VANOS ever offered on the M42? That would be a "FUN" project to wire that in haha

Title: whats the diff??
Post by: sheepdog on October 31, 2007, 11:28:52 AM

Quote from: Boyracer;36933

I think both E30 and E36 M42 has same displacement of 1795 cm3. M44 in E36 after 1995 is larger, 1895 cm3.

Few improvements in E36 M42 over E30 M42

- 6 mm valve stems -> lighter valvetrain and smaller friction losses
- two knock sensors -> can be tuned closer to knock limit
- Variable lenght intake (DISA) -> improves low rpm torque

Correct, the M42 is 1.8 liters.
The M44, which is more or less a tweaked M42 is 1.9 liters.

Title: whats the diff??
Post by: Boyracer on November 01, 2007, 03:08:32 AM

Quote from: EN318isPDX;36944

Was VANOS ever offered on the M42? That would be a "FUN" project to wire that in haha

No, M42 and M44 always had fixed camshaft timing.

I have been thinking possibilities of buying el cheapo M50/M52/S50 cylinderhead with VANOS and chopping off two cylinders at the end.

Possibilities of why it would not work are unlimited... Bolt patters, camshaft manufacturing, coolant channels etc etc.

But it would be a heck of a project :D

Title: whats the diff??
Post by: ChItalian1027 on December 31, 2007, 12:21:15 AM

wow thanks guys!!