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

DISCUSSION => Engine + Driveline => Topic started by: namzat18 on September 15, 2014, 08:58:42 PM

Title: connecting rods
Post by: namzat18 on September 15, 2014, 08:58:42 PM

Is it true that the m42 came with forged connecing rods? Read it some where and am very curious. Will help with my build.

Title: Re: connecting rods
Post by: Tgoode318 on September 15, 2014, 09:37:05 PM

Yes M42 is forged But the newer m44 Is Cast!!  :-X

Title: Re: connecting rods
Post by: IlovM42 on September 16, 2014, 06:45:57 AM

Sure about this? Always read that is the crank being cast on m44 and forged on m42 but connecting rod are forged for both

Title: Re: connecting rods
Post by: Tgoode318 on September 17, 2014, 10:10:13 AM

I went back but could not find where i read it was cast. For sure the Crank as you mentioned is cast where as the m42 is forged. The connecting rod im not 100% positive but i did read some where that it was cast. I do know though that The m44 rod was redesigned by Bmw to reduce NVH. Perhaps some one with an m44 could chime in :)

Title: Re: connecting rods
Post by: benz-tech on October 23, 2014, 11:29:59 PM

Quote from: Tgoode318 on September 15, 2014, 09:37:05 PM

Yes M42 is forged But the newer m44 Is Cast!!  :-X

Nope.
M44 and M42 rods are both forged. The M44/late M42 rod is significantly lighter than the early M42 rod and is virtually identical to the S50M3 rod albeit 5mm longer
M44 cranks are indeed cast.