Schrick Cams 2009 catalog + M103 regrinds - PeachParts Mercedes-Benz Forum

MaxxMan · #1 09-20-2009, 06:17 PM

Here's the link for Schrick's 2009 catalog.
http://www.avl-schrick.com/dat/MK/Schrick%202009%20E.pdf
I have the Schrick specs for the M103 cam that can no longer be purchased from them. I am having one ground for testing by 11/01/09, also the M103/M104 headers will be available at that time. Enjoy the data.

LantanaML320 · #2 10-04-2009, 12:46 AM

thanks for the post. Who have you found to re-grind the cam?

teezer · #3 10-04-2009, 09:34 AM

what grinding specs are you going to use ?

DBilas cams in germany offer a few for the m103

http://www.dbilas-dynamic.de/dbilas_eng/index.htm

Mercedes 6-cyl. 260 - 300 (engine M 103) hydro

Part No.: 12.043.001 Application: Road

256

112

11,0

0,9

16/60 - 60/16

---

468.55

207.58

71.300.002

114.24

Part No.: 12.043.005 Application: Road

262

112

10,9

1,0

19/63 - 63/19

---

468.55

---

71.300.002

114.24

Part No.: 12.043.002 Application: Road

264

110

11,0

1,2

22/62 - 62/22

---

468.55

---

71.300.002

114.24

Part No.: 12.043.006 Application: Sport

280

110

11,7

1,5

30/70 - 70/30

---

468.55

---

71.300.002

114.24

Part No.: 12.043.003 Application: Rally

288

108

10,6

36/72 - 72/36

---

468.55

---

71.300.002

114.24

Part No.: 12.043.004 Application: Rally / Oval track

296

105

12,2

43/73 - 73/43

---

504.13

-

Sev · #4 10-06-2009, 02:15 AM

i own a schrick cam for an m103. paid $600 from my buddy MRP Engineering. It came with the valve springs, too. haven't installed it yet though

Joreto · #5 10-06-2009, 02:39 AM

Any one know the specs of the stock m103 cam ?

MaxxMan · #6 10-12-2009, 04:54 PM

The stock cam specs are as follows, intake opens 11.5 degrees (BTDC) and closes 17.2 degrees (ABDC) for a duration of 208.70 degrees. The exhaust opens 18.6 degrees (BBDC) and closes 13.7 degrees (ATDC) for a duration of 212.30. Overlap of 25.2 degrees. Inlet cam has an installed Centerline of 92.85 degrees at(ATDC). The exhaust cam has an installed Centerline of 92.45 degrees (BTDC). I don't have lobe lift dimensions aka cam lift or valve lift fot the stock cam. I do have journal diameter and clearance numbers for standard and oversize cams if anyone wants or needs them.

The SoCal shop I'm using is Clay Smith Cams; These are the Schrick numbers we're going after.
Intake:
272 degree
7.7mm cam lift
11.5mm valve lift.
intake opens 24 degrees before TDC and closes 68 degrees after BDC
valve lift at TDC 1.1mm

Exaust:
268 degree
7.6mm cam lift
11.3mm valve lift
exaust opens 66 degrees before BDC and closes 22 degrees after TDC
valve lift at TDC 1.0mm

Hope this helps.

MaxxMan

PS; Schrick allows the stock valve spring to be used in the M102 engine don't know for sure about M103 yet, but you must make sure that you have the chilled cast iron cam/rocker arm pn.103-050-10-33 for the regrind.

Joreto · #7 10-13-2009, 05:58 AM

Quote:

Originally Posted by MaxxMan

The stock cam specs are as follows, intake opens 11.5 degrees (BTDC) and closes 17.2 degrees (ABDC) for a duration of 208.70 degrees. The exhaust opens 18.6 degrees (BBDC) and closes 13.7 degrees (ATDC) for a duration of 212.30. Overlap of 25.2 degrees. Inlet cam has an installed Centerline of 92.85 degrees at(ATDC). The exhaust cam has an installed Centerline of 92.45 degrees (BTDC). I don't have lobe lift dimensions aka cam lift or valve lift fot the stock cam. I do have journal diameter and clearance numbers for standard and oversize cams if anyone wants or needs them.

great info on the stock cams, thanks

!

JohnM. · #8 11-17-2009, 02:53 AM

Any updates?

MaxxMan · #9 11-24-2009, 09:24 AM

John, I decided to upgrade the valve springs and I'm currently working with the engineers from Eibach. Unfortunately they can be painfully slow because of limited staff in this department. Some cool products in the valve sproing category and worth the wait. I'll let you know when we come up with our choice.

MaxxMan