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

DISCUSSION => Engine + Driveline => Topic started by: Vladi on September 06, 2007, 05:44:16 PM

Title: Schrick 256 cams
Post by: Vladi on September 06, 2007, 05:44:16 PM

Anyone packing these cams? Oppinions? I found a used set (~40.000km) and i dunno if i should get them or not.

Thanks!

Title: Schrick 256 cams
Post by: BrandC on September 06, 2007, 06:25:04 PM

Post the lift characteristics and then I can tell you.

Title: Schrick 256 cams
Post by: Vladi on September 07, 2007, 03:28:23 AM

http://www.vacmotorsports.com/cgi-bin/special_view.pl?man=Schrick

What you see is what i see. :confused:

Title: Schrick 256 cams
Post by: tim_s on September 07, 2007, 04:51:18 AM

if you pass these up, let me know! I'd quite like a set. These are the 256 ones yeah?

Title: Schrick 256 cams
Post by: Vladi on September 07, 2007, 12:21:16 PM

Yup, Schrick does only 256's for the M42 as far as i see. The cams are in Germany.

Title: Schrick 256 cams
Post by: Vladi on September 07, 2007, 03:07:58 PM

Brand> "2 Cams, Hydr., BMW M42, 4 Cyl, 256°/110° 10,4mm 1,2mm"

Title: Schrick 256 cams
Post by: gearheadE30 on September 08, 2007, 09:40:33 AM

I think I read somewhere that those cams are more or less shourtened e36 M3 cams. MM has some more extreme ones, but I think they require different tuning.

Title: Schrick 256 cams
Post by: cecotto on September 08, 2007, 12:07:13 PM

Quote from: gearheadE30;33374

I think I read somewhere that those cams are more or less shourtened e36 M3 cams. MM has some more extreme ones, but I think they require different tuning.

If youre saying that the schricks are shortened 6 cylinder cams, then i can tell you that is not possible, the lobecenters are positioned completely different on a 6 cylinder compared to a 4 cylinder

The 4 cylinder has a lobe for each 90-degree

The 6 Cylinder has a lobe for each 60-degree

But the Schrick M42 cams are reground BMW Cams.

Title: Schrick 256 cams
Post by: gearheadE30 on September 10, 2007, 09:14:46 PM

What I meant was that the lift/duration was similar, not that they were the actual cams, but cut off.

Title: Schrick 256 cams
Post by: Lukis on September 20, 2007, 01:26:18 PM

Quote from: cecotto;33384

If youre saying that the schricks are shortened 6 cylinder cams, then i can tell you that is not possible, the lobecenters are positioned completely different on a 6 cylinder compared to a 4 cylinder

The 4 cylinder has a lobe for each 90-degree

The 6 Cylinder has a lobe for each 60-degree

But the Schrick M42 cams are reground BMW Cams.

Are the schrick cams they sell on koed the real deal, or is it fake?

Title: Schrick 256 cams
Post by: BrandC on September 20, 2007, 02:05:48 PM

Quote from: Vladi;33322

Brand> "2 Cams, Hydr., BMW M42, 4 Cyl, 256°/110° 10,4mm 1,2mm"

What is the lift on stock cams?

What does "10,4mm and 1,2mm" mean? Is that the lift? I'm not sure what that last number is.

The most important thing to find out about the cam is at what degree it is 10.4mm and for what duration. Give me some more specs if you can, compare it to stock, and we'll see if they are worth the money.

Title: Schrick 256 cams
Post by: g0dspeed on September 20, 2007, 10:57:49 PM

I'm currently using those cams.... i must say that significant different in the mid and top end.....so far i'm satisfied with them....
if u dun want them... let me know.. i have another project in line.... hehhee

Title: Schrick 256 cams
Post by: xsjado on September 22, 2007, 09:12:40 AM

hmmmmm godspeed u have a new project???got stuff to sell??

Title: Schrick 256 cams
Post by: cecotto on September 22, 2007, 01:41:09 PM

Quote from: BrandC;34081

What is the lift on stock cams?

What does "10,4mm and 1,2mm" mean? Is that the lift? I'm not sure what that last number is.

The most important thing to find out about the cam is at what degree it is 10.4mm and for what duration. Give me some more specs if you can, compare it to stock, and we'll see if they are worth the money.

Max lift = 10.4mm @ 110° ATDC (After TDC)
Lift at TDC during overlap = 1.2mm

These numbers will not tell you much, different cams with the same data can have different lift rates. This cam might lift 4.6mm @ 65° ATDC. While another might lift 5.7mm @ 65° ATDC. (random picked numbers, for illustrating a point)

I'm a bit suprised you ask what the numbers mean, when you wrote this line above:

Quote

Post the lift characteristics and then I can tell you.

Here is a comparison between stock intake, and Schrick intake:
(http://m42club.com/forums/attachment.php?attachmentid=849&d=1172192518)

Title: Schrick 256 cams
Post by: jpod999 on September 22, 2007, 04:00:16 PM

What is that chart measuring?

Title: Schrick 256 cams
Post by: cecotto on September 22, 2007, 04:45:11 PM

Quote from: jpod999;34228

What is that chart measuring?

The chart is measuring lift at specified degree of rotation.

The measurements are made with a degree wheel, and a dialguage. With the guage-point resting on the camlobe directly.  This is not the best way to do it, i prefer to measure the camlift directly on the lifter, this gives more accurate lift curves. As the lobe-footprint is not always at the center of the cam.

Title: Schrick 256 cams
Post by: g0dspeed on September 24, 2007, 03:08:40 AM

Quote from: xsjado;34201

hmmmmm godspeed u have a new project???got stuff to sell??

just got another m42...planning to try something new.. and need the schrick cams....hehehhe