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Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 07-21-2016, 07:05 AM   #21
rkneeshaw
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Quote:
Originally Posted by Davew View Post
This may or may not help you to know if the ZHP cam is a 248 or not.

...

Final photo is at maximum lift, and is at 0.3925 (image 1441)
Cool, I might use this next time I pull the valve cover on my car. Shame, I just replaced the valve cover gasket about two months ago...

Also, .3925 inches is 10mm, which is the lift specs on the Schrick 248 cam, so that makes perfect sense.

Your setup is almost the right setup to measure duration. You'd need your head installed and timed though, and using a degree wheel on the crankshaft you would measure crankshaft rotation starting from when your dial indicator showed .050" through to when it came back down to .050", and that is your duration measurement. I may end up doing this on my car.

Quote:
Originally Posted by Davew View Post
Also, as someone who has purchased TS2 and the TS2+ upgrade from ESS, I didn't notice and difference in any of the vanos settings between the two tune files. Just an interesting note to consider
That is what I was suspecting, very good info!
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Old 07-21-2016, 11:30 AM   #22
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Some info I collected during research
Not sure if useful
Attached Files
File Type: pdf 1304402.pdf (37.1 KB, 87 views)
File Type: pdf 1304405.pdf (34.7 KB, 69 views)
File Type: pdf 1304406.pdf (36.3 KB, 71 views)
File Type: pdf Schrick 2011 E (2).pdf (341.8 KB, 75 views)
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Old 07-21-2016, 01:56 PM   #23
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Originally Posted by dbarton62 View Post
Some info I collected during research
Not sure if useful
Hey bdarton, are those PDF's from cat cams the specs on stock cams out of the M52TU? Or are those regrind specs?

I wish we had something like that for the ZHP cams
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Old 07-21-2016, 04:26 PM   #24
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Originally Posted by rkneeshaw View Post
Hey bdarton, are those PDF's from cat cams the specs on stock cams out of the M52TU? Or are those regrind specs?

I wish we had something like that for the ZHP cams
Not sure
I got a quick email response from CatCams on a couple of questions when I did my research.
Can't recall my questions.......send them a note.
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Old 07-21-2016, 08:34 PM   #25
rkneeshaw
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Originally Posted by dbarton62 View Post
Not sure
I got a quick email response from CatCams on a couple of questions when I did my research.
Can't recall my questions.......send them a note.
Good idea, done!
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Old 07-21-2016, 11:56 PM   #26
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Quote:
Originally Posted by Davew View Post
Also, as someone who has purchased TS2 and the TS2+ upgrade from ESS, I didn't notice and difference in any of the vanos settings between the two tune files. Just an interesting note to consider
Also of note is that between the ZHP and non-ZHP base tunes, the VANOS settings, ignition timing, and fueling are all identical.
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Old 07-22-2016, 03:20 AM   #27
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Here are the data sheets for the Schrick 248/248 cams.

Might help.

I am running these in my 323i with great results.
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File Type: pdf 0261A1481-DV0.pdf (122.3 KB, 86 views)
File Type: pdf 0261E1481-DV0.pdf (121.8 KB, 253 views)
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Old 07-22-2016, 02:23 PM   #28
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Originally Posted by TerraPhantm View Post
Also of note is that between the ZHP and non-ZHP base tunes, the VANOS settings, ignition timing, and fueling are all identical.


I believe you as you know a lot more about these DMEs than I do but isn't it comparing apples to oranges since one uses MS43 and the other MS45.1? Couldn't the same base maps produce different results due to wideband control and different knock control strategies as well as other variables between the two DMEs?


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Old 07-22-2016, 03:16 PM   #29
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Originally Posted by sbrach View Post
I believe you as you know a lot more about these DMEs than I do but isn't it comparing apples to oranges since one uses MS43 and the other MS45.1? Couldn't the same base maps produce different results due to wideband control and different knock control strategies as well as other variables between the two DMEs?


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There are non-ZHP 330s with the MS45.1 (all US-spec RWD non-M E46s made from March 2003 onward use the MS45.1)

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Old 07-23-2016, 04:01 PM   #30
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Ahh, that makes sense. I thought only ZHP cars got the MS45.1.
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Old 07-23-2016, 08:27 PM   #31
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Quote:
Originally Posted by Davew View Post
This may or may not help you to know if the ZHP cam is a 248 or not.

This is a schrick 248 intake cam, firstly I dialled the indicator to 0 on the base circle (image 1429)

Now to make this easy and near enough to accurate as I can, I have used a spirt level on the front of the cam bolts (image 1430)

The first reading is 0.0156 (image 1432)

I then rotated the camshaft anti clockwise again and levelled the front bolts but this time I placed the spirit level from below the bolts (two bolts level at the bottom rotation, image 1434).

The reading was 0.3355 (image1436)

I then rotated anti clockwise one last time till I could level the front cam bolts at the top position again.

The reading was 0

Final photo is at maximum lift, and is at 0.3925 (image 1441)

This may help you rule out if the ZHP cam is or isnt the same as the schrick 248, in a relatively easy manner. It is the only relatively easy way I can think to help without access to a ZHP cam, and could be done with the cam in the car.
get yourself one of these it is easier to find the peak of the lobe. you just unscrew your ball tip of the dial indicator and screw the new one in.

https://www.machineryhouse.com.au/Q2165

Last edited by reggid; 07-23-2016 at 08:29 PM.
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Old 07-23-2016, 08:38 PM   #32
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Originally Posted by reggid View Post
get yourself one of these it is easier to find the peak of the lobe. you just unscrew your ball tip of the dial indicator and screw the new one in.

https://www.machineryhouse.com.au/Q2165
I think you are missing my point of trying to help someone verify a cam profile with some basic tools and a few easy points to approximate. The Aim was to confirm or deny one profile.
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Old 07-23-2016, 08:58 PM   #33
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To ***Rob43*** Jul 21 at 8:46 AM

Dear Robert
Many thanks for your below Schrick cam enquiry.
Firstly, where are you located for delivery please so I can quote correct prices and shipping ?
Europe never got the ZHP model, so whilst we cannot confirm 100% the OEM cam specs, I am sure you are are not far off at around 248 degrees, perhaps a little less.

We have had good results from both the 264/248 and 272/254 degree Schrick sets.
Depending on cars mileage, you may want to consider new valve springs too ?

Please let me know on the above and I will be happy to send you back a quote on what items you wish
Very best regards
Roy

Please let me know if we can help further.
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Old 07-18-2018, 07:57 AM   #34
rkneeshaw
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Took two years, but I've got measurements from a set of ZHP cams from a cam performance shop. Here's how they stack up:

Stock B30:
Intake 240 degree, unknown lift?
Exhaust 228 degree, unknown lift?


ZHP:
Intake 246 degree, 10mm lift
Exhaust 237 degree, 9.4mm lift


Schrick 248/248 set:
Intake 248 degree, 10mm lift
Exhaust 248 degree, 10.8mm lift
Attached Files
File Type: pdf 0261A1481-DV0.pdf (122.3 KB, 56 views)
File Type: pdf 0261E1481-DV0.pdf (121.8 KB, 60 views)
File Type: pdf BMW-ZHPCams.pdf (45.1 KB, 68 views)
File Type: pdf BMW-VanosDoc.pdf (87.3 KB, 60 views)
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Old 07-18-2018, 09:46 AM   #35
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Ive been lurking waiting for an update, Thanks for posting!
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Old 08-18-2019, 02:57 PM   #36
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Finally did a cam swap on my car. Pulled out the ZHP cams and took some pics for reference. They are different than the Schrick cams (248/256) that I installed. Here's all the markings I could find:









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