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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Sun, Nov-20-2016, 06:06:47 PM   #131
HassanEido
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Default Re: 280 / 272 Cat Cams unboxing and review! pics inside

But how do I remove these valves using the screw driver? Is it threaded in there? Is it a press fit into the new cams? I can't see threads in the other set of cat cams
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Modified stock airbox,afe plastic intake elbow Afe prodry drop in, electric fan conversion,SSV2 catless headers, custom 2.5" dual sec1, custom sec2 2.5" dual with e9xM X pipe, SuperSprint Race inspired custom section 3,tms pulleys,Cat Cams 280 272, custom dyno tune, csl box to be installed sooooonn

357.7 whp 283.5 wtq

Custom exhaust thread and dyno:
http://m3forum.net/m3forum/showthread.php?t=569086
Cams thread and dyno:
http://m3forum.net/m3forum/showthread.php?t=554439

Custom cf airbox thread:
http://m3forum.net/m3forum/showthread.php?t=595180

Last edited by HassanEido; Sun, Nov-20-2016 at 06:25:34 PM.
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Old Sun, Nov-20-2016, 07:54:43 PM   #132
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Default Re: 280 / 272 Cat Cams unboxing and review! pics inside

So schrick cams come with this already installed?
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Old Sun, Nov-20-2016, 08:24:15 PM   #133
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Default Re: 280 / 272 Cat Cams unboxing and review! pics inside

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Originally Posted by Vmals89 View Post
So schrick cams come with this already installed?
That's my understanding
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Old Sun, Nov-20-2016, 08:25:34 PM   #134
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Default Re: 280 / 272 Cat Cams unboxing and review! pics inside

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Originally Posted by HassanEido View Post
But how do I remove these valves using the screw driver? Is it threaded in there? Is it a press fit into the new cams? I can't see threads in the other set of cat cams
Lang made it sound like it's threaded in and that there would be something similar to the CPV that is mounted in the engine block.
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FLMS Half Cage, RaceTech 4009HR drivers seat, Schroth 6-Pt Harness, E.S.S. Fire System, AIM SOLO DL with ECU Harness, SmartyCam, Angle Aluminum with VAC dead pedal, Sparco Steering Wheel on MOMO hub, MCS Suspension, Hyperco 800F 900R springs, Hotchkis Front and Rear Sway bars, Vorshlag Camber Plates, Turner ARCA, AJ Hartman Front Splitter, BW V2 Wing, BW CF Rear Diffuser, APEX ARC-8 wheels, Brembo BBK Front, Carbon Fiber Roof, CF Headlight Blanks, Door Windows and Cards Delete, TMS rear and front subframe reinforcement, Zionsville Competition Cooler, BW Oil Cooler, Oil Diverter Valve, Motorsports Thermostat, Evolve CF Intake, Epic Stepped Headers, Turner Pulleys, BW 3.5" Race Exhaust, EPIC Alpha N Tune, Beisan Oil Disk and Vanos Seals, ZF 5MT, CAE Ultra Shifter

My track journal: http://www.m3forum.net/m3forum/showthread.php?t=509148
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Old Sun, Nov-20-2016, 08:35:10 PM   #135
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Default Re: 280 / 272 Cat Cams unboxing and review! pics inside

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Originally Posted by ThunderMoose View Post
That's my understanding
Boy how I sure as **** do hope so.....I'm soo tired of pull my damn vanos lmao.....😧😧😧

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Old Sun, Nov-20-2016, 10:34:04 PM   #136
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Default Re: 280 / 272 Cat Cams unboxing and review! pics inside

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Boy how I sure as **** do hope so.....I'm soo tired of pull my damn vanos lmao.....

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Old Mon, Nov-21-2016, 06:54:30 PM   #137
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Default Re: 280 / 272 Cat Cams unboxing and review! pics inside

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Originally Posted by HassanEido View Post
Needless to say you scared the crap out of me. enough that i jumped out of bed to check my stock cams for the valve. This only affects the vanos right? Or does it affect anything else in the engine..... is that it?Attachment 200551

If that's it then I f'd up .do you think any damage would occur i drove it for like 3 days.. and a few dyno pulls. Smh. Now i have to tear into it again.
It's at the body shop for a repaint.. dammit no mod goes unpunished
Yes that's the valve. Very rarely we have seen that some S54 camshafts do not have this valve, some CSL's didn't have this in the cams and some very early production S54's I have disassembled in the US didn't have the valve. The inlet hole in the camshaft that allows oil into the cam to lubricate the vanos gears is pretty small so the oil pressure loss may not be huge. However the outlet hole seems to be quite large so you'll definitely be losing some oil pressure. The cams that don't have the relief valve in them don't have any outlet hole. The reason the valve was added was so that when the vanos is advancing either the exhaust cam or the intake cam. When VANOS advances timing the splined gear moves into the camshaft. Without a valve there the oil has no where to go and the VANOS unit has to push that oil out the tiny hole. With the pressure relief valve installed anytime oil pressure inside the camshaft goes above ~60psi the oil pressure valve will open up and allow oil to flow through the cam out the 6mm hole for the cam timing tool.

I'm surprised whoever sold you this camshaft didn't tell you about this valve. I usually put the old cam in soft jaws in a vise and use a long screw driver with channel locks on the screw driver to remove the valve. It is threaded into the camshaft. Personally I put a little loctite on it when I install it into the new camshaft.

Quote:
Originally Posted by bigjae1976 View Post
Not having the pressure relief installed will divert flow from somewhere else. If the passage in the cam end is small, probably not a huge effect on pressures elsewhere. If it's a huge gaping hole then it would have a significant effect.

Doesn't the VANOS work by varying oil pressures within the unit? I would think that the only issue you'd have is the VANOS working correctly. So you may need to retune?

Overall, I would address it ASAP but I don't imagine this being catastrophic.
Agreed, probably not catastrophic since the oil inlet hole is small but still something that should be addressed, BMW had it there for a reason and there's no real way for us to know how not having it installed will affect the oil pressure.
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Old Mon, Nov-21-2016, 07:15:56 PM   #138
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Default Re: 280 / 272 Cat Cams unboxing and review! pics inside

Quote:
Originally Posted by AndrewLang View Post
Yes that's the valve. Very rarely we have seen that some S54 camshafts do not have this valve, some CSL's didn't have this in the cams and some very early production S54's I have disassembled in the US didn't have the valve. The inlet hole in the camshaft that allows oil into the cam to lubricate the vanos gears is pretty small so the oil pressure loss may not be huge. However the outlet hole seems to be quite large so you'll definitely be losing some oil pressure. The cams that don't have the relief valve in them don't have any outlet hole. The reason the valve was added was so that when the vanos is advancing either the exhaust cam or the intake cam. When VANOS advances timing the splined gear moves into the camshaft. Without a valve there the oil has no where to go and the VANOS unit has to push that oil out the tiny hole. With the pressure relief valve installed anytime oil pressure inside the camshaft goes above ~60psi the oil pressure valve will open up and allow oil to flow through the cam out the 6mm hole for the cam timing tool.

I'm surprised whoever sold you this camshaft didn't tell you about this valve. I usually put the old cam in soft jaws in a vise and use a long screw driver with channel locks on the screw driver to remove the valve. It is threaded into the camshaft. Personally I put a little loctite on it when I install it into the new camshaft.



Agreed, probably not catastrophic since the oil inlet hole is small but still something that should be addressed, BMW had it there for a reason and there's no real way for us to know how not having it installed will affect the oil pressure.
Thanks for your reply andrew. One last question, do the cat cams come pre threaded for this valve? Or do I have to use a thread maker... just trying see if i'll need to remove the cam from the engine or if removing the vanos only will work
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Mods:
Modified stock airbox,afe plastic intake elbow Afe prodry drop in, electric fan conversion,SSV2 catless headers, custom 2.5" dual sec1, custom sec2 2.5" dual with e9xM X pipe, SuperSprint Race inspired custom section 3,tms pulleys,Cat Cams 280 272, custom dyno tune, csl box to be installed sooooonn

357.7 whp 283.5 wtq

Custom exhaust thread and dyno:
http://m3forum.net/m3forum/showthread.php?t=569086
Cams thread and dyno:
http://m3forum.net/m3forum/showthread.php?t=554439

Custom cf airbox thread:
http://m3forum.net/m3forum/showthread.php?t=595180
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Old Mon, Nov-21-2016, 07:17:18 PM   #139
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Default Re: 280 / 272 Cat Cams unboxing and review! pics inside

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Originally Posted by HassanEido View Post
Thanks for your reply andrew. One last question, do the cat cams come pre threaded for this valve? Or do I have to use a thread maker... just trying see if i'll need to remove the cam from the engine or if removing the vanos only will work
The threads should already be in the camshaft. I would just do it all with the cams still in the engine.
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Old Mon, Nov-21-2016, 07:54:30 PM   #140
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Default Re: 280 / 272 Cat Cams unboxing and review! pics inside

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Originally Posted by AndrewLang View Post
The threads should already be in the camshaft. I would just do it all with the cams still in the engine.
Thank u sir
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Mods:
Modified stock airbox,afe plastic intake elbow Afe prodry drop in, electric fan conversion,SSV2 catless headers, custom 2.5" dual sec1, custom sec2 2.5" dual with e9xM X pipe, SuperSprint Race inspired custom section 3,tms pulleys,Cat Cams 280 272, custom dyno tune, csl box to be installed sooooonn

357.7 whp 283.5 wtq

Custom exhaust thread and dyno:
http://m3forum.net/m3forum/showthread.php?t=569086
Cams thread and dyno:
http://m3forum.net/m3forum/showthread.php?t=554439

Custom cf airbox thread:
http://m3forum.net/m3forum/showthread.php?t=595180
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Discussing 280 / 272 Cat Cams unboxing and review! pics inside in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)