288/280 vs 280/272 cams.

[M3dragon]

I wonder if a cam company would do a run of the CSL cams for us. I wouldn't know who to ask other than shrick or cat cams but I doubt they will.

They would if we had a minimum of 10 paid orders. Not like I looked into this a while back LOL. The main advantage of the CSL cam profile was the low-end balance to keep the power band linear. Schrik makes a touch more power but moves the power band up.

CSL valves are also the wild card as the concave design does help scavenge the exhaust from what I remember. Again helping that low-end "bog" with the BIG OLD INTAKE lol.

[C///M]

Have you dyno'd this setup? How many miles on the shortblock?

Not yet unfortunately. I kept meaning to, but now I'm doing something really stupid to the car involving Karbonius' carbon side panels 🤦. I also have new 996 turbo injectors I would like to install, then get a dyno tune.

Prior to head rebuild, bottom had 114k ish (did treated rod bearings at same time as head). Engine now at 117k. It doesn't get a ton of use. I'm building a wheel-to-wheel car now too so it's going to get even less use unfortunately.

Mind me asking what's the advantage for s62 pressure relief valve? Those rocker arms mustve cost a pretty penny! lol

Sorry for the misunderstanding, the S62 relief valves are identical to the S54 valves, but you can't buy the S54 ones separately and the CatCams don't come with them. I forget which M3s come with the valves in the cams, so if your stock cams have them, you just swap them over. My 2004 did not have the cam versions with the relief valves.

If I recall correctly, the motorsport rocker arms were actually less expensive than the schrick versions at the time. I think I paid right around $1k. The CSL exhaust valves... Now those were expensive. Aftermarket titanium would have been a bit more than half.

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[enjoy_m3]

I'm another member from the CatCams GB with no issues, an 8500rpm redline, track usage, and good oil analyses.

Full Engine Specs (for posterity's sake):

Head:
- Ported Intake/Exhaust ports (mostly exhaust, stock intake couldn't be improved much)
- Head decked
- 288/280 cams
- S62 pressure relief valves
- Brand new OE S54 valve springs/retainers/etc
- OE CSL exhaust valves ($$$)
- BMW Motorsport P45 / P54 DLC rocker arms (NLA unfortunately)

NO CatCams Oil Bridge

Bottom:
- Stock with WPC Treated OE S54 rod bearings

LiquiMoly 10-60 (moved from Castrol)

I will update if i see any concerns in a future oil analysis.

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Mind me asking what's the advantage for s62 pressure relief valve? Those rocker arms mustve cost a pretty penny! lol

[George Hill]

I'm another member from the CatCams GB with no issues, an 8500rpm redline, track usage, and good oil analyses.

Full Engine Specs (for posterity's sake):

Head:
- Ported Intake/Exhaust ports (mostly exhaust, stock intake couldn't be improved much)
- Head decked
- 288/280 cams
- S62 pressure relief valves
- Brand new OE S54 valve springs/retainers/etc
- OE CSL exhaust valves ($$$)
- BMW Motorsport P45 / P54 DLC rocker arms (NLA unfortunately)

NO CatCams Oil Bridge

Bottom:
- Stock with WPC Treated OE S54 rod bearings

LiquiMoly 10-60 (moved from Castrol)

I will update if i see any concerns in a future oil analysis.

Sent from my Pixel 8 Pro using Tapatalk

Have you dyno'd this setup? How many miles on the shortblock?

[0-60motorsports]

CSL if you can get them works well on the low end for the CSL airbox. However if you want to run a hotter cam, if you make the flap work, that removed the low end hesitation from what I remember.

I am pretty much the same as C//M accept running CSL CAMS and running the titanium springs.

If you change cams, don't go cheap and just replace the rocker arms as you are already in there and the wear they have is a wild card that can fail. 2 cents.

I wonder if a cam company would do a run of the CSL cams for us. I wouldn't know who to ask other than shrick or cat cams but I doubt they will.

[M3dragon]

CSL if you can get them works well on the low end for the CSL airbox. However if you want to run a hotter cam, if you make the flap work, that removed the low end hesitation from what I remember.

I am pretty much the same as C//M accept running CSL CAMS and running the titanium springs. Heads were port, polished from Lang racing.

If you change cams, don't go cheap and just replace the rocker arms as you are already in there and the wear they have is a wild card that can fail. 2 cents.

[C///M]

I'm another member from the CatCams GB with no issues, an 8500rpm redline, track usage, and good oil analyses.

Full Engine Specs (for posterity's sake):

Head:
- Ported Intake/Exhaust ports (mostly exhaust, stock intake couldn't be improved much)
- Head decked
- 288/280 cams
- S62 pressure relief valves
- Brand new OE S54 valve springs/retainers/etc
- OE CSL exhaust valves ($$$)
- BMW Motorsport P45 / P54 DLC rocker arms (NLA unfortunately)

NO CatCams Oil Bridge

Bottom:
- Stock with WPC Treated OE S54 rod bearings

LiquiMoly 10-60 (moved from Castrol)

I will update if i see any concerns in a future oil analysis.

Sent from my Pixel 8 Pro using Tapatalk

[jager911]

Martyn iirc you used cat cams with bmw followers. Did you install the pressure relief valves and oil bridge? Asking cause I have a set of cat cams and a set of schrick followers and wondering if it is safe to install them (pm'ed u on fb as well)

I installed 288/280 Cat Cams and new followers with the oil bridge last year. The pressure relief valves are not available separately from BMW for M3. We used pressure relief valves from I believe E39 M5 which fit on the threaded end of Cat Cams. The Cat Cams took about 4 months to come from ECS and the relief valves had to come from Germany which took another 3-4 weeks.

[Altaran]

Martyn iirc you used cat cams with bmw followers. Did you install the pressure relief valves and oil bridge? Asking cause I have a set of cat cams and a set of schrick followers and wondering if it is safe to install them (pm'ed u on fb as well)

I use cat cams 296/288 with the E92 320si followers. I do not use the oil bridge. I have talked to some motorsports teams, according to their feedback it increases oil flow to the head but at the expense of the crank, so rod and main bearings may not receive as much oil. They don't use it, hence I opted not to use it. I haven't put many miles on the rebuilt motor. Maybe in summer after some track days I can tell from my own experience if I am having issues.

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[gorilla69]

I am many others have used the BMW 320i / 11-33-7-549-034 rockers without issue.

Martyn iirc you used cat cams with bmw followers. Did you install the pressure relief valves and oil bridge? Asking cause I have a set of cat cams and a set of schrick followers and wondering if it is safe to install them (pm'ed u on fb as well)

[M3INABUFU]

What I am saying is from experience. It’s well known that these are on backorder worldwide and have been since last year. No vendor, if they are being honest, will give you a timeframe as to when the rockers will be available. Almost all vendors changed their website to show that these are backordered but turner/ECS magically has the ability to get them in 4 days. I am positive if you placed the order they would take your money, keep pushing your order back and make excuses as to why you have not gotten it yet until you finally ask for a refund.


I am glad you haven’t been stung yet but it doesn’t mean you won’t. You will get a lot of mixed reviews on turner/ECS. Turner went downhill after ECS bought them out.

No worries, was just trying to lead members in the right direction. The information is more valuable and it's all I have on hand right now as far as 288/280 setup.
Hopefully I could help any of those who search in the future.

[bmw m3 s50]

I'm not coming at you in anyway, this is simply just from purchasing their products over the last 4 years. No issues.
It's very easy to call any vendor to make sure something is in stock vs. just buying it. Smarter > Harder.

What I am saying is from experience. It’s well known that these are on backorder worldwide and have been since last year. No vendor, if they are being honest, will give you a timeframe as to when the rockers will be available. Almost all vendors changed their website to show that these are backordered but turner/ECS magically has the ability to get them in 4 days. I am positive if you placed the order they would take your money, keep pushing your order back and make excuses as to why you have not gotten it yet until you finally ask for a refund.


I am glad you haven’t been stung yet but it doesn’t mean you won’t. You will get a lot of mixed reviews on turner/ECS. Turner went downhill after ECS bought them out.

[bmw m3 s50]

I have a used set of Schricks 280/272 cams, best option to install them would be new Schricks rockers arms or OEM rockers would be good too?

You would probably have to go with new rockers. Schrick will not honor any warranty if they determine that DLC rockers were not used. Not worth the risk and headache especially when cams are already a pain to install. Cams should be a one and done affair.

Schrick is going to have a flood of orders once they become available again.

[M3INABUFU]

Well I am glad you feel so confident about Turner/ECS. Let’s put that confidence to the test.

Since Turner/ECS has them in stock or can get them in 4 days, how about you place an order for 24 DLC followers. Since they are in stock you should get them right away. If you can get them within 3 weeks. I will buy them from you and pay you $250 extra on top of the cost of the followers.

Easiest $250 you will make. Just post a screenshot of your order to confirm you placed the order so we can start to clock.

I'm not coming at you in anyway, this is simply just from purchasing their products over the last 4 years. No issues.
It's very easy to call any vendor to make sure something is in stock vs. just buying it. Smarter > Harder.

[bmw m3 s50]

I'd honestly beg to differ, I haven't had an issue with either as far as stock. If you'd like to reassure your purchase just call before spending the money.
But like I said beforehand, everything i'v ever ordered from Turner/ECS came without issue.

Well I am glad you feel so confident about Turner/ECS. Let’s put that confidence to the test.

Since Turner/ECS has them in stock or can get them in 4 days, how about you place an order for 24 DLC followers. Since they are in stock you should get them right away. If you can get them within 3 weeks. I will buy them from you and pay you $250 extra on top of the cost of the followers.

Easiest $250 you will make. Just post a screenshot of your order to confirm you placed the order so we can start to clock.