07-13-2020, 09:56 PM | #1 |
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S55 Cams Anyone???
Has anyone tried adding cams to their S55 motors??? Any performance gain numbers? As a former Evo 8 owner, cams added huge numbers on the 4G63 platforms. As much as 100hp!!!
https://www.kiesmotorsports.com/coll...mw-s55-238-272 |
07-13-2020, 10:08 PM | #2 |
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Yeah, most S55 owners are trying to decide if SCH is real.
Changing cams, I really hadn’t considered it.
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07-13-2020, 11:55 PM | #4 |
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LOL!
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07-14-2020, 12:10 AM | #5 |
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07-14-2020, 12:25 AM | #6 | |
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Quote:
So, I'm guessing these are drop ins that will work with stock valve springs an retainers. Probably gonna be pretty mild. But. I'm sure a substantial increase over stock. Even with bigger turbos the power starts dropping off after 6k-7k rpm. If you can put big enough cams it could rev to 8,000 and make power past 7k rpm. Another good thing, is valve springs and retainers are already available. The 3.0L S55 has great bore to stroke ratio which means it likes to rev, the head flows pretty good. Just need cams to make power at higher rpm's and we should see a big jump in performance.
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1/2 mile trap speed 158 mph ecutek - bend calibration pro tune - flex fuel - mpe - stock turbos - oem+ Last edited by papasmurf_m3; 07-14-2020 at 12:43 AM.. |
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07-14-2020, 01:55 PM | #7 | |
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The popular cams on evos are generally 272 or 274. I don’t know what the stock cam grind is on the f80, but 238 is super mild for the one side.
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07-14-2020, 05:45 PM | #8 |
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Yupp, they gotta be better then stock though. One would hope!
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07-14-2020, 05:51 PM | #9 |
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07-14-2020, 06:44 PM | #11 |
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Talked to Bryan from Kies over the weekend, I wouldn't be surprised to see some type of build with these cams in the distant future... 😏
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07-15-2020, 01:26 AM | #14 |
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07-15-2020, 01:46 AM | #15 |
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Not the same as replacing cams but you can modify the lift.
https://www.bimmermilvs.com/product/...upports-milvs/
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12-06-2020, 08:09 AM | #17 |
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Idk who’s tuning with cams for air/fuel but it sounds interesting. They were fun on my s50 but I needed injectors, tuning, ceramics headers; etc. Tbh I am surprised shrick is still producing these. At least with today’s engine we don’t need to change injectors lol. They’re top quality cams but power can extracted in other ways with the s55 hence the reason way the subject of cams hardly ever comes up.
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12-06-2020, 08:33 AM | #18 |
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According to the BMW technical document.
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12-06-2020, 09:31 AM | #19 |
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Just now, 13 years after introduction, cams are starting to become a thing in the S65 world.
The real problem is tuning, as it was in the E46 before it. I suspect cams may become a thing in the S55, but who knows when tuners will support it? I have a contact at Schrick if anyone has specific questions for them |
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12-06-2020, 01:18 PM | #20 |
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12-07-2020, 07:12 AM | #22 |
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I wouldn't install $1,500 camshafts without data, dyno numbers or cam specs.
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