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10-22-2011, 01:09 PM | #2 |
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Schrick makes 2 sets of cams for the S65 powerplant.. The 284deg. cams which are more for the street and the 292 deg. cams.
Here is the info.. http://www.turnermotorsport.com/p-24...e90e92-m3.aspx http://www.turnermotorsport.com/p-25...e90e92-m3.aspx The issue is installing them and getting the right tune... Dave
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10-23-2011, 11:42 AM | #4 |
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It shouldn't hurt anything but the tuning, as Dave said, is critical. You have to find someone who can spend a day or two with your car on the dyno.
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10-24-2011, 12:15 AM | #6 |
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cams with the complicity of vanos, this upgrade is not worth the power gain but more importantly risk involved.
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10-24-2011, 12:32 PM | #7 |
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To get the power out of the cams the tuning is critical. I have read upwards of 20rwhp can be had with cams..just be ready to spend a ton having the car tuned.
Dave
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10-24-2011, 12:33 PM | #8 | |
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Dave
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10-25-2011, 10:48 AM | #9 |
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I don't know much about BMW's cams, but with previous experience high lift cams with Vanos/Vtec systems have more valve-blowby (or whatever the technical term is) ... when intake and exhaust valves are at one time both open.
This being said, Supercharging or turbocharging with high lift/variable timing cams was not recomended because the boost would blow by through the valves. This is old-school VTEC talk, maybe the S65 is so much more advance that this doesn't make sense now. Anyways, IMO Cams are one of the last things you should do for the power/$$$ ratio. GL |
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10-25-2011, 08:46 PM | #11 |
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I think that a car with a 8,400 RPM redline doesnt need more radical cams as higher lift/duration cams move the power gains to higher RPM's.
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11-29-2011, 09:44 PM | #12 |
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Good camshaft combination with a proper tune to advance the cams (in order to maintain power at lower rpms) and reducing advance at the proper rpm along with full exhaust mods will produce more than 20 hp.
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11-29-2011, 10:08 PM | #13 |
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11-29-2011, 10:36 PM | #14 | |
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dave
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11-29-2011, 10:38 PM | #16 | |
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The Schrick cams have been available for quite sometime yet no one is feeling froggy to jump at them. Dave
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11-29-2011, 11:24 PM | #17 |
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Just a guess as I am no engine builder or engineer for that matter but from the little I know about a higher lift cam would be as someone mentioned being able to raise the redline and take advantage of the lift at higher RPMS. However with raising the rpms signifigantly than you have to start strengthening internals and possibly using lighter or different springs etc etc.
So although the cams cost X. By the time you tune and properly modify the internal to rev to 9k and make the added power with cams, its probably in the 15k territory. May as well supercharge the thing! redline of 9k with a racing cam would be cool. Would provide for a brutal idle! |
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11-30-2011, 12:40 PM | #18 | |
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Dave
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11-30-2011, 02:46 PM | #19 | |
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Last edited by rednezz; 11-30-2011 at 03:44 PM.. |
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12-02-2011, 11:24 PM | #20 | |
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Dave
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10-10-2012, 01:56 AM | #21 | |
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Hopefully once the new home is complete, I can call Dinan and have them build me a stroker with schtick cams, upgraded valve springs and some tuning to match...... Lets see if they bite when I call them....... If Dinan don't want to tune it, I am sure ESS will do it for me! I would like to have an S65 with 475-500WHP All Motor!!! |
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10-10-2012, 06:46 AM | #22 | |
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Good luck
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