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      10-22-2011, 12:59 PM   #1
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Upgraded cams???

I know Dinan makes it for the 4.6L striker, but can we get them for the regular 4.0L??
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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...

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      10-22-2011, 03:37 PM   #3
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Thx Dave. If I plan on supercharging, will it be beneficial?
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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, 12:08 AM   #5
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What type of power gains could you expect when installing these cams
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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.

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      10-24-2011, 12:33 PM   #8
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Quote:
Originally Posted by hl0m4n View Post
cams with the complicity of vanos, this upgrade is not worth the power gain but more importantly risk involved.
I think you mean complexity of vanos.

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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, 10:54 AM   #10
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Plus, does this car need to lose any more low-end power?
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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, 10:44 PM   #12
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Quote:
Originally Posted by Dave07997S View Post
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
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, 11:08 PM   #13
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Quote:
Originally Posted by B__M__W__RULES View Post
I know Dinan makes it for the 4.6L striker, but can we get them for the regular 4.0L??

I have nothing to contribute but I really wish dinan did produce a motor called the "dinan striker" as mentioned by OP

That would be sick. Dude I got a striker motor!
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      11-29-2011, 11:36 PM   #14
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Quote:
Originally Posted by rednezz View Post
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.
You are stating the obvious when a full exhaust with a tune alone produces more than 20+rwhp. As far as what cams bring to the table the jury is still out there. I've seen someone claim 17rwhp for a set of cams after the tuning was done. This was just to get the car to run right. If we can get the tune and cams for a solid 9k rpm there would be more to be had...now you would need a set of 4.10 gears to really make the package work.

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      11-29-2011, 11:37 PM   #15
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HOw extensive is the tuning with a set of cams on an engine like this? I would think it would need a total overhaul as far as the tune?
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      11-29-2011, 11:38 PM   #16
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Quote:
Originally Posted by Superfly_M3 View Post
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
Agreed, cams should always be part of a package. I think more radical cams would require a increase in rpm to really take advantage of them. I have yet to see a set of cams that produced a reliable increase that was worth the expense.

The Schrick cams have been available for quite sometime yet no one is feeling froggy to jump at them.

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      11-30-2011, 12:24 AM   #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, 01:40 PM   #18
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Quote:
Originally Posted by Ateam View Post
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!
You pretty much nailed it. You won't have to go that high, but at 9krpm where the car is making max power at 8800rpm and a set of 4.10 gears...wow this car would rock.

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      11-30-2011, 03:46 PM   #19
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Quote:
Originally Posted by Dave07997S View Post
You are stating the obvious when a full exhaust with a tune alone produces more than 20+rwhp. As far as what cams bring to the table the jury is still out there. I've seen someone claim 17rwhp for a set of cams after the tuning was done. This was just to get the car to run right. If we can get the tune and cams for a solid 9k rpm there would be more to be had...now you would need a set of 4.10 gears to really make the package work.

dave
cams by themselves will net around 20...but add in full exhaust and good tune you talking about 60+ rwhp gain but that will depend on cam...exaust and how good you tuner can tune those cams....finding the right cam advance and when to reduce the advance is the key.

Last edited by rednezz; 11-30-2011 at 04:44 PM.
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      12-03-2011, 12:24 AM   #20
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Quote:
Originally Posted by rednezz View Post
cams by themselves will net around 20...but add in full exhaust and good tune you talking about 60+ rwhp gain but that will depend on cam...exaust and how good you tuner can tune those cams....finding the right cam advance and when to reduce the advance is the key.
Keep in mind this car already makes over 100hp/litre, its not that I'm doubting that 20rwhp can be had withthe proper tune, key is how much would a tune be worth by itself. I think 10-15rwhp is really what a set of cams are worth if you push the rpm limit beyond the OEM 8400rpm.

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      10-10-2012, 01:56 AM   #21
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Quote:
Originally Posted by Dave07997S View Post
Keep in mind this car already makes over 100hp/litre, its not that I'm doubting that 20rwhp can be had withthe proper tune, key is how much would a tune be worth by itself. I think 10-15rwhp is really what a set of cams are worth if you push the rpm limit beyond the OEM 8400rpm.

Dave
Sorry to dig up an old thread, but, the stock cams are probably pretty good as is for stock displacement. Now, if you look at the stroker dyno graphs....... They are making peak power at ~ 7800RPM..... I think a stroker would benefit from some bigger cams.

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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Sorry to dig up an old thread, but, the stock cams are probably pretty good as is for stock displacement. Now, if you look at the stroker dyno graphs....... They are making peak power at ~ 7800RPM..... I think a stroker would benefit from some bigger cams.

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!!!
What is the elevation in ft. Mac? In Calgary it is had to make power with NA car cause our air is so thin....

Good luck
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