Drivetrain (Cooper S) MINI Cooper S (R53) intakes, exhausts, pulleys, headers, throttle bodies, and any other modifications to the Cooper S drivetrain.

Drivetrain average hp gain from a cam

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Old Mar 29, 2008 | 11:31 AM
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average hp gain from a cam

i was wondering for those who have installed a cam what the Hp/torque numbers were before and after. and mabe what cam you have. thanks guys
 
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Old Mar 29, 2008 | 03:32 PM
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My friend installed schrick cam stock engine. He told me he got 7-8 HP on dyno. But i prefer RMW cam.
 
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Old Mar 29, 2008 | 03:38 PM
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anyone know the specs on the RMW and the schrick?
 
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Old Mar 29, 2008 | 03:43 PM
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Originally Posted by Jhud
i was wondering for those who have installed a cam what the Hp/torque numbers were before and after. and mabe what cam you have. thanks guys
Adding a cam requires a fair amount of labor. By itself, not worth the expense for the limited gains maybe 5HP using a stock cylinder head. Realize that your power band may be affected depending on which cam you add. Do you want more power mid or low range or high up on rpms?

Adding a ported and polished cylinder head is more expensive and usually would be done at the same time as adding a cam. RMW has both head and cam that will be worth the effort and you can also install larger 440cc injectors, RMW header and exhaust and RMW tune for the ECU for best results.
 
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Old Mar 29, 2008 | 05:24 PM
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There's nothing wrong with letting your engine breath a bit better with a couple hours work. Plus it'll be a good time to replace my spark plugs and clean out my intercooler!

Jeremy
 
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Old Mar 29, 2008 | 06:31 PM
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Originally Posted by minihune
Adding a cam requires a fair amount of labor. By itself, not worth the expense for the limited gains maybe 5HP using a stock cylinder head. Realize that your power band may be affected depending on which cam you add. Do you want more power mid or low range or high up on rpms?

Adding a ported and polished cylinder head is more expensive and usually would be done at the same time as adding a cam. RMW has both head and cam that will be worth the effort and you can also install larger 440cc injectors, RMW header and exhaust and RMW tune for the ECU for best results.
Worth the effort??? Like opening your wallet? Takes about 45 minutes to put a cam. Now your own R and D work, that's another story. You could degree the cam and make more or less power than installing it straight up. That's all Jan has done. Good solid R and D work that has netted him a loyal following on NAM and other places as well I'm sure. Not just bagging on you, but can't anyone answer a question anymore with their own experiences leave it at that.. We know that Jan has good stuff, but others, regardless of how good the afformentioned products are will try their own approach.
 
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Old Mar 29, 2008 | 07:00 PM
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I saw 10wHP and 10wLbFt with a Schrick cam in a JCW head. Very nice gains across the board, only a whiff lumpier idle [very sexy], and no loss in power anywhere. Highly recommended for the relatively minimal cost and install effort on MCS's that are already have a pulley/exhaust/intake.
 
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Old Mar 29, 2008 | 08:54 PM
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Originally Posted by Ryephile
I saw 10wHP and 10wLbFt with a Schrick cam in a JCW head. Very nice gains across the board, only a whiff lumpier idle [very sexy], and no loss in power anywhere. Highly recommended for the relatively minimal cost and install effort on MCS's that are already have a pulley/exhaust/intake.
How did it effect your MPG? Keep thinking about this myself, but don't want to make the engine run rough and or kill the MPG.... PS: Which ECU tune are you using and did you have to change anything there after the cam?
 

Last edited by minimarks; Mar 29, 2008 at 08:57 PM.
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Old Mar 30, 2008 | 07:04 AM
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Originally Posted by minihune
Adding a cam requires a fair amount of labor. By itself, not worth the expense for the limited gains maybe 5HP using a stock cylinder head. Realize that your power band may be affected depending on which cam you add. Do you want more power mid or low range or high up on rpms?

Adding a ported and polished cylinder head is more expensive and usually would be done at the same time as adding a cam. RMW has both head and cam that will be worth the effort and you can also install larger 440cc injectors, RMW header and exhaust and RMW tune for the ECU for best results.
Im not worriexd about the price to do it, id just buy the cam and install it myself. I have a lift and tools and everything. Im a BMW tech slowly learning MINI so i feel pretty comfortable inside my head and timing my engine.
 
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Old Mar 30, 2008 | 08:17 AM
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Originally Posted by Jhud
Im not worriexd about the price to do it, id just buy the cam and install it myself. I have a lift and tools and everything. Im a BMW tech slowly learning MINI so i feel pretty comfortable inside my head and timing my engine.
That's cool, I worked on the BMW's for a couple of years, then worked on both and jumped at the chance to only work on MINIs...It sounds like your a MINI tech that has to work on BMWs....
 
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Old Mar 30, 2008 | 08:31 AM
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Originally Posted by minimarks
How did it effect your MPG? Keep thinking about this myself, but don't want to make the engine run rough and or kill the MPG.... PS: Which ECU tune are you using and did you have to change anything there after the cam?
Minimal negative impact to fuel economy. You are letting in more air at all times, however because of that you aren't at the same throttle position during cruising. I would expect about 1 MPG loss in city driving. This wasn't on my car so I don't have long term data. No changes are necessary to the ECU, this car was using the stock JCW mapping, however an ECU tune [like Jan's] would only help perfect it. There's nothing else you need to worry about or change if you have a JCW package, or a standard MCS with supporting mods [like 15% pulley, CAI, exhaust, and colder plugs].

Cheers,
Ryan
 
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Old Mar 30, 2008 | 08:50 AM
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Originally Posted by chadtoolio
That's cool, I worked on the BMW's for a couple of years, then worked on both and jumped at the chance to only work on MINIs...It sounds like your a MINI tech that has to work on BMWs....
I actually went to school for BMW and only work on BMW, but i seem to be spending more and more time in Mini service department
 
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Old Mar 30, 2008 | 09:41 AM
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Originally Posted by Ryephile
Minimal negative impact to fuel economy. You are letting in more air at all times, however because of that you aren't at the same throttle position during cruising. I would expect about 1 MPG loss in city driving. This wasn't on my car so I don't have long term data. No changes are necessary to the ECU, this car was using the stock JCW mapping, however an ECU tune [like Jan's] would only help perfect it. There's nothing else you need to worry about or change if you have a JCW package, or a standard MCS with supporting mods [like 15% pulley, CAI, exhaust, and colder plugs].

Cheers,
Ryan
Thanks for the info!
 
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Old Mar 31, 2008 | 09:43 AM
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Just a thought.. 10 HP for 300.00-500.00 and more like 2 Hrs work for a novice...yes?? I would look into vendors that carry performance camshafts and call them... there are good cams on the way.. and yes Jan is rocking.. call him and see what he sees in his cams.. I know Jan will talk to ya.. not blow you off.. send him an email!!

I have a camshaft that is scary in mid range to top end!! However it wont idle on stock tune.. so I replaced it back to stock till there is a Tuner available here in my town!! Soon I hope!!

Just me.............................

Thumper

PS IF you have a 15% pulley.. you better get those plugs changed!! I have a few cracked heads do to too much heat and detonation!!
Tpr
 
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Old Apr 8, 2008 | 10:55 PM
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Originally Posted by 483FITTER
anyone know the specs on the RMW and the schrick?

The schrick cam is:
Intake: Duration 264, Lift 9.5mm, overlap 0.5, peak timing 114, open at 18, close at 66.

Exhaust: Duration 272, Lift 9.0mm, overlap 0.65, peak timing 114, open at 70, close at 22.

I could not find any information about RMW cam. NO ONE seems to know? Even the dealers that sell RMW parts ?? I find that funny. I am not sure if I would buy/trust a cam that you could not even see the spec's before you bought it. Why do you suppose RMW will not list it.

Isn't anyone else interested in this important information about a critical part that goes into your Mini's engine ?
 
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Old Apr 8, 2008 | 11:16 PM
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Originally Posted by Thumper460
I would look into vendors that carry performance camshafts and call them... there are good cams on the way.. !

I have a camshaft that is scary in mid range to top end!! However it wont idle on stock tune.. so I replaced it back to stock till there is a Tuner available here in my town!! Soon I hope!!

Just me.............................

Thumper

What were you spec's on the scary cam of yours?
 
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Old Apr 8, 2008 | 11:27 PM
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Originally Posted by JRsMini
The schrick cam is:
Intake: Duration 264, Lift 9.5mm, overlap 0.5, peak timing 114, open at 18, close at 66.

Exhaust: Duration 272, Lift 9.0mm, overlap 0.65, peak timing 114, open at 70, close at 22.

I could not find any information about RMW cam. NO ONE seems to know? Even the dealers that sell RMW parts ?? I find that funny. I am not sure if I would buy/trust a cam that you could not even see the spec's before you bought it. Why do you suppose RMW will not list it.

Isn't anyone else interested in this important information about a critical part that goes into your Mini's engine ?
it's quite simple...

because everyone is going to steal it
 
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Old Apr 8, 2008 | 11:28 PM
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Originally Posted by Ryephile
Minimal negative impact to fuel economy. You are letting in more air at all times, however because of that you aren't at the same throttle position during cruising. I would expect about 1 MPG loss in city driving. This wasn't on my car so I don't have long term data. No changes are necessary to the ECU, this car was using the stock JCW mapping, however an ECU tune [like Jan's] would only help perfect it. There's nothing else you need to worry about or change if you have a JCW package, or a standard MCS with supporting mods [like 15% pulley, CAI, exhaust, and colder plugs].

Cheers,
Ryan
When you talk to shops that have installed the Mini mania or Schrick cam the postings were an increase in MPG. And that it was not necessary for a ECU tune to achieve that. Although overall benefits with other mods not limited to the ECU tune would further increase the potential of the cam. And this was on MINIs that were MC S only not JCW ? But because of the wide range of individual mods the end results vary widely with the exception of loss in MPG.
 
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Old Apr 8, 2008 | 11:32 PM
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Originally Posted by JRsMini
When you talk to shops that have installed the Mini mania or Schrick cam the postings were an increase in MPG. And that it was not necessary for a ECU tune to achieve that. Although overall benefits with other mods not limited to the ECU tune would further increase the potential of the cam. And this was on MINIs that were MC S only not JCW ? But because of the wide range of individual mods the end results vary widely with the exception of loss in MPG.

interesting..... never heard that before
ask them to show you the data
 
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Old Apr 8, 2008 | 11:35 PM
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Originally Posted by Revolution Mini Works
it's quite simple...

because everyone is going to steal it

So when someone buys your cam your customer just installs it assuming it is machined correctly. And does not dial it in ??
I would think you would be proud of your cam and post the spec's. Only your's would be the genuine RMW cam. Even Mini Mania copied Schricks it cheaper same spec's but they they do not sell anywhere near how many the true Schrick cam.
 
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Old Apr 8, 2008 | 11:39 PM
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Originally Posted by JRsMini
So when someone buys your cam your customer just installs it assuming it is machined correctly. And does not dial it in ??
I would think you would be proud of your cam and post the spec's. Only your's would be the genuine RMW cam. Even Mini Mania copied Schricks it cheaper same spec's but they they do not sell anywhere near how many the true Schrick cam.
I am proud of it... I can't keep them in stock
I plan on keeping it that way.
 
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Old Apr 8, 2008 | 11:48 PM
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Originally Posted by Revolution Mini Works
interesting..... never heard that before
ask them to show you the data

Mini Mania 1-800-946-2642 talk to Don he will give you all the data you need.

I am just passing on what I read here on NAM and made some calls. I am cam shopping but I am use to looking at many cam grinds and picking the one I want to try. It is a bit hard to do when the top choices all have spec's but yours that many say is the best has none to see.
 
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Old Apr 8, 2008 | 11:59 PM
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Originally Posted by JRsMini
Mini Mania 1-800-946-2642 talk to Don he will give you all the data you need.

I am just passing on what I read here on NAM and made some calls. I am cam shopping but I am use to looking at many cam grinds and picking the one I want to try. It is a bit hard to do when the top choices all have spec's but yours that many say is the best has none to see.

we have dyno'd all the cams out there for sale.....

I have made about 10 different cams since starting this project over 2yrs ago....

if you saw how much I spent trying to find a cam that works better than the others you would see why I am not giving out the info.

I am sorry but it is what it is

most cam grinders put false specs up
try putting one of the cams on the machine and see what it really is
even knowing the lift and duration is only part of the puzzle
 
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Old Apr 9, 2008 | 12:03 AM
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Jan, how hard is it to install the cam? Is it almost like the pulley install? You've got to access the right side (the pullies side) of the engine and jack it up? If this is the way and you can replace the stock and installa yours then it's worth the money. If you gotta take your engine apart then it would be better installing it along with your head and core. Please clarify.
 
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Old Apr 9, 2008 | 12:09 AM
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Originally Posted by Revolution Mini Works
we have dyno'd all the cams out there for sale.....

I have made about 10 different cams since starting this project over 2yrs ago....

if you saw how much I spent trying to find a cam that works better than the others you would see why I am not giving out the info.

I am sorry but it is what it is

most cam grinders put false specs up
try putting one of the cams on the machine and see what it really is
even knowing the lift and duration is only part of the puzzle
That very nice RMW thank you for that information. I can understand why you would not want to show the spec's on a open forum. I know that some cam grinders will use different methods of showing the spec' based on where it was measured but I have never really known one that posted false spec's. The better cam grinders use a flow program to see how some numbers will work .Then it is ground and tested. If this is what you are talking about you do? If that is so then you spent some time and money to get your cam. By the way what is the cost of your cam. You can pm me.
 

Last edited by JRsMini; Apr 9, 2008 at 12:12 AM.
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