Drivetrain RMW Street Header Dyno
4th Gear
Joined: Jan 2009
Posts: 520
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- Its an interesting post - well, I personally find it mind-boggling..
- Numbers dont lie - as many of NAMers are always preaching
- Maybe the only time someone has done a before and after test of the RMW Shorties
Anybody who belives any kind of a aftermarket header vs a stock unit will make the same or less power is a freaking idiot. I and many others have this header. We can show dyno graphs and just say by experience that this header is one of the best power making once made. I can't tell you why your numbers are the way they are, however, you should talk to your dyno guy and see if he did not have to do anything with your numbers being off.
4th Gear
Joined: Jan 2009
Posts: 520
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RMW Cam is the NEWMAN CAM...darn it, I still have it sitting in the garage..waiting for my larger injectors
No one is saying that, but the fact of the matter is as follows:
- Its an interesting post - well, I personally find it mind-boggling..
- Numbers dont lie - as many of NAMers are always preaching
- Maybe the only time someone has done a before and after test of the RMW Shorties
- Its an interesting post - well, I personally find it mind-boggling..
- Numbers dont lie - as many of NAMers are always preaching
- Maybe the only time someone has done a before and after test of the RMW Shorties
i'm sure jan has more than a few pre and post dyno graphs
. i don't doubt for a second that his header makes gains on the stocker.he has wisely not bothered with this thread....which, as many have posted is hard to interpret due many variables.
lastly, there are many other matters worth boggling your mind over
(not really directed to you personally).btw, i have the mynes header
4th Gear
Joined: Jan 2009
Posts: 520
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oxtox...actually, I cant seem to fathom the dyno numbers posted in the OP. Surely an aftermarket header (be it RMW, Mynes, etc) will have definite power increase over stock...im no expert but I believe that this is the case.
Dats whats mind boggling me
Dats whats mind boggling me
"DYNO GUY" sounds like superhero to me. 
3rd Gear
Joined: Dec 2005
Posts: 151
Likes: 0
From: Chandler AZ
Is this what Jan told you to say?? Please, eveyone knows that RMW had NOTHING to do with the manufacture of the NEWMAN cam, he rebaged it and sold it as his own. Maybe thats why it works so well.
Wow! Your filling us full of new information! Way to go Johnny come lately!
Jan doesn't tell me what to say, are you kidding? I'm a big boy ez1putt and can think on my own accord thanks.
Late comers to the bandwagon.....
My interpretation of the reason for the loss has already been stated, but I will re-state it for the late comers.
I believe (just my opinion here) that the larger primaries (than everyone else on the market) could actually make MORE power than the stock unit in vehicles that make MORE power than my car.
What I am saying is - my car doesn't make enough power to warrant such a large header - hence it actually hurting performance. Much like having only a small amount of water and running it though a fire hose rather than a garden hose. I know it isn't the same thing, but it is just a metaphor to help you understand.
Possibly the header was designed with a higher flowing head and larger displacement motor in mind?
The header defiantly has potential - it is a freakin' nice piece, but the manufacturer should note that this is not a "street" header per se, but a cheaper option of the "race" for guys with a big valve head.
I believe (just my opinion here) that the larger primaries (than everyone else on the market) could actually make MORE power than the stock unit in vehicles that make MORE power than my car.
What I am saying is - my car doesn't make enough power to warrant such a large header - hence it actually hurting performance. Much like having only a small amount of water and running it though a fire hose rather than a garden hose. I know it isn't the same thing, but it is just a metaphor to help you understand.
Possibly the header was designed with a higher flowing head and larger displacement motor in mind?
The header defiantly has potential - it is a freakin' nice piece, but the manufacturer should note that this is not a "street" header per se, but a cheaper option of the "race" for guys with a big valve head.
You're onto something..
My interpretation of the reason for the loss has already been stated, but I will re-state it for the late comers.
I believe (just my opinion here) that the larger primaries (than everyone else on the market) could actually make MORE power than the stock unit in vehicles that make MORE power than my car.
What I am saying is - my car doesn't make enough power to warrant such a large header - hence it actually hurting performance. Much like having only a small amount of water and running it though a fire hose rather than a garden hose. I know it isn't the same thing, but it is just a metaphor to help you understand.
Possibly the header was designed with a higher flowing head and larger displacement motor in mind?
The header defiantly has potential - it is a freakin' nice piece, but the manufacturer should note that this is not a "street" header per se, but a cheaper option of the "race" for guys with a big valve head.
I believe (just my opinion here) that the larger primaries (than everyone else on the market) could actually make MORE power than the stock unit in vehicles that make MORE power than my car.
What I am saying is - my car doesn't make enough power to warrant such a large header - hence it actually hurting performance. Much like having only a small amount of water and running it though a fire hose rather than a garden hose. I know it isn't the same thing, but it is just a metaphor to help you understand.
Possibly the header was designed with a higher flowing head and larger displacement motor in mind?
The header defiantly has potential - it is a freakin' nice piece, but the manufacturer should note that this is not a "street" header per se, but a cheaper option of the "race" for guys with a big valve head.
Matt
In a series like KONI Challenge I can't see a team like RSR (or any team for that matter) campaigning the Grand Am officials and committees for use of a header if it was not goung to do anything. A race team is almost like a business. I can see if it was AutoX racer or NASA series but in a series like KONI they seek sponserships and not by MINI vendors, I mean corporate sponsership to continue to race, travel, accomodation, payroll, etc, and the only way to get those nowadays especially with ecconomic downturn is "Podiums" meaining podium finishes. For RSR I heard it was a PITA just for Grand Am officials to allow them use of JCW brakes. I seriously doubt they use them because they got a "discount" cause they went through some hoops to allow headers. It about good pole positions and podiums, that the race business.
In a series like KONI Challenge I can't see a team like RSR (or any team for that matter) campaigning the Grand Am officials and committees for use of a header if it was not goung to do anything. A race team is almost like a business. I can see if it was AutoX racer or NASA series but in a series like KONI they seek sponserships and not by MINI vendors, I mean corporate sponsership to continue to race, travel, accomodation, payroll, etc, and the only way to get those nowadays especially with ecconomic downturn is "Podiums" meaining podium finishes. For RSR I heard it was a PITA just for Grand Am officials to allow them use of JCW brakes. I seriously doubt they use them because they got a "discount" cause they went through some hoops to allow headers. It about good pole positions and podiums, that the race business.
You seem to watch a lot of racing...ever see a losing driver get interviewed at the end of the race and badmouth any particular parts on his car publicly?(except Tony Stewart's Goodyear thing)
6th Gear
Joined: Dec 2004
Posts: 2,047
Likes: 0
From: NJerz
Okay, so if all of the below is true, what's a good header for cars with the stock head and thus smaller exhaust valves? Supersprint? OBX? Miltek? Stock?
Maybe the above aftermarket pieces are good for the incremental gains many seek due to $ restrictions.
BUT, if you have saved your shekels, then you can do everything if you want to make power: head/header/cam/tune. Hmmm I swear I've read that a thousand times somewhere...
What about opening up the intake side of things? Anyone make fancy intake runners to match up with an aftermarket head? THAT would be the system, no? Intake manifold/head/cam/header/tune?
And this is all why I don't spend my $ on this stuff (yet); it's all too damn confusing
!
mb
Maybe the above aftermarket pieces are good for the incremental gains many seek due to $ restrictions.
BUT, if you have saved your shekels, then you can do everything if you want to make power: head/header/cam/tune. Hmmm I swear I've read that a thousand times somewhere...
What about opening up the intake side of things? Anyone make fancy intake runners to match up with an aftermarket head? THAT would be the system, no? Intake manifold/head/cam/header/tune?
And this is all why I don't spend my $ on this stuff (yet); it's all too damn confusing
!mb
My interpretation of the reason for the loss has already been stated, but I will re-state it for the late comers.
I believe (just my opinion here) that the larger primaries (than everyone else on the market) could actually make MORE power than the stock unit in vehicles that make MORE power than my car.
What I am saying is - my car doesn't make enough power to warrant such a large header - hence it actually hurting performance. Much like having only a small amount of water and running it though a fire hose rather than a garden hose. I know it isn't the same thing, but it is just a metaphor to help you understand.
Possibly the header was designed with a higher flowing head and larger displacement motor in mind?
The header defiantly has potential - it is a freakin' nice piece, but the manufacturer should note that this is not a "street" header per se, but a cheaper option of the "race" for guys with a big valve head.
I believe (just my opinion here) that the larger primaries (than everyone else on the market) could actually make MORE power than the stock unit in vehicles that make MORE power than my car.
What I am saying is - my car doesn't make enough power to warrant such a large header - hence it actually hurting performance. Much like having only a small amount of water and running it though a fire hose rather than a garden hose. I know it isn't the same thing, but it is just a metaphor to help you understand.
Possibly the header was designed with a higher flowing head and larger displacement motor in mind?
The header defiantly has potential - it is a freakin' nice piece, but the manufacturer should note that this is not a "street" header per se, but a cheaper option of the "race" for guys with a big valve head.
Valves are the same size...
Matt
6th Gear
Joined: Jan 2007
Posts: 3,362
Likes: 1
From: Winston-Salem, NC
The idea is...
that the 550s aren't re-worked lower flow units, and have room to grow. Since they can be controlled well even at the low flow of idle, there's no harm in using them and they'll have lower duty cycle, even at higher flows.
Matt
Matt