BW CPS & MPG
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Joined: Oct 2012
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From: Hat Creek Ca
BW CPS & MPG
Well guys,
Say what you may about after market CPS modules but so far so good on the new BW unit I installed. Finally drove enough for a refill on the first tank - 371 miles. First go round is 1.5 to 2 MPG gain (@ 18.5 MPG) - most of my averages @ 16.5/17. This is hand calculation, no lie-ometer even involved. Topped off both times until the pump tripped free - several times - while trying to add more.
Mostly around town driving, which for me is 30 mile RT highway to and from town but also 175 mile RT with in-city driving stop and go and 6.5% grades to and from home. ( Yeah both ways - LOL ) Seriously, I realize it may be a fluke but I keep track of everything along these lines. Got a road trip coming up with the fiver so I will most certainly keep track of that for sure
Say what you may about after market CPS modules but so far so good on the new BW unit I installed. Finally drove enough for a refill on the first tank - 371 miles. First go round is 1.5 to 2 MPG gain (@ 18.5 MPG) - most of my averages @ 16.5/17. This is hand calculation, no lie-ometer even involved. Topped off both times until the pump tripped free - several times - while trying to add more.
Mostly around town driving, which for me is 30 mile RT highway to and from town but also 175 mile RT with in-city driving stop and go and 6.5% grades to and from home. ( Yeah both ways - LOL ) Seriously, I realize it may be a fluke but I keep track of everything along these lines. Got a road trip coming up with the fiver so I will most certainly keep track of that for sure
9 ECHO 1
Joined: Aug 2009
Posts: 12,467
Likes: 58
From: Missouri
I ran the BW for quite a while with no problems. Most people report problems when you turn the wipers on, because they share a common ground. In theory, separating the two on individual grounds, would fix this. I say in theory just because I have never seen it done, it may have been.
Other than that, the BW is actually better than some other CPS units out there.
For example, the sensor strength is important. Below you can see a crude test I did to show how strong the magnetic sensor is compared to OEM Grey and OEM Black. Take it with a grain of salt, there is more to it. But who doesnt like fancy pictures?
The picture shows how much weight the sensors were able to suspend from the sensor.
[IMG]
[/IMG]
Other than that, the BW is actually better than some other CPS units out there.
For example, the sensor strength is important. Below you can see a crude test I did to show how strong the magnetic sensor is compared to OEM Grey and OEM Black. Take it with a grain of salt, there is more to it. But who doesnt like fancy pictures?
The picture shows how much weight the sensors were able to suspend from the sensor.
[IMG]
[/IMG]
Hotshot
Joined: May 2005
Posts: 13,484
Likes: 42
From: Stevens Point, WI
Good info!
I find it strange though that if it is a good sensor why do the wipers interfere when they don't cause problems with other CPS's?
FYI I have seen a pic of the ground that needs separation on here before.
I find it strange though that if it is a good sensor why do the wipers interfere when they don't cause problems with other CPS's?
FYI I have seen a pic of the ground that needs separation on here before.
Fleet Mechanic
Joined: Apr 2011
Posts: 1,441
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From: Marseilles IL
I also have the newest International CPS and the windshield wipers don't interfere with it.
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
Well... while I'm no guru on the CPS design, I have a bit of background on electronics in general.
Let's look at what this device is - it's a metal detector:
The magnet "emits" a magnetic field that is pretty much familiar to everybody - thanks to science demonstrations with iron filings and YouTube. However, not all magnetic fields are the same - they are not only weaker and stronger, but they have different shapes as well, depending .
Now, take the pickup system: The coil sees the magnetic field disrupted every time a piece of metal passes through the field. The coil "formula" involves direction of wrap, positive or negative trigger, gauge and length of coil wire, diameter and number of wraps in the coil, RF filtration, yadda-yadda-yadda.
Things to think about: Say you have a coil engineered to pick up a weaker signal at a greater distance - that would make it more susceptible to electrical "noise". Now, throw a less-sensitive coil in there with a big honkin' magnet, and electrical noise is pushed to the background. The sensitive one performs better and is more efficient, but it has side effects.
It's not unlike a 500 HP 7.3L. Sure, it can do it... but not as reliably as a 300 HP 7.3L.
Let's look at what this device is - it's a metal detector:
The magnet "emits" a magnetic field that is pretty much familiar to everybody - thanks to science demonstrations with iron filings and YouTube. However, not all magnetic fields are the same - they are not only weaker and stronger, but they have different shapes as well, depending .
Now, take the pickup system: The coil sees the magnetic field disrupted every time a piece of metal passes through the field. The coil "formula" involves direction of wrap, positive or negative trigger, gauge and length of coil wire, diameter and number of wraps in the coil, RF filtration, yadda-yadda-yadda.
Things to think about: Say you have a coil engineered to pick up a weaker signal at a greater distance - that would make it more susceptible to electrical "noise". Now, throw a less-sensitive coil in there with a big honkin' magnet, and electrical noise is pushed to the background. The sensitive one performs better and is more efficient, but it has side effects.
It's not unlike a 500 HP 7.3L. Sure, it can do it... but not as reliably as a 300 HP 7.3L.
9 ECHO 1
Joined: Aug 2009
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From: Missouri
Its good, but not perfect.
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More Turbo
Joined: Nov 2012
Posts: 727
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From: Chariton, IA
Any one know what the international part number is?
I read a thread on isolating the ground a month or so ago, don't remember where but it was buried in another thread. If I remember right you have to find the ground going to the wipers and cut it then ground it to the body somewhere like under the dash.
I read a thread on isolating the ground a month or so ago, don't remember where but it was buried in another thread. If I remember right you have to find the ground going to the wipers and cut it then ground it to the body somewhere like under the dash.
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Fleet Mechanic
Joined: Apr 2011
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From: Marseilles IL
Any one know what the international part number is?
I read a thread on isolating the ground a month or so ago, don't remember where but it was buried in another thread. If I remember right you have to find the ground going to the wipers and cut it then ground it to the body somewhere like under the dash.
I read a thread on isolating the ground a month or so ago, don't remember where but it was buried in another thread. If I remember right you have to find the ground going to the wipers and cut it then ground it to the body somewhere like under the dash.
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Posting Guru
Joined: Oct 2012
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From: Hat Creek Ca
Does the issue with the wipers surface right away or over time? I tested mine when I first read about it with no trouble but that was only for a few cycles, both intermittent and continuous operation.
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