Question for cs 19 and others about datalogging and jet tuning!!!
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Question for cs 19 and others about datalogging and jet tuning!!!

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    Senior Member badbug3's Avatar
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    Default Question for cs 19 and others about datalogging and jet tuning!!!

    How much time will it take to make it useful when never ran one before? How much weight does it add to the boat?
    Last edited by badbug3; 07-30-2014 at 03:14 PM.

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    Senior Member Boat 405's Avatar
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    Quote Originally Posted by badbug3 View Post
    I was wondering just how useful is data logging when trying to tune a jet boat to its best? Say after its tuned, do you keep messing with it or take it off? Does it help when water conditions are different? IS it worth the investment? How do u know what the numbers mean? How much time will it take to make it useful when never ran one before? How much weight does it add to the boat?
    Use it every pass. Very difficult to really know what is going on without it. Weighs almost nothing less than 5 lbs. It will take a while to get an understanding of what things mean and how to use them.
    Boat 405.

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    ThoseGuysRacing.net express bio's Avatar
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    One of the best investment I have made. If you are going racing it is a must. It will take you sometime to learn to read it.

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    Senior Member badbug3's Avatar
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    what would a data logger system cost complete and which one is the one to have?

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    Senior Member Ahsumtoy's Avatar
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    Gary, I don't have a data recorder on my boats, but I don't race them either. However, I do use one on my sand drag car and couldn't race without it. We gather information such as engine rpm, driveline rpm, throttle position, fuel pressure, boost, and exhaust temps. In your boat you would want to add bowl pressures as well. I'm sure others will chime in on other useful data you would benefit from. So how's the boat coming? Steve

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    Senior Member hotbo's Avatar
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    i have been around the QD set-up the MPD set-up for my Friend.

    i will be spending the Money as soon as my boat hits the water for my own QD system


    i will more than likely not be racing my new boat(i can if i want) but they are the greatest tool to have for a jet imo.

    otherwise you are just guessing at set-ups,ect.

    Travis...
    WFLC


    2011 Performer SS
    built by Scott Seastrom.

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    Highaboosta Unchained's Avatar
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    Quote Originally Posted by badbug3 View Post
    IS it worth the investment? ?
    Gary, you already made the investment.
    Your EFI technology or Autronics ECU can datalog more stuff than you could ever need.

    Not just engine info but anything with a 0-5 v signal, like a pressure transducer.
    Pressure Transducer

    I've heard of guys sticking a MAP sensor in the valve cover to monitor crankcase pressure and the Bonneville guys will stick one in the scoop to see if their getting positive pressure and datalogging those readings.

    You can have it trip with throttle position, MAP, rpm, manual switch, whatever you want.
    I have it so I just flip a toggle switch to arm it but it won't start recording until 3000 rpm.

    Someday it would be nice if there was a way to tie the GPS into it too.
    Last edited by Unchained; 06-14-2011 at 11:43 AM.

    Twin Turbo 1800 HP V-Drive lake boat

    http://s621.photobucket.com/albums/t...t=MAH05771.mp4

    Quote Originally Posted by Trigger View Post
    No one cares about your buddies old antiquated garden hose technology.
    Quote Originally Posted by MAXIMUS View Post
    I think I could run more boost but it's a real hand full right now

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    Senior Member badbug3's Avatar
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    Quote Originally Posted by Ahsumtoy View Post
    Gary, I don't have a data recorder on my boats, but I don't race them either. However, I do use one on my sand drag car and couldn't race without it. We gather information such as engine rpm, driveline rpm, throttle position, fuel pressure, boost, and exhaust temps. In your boat you would want to add bowl pressures as well. I'm sure others will chime in on other useful data you would benefit from. So how's the boat coming? Steve
    I talked to Tom yesterday to go over some things and one of the changes i made was to get rid of the giant fuel tank obstruction that sits right in front of the engine. I realize its necessary to provide the fuel volumn needed for an alcohol engine, but not needed with my e85 deal . Carson Brummet designed an auxilliary fuel tank that mounts on the front motor plate that feeds the primer pump, cv block mounted pump that feeds the little tank, and the tank gravity feeds the high pressure efi injector pump. It houses the pressure regulator, has foam inside to eliminate fuel bubbles, and has a screw on filter on the bottom of it. It makes it where you can put the fuel tank anywhere and the block pump will suck it right up. Now Tom is going to mount 2, 10 gallon side gunnel tanks to feed the block mount pump. Having baffles installed in the side tanks along with site tubes to monitor fuel supply in tanks. I think it will look better with the hidden side tanks and gives much more room to put more junk in front of motor if needed. gary

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    Senior Member HomeBlown57's Avatar
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    What numbers are good and bad? What are we looking to get from the data?

    I have taps at 2 O'clock and 5 O'clock on the pump suction housing. But I don't know what good numbers are.

    If I were to tap the droop, what numbers would I be looking for?

    Check Motec for a gps with 0-5 output. And digital output as well.

  12. #10
    Senior Member badbug3's Avatar
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    Quote Originally Posted by Unchained View Post
    Gary, you already made the investment. <BR>Your EFI technology or Autronics ECU can datalog more stuff than you could ever need. <BR><BR>Not just engine info but anything with a 0-5 v signal, like a pressure transducer. <BR><A href="http://www.transducersdirect.com/HeleoCart/ProductCategory/Pressure+Transducer(26).aspx" target=_blank>Pressure Transducer</A><BR><BR>I've heard of guys sticking a MAP sensor in the valve cover to monitor crankcase pressure and the Bonneville guys will stick one in the scoop to see if their getting positive pressure and datalogging those readings. <BR><BR>You can have it trip with throttle position, MAP, rpm, manual switch, whatever you want.<BR>I have it so I just flip a toggle switch to arm it but it won't start recording until 3000 rpm.<BR><BR>Someday it would be nice if there was a way to tie the GPS into it too.

    I think in my circumstance where i have more than one engine, i might ought to just get a separate data logger that stays with the boat in case i change to another motor that does not have an ecu on it. That way my engine computer wont be married to the boat. Just cost more money.

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    B1 Racing cs19's Avatar
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    Quote Originally Posted by badbug3 View Post
    I was wondering just how useful is data logging when trying to tune a jet boat to its best? Say after its tuned, do you keep messing with it or take it off? Does it help when water conditions are different? IS it worth the investment? How do u know what the numbers mean? How much time will it take to make it useful when never ran one before? How much weight does it add to the boat?
    Man, loaded question.

    On something like yours (I've heard and read about it quite a bit) I would absolutly be looking at some kind of data logger. Boost, intake high, low, bowl and GPS or speed would be a good starting point, air fuel is neat too. Unless you've set up dozens and dozens of the same boat with the same configuration and you've dialed in the ones in the past with a logger then you could maybe get away without one but on something high end Id still have one on there. The amount of things we have found to be helpful through the data or caught from going wrong, or caught a failure before it happened are incredible, my logger has paid for itself many many times. When working on something sort of new or a new combination its a must have. With the Placecraft we really struggled with it in the beginning, data was a huge part of that boat just to get it going down the track and we still check it after each run wether its just to make sure everything is nice and healthy or to see what a specific change did. We are still fighting the intake pressure on the low side with it, its abnormally low for example and there a donzen other things Id like to try and make better once we get the basics dialed, all will be done through data.

    My logger is always in the boat, if the ignition is on, its on and logging data if the pump is pumping water. Even when the boats setup perfect you still want it in there at all times. The data is still useful to see your still getting correct pressures, RPM is also a HUGE piece of information for racing, lets you know when your down on power from bad air or lets you know the thing is doing good from killer air, also a great way to know if maybe something is wrong in your engine. We really rely on vacuum readings with our drysumps or vac pumps, a sudden loss of vacuuum is not good and could mean ring seal went away. You can even see a bad tune up in vacuum, especially useful with n20 stuff.

    Some of the things Ive seen the new Quikdata 2 do at the last few boat races are incredible, its not just a logger, we started using it to turn things on and off at certain pressure etc. GPS is on the boat and lots of other stuff thats still being developed Im not positive I can talk about becasue it may never take off, over all its a pretty neat unit, putting one on mine. Quikdata 1 was and is still a great unit but is beyond old school software and is now obsolete from my understanding unless you land a good used unit, those do work good and do the job but after working with quikdata 2 Ill never go back, ever. When Im racing I need something that transfers faster, its just too slow anymore. There will be a learning curve and it certainly does help to know your way around a computer a little bit but with a little patience you will love it.

    There is so much to the loggers, hope that helps a little bit. If you have any more specific questions just ask, no problem.

    Chris

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    Senior Member HomeBlown57's Avatar
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    I have a more specific question.

    Quote Originally Posted by HomeBlown57 View Post
    What numbers are good and bad? What are we looking to get from the data?

    I have taps at 2 O'clock and 5 O'clock on the pump suction housing. But I don't know what good numbers are.

    If I were to tap the droop, what numbers would I be looking for?

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    I'm No Expert Shaun's Avatar
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    I've looked at loggers over and over again. It seams like most of the jet guys use the Quikdata unit but i've heard and read some really good things about the racepak units. Not only that but it seams like most of the NHRA guys seam to use them too. Anybody have any experience between the two?

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    Senior Member bp298's Avatar
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    Quote Originally Posted by Shaun View Post
    I've looked at loggers over and over again. It seams like most of the jet guys use the Quikdata unit but i've heard and read some really good things about the racepak units. Not only that but it seams like most of the NHRA guys seam to use them too. Anybody have any experience between the two?
    racepak is a great product. we had one 11-12 years ago. worked great. but it's pricy. back then, for basic jet tuning, a basic QD setup from mpd was much more cost effective and affordable. both products have continued to improve over the years. while i've added a few things, i still use the same system i've had for 10 years. it's just a matter of deciding what data a person wants or needs, and doing due diligence in making their choice. either way, it's important to have a system that timesynchs everything. without that attribute (both racepak and qd timesynch everything), you're making assumptions.

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