We may laugh and make jokes, but the guy won two World Championships. Must have a word with my new best friend Fredde.
SPEED
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 Robert Daniel |
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Posts: 183 (11/28/08 09:09:17) |
Last Edited By: Robert Daniel
11/29/08 15:11:04.
Edited 1 times.
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michael a lawson |
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Posts: 3 (11/29/08 04:14:19) |
Why is it, peaple are more concerned with speed, rather than lap times?
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Andras |
telemetry | ||
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Posts: 18 (11/29/08 11:41:22) |
I guess top speed will always be an important data and with a gps quite easy to recall, but I'm also trying to find out when the boat actually gets there.
Average speed over a few laps is something we can also measure with the simple gps gadgets, but the ultimate solution has to be telemetry. That's the way
to see cornerspeed and how fast the engine gets to full rpm after the corner. I've been experimenting with the Eagle Tree Systems telemetry, but have lots
of trouble with it. Anyone found a better system or the way to use the Eagle Tree thing consistently? Or any other possible solution?
About the secret fuel thing: tell us some hints, or just don't mention it, coz it's unfair:-) Cheers: Andras |
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Dave Marles |
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Posts: 877 (11/29/08 13:36:41) |
Obviously laptimes are what matters. Its easy to fool yourself with GPS or radar speeds but a simple stopwatch check on laptimes is the only way to see if you
have a real improvement for racing. Having said that, measuring speed will show basic improvements so long as you remember that the acceleration up to speed
after the corner is the most important factor in fast laptimes.
Andras, Try transfering the Eagletree data into Excel. Its easier to see the detail in Excel without all the spikes that the Eagletree data usually has.
Dave
Tuning software |
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Robert Daniel |
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Posts: 184 (11/29/08 15:21:42) |
Andras, I tried using eagle tree for measuring rpm and GPS speed on a time base. I put the data into excel but it was pretty useless. I found after a corner
there was a big time difference between a given rpm figure and a gps speed figure. Presumably you get the rpm value sent to your dashboard almost straight
away, but the gps speed has to be worked out by the satellites before it changes. The time delay wasn't consistent. that's my theory anyway.
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BoBoKwok |
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Posts: 718 (11/29/08 16:32:21) |
Lucky that I have put the eagletree aside then
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grahame morgan |
Speed | ||
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Posts: 21 (11/30/08 01:32:58) |
BoBo,
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BoBoKwok |
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Posts: 719 (11/30/08 01:40:15) |
My luck is better.
The eagletree was from my friend. Didn't take my $$$ and space |
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Bart Drieghe |
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Posts: 361 (11/30/08 05:01:45) |
I think that the eagle tree is a nice system but its not easy to understand all the numbers . I've had the intention to buy the GPS for it but got warned
by someone that it wasn't easy to use . But its not worthless because you don't have the gps with it .
You can see how long it takes before your engine has its revs back after a corner , does it really matter then how fast you are going ? The best or most optimal condition to test is a full size course with ALL the bouys and the transponder system , GPS on your boat and eagle tree ( that logs : Steering , throttle , rpm , temp head ) . The full size course gives you a CONSTANT course and its the correct size ( naviga ) , transponder system gives you a CONSTANT checkpoint instead of someone clocking your laps , GPS tells you your maximum speed ( and if you can log those , you can see on the comp what speed you had/have in the corners and such ) and the eagle tree tells you your RPM and the rest . Only using the gps can give you lots of clouds as it only tells you your TOP speed and like already has been said , not your average speed . B
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uros |
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Posts: 3 (11/30/08 06:32:24) |
Hello,
I am priparing my own tellemetry sistem with online parameters (real time) alot faster then eagletree and a lot chiper. Speed will be detected with standard GPS modul and it will be very small and light. The coast will be at least 1/2 of eagletree and it will be more reliable and it will be designed specialy for boat sistems like FSR-V,O. We will test the prototip as soon the weather get normal. After testings I will put some pictures here. If there is anyone interested for that sistem just contact me.
Uros_S.
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Fredde Cederberg |
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Posts: 377 (11/30/08 09:47:22) |
Well think about that, unfair? No no, advantage? Yes."About the secret fuel thing: tell us some hints, or just don't mention it, coz it's unfair:-)" |
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uros |
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Posts: 4 (11/30/08 22:50:44) |
Hello,
That was cinik joke about that fuel Fredde we all know that no one tells the real secret about his speed. As I said we will test this sistem as soon as possible. Reight now we have snow here in Slovenia so it is inpossible and after that I will open new discusion about that inc. fotos and details. Regards
Uros_S.
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henvis |
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Posts: 58 (12/01/08 05:07:53) |
I use radio "Nomadio" in which there is a telemetry. I look temperature, turns of the motor and also speed of the boat by means of GPS.
The higher measured speed of my boat (FSRV-3,5) was 72 km/h at 38 000 1/min But I could not use it in race as speed sharply fell after each turn... I should do more long pipe and only at turns of 34 000 1/min and speed of 64 km/h the boat floated stably. Therefore I agree with Marles, that the best way to measurement speed it to measure time of laps 
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Andras |
eagle tree | ||
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Posts: 19 (12/01/08 10:34:32) |
Well, it seems lots of us have an eage tree for sale, which means high supply, low demand = low market price:-)
So maybe it helps us all if we work together in order to figure out the best way to use it. For me the weak point is the gps unit and I really liked Bart's idea of combining a garmin with the eagle tree, using the logger only for rpm (and let's not forget heat) measuring. This way the dashboard is maybe irrelevant, coz it's easier to examine rpm and heat data afterwards on a laptop. I guess having a Naviga course and an AMB system for practice is something we only dream of, but it's true that this would be the perfect solution. Fredde, I forgot to ask you about the fuel in Leno. Can I do it now? I can write an e-mail, if you want
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uros |
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Posts: 5 (12/01/08 11:08:44) |
Hehehehehehe,
problem of eagle tree is in software of loger soooooooooo.... any GPS unit conect on this loger even GEKO (but it is locked) us usles. Eagle has problem because of bad aprox. calculatink algoritem. And you cen get stange result like 100km/h (max. speed) and it is expencive. I test my sistem driving around with car and it works like perfect , BUT all GPS unit measurment gives starnge results if you make short corners or you doing
short circles. Speed is aprox. value of time and distance.
In corners distance is like half of solid line distance (in the same time) so if we have too slow boat you just make short corners and you are driving with 78km/h maximum speed with your 3,5ccm boat 
It is important for you to know what is real time speed of your boat isn't it? But on the cornes relavant result is RPM specaly if you are driving quick laps.
Uros_S.
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Seb Videmont |
eagle + GPS | ||
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Posts: 12 (12/02/08 08:16:00) |
Hello, as you probably know, I am using the eagle tree system for a long time. I have good relations with eagle. I confirm that it is impossible to use the GPS unit to have one average speed on one or some laps. The GPS unit "lose" the boat after each corner, and it is hard for the unit to find the position on 50 meters. The solution is to use the GPS just for the max speed, at the end of the length for example, or by driving in curve during 1 minute and just do at full speed between 5 and 1. If you have the dashboard, you can use the max value. It is often correct. Less than 0,3 km/h between the speed gun and the GPS. I use the eagle for the rpm, and other standard possibilities. For the speed, I use a speed gun. My eagle is very reliable. I use the soft version 6.21. If you have a problem, contact directly eagle, they will give you one solution. The future : we are doing lobbying to Multiplex. The idea is that with the 2,4 GHz, we can exchange values between the boat and the transmitter. We try to send the rpm, one or 2 temperatures. I hope that MPX will develop this system. Seb |
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Fredde Cederberg |
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Posts: 378 (12/02/08 10:57:43) |
"Fredde, I forgot to ask you about the fuel in Leno. Can I do it now? I can write an e-mail, if you want You can email me if you like 
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XAE Team |
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Posts: 65 (01/09/09 12:01:09) |
Hi all, Fredde used Werks fuel from werks racings. Werks Racing 2814 Aiello Drive Unit B San Jose, CA 95111 408-365-1000 Phone 408-365-1070 Fax
info@werksracing.com http://www.werksracing.com This brand sell car engines and fuel. Don't know who produce
engines.
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Fredde Cederberg |
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Posts: 388 (01/10/09 02:43:07) |
Ahh sombody got his is on
Anyway that is a part of it, I didn't use the plain car fuel, it was modified. |
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XAE Team |
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Posts: 66 (01/10/09 13:55:16) |
Hi Fredde,
If I remember well you had a T-shirt from Werks and a banner on your place. Moreover it was written on fuelcan !!! So, I don't think it's a secret ;-) I know this brand used by car drivers but not so much knowned. I'm curious to know what is your feed back from a reliability point. Ball bearing life time ? etc On car market there are so much different brands of fuel. But with some of them you must change conrod and ball bearing every 2 hours !!! Arnaud |
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