32" hotr 90+mph

[m4a1usr]

How do you know? Do you have a part number of the FETs? I would like to know the number to see it's rating personally, thanks!

Your quite right Ray. The SeaKing and Turnigy 180 use 4833N FET's. Rated to 30v max. Since FET's are are the weakest link in our speedos taking them close to max voltage gate would not be too smart since I doubt anyone will derate the max operating current because they dont know how to do wattage calculations?

The logic being lets put 25 volts and 200 amps and see how it performs. Yeah thats going to work. Heres the data sheet. http://pdf1.alldatasheet.com/datashe...TMFS4833N.html

John

[TotalPackage]

Your quite right Ray. The SeaKing and Turnigy 180 use 4833N FET's. Rated to 30v max. Since FET's are are the weakest link in our speedos taking them close to max voltage gate would not be too smart since I doubt anyone will derate the max operating current because they dont know how to do wattage calculations?

The logic being lets put 25 volts and 200 amps and see how it performs. Yeah thats going to work. Heres the data sheet. http://pdf1.alldatasheet.com/datashe...TMFS4833N.html

John

Yes 30 volts is right at 7 s so as I said they rate the esc's below the full capacity of the fets 7.14 s to be exact a little over 7 s

How do you think mikes doing it
The 6 s rating is about 84 percent of what the fet can do between 80 and 90 percent is typical .Well at least you have a spec sheet now free of shipping good luck with your experiments

[Jacked1]

I think it would be sweet if someone made an esc especially for diyers that came with no fets or caps and you put on your own and had a separate voltage input for the control circuit. So the gate signal would always be the same so you could have 200V fets or 20V fets and the controller wouldn't know the difference.

[TotalPackage]

I think it would be sweet if someone made an esc especially for diyers that came with no fets or caps and you put on your own and had a separate voltage input for the control circuit. So the gate signal would always be the same but the but you could have 200V fets or 20V fets and the controller wouldn't know the difference.

Jaked your in the same school of study as me you make one like I am but we can move that discussion to off topic. I look at diy electric cars that a good place for info on esc's as they run upwards of 120 volts @ 700 amps


Note: those amp ratings on fets arent real world they are package limited!read the fine print
It's more to it than that. u have to consider gate capacitance and if the fet drivers can push the fets properly this has to be calculated. If you reversed engineered and esc you could make your own bridge for it but making one from scratch is not much more work. The code on your comercial esc is a another story entirely some of the manus scratch the numbers off so you have no chance of finding the isp port

[keithbradley]

I think its good to talk about things like this and let guys look at things from a different direction.

Absolutely!

There are a few who aren't mature enough to share opinions and a few who are too dumb/stubborn to know they can still learn from others (and a few who seem to prefer to wear their cheerleader uniform and just pretend they know what they are talking about, but thats a different story)...but I think most of us on here are grown up enough to have discussions and/or debates without taking our toys and going home.

Im always looking to share thoughts and I respect those who can do the same. There are some great people on this website and intelligent discussion is always of value.

[TotalPackage]

Howard hit me up when you get an update.

Yes you can really tell when someones just running there mouth versus giving real helpful info alot of that goes on here.Some even act like they are helping a man thats already faster to boost their credibility but "WE" can see right through it.

Let plumbers plumb let engineers engineer and let talkers talk just not here on howards thread so Howard when you get an update holla at me

[m4a1usr]

How do you think mikes doing it

I dont know what that means? A recommendation from a previous post? I have not read thru all 17 pages of this thread. I liked your challenge taking on the active cannard issue since you appear sincere but your becoming very confusing lately in your posts. Even Steve has had to edit your comments No one is getting offensive, posturing or proclaiming anything. Simple opinions are being stated and some amount of experience. Thats what we do here is share. Dont want to listen or learn? Then dont. But getting defensive? What does that prove? Your right and everyone else is wrong?

This has turned into one of the weirdest threads of all time. Danny, you might be right. This one is close to being done.

John

[6sHyper]

I dont know what that means? A recommendation from a previous post? I have not read thru all 17 pages of this thread. I liked your challenge taking on the active cannard issue since you appear sincere but your becoming very confusing lately in your posts. Even Steve has had to edit your comments No one is getting offensive, posturing or proclaiming anything. Simple opinions are being stated and some amount of experience. Thats what we do here is share. Dont want to listen or learn? Then dont. But getting defensive? What does that prove? Your right and everyone else is wrong?

This has turned into one of the weirdest threads of all time. Danny, you might be right. This one is close to being done.

John

Dont worry your not the only one , i'm pretty sure theres a couple screws missing somewhere???

[rearwheelin]

My corvette has all the bolt ons and is very fast i got to 183 and it was still pulling.

Back to drive shafts if want to get technical about it. It comes down to torque and hp. The longer the drive shaft the more torque will be lost. As the load increases the clearance between the shaft and the tubing will change. If your shaft has a slightly tight fit it will only get tighter as the load increases. When there is a bend in a shaft it will also cause some power difference. There is more resistance at the bend. I think its good to talk about things like this and let guys look at things from a different direction.

Has anyone run a 1527 1.5D on 10s? But mike. My motor mount is built and shipped. I will be setting up the new 32 and was wondering what S to go with.

Howard wants to talk about drive shafts guys ! There are many diffrent types of drives right ? Wich is best ? What will put the most power to the prop , what type will be hard on a motor , wich have less drag , wich have less rotating mass , what type has gone the fastest , liner or no liner , .150 or .187 , ........................... the truth is they all can work good...... I have a prefrance to a style of drive that happens to be un popular, but it works for me ! I cant see the logic in thrusting with the motor.....Does a drag boat , car , comercial vehicle, dragster or a jeep thrust with its driveline ? I bet all these vehicles or vessil would handle diffrently and break more often if they did.... This is all the thought i need to justify the type of drive that i use.

[TotalPackage]

John howard doesnt listen to you anyway so whats your point . No arguments but when it comes to esc's I know what im talking about . Dont YOU or your crew be ofended when someone else is talking or doesnt accept your gospel. I mean your point was? about esc's It certainly didnt prove me wrong in fact in helped me even though that wasnt your intention lol. "You dont know what it means" Let me help you. If 6 s was the max of the fets mike could not have run 7 ok? Like howard said at the begining of this thread. If you want to know something ask dont try to be a smart ass. As far as my active canard the more you talk and say it cannot be done the more foolish you look when it works. TRUST me I dont lose any sleep over what you have to say or really care. The facts are as they are esc manufacturers dont run the fets at 100 percent period. You can get off track all you want but Im right so anyone with common sense can just accept the truth no matter the source. See; you need the source to be one of your friends lol.

Rear I agree with you but you can look and see Howard was who I was addressing he asked me about mike I gave him my opinion. Ray asked me HOW I know not cause he was needing my help but to say indirectly i didnt know what i was talking about but he was wrong so the click started choppin but Im still right it is what it is. They want people to worship them for knowledge they can get out of a book themsleves. I do not. Im one of straight talk without all the videos and refrences to cheerleaders so when they talk the should take a look in the mirror first.The tangent Im on now is theirs not mine. I was done at telling ray how the esc's work. Go back in this thread wasnt it YOU(JOHN) arguing about the function of a gps? wasnt it me that defended you? so please pick your sides and stay on them. John trust me I dont need you to have my back on anything books and knowledge will take care of me everytime. Isnt what this whole thread is about? go back and see who were the "experts" saying"YOU CANT DO 90 +" coz of this that and the 3rd all these experts lol. He did it like pie. . The same ones that talked about the man are the same ones on his thread calling themsleves giving him advice . Its too funny. But guess who gave him support from day 1? Me coz I knew from 20 years experience that some of you think if YOU cant do it no one else can. You cant limit someone to YOUR own abilities. Trust me the mans not listening to you you already showed him what you know about a 90+ mph hotr cat just like me absolutely nothing so do like I do sit a learn and stop thinking youre teaching somebody something coz you are not.

Steve? hes a great guy and fair thats why he moves not just my threads but all the dumb ones like "TP an rc boater" lol. I know the rules and I follow them. You should too it clearly states that ad hominem attacks are against the rules.And this again is WAY off topic so I hope he moves it too and when howard asks ME another question that I be allowed to answer it with a technically sound answer.Its so funny coz the tru gurus on this site never open their mouth and when they do they are always friendly oddly enough.

This:The logic being lets put 25 volts and 200 amps and see how it performs. Yeah thats going to work. Heres the data sheet. http://pdf1.alldatasheet.com/datashe...TMFS4833N.html

is definately not the logic of an engineer as the t180 cannot handle 200 amps continuously and you wont get an esc for its price that can. Thats why I reccomend all boaters to learn for themselves and read coz you get led astray simply coz someone wants to disprove a member . Engineers dont say "lets see" they design simulate then build they have a good idea on paper what "It will do" before building it.

So at that im done you can talk till youre blue in the face youre wasting my time and this thread so Rear go on and ask your questions about drivelines . These boys aint doing nothing but what they do best "HATIN" lol.

[francthomas_31]

howard, il wait for ur pics. please send it as soon as possible. thank you, dude.

[Simon.O.]

Engineers dont say "lets see" they design simulate then build they have a good idea on paper what "It will do" before build it.
.

Engineers may not say "lets see" at the start but after all the calculations and simulation there is also a time when WE test things to destruction to see if the actual figures stack up. If so then our formulae are proven if not then we revist the formula or the QC of the product.

Just a little bit from the deep south of the world

[TotalPackage]

Anyway Howard whats up this guy comes saying nothing that changes anything . If youre an EE then you know how esc's are designed so if you want to argue with fact go ahead.Your wasting the threads time. Nothing you say means anything to me so stop wasting your time no one is listening. In fact Im done even countering you coz you make real fools out of yoursleves. Testing things to destrtuction has nothing to do with what were talking about here or just saying "lets see " and slapping something together.The more you sit here and argue with fact the sillier and less reliable you look as a source for info. Question? are the fets in a 180 rated higher than the esc itself the answer yes. Period ! Just accept the truth and get a life. Wow! Between the 3 of you you have close to 3000 one has over 1200 by himself post I have 598 can anyone else talk besides you all and you not get offended? LOL Anyway go on make a fool of yourself. I wouldnt even want to see how many of them were slamming other ideas or boats. If you choose to be reprimanded daily by the modders be my guest but they have better things to do than regulate grown men. Im one so if you need to be a child do that but im done . I know you want the intelligence to come from a certain place. Hate on lol.Later I got a lady to attend to.Man im stupid coz I waste my time explaining anything to you when your as irrelevant to me as a piece of gum on my shoes just hanging around nagging me.

[keithbradley]

Howard wants to talk about drive shafts guys ! There are many diffrent types of drives right ? Wich is best ? What will put the most power to the prop , what type will be hard on a motor , wich have less drag , wich have less rotating mass , what type has gone the fastest , liner or no liner , .150 or .187 , ........................... the truth is they all can work good...... I have a prefrance to a style of drive that happens to be un popular, but it works for me ! I cant see the logic in thrusting with the motor.....Does a drag boat , car , comercial vehicle, dragster or a jeep thrust with its driveline ? I bet all these vehicles or vessil would handle diffrently and break more often if they did.... This is all the thought i need to justify the type of drive that i use.

So what is your belief? Do you like the two piece drives with the seperate shaft and square drives? I remember reading some discussion about this in one of your threads but I dont remember what you like to use. I know its thrusting at the transom but with what setup?

TP-
I think if you are going to continue your version of calling people out in every thread you participate in, you should use names instead of generalizations. Your posts are way too confusing and rambling for anyone to know who or what you are actually refering to.
And who exactly is the "We" you keep including yourself in? I don't know who you are including when you are talking about how you feel and seem to be representing someone else. We (me, Jessica Alba, and the car from knight rider) are starting to get confused

[TotalPackage]

1200 plus post damn he did over a 100 just last night. Howard I bet you cant do a 100 before he post 1400 lol. Ready set GO! and there off lol