My NEW Alternator is a piece of art. I tour DC Power.

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Rob Dahm

پیش ماه

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Geovanny Torres
Geovanny Torres پیش 3 روز
Can you guys make wheel spacers
WeAreWatching Yu
WeAreWatching Yu پیش 9 روز
So these are great for sound systems as well?
Mechanically Creative
Mechanically Creative پیش 12 روز
I run 48v in my hot wheels without an alternator, what now.
Osarum Obasanjo
Osarum Obasanjo پیش 15 روز
Best wishes from Barbados!!!!
Scypheroth پیش 16 روز
i seen a fat ninja in the back!
Don K
Don K پیش 18 روز
Wow that's kool am new to this company and advantages of efficient alternators.Its amps at high rpm nd idle. Brillant! They are alternator tuners. Awsome
DkingE39 پیش 23 روز
Yooo shout out to dc power. I love when I see experts that love what they do and talk about what they do and explain so well.
TWENTY B پیش 23 روز
How do i contact these guys to get a new alternator for my rx7?
Jim Daniel
Jim Daniel پیش 25 روز
Thanks, that was so informative!
Bda Bnd
Bda Bnd پیش 26 روز
Probably a bigger alternator will do but if you keep seeing weird electrical issues, look into grounding and noise filters.
Bda Bnd
Bda Bnd پیش 26 روز
Harmonics at the right frequency can through superposition cause your voltage and current to vary drastically just by the effect
Bda Bnd
Bda Bnd پیش 26 روز
Semiconductor switching devices produce significant harmonic voltages as they abruptly chop voltage waveforms during their transition between conducting and cutoff states. Inverter circuits are notorious for producing harmonics, and are in widespread use today. An adjustable-speed motor drive is one application that makes use of inverter circuits, often using pulse width modulation (PWM) synthesis to produce the AC output voltage. Various synthesis methods produce different harmonic spectra. Regardless of the method used to produce an AC output voltage from a DC input voltage, harmonics will be present on both sides of the inverter and must often be mitigated.
Bda Bnd
Bda Bnd پیش 26 روز
Rob, I posted links for you on this subject. If you don't think it's relevant, consider the keywords mentioned, 3rd harmonic is most significant. Well your engine fires 3 times per rotor revolution. Other keywords, rectifiers(alternator), transformer(ignition coil), capacitors(msd boxes and cabling), generators(alternator), DC supply rails etc. Your probably thinking I'm nuts but I'm not joking. You might have to break out an oscilloscope or contact a lead engineer at MSD for assistance. Solution might be simple as installing some filters, mods to your casebook cablingand grounding. But your engine has alot going on electrically compared to the average piston engine. Also rotary engines are notorious for particularly powerful "harmonics"at high rpms which have been known to "sheer housing bolts"
Bda Bnd
Bda Bnd پیش 26 روز
Bda Bnd
Bda Bnd پیش 26 روز
Bda Bnd
Bda Bnd پیش 26 روز
You might be getting weird harmonic voltage spikes in your electrical system due to all the capacitive discharge digital msd boxes which do multi sparks, which cuts in and out at different RPMs, also keep in mind you have 8 of those MSD boxes and 8 ignition coils, plus I dunno how many fuel injectors that are digitally pulsed with varying frequency and duty cycles. This is a common problem seen with digital ac motor speed controllers aka VFD Drives. They use digital circuits to pulse high voltage DC at varying frequency and duty cycle up create artificial sign waves to drive. AC motors with variable speeds. The harmonics created on the power lines can disrupt computers and other electronics if the harmonics are not dampened out or by filters or properly engineered cabling. Cable length and terminations play a. big role.
Bda Bnd
Bda Bnd پیش 26 روز
The internal components are Japanese, of the shelf windings etc
Bda Bnd
Bda Bnd پیش 26 روز
Rob, your battery provides extra amperage under full throttle and also you can add stiffening capacitors like people do with big audio subwoofer amplifiers
Bda Bnd
Bda Bnd پیش 26 روز
Some guys have their electric radiator fans shutoff at him full throttle to reduce alternator losses and current draw on the system. Usually you have good airflow at full throttle and you rarely are full load with zero speed
Bda Bnd
Bda Bnd پیش 26 روز
I guess 12 figures is widget because your alternator has 6 phases instead of the usual 3 phases, OR, you paralleled 4 diodes pretty phase to increase current capacity. Diodes have a standard voltage drop and once in forward bias conducting. It doesn't change much with amperage or temperature
Bda Bnd
Bda Bnd پیش 26 روز
Many old drag cars had no battery, many sprint cars today have no battery, they rink magneto ignition/distributors that are self powered, they generate their own voltage and energy with a small generator inside the distributor. That's why you notice then push starting sprint cars when they stall on the track
Bda Bnd
Bda Bnd پیش 26 روز
Austin Wright
Austin Wright پیش 26 روز
I’ve never said this but that is one Beautiful alternator
Martin Dinner
Martin Dinner پیش 27 روز
Doesn't run without an alternator… Let me introduce you to this crazy contraption called a Magneto.
Njabzillah پیش 27 روز
as someone with knowledge of alternators, i just wanna say he has built a good alt but his explanation behind it is shit... its sounds like an "its too technical for you to understand" explanation. that is a three-phase alt with full-wave rectifier at the load end of the alt for dc conversion. plain and muhfucken simple... you can't really make what I just described so go buy it from them =P
Raymond Mccloud
Raymond Mccloud پیش 27 روز
I prefer Mechman, but that has to do with them being local. Either way dc, Mechman, there's also Ohio generator as well, all 3 are great. we use these in high amperage car audio applications. 12, and 16 volts in car powering many amps, charging bats, lights, head unit, processors, etc.
Dank Nermal
Dank Nermal پیش 27 روز
6:25 that OCD mid convo 😭
Joeyzoom پیش 27 روز
The alternator expert sounds exactly like Neil Degrasse Tyson.
zQwas پیش 28 روز
HaHA I’m stoned too man 😎
Edward Satkevich
Edward Satkevich پیش 28 روز
I just wanna say thank you, I've been a fan for about a year now and I've learned so much from you and you're oppeness to learning things yourself. Keep doing what you're doing it's appreciated to the fullest! Can't wait to see the 4 rotor in final form!
Mythix پیش 28 روز
Why is there no name, shout out or link to this alternator company? I wanna order one
Martin Dinner
Martin Dinner پیش 27 روز
@Mythix no worries!
Mythix پیش 27 روز
@Martin Dinner hahaha!! Yeah, man. The title is chopped off on my phone. Thanks for that!
Martin Dinner
Martin Dinner پیش 27 روز
Are we being sarcastic, or did you miss the second half of the title?
Brent Johnson
Brent Johnson پیش 29 روز
Rob where is my signed shirt..???
Titan mukungurutse
Titan mukungurutse پیش ماه
Look at injectors like electric motors the biggger they are the more current they use.
Ken Leach
Ken Leach پیش ماه
Geek 😎
BeFaLcon 94
BeFaLcon 94 پیش ماه
Ok so this is somewhat unrelated to the video. But at 3:40 i say the logo on the CNC and was like wait that looks like the HAAS logo from F1. I knew of the founder of the HAAS team how he has a NASCAR team. Didnt know where the dude got the money from. :D
honorcode3 پیش ماه
When will the RX-7 be completed? Sending good vibes your way and hoping you get the car on the street soon. Really wanna see her run.
MrKosiepoephol پیش ماه
"it's all done here inhouse" with japanese parts...and the numbers are questionable to say the least. 300 amps on an aircooled rectifier with a 8mm battery me sceptical
Gio Dezera
Gio Dezera پیش ماه
DAMN , I geeked out hard on this, I love this shit. That dude knows his stuff! 🤙
Robyn D
Robyn D پیش ماه
Surprised he didn't include " on the turbo 4 rotor awd " in the title.
Adrian Zavala
Adrian Zavala پیش ماه
youtube is getting too damn comfortable with these double ads but i’ll watch them for support 😂
nuttanick premboon
nuttanick premboon پیش ماه
Go for MECHMAN Alternator if you want the best.
Kevin xiphos
Kevin xiphos پیش ماه
I'm just wondering, you're not afraid of instability due your signature on the pulley? I know it's maybe like around 1 gram. Due higher rev's / speeds is more weight.
TurboAcki پیش ماه
No free run?
Rafeeky پیش ماه
Rob you said every 1 to 2 days! It has been like 2 days and more then an hour!! :,( Jk your amazing
casemodder89 پیش ماه
I'd bridge the sense wire to battery positive. Bcs you want 14,7 at the BATTERY to charge it sufficiently. Run big wires positive from alt to battery, battery to fusebox + starter. Negative from engine block or bracket that attaches to the alt and bolt it down to a strong bar/tube on the chassis. And the voltage drop on upshifts results from dropping engine + alternator RPM's. the field current is set to put out for ex. 14,7V @ 12000 alternator RPM's. After upshift the RPM's drop to like 8000 and the regulator has to adjust the field current higher to suit it for lower RPM's @ still 14,7V. That reaction takes some time. Best way to filter these dips is a LiFePo4 battery of around 20Ah for a lead acid /AGM delete. But LiFePo4 batteries cant take more then 14,6 volts short periods or 14,4V long term. There are even ready made high quality LiFePo4 starter batteries in a carbon fiber case wit bluetooth disabeling/enabeling, external emergency cut of wire from company called LiteBlox @LiteBlox .
Brian T
Brian T پیش ماه
You can run a car without an alternator it's just a question of how long the battery lasts
prancstaman پیش ماه
Yah, there OK.
goget'em188 پیش ماه
thx bobby-4-rotor
boltonky پیش ماه
Great video and nice intercooler core looks like the one im running as a radiator on my FZR1000 buggy (lets not discuss that the intercooler cost half what i paid for the bottom end rebuild on the motor)....and wonder how long before we get new starter tech that keeps up with quality alternators now available.
Kinslayer Gaming
Kinslayer Gaming پیش ماه
Can they make totally custom alternators, i need a 180 to 200 amp alternator for an obscure car
ilaril پیش ماه
I love how I learn new stuff from your videos!
Wind of change
Wind of change پیش ماه
Even his alternator has to be a custom billet piece bahaha
David Taylor
David Taylor پیش ماه
Knowledge is power! That blokes knowledge and passion is amazing. Love it!
Joseph Clements
Joseph Clements پیش ماه
Thanks Ron that place ROCKS. Can you post there website for us.
Trevor Leonard
Trevor Leonard پیش ماه
Wow crazy science. Who knew? Very kool vid Rob thanks for this one learned a bunch!!!
wert freund
wert freund پیش ماه
You look really tired Rob! Even if Your excited get at least 6h comfortable sleep! 5" Cold foam matrace in the workshop !doesn't help if You make mistakes cause You're tired! ☝️😉
weston graham
weston graham پیش ماه
I was having voltage issues on my Miata interesting enough Rx7 alternators bolt right upto miatas and has helped my situation but those alternators are next level!
Dan W
Dan W پیش ماه
Those guys build some amazing alternators. I was really impressed with the Denso 6 phase stators.😉 A *LOT* more output in the same space as a normal 3 phase stator. I'm kind of curious how much horsepower it takes to drive one of those at full rated output? (i.e. 320 amps) Pretty cool tech there, and very nice machine work!!😁👍
Dan W
Dan W پیش ماه
@Chris Hull Just for grins.. I used to have a 'boost pack' that I built years ago that had a 5hp. Briggs & Stratton driving a 60 amp internally regulated GM Delco 10si alternator. It took everything that engine had to maintain 13.8 v @ 50 amps!😉 (most likely due to inefficiencies in the alternator itself)
Chris Hull
Chris Hull پیش ماه
P = Current x Voltage. 1HP = 0.7457 KWatt 745 Watt at 12V = 62 AMPs 745 Watt at 15V = 50 AMPs So 1 to 4 HP would be be delivered to the battery/bus and 1 to 2 HP in less than idea efficiency/mechanical losses.
Timothy Warehime
Timothy Warehime پیش ماه
american made!!!! love it!
Marko343 پیش ماه
I think a lot of us learned a bunch of new info from this guy. Seems like a awesome company.
Patrik Paller
Patrik Paller پیش ماه
Now thats a nice turbo mate
Rasmus Skou
Rasmus Skou پیش ماه
165x65x14 is the most common tire size in Europe 🥳
Kombi Nation
Kombi Nation پیش ماه
you explane everything so great... and i think your very helpful .....
Anthony Avila
Anthony Avila پیش ماه
I could listen to you two talk all that technical stuff for the whole video. I love the informative videos.
wickedtoast پیش ماه
you know hes a rotary guy when hes got a shop full of cars but none of them run long enough so he has to get a honda commuter. lol...
That Dude
That Dude پیش ماه
I feel a law suite coming from that show how it’s made 😂
ThatSlow86 پیش ماه
Never have I ever wanted a fucking alternator so fucking bad..
iPlay4K aka iPlay8K - 4K, 8K,16K - UHDking
iPlay4K aka iPlay8K - 4K, 8K,16K - UHDking پیش ماه
Hey, Rob as again, I think that you worth much more than just RX7. As soon as we start playing the games- we are ready to colonize Mars through drones machines controlled from Earth developed by our brilliant IT department... Let me know if you are building some IT team in your office because I want to be involved (come with software developer portfolio)... Let start developing some technology... let's do the next Elon Musk thing... Let's employ tones of people and innovate???!!! Remember Rob that you probably should already have AI (Artificial Intelligence) department because it is the future of everything including the art and cars???!!!
Jonathan Weis / Jonathan's Automotive Repair
Jonathan Weis / Jonathan's Automotive Repair پیش ماه
Rob, at 10,000 rpm your alternator is spinning depending on your crazy overdrive ratio 40 to 80k. The joke is most alternators generate max power at 2000 to 3000 (alternator rotor) rpm. Meaning its all wasted rpm, power robbing inertia spinning that slug is foolish. DC power should have a dyno sheet showing voltage & amps at various rpm outputs.
Burd Daddy
Burd Daddy پیش ماه
I Inspire 2 be like Rob Damn! Alternator & ALL ....
Mylo Crawford
Mylo Crawford پیش ماه
This reminds me of the science channel and how it’s made series
Darnell Johnson
Darnell Johnson پیش ماه
If you're in the car audio world you know they make top notch alternators.
thatsupraguy33 پیش ماه
Was that an.....outro??!!
matthew anderson
matthew anderson پیش ماه
They should have put a Dorito shaped pulley
mikeyjock پیش ماه
this video just sold me on DC power alternators. I run ford diesels at work and play
kai dragon
kai dragon پیش ماه
My question now is music, can these alternators keep up with amplifiers if matched properly? I know bass amps fraw some serious current when more lower notes are played,, but if yes, then I'll be ordering one soon
iiNgONYaMa پیش ماه
@rob dahm which brand 2ga do you have. I need true ocd 2ga wire
Faizan Farooq
Faizan Farooq پیش ماه
This is the company I ordered the uprated Alternator for my RB26 FREAKING LEGIT!
Anthony Risen
Anthony Risen پیش ماه
Beautiful a HAAS Machine! Great deals right now.
Trenton Reese
Trenton Reese پیش ماه
Homie at DC that was talking sounds a little like Neil Degrasse Tyson lmao, sick place though
Sam Fedorka
Sam Fedorka پیش ماه
The three phase full wave rectifier circuit has 6 diodes, but I see that the alternator often has three more to form a half-wave rectifier for the field winding (these will be much smaller). The only thing I can think of for using 12 diodes for the FW rectifier is to spread the heat load around. You'll have more diode capacitance, but that's likely not an issue in this application. Of course if they're going through that much trouble, why not use SCRs or ideal diodes? You'll get much better efficiency. Probably it's too hard to protect the mosfets in the ideal diode circuit from the transients. I found a patent US6731081 (assigned to Denso) about this that uses SBDs and mosfets which (among other things) have lower voltage drop (and heat) than your standard silicon diodes.
Alex Simz
Alex Simz پیش ماه
Good lesson Anthony, solid guy.
ZiFFA پیش ماه
i can count the frame on this video
Scott Marks
Scott Marks پیش ماه
Dc is on point. Clearly experts in a field and able to explain it very easily.
soundautomatic1 پیش ماه
What an awesome company and a drop dead gorgeous part
Ronnie Williz
Ronnie Williz پیش ماه
Yes 16v starters are used alot on mega trucks as well so 16v is becoming common with alot of high horse power engines.
Mo Olsson
Mo Olsson پیش ماه
Think it will beat a Tesla S?
OB1 پیش ماه
Lol, I swiped passed and swear I saw ”my new alternator is a pos”
Kenji پیش ماه
time to slap one of these badboys on my $700 86 stanza
Dave Tires
Dave Tires پیش ماه
GREAT VLOG ROB👍🤓🇺🇸 Keep ‘em coming
ontor das
ontor das پیش ماه
I do not owe anybody anymore with the help of, *p a i d t o b e h o m e .c o m*
tyler paul
tyler paul پیش ماه
technically that is a generator from the amount of volts it puts out plus its DC
kumbia پیش ماه
I the vids bro and i might be hitting them up for one for my system
Garrett Schmidt
Garrett Schmidt پیش ماه
My car runs 155/80r/12 tires
William Crowell
William Crowell پیش ماه
There are batteries that actually run both 12/16V where you only need the regular 12v charging system but connect the 16v side to the starter so it spins faster and helps start the engine faster. The guys over at Team boosted used one in their one rotor roadster (those guys are fans of yours)
Andrew Bloniarz
Andrew Bloniarz پیش ماه
Ur such a nerd bro 😂 Which translates into this beast build
Alec Albain
Alec Albain پیش ماه
16 yo speaking from your home town, PLEASE COME DO SOMETHING SPECIAL IN MONROE WE WANT TO SEE THE 4 ROTOR!!!! Me and a bunch of my buddies are huge fans, and we would love to see you visit some time soon at an event or something like that. If you even get to read this thanks for taking time out of your day to do so, WE LOVE THE CARS, keep it up please, we all love watching. Thanks! -Alec A.
Malice min
Malice min پیش ماه
cant wait to see the new dyno numbers
Asia Assist
Asia Assist پیش ماه
I didn't see the stator, or wire cage being wound do they import these, Japan? I take it these have to be brushed syatens also? I am thinking this would be an issue at high RPM especially for long periods. Since they don't cast and you didn't mention pricing they must be expensive. Measuring currents in the right places to see where the losses really are might have saved you purchasing. Or maybe you already did that right? Or it just becomes a band aid solution.
GMajor100 پیش ماه
That B roll is a piece of art 💥💥💥💥
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