Motion Raceworks
Region: US
Sunday 12 July 2026 13:14:52 GMT
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Bryan Powell641 :
lol, I am in audio, I want mine to spin faster.
2026-07-12 21:15:24
141
i_am_nobody069 :
The alternator is designed to operate at a certain RPM even at idle.
2026-07-12 23:15:08
200
Hemimopar43 :
perfect for burnout cars
2026-07-15 13:43:46
0
0️⃣3️⃣ FILMS :
Im into car Audio, I need mine it be faster😭🙏
2026-07-15 05:05:37
2
joj :
wouldn't this change your belt size lol
2026-07-13 19:29:19
22
Woodashooda :
Ok people, alternators have voltage regulators. The voltage regulator monitors the output, in most cars is 12v. If the alternator is spinning slowly, the regulator increases the voltage to the windings which increases the strength of the magnetic field which allows the alternator to generate the required voltage. If the alternator is spinning fast, it decreases the voltage to the field because the armature is cutting through the magnetic lines of flux at a faster rate and generates more voltage. Nearly all of them have both over and under voltage protection. If the alternator in question was designed for a car that maxes at 5000rpm and you are regularly using it at over 5000rpm, then a larger pulley will help stabilize the high side voltage.
2026-07-13 20:13:41
19
BIG KEV :
Pretty stupid idea
2026-07-13 04:38:46
6
Vijay Singh :
only make sense if the belt is connected to the alternator and the crankshaft pulley alone only then it with get a different in ratio
2026-07-14 23:40:55
1
down2earth :
Bigger pulley less amp out put
2026-07-13 01:06:36
2
Poppy :
This video really brought out the experts. I have a drag car with an alternator. It doesn’t have ac, radio or phone chargers. It just needs 12 plus volts going down the track. Oh by the way mine has a 5 inch pulley.
2026-07-13 06:05:29
2
Manny_Cuhh :
Can I just run one because it looks good on my stock truck?
2026-07-12 13:37:31
32
ger,A :
I rather put a smaller pulley & keep electronic components happier. Like fuel pump the injectors the computer stuff like that
2026-07-15 01:27:34
1
Ukasha Safi :
dows it increas rpm
2026-07-14 12:52:29
0
️ :
I thought bigger pulley faster
2026-07-12 16:17:52
1
Akeem :
But why!!!
2026-07-13 22:43:15
0
Sora Folf :
we used to call these "underdrive pulleys". were more necessary when you changed the crank pulley size
2026-07-14 14:41:11
2
Casey or case for short :
Less inertia!
2026-07-12 20:41:11
0
Showcase :
now its lower amps
2026-07-13 04:18:18
1
byw.byw :
have I increased my rev limiter? no? then leave it alone.
2026-07-12 16:14:23
9
cameronscottjones :
less air flow though. how would it stay in an effective temperature for an endurance race??
2026-07-14 04:08:12
1
kenny :
don't do it, just don't
2026-07-14 13:37:33
1
LUCERO :
Does it come with white walls?
2026-07-14 02:55:35
1
user1457018336581 :
less amperage tho
2026-07-12 16:27:21
1
ToplessRedG37 :
Low voltage codes in any modern CANBUS driven vehicle.
2026-07-12 22:21:36
4
Lance :
Why?
2026-07-12 21:50:08
0
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