19 replies to this topic

[gatormark]

Which is faster?

[Kevin Donovan]

If you're comparing the PS-4002FK vs. JK Hawk 7, the Pro Slot motor is usually faster.

[Ramcatlarry]

Especially on tracks that have voltages over 13.5 and exceptional heavy wiring. The larger 36D brushes help make more power.

[Jason Holmes]

P/S bad fast and a ton of brakes.

 

jason

[gatormark]

Then why does everyone run Hawk 7 in their race series?

[Pablo]

Not sure which PS motor you mean. PS has a LOT of different motors.

[Eddie Fleming]

Then why does everyone run Hawk 7 in their race series?

 

Because the Hawk 7 is a sealed motor you can put in a car and it will run well almost every time. No what springs or what brushes or blueprinting the brush hoods.

[Dan Ebert]

You should be comparing the Hawk 6 and the Pro Slot FK.    The Hawk 7 is not a good match-up to the FK.  Two different types of motors.

[Danny Zona]

I will say in FL the Hawk 6 or Hawk 7 is used in GTP.

Pretty close in speed from my understanding.

When I raced GPF wing cars I was faster with a Hawk 7 over the Hawk 6.

That was a long time ago though.

[Les Boyd]

Are you sure that the PS is faster than the Hawk 7... the Retro Hawk, yes the PS FK is faster, but I think the Hawk 7 is faster than the PS FK. 

 

And as stated the Hawk 7 is sealed and there is no need to replace the brushes and springs or blueprint the brush hoods. That makes the Hawk 7 much cheaper to use.

[gc4895]

From the JK website, both the Hawk 6 (Neo magnets) and Hawk 7 (sealed motor) are rated at 48,000 rpm, though JK notes the Hawk 7 as "approximately 48,000). Anyone know the RPM rating of the Pro Slot FK?

[Danny Zona]

I believe Hawk 7 is faster then the Pro Slot FK.

I haven't used a Pro Slot FK in a while though.

[Danny Zona]

Not sure which PS motor you mean. PS has a LOT of different motors.

It would help clear things up. Most series run the HR JK. Hawk 7 is only used in GTP in FL.

[Pablo]

This is funny. We still aren't sure exactly which PS motor the OP is even talking about

[MSwiss]

Pablo,

I threw caution to the wind and edited the title to the Pro Slot Mini that is easily their biggest current minimotor seller.

[Ramcatlarry]

PS 4000 shell supports an entire line of motors same as the larger "C" can system.  Go to Mabuchi website for design specs.  The "FK-130" can is actually the  sealed can with internal brushes and the "FC-130" is the snap-in style of the PS 4000 mini .

[Racer36]

Title line says PS 4002FK.....that narrows it down pretty good.

[Danny Zona]

Title line says PS 4002FK.....that narrows it down pretty good.

Im pretty sure it was edited. ☺

[bluecars]

The PS 4002FK has the same specs as the JK HR except stack length and PS has external brushes and springs. Never seen a PS 4002FK as fast as a JK H7.

[MSwiss]

Lap times should be similar, and as alluded to, will probably depend on power.

I think, in this area, the 4002FK is more popular.

Regardless, I think the OP was wondering more why one motor was used more regionally, than another, not if one was a few hundredths faster than the other.

I think he got his answer.

I'm going to close this thread unless he PM's me and has more questions, and wants me to reopen it.