P2K2 Pro 27T Rebuildable Stock

[siv429]

Hey people,

Just wondering if anyone could give me any setup tips for my TB01 with a P2K2 Pro 27T Rebuildable Stock motor in it??(e.g. pinion size etc)

Cheers

Justin

[GPZ1000RX]

Should be OK with the same size pinion as the kit motor. Just keep an eye on the temp for the first few runs, you MAY need to drop a pinion size but I doupt it.

That's the beauty of the 24deg stock, you can just stick em straight in and go, no need to change anything else, just lots more power.

[Lucodeath2]

Who makes this elusive motor?

My LHS is still looking for one.

[mr_pushrod]

It's made by Trinity.

[Jimmy_GT-R]

Hi,

I am running a P2K2 this season, and after the first race yesterday, I can now comment on it during a full race day. I'd say its ok, certainly not the best stock motor for my use. The track I race on is at Stonhaven in Minerwall Park, lovely big 1:5 scale car track. So being this big it need a fast and high RPM motor, think I will go straight back to using a Green Machine 3, it was way quicker on top end than the P2k2, although the P2k2 did have great acceleration out of the hairpin, but I think this one good poit over its many average points for my use and this track isn't a good combination. I do say that on a tight twisty track of for street use, then it would be probably the best stock motor to use.

Thanks

James

[GPZ1000RX]

There you go, Jimmy's got the gen, the P2k is a torquey stock, not a revver, even better for bolting it straight in on standard gears.

[jozza]

PK2K or PK2K Pro are ideally suited to buggies or 4wd touring cars on smaller tracks. It's a torquey motor, and fairly fast. I run one in my Baja Champ with stock pinion, and now also run it in my Mission touring car which I race indoors. It will be happiest with stock gearing or bigger pinions.

For larger tracks with more straights, I'd recommend a Trinity Monster, which is a much higher revving but less torquey motor. I was running one of those in my Mission, but it was not right for the small carpet track where I race, so now it's gone into my Tamiya M03 Mini Cooper. If you use that motor, it works best with smaller pinions than standard.

As with all these motors, to keep them in the best racing condition, make sure the comm is skimmed regularly, and brushes replaced as soon as they chip or wear down a third.

There is some good information at the Trinity site on motors, brushes and how to keep them in tip top condition, in the Tech Tips section .

Lucodeath; you should give your LHS a ribbing about this, the Trinity motors (P2K2, Monster etc) are probably the most famous range of electric motors in the world [] See http://www.teamtrinity.com/motors/stock.asp for more information.

[siv429]

What motor would you suggest for high rpm (stock motor)

Cheers

Justin

[jozza]

I've used the Orion Core and the Trinity Monster for high rev rebuildable stocks. The Cores are very fast, can't remember the dyno figures, but they were rapid! But (and it's a big but), they get very hot, even when they are geared low enough. My preferred fast revs motor is the Trinity Monster, it needs to be geared down a couple of teeth from a normal motor, but it seems to stay a lot cooler.

[siv429]

Cheers jozza! Think i will invest in a carbon chassis and a monster horsepower and try my luck at some racing when i can afford it! Could anyone just lighly brush on skimming for me??

Cheers

Justin

[mud4fun]

Skimming = the act of machining a very tiny amount of the surface of the comm (the copper coloured bit at the back of the rotor [] ), this does two things, firstly it ensures that the surface of the comm is perfectly parallel with the axis of the rotor and secondly it cleans the burning/pitting and scratches off the comm to allow better conductivity between the brushes and the comm. Skimming MUST be done on a lathe as great accuracy is required.

Your LHS may be able to recommend somebody who can do this for you. My LHS did for me. You simply drop in your worn motors and pick them up a week or so later nicely refurbished - this saves you buying a comm lathe (very expensive)and the cutting tools (expensive) and the time (rather be out playing) etc

[jozza]

Yep, comm lathes aren't cheap - I've got a Hudy, the lathe is about £130, the cutting bit is £60 [:0]

For me it was a worthwhile investment though, as I've got 3 cars being raced every week (me and my lads) and taking 3 motors to my local shop every fortnight meant that I would've soon spent the money for the lathe.

Most shops charge between £3 for a skim to £10 for a full service including brush replacement, and if you don't race loads of cars regularly it's a good way to get it done. My LHS allows "regulars" to use his comm lathe and other equipment for free, but that's only cos he knows we spend a fortune there and it keeps us coming back to the shop for more toys [].

[GPZ1000RX]

siv429 old chap,

Back to the original subject, a high rev motor will not be as suitable for your (relatively heavy) TB01 chassis as a high torque one.

It's the torque that accelerates the car not revs.

You will also pay the price for revs in battery run time, motor heat and higher maintenance expenditure/time.

Unless you can afford a hand wound full house modified motor (£50+ UK) plus all the necessary high spec ESC, batts, charger etc. plus the maintenance (comm skims etc) you really are better off with a P2K.

If you've been using a kit motor till now the extra acceleration AND higher top speed will surprise you.

[GPZ1000RX]

Further to the above, in the UK apexmodels.com have the full range of Trinity stock motors + Reedy + Orion + Phantom including the P2K for sale, on line, at prices between £25 and £28

[jozza]

You can also get Team Paradigm PK2K motors for £28 from my LHS. These are the standard P2K2 motors, which have been stripped, zapped, skimmed, balanced and something else done with lasers, can't remember what though []. They run faster than the off the shelf P2K2 motors.

[siv429]

Thanks for the info guys i have a P2K2 Pro on the way as i type!

Cheers

Justin

[Lucodeath2]

I have now got a p2k2 motor and the top end is way higher than my orion 17X2.

Its easy to control on acceleration aswell due to being less punchy.

People ask what winding it is and they dont believe its a 27turn

[jozza]

Good stuff Lucodeath; I had the same with my P2K2 (Paradigm tuned) motor, when I was racing it the guys at the club thought I was using a 19T motor [8D]. It did suffer yesterday though, I think I overtightened the bell after rebuilding and it was slow, and it took me 2 races to realise it was the motor causing slowdown, by which time it was hot and didn't feel good at all []. However, after a quick clean out of the bell and brushes, and less tightening down, it's running fast again, so it must be a pretty tough motor too []

I think that for smaller tracks they are a superb motor, and work well in my Tamiya offroad bashers too, they are torquey enough to get those Tamiya gears turning nicely.