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View Full Version : PN 33 Turn motor question....


Chicken Little
2010.08.04, 10:58 AM
I would like to use this on a Mr-02 2.4ghz board. Will I require to upgrade the fets or can I just run it with the 3010 fets that came with the 2.4 board?

PNracing
2010.08.04, 11:08 AM
It is not safe, if you run stock FET, must be mininum 8pcs, the stock borad coming with 4pcs only. If recommend you run 50T or 43T, but also need to use right gear ratio.

http://pnracing.us/productsphotos/motor-spec-sheet-100713.jpg

Chicken Little
2010.08.04, 01:10 PM
Thank you for the quick reply. Love your products by the way! :)

EMU
2010.08.04, 04:29 PM
In the PN race this past weekend, I ran the 43t in mod GT and Pan Mod, and the 39t in 3 different F1's, all with no FET modification. I really liked the motors, very similar in feel to the ATM Stock-BB, good power out of the corner, and smooth. Runtime was good as well, I never felt that I dumped in the 10 min mains.

Felix2010
2010.08.04, 05:03 PM
EMU, you ran the new PN 43t in both Modified classes?! Wow, they must be good. Thanks for making note of that on here. I would have thought with most guys running PN 35t minimum (And I'm taking a guess that there were older-PN 33t and new PN 32t's everywhere!) that a 43t just wouldn't have the stuff for an extra-large layout like the one used at PNWC events? I know that as the R&D guy for TSM I am looking at almost exclusively 30t and sub-30t for TSM's newest Modified motors...:D Of course TSM can always build whatever you want:D
Oh and of course props to PN, his motors are always awesome, not trying to take away from Phil's motors at all. Specialized-custom motors are a niche thing and I am not trying to sell or anything, I just wanted to comment here. I think Philip Ng knows I'm not trying to take away from his business, I own enough of his motors... Just wanted to edit that in;-)

JuniorWKR
2010.08.04, 05:22 PM
i ran 33t in both mod and pan... absolutly love that motor... high gearing with mid motor frequency... excellent combo.... excellent motor....

Felix2010
2010.08.04, 06:08 PM
Junior, I agree - PN33t especially the 2009 version is an excellent motor. One of my favorite machine-winds. I actually love the Anima II as well, it was so hot though... Pulled major Amps for being a 33t. But the PN33t/Anima II motors have been my fave "Over-the-counter" Mod motors for a while now.:D Thank you for your imput Junior!:D

SPANKY
2010.08.04, 06:21 PM
It is not safe, if you run stock FET, must be mininum 8pcs, the stock borad coming with 4pcs only. If recommend you run 50T or 43T, but also need to use right gear ratio.

http://pnracing.us/productsphotos/motor-spec-sheet-100713.jpg

the mr-03 board,can the 33turn be ok or does the mr-03 has to be refetted?

EMU
2010.08.04, 07:43 PM
I was using larger diameter rear wheels, mainly to give me a closer rollout to the F1 which was my primary class. The lower turn motors have too much top end, and the gearing wasnt right. With the 43 and 39t, gearing was much better, and I was about the same speed as the lower turn motors on the straight.

Chicken Little
2010.08.04, 11:33 PM
Wait, so I can use up to 39 turn motors without upgrading my MR-02 2.4GHZ board? EMU, what was your gearing ratio for each of the motors you used if you don't mind me asking. Thank you in advance.

EMU
2010.08.05, 12:14 AM
I used inch up wheels for the 2wd chassis, and used 11/52. Without the inch up wheels I would use 11/52. For F1, I used 9/46 in two cars and 10/52 in the other. This was on the PNWC layout. The cars topped out midway down the straight. They still had a little pull, but were out of their power band. They had great pull out of the corner, where I like my power. I could have geared them up a little more for more top speed, but that would hurt the efficiency and increase heat. I wanted to make sure that they would make the 10 minute runtime without any loss of power.

Felix2010
2010.08.10, 03:50 PM
the mr-03 board,can the 33turn be ok or does the mr-03 has to be refetted?

In my experience, though it is not recommended the PN 33t (2009 version) CAN be run safely on a stock 2x2 ASF board (4 FETs total). BUT! You must use proper gear ratio, I suggest something like or close-to 9/53 or 10/53 or even 9/54 or 10/54. The 33t has a lot of speed and is still wicked with this gear ratio. This gear ratio also keeps the motor in its peak powerband better.

One more thing is, you must be good with your throttle. You have to be steady and not go heavy on-throttle or you will toast your Fets. It's not so much that the 33t pulls too much Amps for the stock ASF boards, but the heat buildup from heavy ON/OFF throttle will definitely kill 2x2 3010 FETs. If you are an advanced driver then you can get away with 2x2 3010's even for racing. But if you aren't sure about your ability to keep throttle steady, I suggest trying the car for like 5 minutes and then checking the FET temp with Temp gun.