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Old 10-17-2014, 12:34 AM   #1
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Default 550 motor in a touring car

Has anyone done this? What would be the advantages/disadvantages? How would you gear it? I know it adds extra weight.
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Old 10-17-2014, 09:21 AM   #2
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It would throw off the car balance. It would be illegal to use at any race. It would also stay cooler so you can gear it up. A 540 3.5 turn is a better idea if you just want stupid fast.
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Old 10-17-2014, 10:45 AM   #3
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the 550 motor is for torque, like you would need in a 4x4 Short course


you would probably destroy the drivetrain and it you would do crazy burnouts getting off the line.

no point whatsoever, a 2.5-4.5 540 is already going to be faster and have as much torque as the cars can handle
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Old 10-17-2014, 10:48 AM   #4
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Only BERT did it...lol.... I gear my Novak HV4.5 tc4 at 5.46fdr , and the bottom end, acceleration, and top end are out of this world... Faster than any 2S car out there by a mile, with my radio at 80% throttle....lol.... I use a Tekin Rx8, and Thunderpower 4S 3300mah lipo(370grams)... The car weighs 1711grams, and the extra weight helps plant the foam tires down on the ground.... Great car to bash with the 8scales....lol...
I own a 2.5t boosted Awesomatix that can't match my tc4 HV at all.... I think the Awesomatix is too light for a 2.5t anyway...
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Old 10-17-2014, 12:03 PM   #5
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From my experience running a 550 4700kv motor, it will initially have a lot of torque, but that can be easily offset with taller gearing—how tall? Trial and Error, you have to do testing. I ran a 27 pinion 55 spur on 3s and then 4s and the 1/10 tc was an absolute rocket at a little less than 1/2 throttle. But that set up was close to the limit as I had to constantly monitor my temperatures. I then tried a 31 pinion, but my temperatures were too high.

And as far as the weight, I didn't really notice any major difference from a 540. Heck, I'm running 1/8 2650kv motors in my 1/10 tc and the added weight is no big deal. It is still nimble and quick.

This was my LRP 550 Dynamic 10l 4700kv set up:


This is a comparison with the 2650kv 1/8 motor:


Had to cut the frame to make it work:


1/8 motor installed:


Ready to go: Note: I added 44.5mm wide foams in the rear and 31.5mm wide in the front to handle the power.


So if it can work for a 1512 1/8 motor, it will work with a 550
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Old 10-17-2014, 12:04 PM   #6
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Well if you cant trust someone who speaks in the third person, who can you trust?
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Old 10-17-2014, 12:12 PM   #7
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Evo, what chassis is that? I am really liking the nitro style pillow ball set up.
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Old 10-17-2014, 12:32 PM   #8
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Quote:
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Evo, what chassis is that? I am really liking the nitro style pillow ball set up.
Proffesor,

You have an educated eye. Its the Serpent 747e, (electric version of the nitro 747)
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Old 10-17-2014, 12:42 PM   #9
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Looks like they copied xray with the ball bearing supported swaybars... you know because no matter what it is or if it came first its a rip off of xray.
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Old 10-17-2014, 01:57 PM   #10
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I don't see the point of trying a bigger motor in a TC. A low-turn 540 on 2s is already much faster than most of us need. I think there's more future in smaller motors.
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Old 10-17-2014, 02:50 PM   #11
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Here is the completed chassis. The blue BMW has a 2600kv lrp Dynamic 8 1/8 on 6s. And the orange BMW has a 2650 poseidon 1/8 1512 on 6s. Both cars have 44.5 wide rears / 31.5 wide fronts.




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Old 10-17-2014, 02:52 PM   #12
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Quote:
Originally Posted by heretic View Post
I don't see the point of trying a bigger motor in a TC. A low-turn 540 on 2s is already much faster than most of us need. I think there's more future in smaller motors.
If you enjoy smaller motors then stick with them
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Old 10-17-2014, 06:18 PM   #13
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Nice car, but not 190mm though..... Only BERT did it...lol...
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Old 10-17-2014, 06:28 PM   #14
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Those are cool but that setup is overkill for even an eighth buggy. Way too much power to ever be able to control on a touring car. Not knocking you I like seeing crazy overkill stuff.
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Old 10-17-2014, 07:02 PM   #15
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^^^You think thats overkill, I won't even mention the gearing lol
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