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Old 11-08-2013, 05:14 PM   #1
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Default What's the best alternative to a 21.5 Corally pro red

Hi all I'm new to the forum but have been carpet racing touring cars for a few years now at club level.
Now within our club we run 21.5 open with no rules on the type of 21.5 turn motors you can run. We are also allowed to run foam tires which is a bit different to most clubs around the area.
It's a small indoor track that is pretty tight with one long straight. We currently run between 8 & 9 sec laps depending on the layout.
Recently we have a couple of members running the Corally pro red motors and have absolutely blasting everyone with them I mean like 1/2 second a lap quicker.
They are also running black diamond speedo's v my tekin rs pro & we are all now running mi5's
As I can no longer get hold of the corally pro red I wonder if there are any other motors out there that can compete with it?
Any help or advice would be appreciated.
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Old 11-08-2013, 06:18 PM   #2
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This topic was discussed in length here.
http://www.rctech.net/forum/electric...-opinions.html
I have raced many 21.5 motor I currently have in my car Reedy Sonic. Revtech Killshot,
I also have Tekin gen2, Revtech, Turnegy. All of these motor are pretty close in lap times. All of these motors are very sensitve to gearing and timing. It takes carefull testing to find the sweet spot in these motors. When you find that sweet spot it will give you a performance advantage I assume that is what the 2 guy's running the Corrally motors have found!
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Old 11-09-2013, 01:55 AM   #3
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The Corally red motors were built without any regard to construction rules. You won't find any "legal" motor that comes close to it unfortunately.
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Old 11-09-2013, 02:36 AM   #4
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The Corally red motors were built without any regard to construction rules. You won't find any "legal" motor that comes close to it unfortunately.
So what illigal motors can you buy that might compare? As I said above my club has no rules on what 21.5 you can run. Just want to find something that will level the playing feild so to speak.

I have just purchased a novak vulkan outlaw to try but I am finding it difficult to find any reviews on them so it's a bit of a gamble. I heard the revtec killshot is a good motor so I have also bought that to try.

Most of the talk on 21.5 motors are classes that run blinky, I have found that in the boosted world of 21.5 you need to have the best of everything. That includes the best battery's, speedo, & motor to squeeze out every bit of performance you can just to compete at top level. I am also going to upgrade to the black diamond speedo as it seems worlds apart from anything else on the market.
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Old 11-09-2013, 03:24 AM   #5
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You might want to go overkill on the cooling side too - 2 fans?

keep the motor temperatures down.

Don't forget tuning rotors too - they might give you that little edge you're looking for.

Look at the whole picture, not just what is giving out the power - reduce weight as much as possible.

In your situation, I would be tempted to get a Tekin redline gen 2, and a tuning rotor.

I race on foams too, but 13.5 blinky.

Have you tried Modeltech for getting the motor? They stock Corally
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Last edited by tc3team; 11-09-2013 at 04:22 AM.
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Old 11-09-2013, 06:47 AM   #6
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You might want to go overkill on the cooling side too - 2 fans?

keep the motor temperatures down.

Don't forget tuning rotors too - they might give you that little edge you're looking for.

Look at the whole picture, not just what is giving out the power - reduce weight as much as possible.

In your situation, I would be tempted to get a Tekin redline gen 2, and a tuning rotor.

I race on foams too, but 13.5 blinky.

Have you tried Modeltech for getting the motor? They stock Corally
Thanks for the ideas

Just Recently upgraded my fans to two 40mm zeppins which helps with the temps
I have also tried the redline gen 2 and did not like it as much as the original gen 1.
I have already tried modeltech to get a corally pro red and they will get no more now that the pro silver version is out.
We have also tried the corally pro silver and it is a great motor but still not as quick as the old red.
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Old 11-09-2013, 08:14 AM   #7
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Thanks for the ideas

Just Recently upgraded my fans to two 40mm zeppins which helps with the temps
I have also tried the redline gen 2 and did not like it as much as the original gen 1.
I have already tried modeltech to get a corally pro red and they will get no more now that the pro silver version is out.
We have also tried the corally pro silver and it is a great motor but still not as quick as the old red.
.

Hi rug rider, it sound like your racing up at mj on a Wednesday. There was an aternitive to the pro red is was the graupner version of the same motor but these are also hard to come by too. The tekin gen 2 is a very good IMHO but for such a small track like mj you would want to be using the torque version.

As for the bd, isn's an absolute must but the bd has a very smooth throttle feel and is very simple to set up, that's why I have stuck with my for the past 3 years.

Have you looked into getting an outlaw motor from the likes of trinity?
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Old 11-09-2013, 08:33 AM   #8
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MI5 with foam tires ?? on carpet ? with 21.5 motors ? How do you manage to run the cars without them coming to a dead stop in every corner ?!
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Old 11-09-2013, 08:43 AM   #9
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Jet Racing still do them

http://jethobby.com/_shop/product/product.php?brand=156

Maybe you can open an account and get it shipped to you in the UK
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Old 11-09-2013, 09:15 AM   #10
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http://news.efra.ws/fileadmin/news/2...Spec.%20v4.pdf

The New Corally 10.5T motors are also EFRA legal. You could just send a mail to them to ask if its more powerfull than the old and if not you can ask if they have the red series around.
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Old 11-09-2013, 09:48 AM   #11
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If you can get to a Coastal Meeting in Ipswich, I have a Pro Red 21.5, I no longer use as I run 17.5T now, that can be yours for a very small cash amount.
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Old 11-09-2013, 10:22 AM   #12
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The Corally motor is outright cheating. It's like star vs wye wound. It's not a 21.5 in any sense other than the writing on the can. You should put a 13.5 stator in a 21.5 can and you'll be closer to legal than those guys. No lie. Find a mfg like Reedy that doesn't stamp the winds on the can and just cheat.
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Old 11-09-2013, 10:33 AM   #13
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Quote:
Originally Posted by syndr0me View Post
The Corally motor is outright cheating. It's like star vs wye wound. It's not a 21.5 in any sense other than the writing on the can. You should put a 13.5 stator in a 21.5 can and you'll be closer to legal than those guys. No lie. Find a mfg like Reedy that doesn't stamp the winds on the can and just cheat.


It is not cheating if the club or series you run in specifically allow the motor, the downside is you really need it to keep up. Or of course if you can get your hands on a particular motor from the states that was very popular and was required to be competitive


In the 2012 STCC their were one or two combinations that did match the Pro Red - the old Tekin motor (pre Gen 2) with the Tekin RS pro ESc for instance.
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Old 11-09-2013, 11:08 AM   #14
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I agree. Its actually not all about the stator. The magnet is 12.1mm and very short and it can rev due to small size but the core is the same size as the spindle, 3.2mm. The result is a small magnet with 1900 gauss. Stronger than even all the mod rotors. The strongest stock legal rotors are about 1400, and the majority are 1200-1300. Only trouble was it often created a lot of heat in boosted. At WLRC the Tekin/Tekin or Tekin/Novak was actually 3-4mph faster down the straight. For small carpet layouts in blinky it'll have a huge advantage
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Old 11-09-2013, 11:11 AM   #15
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The lowest wind motor in the red series is to date the most powerful motor i know about.

1800W in burst! thats 2hp!
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