Dyno Test: Reedy Modifieds Ti

Reedy Ti’s one on


If winning races is the best indicator of a motor-builder's prowess, then Mike Reedy is some kind of motor man. After all, more IFMAR World Championships have been won with Reedy power than all other brands combined. (Yes, the drivers have something to do with it, but c'mon—22 titles!)

Mike's latest model is the Ti, which debuted in double-winds and is now offered in single-wind versions as well. It only takes a look at the results sheets from a few big electric races to see what the Ti can do on the track; I'm going to find out what it does on the dyno.


P-94 Features
• Stronger C4 magnets.

• Black- and red-anodized brush heat sinks indicate polarity.

• New endbell design increases ventilation for greater cooling.

• Thicker, "Max-field" 1.4mm can for maximum magnetic-field strength.

• New armature creates a more intense magnetic field for increased torque and acceleration.

• Factory-equipped with 729 Quasar Touring Competition brushes.

I tested a 10-double-wind Ti motor fresh from the package without tweaks. Although performance gains may be had by playing with the brushes, springs and timing, I expect a hand-wound mod to be dialed in at the factory. That's what you pay the extra cash for—a pretuned motor with the right brushes and timing.

The Ti cranked the flywheel up to an impressive 40,528rpm. Maximum torque was a beefy 119.9 Nmm and created 235.5 watts of power. The Ti also surprised me with 83.4 percent peak efficiency. This is all accomplished with the factory timing setting of 10 degrees. That means there is room to crank it up and get more power, but that extra juice really depends on the track conditions and batteries.


Test results
Peak rpm:
Peak power (watts):
Peak torque (Nmm):
Peak efficiency (%):

Test-setup specs

Comm diameter:
10 double
729 Quasar Touring Competition (included)
copper (included)

10 degrees (factory setting)


The Ti's new can is designed to keep temperatures down when things get hot. More important, its two-vent design creates a magnetic field that increases torque (the Fury series had a three-vent can that gave it more rpm).

The endbell has been redesigned with new ventilation openings and also features an improved brush-damping system to prevent the brushes from getting the jitters and affecting performance. Reedy explains that the brush-damping system on the Fury series supported the brush only at the shunt end, and that allowed the brush to tip forward toward the comm. The new brush-damping system supports almost the entire brush, and that will keep it truer to the comm.

Inside you get the latest C4 magnets (great for producing huge torque) and Mike's latest winds in either a double or a single configuration. Reedy claims the new-style armature—a 5mm lightweight blank—is designed for increased torque and quicker spool-up. That means your car gets a shot in the pants faster, with more cars staring at your taillights than passing you. A high-quality set of Quasar Competition brushes is included with every Ti motor. Mike explained that he chose those brushes because they provide exceptional power and are very easy on the comm. He recommends that you clean them after every run and cut the comm after a few runs; he said the brushes will last for a few race weekends.


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Single, double, quintuple, google... There are lots of options to choose from when picking a wind. The Ti series simplifies it with two winds—double and single. After dyno'ing the 10-double Ti, I strapped a 10-single into the Robitronics Pro Master to see exactly what I would get if I chose to stay single (besides a messy apartment and a refrigerator that contains only condiments and leftover Chinese).

Not much difference! The single had more torque—127.5 Nmm compared with the double's 119.9 Nmm—and its power was also slightly higher, edging the double's 235.5 watts by 5.7 watts for a total of 241.2. But the double won the spin contest with 40,528rpm; that was just slightly higher than the single's 39,906rpm. The efficiency of both motors was about the same.

Which should you choose—the double or the single? Consider the time to maximum rpm. The single spools up more quickly at 6.06 seconds to maximum rpm, while the double takes more than another second to reach maximum rpm, clocking in at 7.42 seconds. So why would you want a slower spool-up time? It's all about traction. Low-traction conditions favor less torque, and a longer spool-up means less torque. So if traction is low, you can put down power more easily with the milder power band of the double.

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Reedy designed the Ti series for touring-car racing, which typically requires high amp draw and needs extra low-end torque. Based on the dyno-test results, the Ti double-wind delivers exactly that type of performance. But the Ti mods aren't just for touring cars; the series is well suited to any application that requires high-performance mod power. Pick the appropriate wind and bolt it in; there's no promise that you'll score a 23rd Worlds win for Mike Reedy, but there's a good chance you'll cut a few tenths off your best lap time.


Reedy; a division of Team Associated, (714) 850-9342; http://www.teamassociated.com/.

Robitronics; Distributed by Trinity Products; (732) 635-1600; http://www.teamtrinity.com/.








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