Comprehensive engine dyno results

[mikeh]

From another site, here's an entire list of all the engines tested on the X-Dyno. Please note that you are looking at peak numbers which is great for marketing, but does not tell the entire power characteristic of the engine.

Company Engine HP TQ Peak RPM Part # Price
Associated MGT 4.6cc 1.10 @ 19,500 rpm 57.60 oz-in @ 17,750 rpm 34,250 rpm w/ kit n/a
Axial Racing .28 Spec I S 1.43 @ 22,800 rpm 75.61 oz-in @ 18,000 rpm 35,000 rpm AX001 $160
CEN NX-26 1.02 @ 23,200 rpm 53.00 oz-in. @ 18,000 rpm 33,200 rpm w/ kit n/a
CEN X-76 .46 1.58 @ 21,250 rpm 74.88 oz-in @ 16,500 rpm 36,000 rpm w/ kit $299
GS GS-R25MT 1.20 @ 24,000 rpm 55.68 oz-in @ 17,000 rpm 35,500 rpm w/ kit $230
HPI 18 SS 0.63 @ 29,500 rpm 24.96 oz-in @ 22,250 rpm 32,500 rpm w/ kit $170
HPI Nitro Star F4.1 0.94 @ 20,250 rpm 48.60 oz-in @ 18,000 rpm 33,500 rpm w/ kit n/a
HPI K4.6HO 1.28 @ 19,500 rpm 64.76 oz-in @ 19,500 rpm 32,000 rpm w/ kit n/a
HPI Nitro Star K4.6 1.32 @ 22,250 rpm 59.52 oz-in @ 19,750 rpm 35,000 rpm w/ kit $200
Kyosho GSR-26 0.94 @ 31,500 rpm 46.08 oz-in @ 14,300 rpm 34,250 rpm w/ kit n/a
LRP Z .12R Team Spec.2 1.11 @ 34,500 rpm 32.46 oz-in @ 34,250 rpm 41,250 rpm LRP31201 $240
Mach .15 Rear Exhaust 0.65 @ 21,500 rpm 30.72 oz-in @ 11,000 rpm 29,500 rpm w/ kit $120
Max Power .12 S-3MF 0.91 @ 34,750 rpm 28.80 oz-in @ 30,250 rpm 43,000 rpm MX12MAXS2MF $349
Max Power MX21M5 1.35 @ 24,500 rpm 55.68 oz-in @ 21,000 rpm 38,250 rpm MX21M5 $350
Mugen X12 SE 0.88 @ 21,500 rpm 28.80 oz-in @ 30,000 rpm 42,500 rpm X12S3 $290
Novarossi N21B 1.33 @ 22,750 rpm 59.52 oz-in @ 20,750 rpm 35,750 rpm N21B $199
Novarossi N528XR Hott Mod 2.02 @ 26,250 rpm 80.64 oz-in @ 22,000 rpm 38,500 rpm N528XR $319
Novarossi P5 1.46 @ 25,250 rpm 59.52 oz-in @ 22,000 rpm 37,750 rpm A2C201 $300
O.S. .12TZ(S) T3 0.80 @ 34,000 rpm 24.96 oz-in @ 21,750 rpm 38,500 rpm 11371 $230
O.S. 12 TR 0.65 @ 30,000 rpm 25.00 oz-in @ 23,250 rpm 39,350 rpm 11362 $130
O.S. 12 TR-T Outlaw 0.73 @ 31,500 rpm 25.96 oz-in @ 27,250 rpm 41,000 rpm 11365 $160
O.S. .18 TZ-T 1.18 @ 29,400 rpm 44.16 oz-in @ 21,750 rpm 42,050 rpm OSMG2114 $180
O.S. VZ-B V-Spec 1.47 @ 24,250 rpm 61.20 oz-in @ 22,500 rpm 41,500 rpm 13890 $320
O.S. 30VG 1.80 @ 26,500 rpm 74.88 oz-in @ 18,750 rpm 35,500 rpm 13960 $250
Ofna Hyper 21 8-Port 0.98 @ 20,750 rpm 49.92 oz-in @ 14,750 rpm 33,000 rpm w/ kit $150
Ofna Force .26 1.02 @ 24,000 rpm 48.00 oz-in @ 19,500 rpm 38,500 rpm w/ kit $140
Peak Diablo .12 Type-R 0.51 @ 25,550 rpm 21.10 oz-in @ 19,000 rpm 33,000 rpm PEK6006 $150
Peak Diablo .28 1.33 @ 27,500 rpm 48.00 oz-in @ 22,000 rpm 40,800 rpm PEK6081 $170
Ofna/Picco P7-R Evo .21 1.08 @ 24,800 rpm 58.93 oz-in. @ 25,400 rpm 39,300 rpm 51218 $309
Ofna/Picco P7-R Evo .21 1.47 @ 25,200 rpm 59.01 oz-in. @ 24,800 rpm 39,400 rpm 51218 $309
Racers Edge Sure Fire .32 1.65 @ 21,750 rpm 74.80 oz-in @ 21,000 rpm 34,500 rpm RCESF10000 $200
RB Concepts V12 Rody 3T 0.95 @ 34,250 rpm 28.80 oz-in @ 28,750 rpm 44,750 rpm 1700-000445 $375
Rex R12S5 Outlaw 0.84 @ 34,750 rpm 26.88 oz-in @ 26,750 rpm 41,250 rpm RER12S5 $385
Rex ReR5 5-port turbo 0.84 @ 34,750 rpm 27.00 oz-in @ 26,750 rpm 41,250 rpm ReR5S3 $320
SH PT2002XB .21 1.21 @ 22,100 rpm 55.68 oz-in @ 19,750 rpm 39,000 rpm 147009 $229
SH 0.28 1.22 @ 20,500 rpm 61.40 oz-in @ 14,750 rpm 38,450 rpm w/ kit $150
Sirio S12T3 EvoIII 0.79 @ 35,050 rpm 23.04 oz-in @ 22,000 rpm 40,750 rpm S12-TRP1 $200
Sirio P21 PR Pro 1.46 @ 27,750 RPM 53.76 oz-in @ 26,250 RPM 41,000 rpm S12-TRP1 $200
Sportwerks 0.26 1.30 @ 26,750 rpm 53.76 oz-in @ 19,000 rpm 42,750 rpm w/ kit n/a
Super Tiger G-27CX 0.86 @ 17,250 rpm 50.70 oz-in @ 16,250 rpm 30,250 rpm w/ kit n/a
Tamiya FR-15S 0.48 @ 30,250 rpm 21.12 oz-in @ 13,000 rpm 36,500 rpm S21 PR Pro $350
Team Losi Mach 427 1.31 @ 26,750 rpm 53.80 oz-in @18,750 rpm 43,250 rpm w/ kit n/a
Thunder Tiger Pro .21 0.92 @ 21,750 rpm 57.60 oz-in @ 16,750 rpm 37,750 rpm w/ kit n/a
Thunder Tiger Pro 28 BXR 1.10 @ 19,500 rpm 57.60 oz-in @ 17,750 rpm 34,250 rpm w/ kit n/a
Top TS12S3 0.77 @ 31,000 rpm 26.88 oz-in @ 20,250 rpm 41,750 rpm TSR12S3 $299
Traxxas TRX 2.5 Rear Exhaust 0.69 @ 29,750 rpm 30.72 oz-in @ 18,750 rpm 38,500 rpm w/ kit $160
Traxxas TRX 3.3 Pullstart 0.97 @ 31,250 rpm 37.49 oz-in @ 19,500 rpm 37,750 rpm w/ kit n/a
Trinity 427 Monster Horsepower 1.02 @ 24,250 rpm 48.00 oz-in @ 19,250 rpm 38,100 rpm w/ kit n/a
Trinity .30 Adam Drake 1.44 @ 21,750 rpm 55.68 oz-in @ 27,000 rpm 36,250 rpm TRI40006 $215
Werks Racing Collari B7 1.54 @ 26,000 rpm 59.52 oz-in @ 23,750 rpm 36,650 rpm WRXLC21B7 $250
Xray NT18 N/A N/A N/A w/ kit n/a
XTM XTM 24.7 1.27 @ 23,000 rpm 61.44 oz-in @ 16,750 rpm 37,250 rpm w/ kit $140

[Czech-it-Out Graphics]

XRC magazine dyno?

[Sh1nn3r]

Rossi 528xr is a beast!

[Czech-it-Out Graphics]

try one eb modded, look at those HP ratings on that B7

[Sh1nn3r]

v-spec is pretty nasty too... I would like to see the speed and what the c6 puts out.

[Evil3]

XRC magazine dyno?

Yes mike the XRC dyno (it's also on their forums)

[Thirdgen89GTA]

I just wish they'd post the graphs. Peak power is good for bragging.

However, you can slightly picture the powerband by looking at the RPM difference between peak power and peak torque. Its still just a glimpse though.

I find it funny that the Picco P7R first dynoed at about 1hp, then is listed again at 1.5hp. A 50hp gain.

Which can show you how wildly these dynos can vary. Though the X-dyno is still the closest thing to a SAE net HP rating.

I still would love to hear an uninterupted sound clip of the X-dyno. in the teaser it really reminds me of a F1 car on the dyno.


Even though its a teaser/advert, I still love the way it sounds.

[J-Dub]

It does sound rather cool.

[Thirdgen89GTA]

It does sound rather cool.

The cool part is you could then dyno a nitro engine against a electric motor side by side. Though, they already release these specs with electric motors now.

[J-Dub]

Electric Motors have loads of torque, but they lack the horsepower and top end, a Nitro has...Correct me if im wrong?

[Czech-it-Out Graphics]

pretty much, its like taking a nitro and being able to go from idle to full RPM within a fraction of a second

[Thirdgen89GTA]

J-dub, Thats question really doesn't have a yes/no answer.

On the one side, electric motors have full torque available from 0rpm, and torque falls off as RPM increases because the electric motor is becoming less efficient as RPM increases. So mikes statement is true in that regard. Especially considering that as the batteries use their store they produce less, and less voltage so performance decreases severely at the end of a pack. While nitro will technically get faster as the tank empties and the mixture leans out.

However, the other side of the coin is that electric motors (like those used in 8th scale conversions) often don't fall off the powerband till about 45,000 to 50,000rpm. Most 8th scale conversions run about 14.4v, and use electric motors that range from 2800 to 4000rpm per volt. So you will see about a maximum shaft rpm on the motor between 40,000rpm and 60,000rpm. Which is about the same powerband range as a good .21 nitro engine.

Initially electric is more expensive, though less messy to maintain. Nitro is cheaper on startup, but has higher costs to maintain it. Fuel, glow plugs, etc....

In the end though electric is only slightly more expensive. The reason nitro became so popular was because at the time electric battery technology couldn't provide enough juice to power the larger cars. Because of the noise it makes nitro has a presence that electric lacks too. However thanks to newer battery technologies electric is making a comeback and currently the fastest RC records are for electric vehicles.

Personally I'm going electric because its easier to maintain. As a basher electric appeals to me more since i can just plug the battery in and go. Though water becomes a bit of an issue that nitro will just shrug off. However, electrics advantages appeal to me more.

[Czech-it-Out Graphics]

batteries are for reciever packs and flash lights

[slaytanic]

I goota say, I will always love the sound of a good mill screaming down the straight. That being said, I am sick and tired of maintenece and costs associated with nitro. Every day I am leaning more and more towards electric. But I will need to learn all over as I have no experience with it. But with todays technology it is becoming pretty tempting!

[Czech-it-Out Graphics]

man maintenance is half the fun of it!