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Old 11-18-2007, 06:15 PM   #1
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Default NEW TO TRUGGY 21 OR 28

HELLO,

JUST WANTED TO SAY IM NOT NEW TO R/C RACING..I RACE ONROAD NOW.. JUST ALOT OF TRACKS ARE CLOSIING GOING TO OFFROAD ..I SEE ALOT OF COMPANYS COMING OUT WITH WHAT THEY SAY ARE ENIGINES MADE JUST FOR TRUGGYS..WHEN I GO TO THE TRACK ALL I SEE ARE 21 ENGINES.I ASKED A COULPE OF GUYS AND THEY SAY FROM WHAT THEY HEAR IS THAT THESE NEW TRUGGY ENGINES ARE KILLING THE DRIVE TRAIN.SO SHOULD I SAY WITH A 21 OR GO WITH A TRUGGY ENGINES..
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Old 11-18-2007, 06:52 PM   #2
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ive ran both in my 5T, and have never had any drive train problems...IMHO the .28 is better in the truggy...the new racing 28's have the same top end as the 21's, but have alot more bottom...i would say go with the .28...and when your out looking for a new engine take a look at the Go Tech .28, its a killer for just a lil over $200...
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Old 11-18-2007, 07:15 PM   #3
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.21 all the way, they have just as much power as any of the best drivers will ever need, and anyways .28 dont have any more top, just more bottom end to make the car harder to keep control of. I use .21s and will never switch to .28, a .21 is all you need. And they also get better gas mileage so that could easily be the difference between 2 and 3 pits or however many pits you have to make.
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Old 11-18-2007, 07:17 PM   #4
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A good .21 is the way to go. .28's are hard on the drive train, .21's get better fuel economy. I ran an OS 28XZ for a few weeks, going back to the Vspec. The extra power is fun, but i'm faster with a .21. .28=overkill.
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Old 11-18-2007, 07:19 PM   #5
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the .28's have great bottom power compared to the .21. But I think majority of the pro's still use .21 mainly because of the fuel econnomy and I think the .21 engines are still a little more reliable than the .28 at the moment. I'm sure the .28 engines will get much better with the popularity of truggies.
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Old 11-18-2007, 07:22 PM   #6
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depends on what kind of driver you are.
smooth .21
run and gun .28
I ran a ebmods .21 vspec in my heavy Jammin CRT and it worked quite well.

your choice good luck. and .28's are harder on the drive train
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Old 11-18-2007, 07:40 PM   #7
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If your going to race it, get a .21
If your going to bash with get a .28
Check with the tracks near you some only let you run .21's
I run a Ninja .21 when I race and a modified .28 Axial to bash
with.
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Old 11-18-2007, 09:19 PM   #8
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My next target:



SPECIFICATIONS 28XZ Truggy Engine
Stock Number: OSMG2074
Displacement: 0.284 cu in (4.65 cc)
Bore: 0.728 in (18.5 mm)
Stroke: 0.681 in (17.3 mm)
Practical rpm: 4,000-38,000
Power Output: 3.31 hp @ 32,000 rpm
Weight: 13.1 oz (375 g)
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Old 11-19-2007, 03:31 PM   #9
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THANKS FOR ALL THE HELP I THINK I WILL GO WITH A 21
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