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.21 engines in Truggies

Old 07-06-2008, 01:07 PM
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Logi3
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Default .21 engines in Truggies

Anyone running a .21 in there Truggies? How do you fair up with the .28s ? Just damaged my .25, i love the .21 7 port Go engine in my Buggy, wondering would it be able to do the job in my ST-1 paired with a 13T CB?
Old 07-06-2008, 01:54 PM
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Default RE: .21 engines in Truggies

Not sure. I would like to ask you about your Go engines though, I'm looking at getting one for my Hellfire, not sure whether to get the .21 .25 or .28. How was the .25?
Old 07-06-2008, 02:08 PM
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Logi3
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Default RE: .21 engines in Truggies

never got to run it mate, but if its anything like my Go .21 7p then it will ballistic. Its one of if not the fastest engine at my race tracks, shame i cant drive well with how quick it is
Old 07-06-2008, 02:38 PM
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Default RE: .21 engines in Truggies

That's all I run in my truggies..Here in the states that's what all of the factory pros run in their Truggies..a fact lost on most truggyracers here..I have yet to race on a track where I felt i needed a .28..some think power will make up for lack of driving skill..It doesnt..sorry..truth hurts
Old 07-06-2008, 03:04 PM
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Default RE: .21 engines in Truggies

Thanks Oasis, the 21 7p is ballistic in my Buggy, and it took 2 minutes to crash out of the race, it was down to poor driving although 99% of my experiance is with Truggies, im just lacking in the engine department. The stock .28 TTR engine in the ST-1 has no legs.

Think i will get another Go .21 7p then, coupled with a 13T CB
Old 07-06-2008, 04:15 PM
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Default RE: .21 engines in Truggies

Go for the Go 5 port .21 in your truggy, has a bit more bottom end...these motors go great in Truggies. The 7 port is tamer off the bottom which is better for buggies.
Old 07-06-2008, 04:17 PM
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Logi3
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Default RE: .21 engines in Truggies

Am i right, lower number of teeth on the clutch bell = better accel?
Old 07-06-2008, 04:20 PM
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Default RE: .21 engines in Truggies

I run a novarossi plus 21-7BT in my Kyosho ST-RR and i'm not hurting in the motor dept. for sure..A 7 port has a lot on the top so in a truggy it's a good match..From what I have seen the better .28's have some problems putting all that power down, especially in an ST-RR..I also have a RB C6 that I run in a Mugen Prospec and it's ballisticly fast..
Old 07-06-2008, 04:25 PM
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Default RE: .21 engines in Truggies

I have a .21 in my Truggy... I was at Revelation raceway last week with my buggy and the same engine as my Truggy. The new track is setup with some double jumps right out of the corners. I was coming up short by about a foot on the jumps. I think I can get the power out of the engine for the buggy; making the jumps possible. I'm just not so sure about my Truggy. I don't think I've got the power in my .21.. So, I too am now wondering about my decision to put a .21 in my Truggy. I came about a inch this morning from buying the Ofna Picco .21 9 port engine. It wouldn't take much to convince me to buy a GO .25. Torque, RPM and fuel efficiency is what I need.

Seems like tracks are headed toward Supercross style jumps. Which is fun, but requires extra torque.
Old 07-06-2008, 04:37 PM
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Default RE: .21 engines in Truggies


ORIGINAL: Logi3

Am i right, lower number of teeth on the clutch bell = better accel?
yea.


tell me how you like the go tech .21 5 or 7 port in the ST-1 i am still thinking about one maybe the .25...
Old 07-06-2008, 04:44 PM
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Default RE: .21 engines in Truggies

Surely if you got a .28, which has almost too much power, you can just gear it higher so that it has smoother acceleration, and it would be more drivable?
Old 07-06-2008, 05:21 PM
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Default RE: .21 engines in Truggies


ORIGINAL: wrob

I have a .21 in my Truggy... I was at Revelation raceway last week with my buggy and the same engine as my Truggy. The new track is setup with some double jumps right out of the corners. I was coming up short by about a foot on the jumps. I think I can get the power out of the engine for the buggy; making the jumps possible. I'm just not so sure about my Truggy. I don't think I've got the power in my .21.. So, I too am now wondering about my decision to put a .21 in my Truggy. I came about a inch this morning from buying the Ofna Picco .21 9 port engine. It wouldn't take much to convince me to buy a GO .25. Torque, RPM and fuel efficiency is what I need.

Seems like tracks are headed toward Supercross style jumps. Which is fun, but requires extra torque.
What motor are you using..I'm clearing them and so were most the guys with .21's that i saw..you might need to adjust your lines..any jump a buggy can clear i can clear with my truggy....you might need to tune your clutch to get more "snap" outta the corners or go to thicker oil in your center diff..it's not always your motors fault for not clearing jumps..if your at Rev and Lutz is their..watch how fast he is with a .21..it will change your mind..
Old 07-06-2008, 06:08 PM
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Default RE: .21 engines in Truggies

The engine is a NovaRossi N21B 2001 BF .21 Off Road 3 Port Buggy Engine (Standard Plug). I may have the wrong engine for a Truggy? This engine is great in my buggy on a loose track. The power is very linear and controllable. No regrets about purchasing them (2) at all. They seem perfect on my local track. I'm going to change to stiffer springs in my Truggy's clutch next week.

I agree about the lines etc. More skill on my part is in order. I'm going to try to get over to Revelation or Thunder Alley a couple times a month.
Old 07-06-2008, 06:12 PM
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Default RE: .21 engines in Truggies

Its does pretty well in my truggy. Had one in it for a while then I put my modded vspec in it. Cant beat for the money
Old 07-06-2008, 06:13 PM
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Default RE: .21 engines in Truggies

My friend has a GO .21 5-port in his Caster K8T and is has a ton of power down low and is SMOOTH. I might put one in my Caster but am thinking of a 7-port in my buggy to put in my truggy and put the .21 3-port in my buggy instead. I have a GO .25 in stock but I do not know of anyone who has tried it yet.
Old 07-06-2008, 06:27 PM
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Default RE: .21 engines in Truggies


ORIGINAL: vnmsgt

My friend has a GO .21 5-port in his Caster K8T and is has a ton of power down low and is SMOOTH. I might put one in my Caster but am thinking of a 7-port in my buggy to put in my truggy and put the .21 3-port in my buggy instead. I have a GO .25 in stock but I do not know of anyone who has tried it yet.
I'm running an RB C6BBT in My Caster (my buddies call it a Castergen) with the RB 2045 pipe..and it's faaaast..
Hey vnmsgt..I'm building a "stock" Caster..one with all the option parts on it..I need some parts..Hinge pins and a few other items..i'll look up the numbers..
Old 07-06-2008, 06:38 PM
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Default RE: .21 engines in Truggies

People think just because its bigger its going to be faster. Most .21 engines are geared to racing. You dont see too many .28 race engines. More times than not a .21 race engine beat a .28 engine. .21 engines are made to rev high and still have massive low end torque. .28 engines have tons of torque but dont rev near as high. Go to the track and count how many racers are racing a .28 engine. You wont find many. .21 dominate my track. When I started racing this season I had a LRP z28 in my truggy. I thought because I had alot of power I would be able to do good. It was too much. Hard to hook up and the power was not as controllable as the .21 engines. I pulled out the LRP and installed it in my savage where it belongs. I am now running a Losi 26 which has been ported and has a better carb installed. I know its not a race engine but it has plenty of controllable power and I can hang with the other guys. I have placed within the top 5 every race so far except the first 2 races that I was running the LRp. So its not all about power. Its about control.
Old 07-06-2008, 06:54 PM
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Default RE: .21 engines in Truggies

I run a GRP/Ninja 21 short header and Ninja pipe and I can honestly say it has never hurt for power at any time, with the stock 13 tooth clutchbell.
Of course the GRP Ninja is gone but the GRP 21 is the same thing engine and pipe combo about $390. It runs cool, gets great gas econ, and hauls serious truggage
I wheelied it a few times today, landing the backside of a quad
Old 07-06-2008, 07:27 PM
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Default RE: .21 engines in Truggies


ORIGINAL: vnmsgt

My friend has a GO .21 5-port in his Caster K8T and is has a ton of power down low and is SMOOTH. I might put one in my Caster but am thinking of a 7-port in my buggy to put in my truggy and put the .21 3-port in my buggy instead. I have a GO .25 in stock but I do not know of anyone who has tried it yet.

I have both videos and dyno's of my modified Go 25....... I never ran the motor stock, but its internals are very similar to a Mach 427, and judging by its XRC dyno report its extremely close to the 427..... Once modified it became a pretty serious motor !
Old 07-06-2008, 10:46 PM
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Default RE: .21 engines in Truggies

im running a osspeed in my strr and its more than enough power! i was at a race today and had 4 diffrent guys tell me how fast the truck looked
Old 07-07-2008, 02:49 AM
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Default RE: .21 engines in Truggies

tib could you post the dyno of the modded go25 as im curious to see what its like.cheers
Old 07-07-2008, 04:02 AM
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Logi3
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Default RE: .21 engines in Truggies

Interesting posts, so it seems a .21 is plenty for a Truggy, esp if you lower the gearing slightly. Think im pretty much made up about going for a .21. Now its time to determin which .21!

I do like the 7 Port Go, but reading the internet theres millions of different views and opinions
Old 07-07-2008, 07:17 AM
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Default RE: .21 engines in Truggies


ORIGINAL: Logi3

Interesting posts, so it seems a .21 is plenty for a Truggy, esp if you lower the gearing slightly. Think im pretty much made up about going for a .21. Now its time to determin which .21!

I do like the 7 Port Go, but reading the internet theres millions of different views and opinions
The GO 7-port is a awesome motor. Just real touch on tuning. Where as you have to turn a needle on another car 1/4 turn you might have to turn on a GO 1/8 turn or less and also use the LSN needle to do alot of tuning. Weird about the LSN but it works.
Old 07-07-2008, 07:45 AM
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Default RE: .21 engines in Truggies

Pretty happy w/ the AB modded JPX .21 in my 8-T so far...

-Howard
Old 07-07-2008, 08:46 AM
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Default RE: .21 engines in Truggies

IMHO heavy Truggies like a Hyper ST or Kyosho STRR or CRT do much better with .28's....Light machines like a MBX5T and Losi 8T do much better with .21's..... Heavy machines need a 28 just to match the power/weight of a lighter machine with a strong 21......my Hyper ST was a pooch with a .21, way slower then a 8T with the same motor............ Also to be considered is track surface and layout

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