To Mod or Not

[bc24fl]

What do guys think about getting your engines modded? Worth it or not for a racing application?

[cold_reboot]

Depends on the engine. I wouldn't mod a RTR engine since most of them are sport engines. The mod will probably cost you more than the engines worth and the gains may not be all that great. If you want to notice a real difference just buy a "race" engine. You'll get more perfomance out of it running stock than a modded RTR engine. Go's are pretty popular now-a-days. I'm thinking about trying a Go or a OS 28XZ...in a 28 anyway. .21 wise I'd like to try an RB C6 or one of the .21 Go's.

If you want a cheap engine that runs ridiculously well for the price you paid, try an LRP Spec 3. I have the LRP Spec 3 Truggy in mine right now (had originally bought it for the TTR but used it in the Caster since I already had the engine and am selling the TTR). The LRP is stupid fast and has so much torque it almost flips my K8T over backwards when the tires bite, and thats gassing it when it's already moving, not standing still. I don't think I'd use it for racing tho...smooth power is faster in a race than stupid power. As far as stupid power go's...you can also get a RB TM928...I hear they are good about ripping the tires off of the rims lol, but they'll run you about $260+. The 200 dollar Go's are doing extremely well from what I've read.

[bc24fl]

Yup that was the other engine I wanted "LRP Spec 3". Read alot about it.

Aren't there adapters for engines that will make it smoother so you could have the best of both worlds (race n bash)?

See the red and blue adapters for the os engine via link below:
http://www.towerhobbies.com/products/os_engines/osmg2074.html

[vnmsgt]

Yup that was the other engine I wanted "LRP Spec 3". Read alot about it.

Aren't there adapters for engines that will make it smoother so you could have the best of both worlds (race n bash)?

See the red and blue adapters for the os engine via link below:
http://www.towerhobbies.com/products/os_engines/osmg2074.html

Yes those are carb restrictors and can do exactly what you said. Go makes them and they are all aluminum. I am using one in my Go .21 7-port right now.

[razzor]

Id say go with the power you can handle !!
A lot of motors have options for different carb venturis and this can help with fuel economy and less top end power but sometimes adds to your woes with more bottom end response.
Possible solutions for making the motor more driveable is to use a larger clutch bell to smooth out power band but if having a heavy finger then this might be hard on clutch life.
The next option is to dial down the throttle speed or exponential to have a smoother throttle transition.
One tip we usually advise also for newbies is to put a piece of medium density foam between the throttle trigger and handle of radio that way you have to squeeze the throttle for more but slower. Makes a differnece for our onroad racing newbies.

Then the most important tip of them all "PRACTICE makes perfect !!!!"

[cold_reboot]

Yeah I can't speak for the Carb restrictors...they are in the box lol. Had a Losi that needed a lesson taught to it. Guess I can break um out and try um now.

[bc24fl]

One tip we usually advise also for newbies is to put a piece of medium density foam between the throttle trigger and handle of radio that way you have to squeeze the throttle for more but slower. Makes a differnece for our onroad racing newbies.


Wow, this is really good, thanks!

[bc24fl]

Yes those are carb restrictors and can do exactly what you said. Go makes them and they are all aluminum. I am using one in my Go .21 7-port right now.

vnmsgt, do you have a link to the manufacturer... google didn't return anything relevant. Also which models do you have in stock currently?

[vnmsgt]

vnmsgt, do you have a link to the manufacturer... google didn't return anything relevant. Also which models do you have in stock currently?

I do not know of the official Go tech website. I just get them from the GO US distributor. I have sold most of what I had right now. I currently have left a Gotech .21 7-port and a Gotech .25 6-port. I should be able to make another order this week when my dist. gets there next order in. Other motors were on order with them. I am getting 2 .21 3-ports another 2 .21 5-ports and maybe a .28 6-port next order. If you are interested in a particular one let me know and I will order a extra one of that so I do not run low on what I am getting in.

[cold_reboot]

Started mine this afternoon and tooled around the yard for a while (till my receiver battery went flat). First time i've ran it with the new wheels/tires/Big Bores on it. Big Bores definately settled it down. Doesn't violently try to flip over backwards like it did with the stockers on it. It doesn't bounce on the little stuff either, just soaks it up and keeps on haulin. Seems like every little thing I do is noticable on this Truggy, performance just keeps getting better and better.

[bc24fl]

I do not know of the official Go tech website. I just get them from the GO US distributor. I have sold most of what I had right now. I currently have left a Gotech .21 7-port and a Gotech .25 6-port. I should be able to make another order this week when my dist. gets there next order in. Other motors were on order with them. I am getting 2 .21 3-ports another 2 .21 5-ports and maybe a .28 6-port next order. If you are interested in a particular one let me know and I will order a extra one of that so I do not run low on what I am getting in.

vnmsgt, sorry, I need to do more research about GO engines before I can make a rookie decision :confused:. I also would like to get an official race done with the stock K8T engine. I'll let you know soon... thanks again bro!

But I may have another customer to send your way for a go engine so please send me the prices for those you have in stock.

Thanks!!

[cold_reboot]

Go's are pretty awesome, italian performance at a taiwanese price. My next mill will more than likely be a Go. I'm not ready to plop down 320 for a OS 28XZ just yet no matter how much I think I need one.

[BigC123]

I run the Picco 28 EVO and it is one bad motor. It has more power than anybody needs. 195.00 at Nitro House.com

[cold_reboot]

Yeah Picco's are good, but are known for carb leaks. For someone new I wasn't going to recommend an engine where he'll likely have to chase a tune and air leaks. Granted if he sticks with this hobby he'll likely start sealing all of his engines when he gets a little more time under his belt. Vnm sold his Picco after only a handful of tanks because of the leaky carb, if you watch one of his video's on youtube you'll hear it go lean after landing a jump...he's not out of fuel...he has an air leak. Good engine yes, but thats why I wouldn't recommend one right off the bat.

[cold_reboot]

Make sure you check on whats legal where you'll race before you invest money in an engine tho. Thats why a lot of these guys are running .21's, 28's aren't legal. But a good .21 will outrun a .28 on a track anyway. If you do want to try the LRP Spec 3 I'd say go for it, for the performance you get out of it it's worth the money (and the Truggy version comes with three carb inserts). You can get um at Tower for 150 with a coupon code. Course for 50 bux more you can get a Go and Fahgedaboutit. There are a lot of engines at 200 and below that will blow your mind.

[vnmsgt]

I hated that Picco! My friend who bought his Picco .28 the same week I did had the same problem and we both sold them on ebay. Spent hours chasing our tales and sealing the motors everywhere and still did it!

[skeller]

The '08 model Go's are awesome...I'm running the new 3R modded by Pro Twister Mods and it is badass.

[razzor]

Down here by us Go hasnt been that good as most guys have been replacing there motors 2/3 a year or rebuilding.
They are priced well and run very well too.
If there is one motor that has really made a impression has been the Axe Motor Rossi sport, its a.21 7 port engine that goes for around 180 - 200US but its got so much torque that it makes a truggy haul big time.
The Axe .25 is just as good and they have a excellent life span if looked after.
Only niggle with them is they take around 5/6 liters of fuel to break in well.
My truggy motor is over 90 liters through it and my last Cobra had just on 35 liters before i sold it.
I will be running a old Collari XS400 for teh time being and the coming nats after that Cobra EvolutionX :)

At te end of teh day most motors work great just need to learn to tune them well and maintain them with parts support the next important factor.

[bc24fl]

Make sure you check on whats legal where you'll race before you invest money in an engine tho. Thats why a lot of these guys are running .21's, 28's aren't legal. But a good .21 will outrun a .28 on a track anyway. If you do want to try the LRP Spec 3 I'd say go for it, for the performance you get out of it it's worth the money (and the Truggy version comes with three carb inserts). You can get um at Tower for 150 with a coupon code. Course for 50 bux more you can get a Go and Fahgedaboutit. There are a lot of engines at 200 and below that will blow your mind.

Last time I read the roar rules it says that .28 are legal in the truggy class. Is that not the case?

[cold_reboot]

I haven't read the roar rules as of late. But keep in mind that a .21 has better fuel economy than a .28, generally tends to be faster on the track (they have more tractable power usually) and revs higher than a .28. Nothing wrong with running a .28, just make sure your local track(s) where you plan to race allows them in your class. If you end up needing a .21 don't think your taking a hit in performance with a .21. Logic tells you Bigger > Smaller. But Logic doesn't always win =)

[bc24fl]

I keep here that but it doesn't register in my head. A truggy is about 2-3 pounds heavier than a buggy with different gear sets. Wouldn't it balance the truggy out better with a motor with more torque like the .28? If not then what's the purpose of a .28 ... bashing only?

[vnmsgt]

Well the .28's used to be the choice for truggies but as of maybe a year ago .21's have gotten alot better and more power than before without sacrificing fuel economy. That is why .21's are more popular now. Longer run times and smoother power and almost as much as a .28 now. Most everywhere should accept a .28 in a truggy because that is what they always ran before.

[razzor]

Key to using a .21 compared to a 28 is better economy, smoother power band and less torque.
The .21 truggies are always faster at club and nationals events due to the above making them more driveable.

Even in MT class the old Savages are faster than the new big block ones.

[bc24fl]

Ah ok understood. Thanks guys.