whats a good engine?

[pissant]

whats a good engine for racing, but easy to break-in and tune. I am ok at engines, but not the best. What do you guys recommend? :shrug: I am also getting the mp777

 

[shadey26 ntc3]

O.S. are good and easy to tune check out there web site! I run run a hyper 7 8 port and it is fine for me ! not to expensive but when it goes -2 gallons and still mad compression- I prob go novarossi , they make mad power for my onroad so I got to try it in the dirt !

 

[AC48]

If you can afford it, I hear great things about this engine:

http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXFPY1&P=ML

 

[pissant]

yea ac48, thats the engine i was thinking about getting

 

[CorradoPsi]

i like my OS vzb v-spec. sick power and so easy to tune. the std vzb is a powerhouse to and also easy to tune but less $$$. if your looking for something a lil on the cheap, surprisingly powerful, reliable and easy to tune. try looking around for a modified OS RG. if you can't find one, i know that if you email andy brown he will mod one for you. there are a few other guys that do them as well.

 

[Hypedonrc]

I have an Os VZB, and am very pleased. I've driven 8 ports (not the race version) and it is all you need to learn. Also driven a P5, and liked it aswell, but would suggest the OS for easy tunability. I'd like to have a V-spec for my next buggy. Like that they come with carb inserts that could also help tone the power down a little untill you get used to it, and would suggest 20% for a while. At least the first gallon, since you should use it to do brake in anyway. Just my $0.02

 

[El Pirata]

whats a good engine for racing, but easy to break-in and tune. I am ok at engines, but not the best. What do you guys recommend? :shrug: I am also getting the mp777

How much are you willing to spend and what size engine are you looking for? You can save your money and get a K-Mart engine that could be a nightmare to tune or you can fork out the big bucks and buy and high end engine that should be a breeze to tune. You could also get a .21 all the way up to a .28 or beyond if you really want to do a little modifying.

 

[WoodaleRRt55]

I'd reccomend the RB S5. It's reliable and plenty fast.

 

[mikeburgin]

I recomend the Rb concepts ws7 Easy to tune and youll never find more power, the os motors be wary of, some people are having problems with there motors not lasting my rbs have probably done about 20gallons and is still going strong, but they are a little more pricey than the o, but the worlds results speak for them selves RB RB RB RB
I'm switching one of my cars to the nova 421b so wtach this spce ill let you know how they go

 

[Hypedonrc]

I recomend the Rb concepts ws7 Easy to tune and youll never find more power, the os motors be wary of, some people are having problems with there motors not lasting my rbs have probably done about 20gallons and is still going strong, but they are a little more pricey than the o, but the worlds results speak for them selves RB RB RB RB
I'm switching one of my cars to the nova 421b so wtach this spce ill let you know how they go

Come on 20 gallons? That sounds a little exaggerated to me. I think OS had some problems in the early VZB like I have, but must have been corrected since mine, and two others are running strong at 3-5 gallons depending on which one we are talking about. Also OS recomends a higher oil content like you might find in Trinity Monster, or as I use Odonnell, so maybe the problems with the early ones was just racers leaning out their 8% oil 30% nitro fuel, and running the poop out of it.

The RB is a very nice engine from what I know, but I've never had one so I can't comment on specifics, but I dought it will last 20 gal. Maybe 20 quarts (5 Gal.) and it definately should. I suppose the are exeptions good and bad, but if anyone made an engine that lasted 20 Gal, and had good power for a reasonable price, then noone else would be making engines. Again just my $0.02

 

[mikeburgin]

I kid you not, my motors have just finished there second season! i practice lots and put through about 5 ltrs every time i do (rc-nutter) they have done about 20 45 min mains and a whole heap of heats 4.45ltrs to a gallon, Id shoot my self if you paid 750 for a motor and then it poop its self after run in we do a run in for about 3 ltrs and still rich for a while, with a proper runin in fuel to inpregnate the motor with oil, must use castor if not youd never get your motors to last, after all they are designed to run on castor not synth.
I see there alot of you that are stoked with getting your motors to last 2 gallons of fuel EEEEEEKKKKKKKKKK no thanks i wouldnt buy that motor again!
my cars are track cars only, i dont run them just to jump or thrash it's all about lap times, so there never held wide open for any great peiod of time, just down the straights basically,
Over here the VZB is starting to become one of the more popular motors besause it is one of the cheaper high performance motors, but the guys that are running them are finding them hard to tune due to the 3 needle setup they have on then, maybe thats why there not lasting, they seem to run very lean up high and rich down low, there is one over here how ever that has lasted and is indeed very quick, alot of guys over here run the l-Colari motors cause they are cheap and give good milage and performance, but there still no RB.......... hope that clears up your sceptisism hyperdonrc

Thanks Mike

 

[vbgagnon]

I'm with hyperdonrc 20 gallons sounds way way way high. Let me guess...Your compression is like new? What RB are you running that it cost you 750?

 

[mikeburgin]

No there almost worn out now but still competetive, i run the ws7 remember its kiwi dollars 66us cents to $1 i just removed one of the compression shims the other day, most guys are getting serious ltrs out of an rb over here, maybe our tracks arent as hard out as your or what, remember though that the biggest killer of motors is over tuning, if you keep the heat down the motor will last, 100-120 centigrade is all you need any higher and it does damage, must be castor oil not synth. i run three of these and havent had any problems with them!

 

[pissant]

ok thanks guys i will prob go with the rb engines, since i have heard some good reviews about them, also iam going with a .21 engine and really no price tag, but not too $$$$

 

[El Pirata]

Sky loved his Hyper 21 8 port, you might want to give that a whirl.

 

[CorradoPsi]

ok thanks guys i will prob go with the rb engines, since i have heard some good reviews about them, also iam going with a .21 engine and really no price tag, but not too $$$$

is dad buying this too?

 

[Hypedonrc]

I kid you not, my motors have just finished there second season! i practice lots and put through about 5 ltrs every time i do (rc-nutter) they have done about 20 45 min mains and a whole heap of heats 4.45ltrs to a gallon, Id shoot my self if you paid 750 for a motor and then it poop its self after run in we do a run in for about 3 ltrs and still rich for a while, with a proper runin in fuel to inpregnate the motor with oil, must use castor if not youd never get your motors to last, after all they are designed to run on castor not synth.
I see there alot of you that are stoked with getting your motors to last 2 gallons of fuel EEEEEEKKKKKKKKKK no thanks i wouldnt buy that motor again!
my cars are track cars only, i dont run them just to jump or thrash it's all about lap times, so there never held wide open for any great peiod of time, just down the straights basically,
Over here the VZB is starting to become one of the more popular motors besause it is one of the cheaper high performance motors, but the guys that are running them are finding them hard to tune due to the 3 needle setup they have on then, maybe thats why there not lasting, they seem to run very lean up high and rich down low, there is one over here how ever that has lasted and is indeed very quick, alot of guys over here run the l-Colari motors cause they are cheap and give good milage and performance, but there still no RB.......... hope that clears up your sceptisism hyperdonrc

Thanks Mike

I'm not doubting the RB, just saying no way on the 20 gallons. As I said, I'll give you 20 quarts (5 gallons) I'll even give you 20 litters (not much differance if I did my math correctly = 5.26......... gallons)

I'm also not claiming the VZB to be the best engine in the world, just that it has gotten a bad rap from the early ones (so I hear) and as I beleive , the bad rap is from people misstunning it. Is "misstunning a word"?

My suggestion to any one with a three needle set up like the VZB is to leave the middle needle alone. As I understand it it is for elevation calibration, and not for tunning.

Also on the VZB subject, Has anyone hear had one of those "bad engines"?

I don't know alot about the colari. If they make differant models or not I don't know. What I do know is one guy at our local track has one, and it is most deffinatly not cheap, and an extreamy fast engine. Both low end grunt that makes my VZB look like an RTR engine, and top speed to go with it. I think someone said $550 or so American. All I know is that on the tight tracks I run the VZB is a little more power than I need, so I'm not too interested in something more powerfull.

On that note, did anyone see the RC Nitro artical that claimed the VZB V-Spec to be the most powerfull .21, and I wonder how it stacks up to engines such as the colari mensioned above?

 

[1meathead]

MAC Stock! 209.00 on sale now! The people are in the US and you can call or email for help! By far the best customer support in R/C! Ask at the track in Denver they will tell you what they and I think of the Mac engines. At Rat the RB C5 maybe a few ws7, Sirio Kanai, and O.S. VZB are the big ones.

 

[CorradoPsi]

I'm also not claiming the VZB to be the best engine in the world, just that it has gotten a bad rap from the early ones (so I hear) and as I beleive , the bad rap is from people misstunning it. Is "misstunning a word"?

My suggestion to any one with a three needle set up like the VZB is to leave the middle needle alone. As I understand it it is for elevation calibration, and not for tunning.

Also on the VZB subject, Has anyone hear had one of those "bad engines"?

I don't know alot about the colari. If they make differant models or not I don't know. What I do know is one guy at our local track has one, and it is most deffinatly not cheap, and an extreamy fast engine. Both low end grunt that makes my VZB look like an RTR engine, and top speed to go with it. I think someone said $550 or so American. All I know is that on the tight tracks I run the VZB is a little more power than I need, so I'm not too interested in something more powerfull.

On that note, did anyone see the RC Nitro artical that claimed the VZB V-Spec to be the most powerfull .21, and I wonder how it stacks up to engines such as the colari mensioned above?

most of this i agree with, some i dont. a 3 needle carb has 3 needles for a reason. the 3rd is to tune your midrange. it adjusts the point at which the lsn is pulled out of the spraybar. if your driving at part throttle and you have no smoke it should be richened up. if your driving at part throttle and go to nail the gas and your motor is loaded up, the midrange needs leaned out. the "trick" is that most people dont know when you make an adjustment to the mid needle you need to make and equal and opposite adjustment to your LSN. the midrange can only be properly set after your hsn and lsn are properly set because it is dependant upon both of them. as to durability issues of VZ-B's. some earlier motor had problems that were resolved. currently some people are having issues with OS's bearings, but they are few and far between. keep in mind a reputation is built on thousands of good motors and can be ruined by a handful. i have the Vspec in my Xray. its just downright insane, there is no way I'm used to it yet and i only have the 8mm restrictor in it so far. and yes, my midrange needed adjustment ;-)

if you want the collari www.r c m a r t.com has them for "cheap" and there are both 3 and 5 port models that I've seen.

if you call www.fullthrottlehobbies.com they have a special on the vspec this month for 250. i was considering picking up a second for a truggy I'm working on at that great price.

 

[MoJoe]

I'm with hyperdonrc 20 gallons sounds way way way high. Let me guess...Your compression is like new? What RB are you running that it cost you 750?

i would think he has changed the rod though. :idea: