If you have to change your engine in your RTR

[Bruiser7000]

Hey folks got a question. If you have to change your old .18 out of your RTR. do you have to go back with .18 or can you put in a .15 for example and still race RTR Stock or does it make it fall in the RTR Modified?

Thanks in advance for your help

 

[misshydro]

Hey folks got a question. If you have to change your old .18 out of your RTR. do you have to go back with .18 or can you put in a .15 for example and still race RTR Stock or does it make it fall in the RTR Modified?
Thanks in advance for your help

That would fall in to moditfide class. The RTR must have the factrory stock motor that came with it. Before there was a discusion about letting the guys who's owns proboats 1/12 hydros,to let them install the vegas.18's in there boats to compete against the Miss vegas's,But now they should be alowed to because the pro's have an .18 in there formula hydro's so they could run the new dynamite.18's in there old Buds Llumars and Elums hydro's. It realy depends on the clubs who puts on these races. Each clubs has different rules.But all must follow the NAMBA or IMPBA rule gide lines, But some might let some acception to acomadate some classes.

 

[Sean Bowf]

Hey folks got a question. If you have to change your old .18 out of your RTR. do you have to go back with .18 or can you put in a .15 for example and still race RTR Stock or does it make it fall in the RTR Modified?
Thanks in advance for your help

There are no hard rules to RTR...so what you are allowed to do would be up to the folks setting up the race. I think IMPBA and NAMBA might differ some on what they will, and won't allow for the stock class.

In my area, it has to be the original engine to run Stock RTR. They allow folks to upgrade to the stock engine in a like hull...as an example, you can take the Aquacraft .18 and replace a proboat .15 with it in a proboat hull. Or if you had an older proboat, and wanted to put the new proboat .18 in it, I think they also allow that.

Sean

 

[Bruiser7000]

So putting in lets say a Novarossi.12 in it I would me in the modified class or an OS18 even. I am unable to find parts or even entire engines for the AM Mean Machine

 

[Sean Bowf]

So putting in lets say a Novarossi.12 in it I would me in the modified class or an OS18 even. I am unable to find parts or even entire engines for the AM Mean Machine

I would gamble that an NR .12 puts out a lot more power than the stock engine...yes...it would make it a modified boat where I race at.

Sean

 

[Bruiser7000]

Well I am going to try to get replacement engine from Aeromarine. If that does not go well It's modified class here I come

with the NR12.

Thanks for your input folks.

Always appreciated

 

[Eric Perez]

Well I am going to try to get replacement engine from Aeromarine. If that does not go well It's modified class here I comewith the NR12.

Thanks for your input folks.

Always appreciated

Aquacraft .18 engines are considered compliant with "stock" motor rules. So you can swap out with aquacraft .18 and still be stock in my eyes.

 

[Bruiser7000]

Well I am going to try to get replacement engine from Aeromarine. If that does not go well It's modified class here I comewith the NR12.

Thanks for your input folks.

Always appreciated

Aquacraft .18 engines are considered compliant with "stock" motor rules. So you can swap out with aquacraft .18 and still be stock in my eyes.

O got ahold of Remi at AM today. They do have parts & complete engines just not on there web site. They are $120 he informed me which makes the AQ18 pretty darn good deal. I wonder if there are much difference between the two?

 

[vincent]

if you want to keep it still rtr class legal i would use a O.S. 18 cvrmx it will last alot longer than the AQU 18 if you want to make it one fast cat i would put an O.S. 21 vz-m. thats what i did with my mean machine went right in no problem

 

[Sean Bowf]

if you want to keep it still rtr class legal i would use a O.S. 18 cvrmx it will last alot longer than the AQU 18 if you want to make it one fast cat i would put an O.S. 21 vz-m. thats what i did with my mean machine went right in no problem

A CVRM would make it a Mod RTR where I have run at... If he wants to run stock RTR, he has to stay with an engine that comes in a stock RTR.

Sean

 

[Ron Olson]

I did a little work with a Mean Machine 18 last year, it's a dog plus a real disappointment for the money. The motor is junk and so is the radio system. Too bad really as the prototypes that I saw had me all excited. The one really goofy thing is that the propshaft is not threaded, just a piece of fuel line keeping the prop on. It sure wasn't worth the $379.00 that they want for it as you can go $100.00 less and get better.

The plusses were that the hull is well laid up, decent transom hardware and a quality radio box. The tuned pipe isn't half-bad either.

The Aquacraft engine is hard to beat for the price as it has a ton of torque for its size and turns good RPM.

 

[Bruiser7000]

yep the first thing I changed was the drive I just could not bring myself to mounting a prop I have work so hard on just to trust some fuel line tubing! I did have troubles with the carb. I could not get ti to run fat enough. Turns out I think it was suckin in air thru 2 screws that hold the carb onto engine. I used RTV to seal or so I think. I will know tomorrow if it has worked. Did not get to run it today.

 

[ww29]

o.s. made the aquacraft 18.it just dont have the o.s. name on it.why cant the o.s.18cvrm be legal?dont want to make anyone mad or start a bashing contest.

shouldnt the boats rear wings be on them the way they came out of the box to race?

 

[tampa1330]

o.s. made the aquacraft 18.it just dont have the o.s. name on it.why cant the o.s.18cvrm be legal?dont want to make anyone mad or start a bashing contest.shouldnt the boats rear wings be on them the way they came out of the box to race?

The aquacraft 18 and the OS CVRM are very different. The port layouts are different, and I know the aquacraft engine uses a steel sleeve. I'm not sure about the cvrm, but I would guess that it is a true ABC. In the begining the aquacraft engine was the OS without the name but it my understanding that they changed it to some other manuf to cut costs. That's why when you read the Miss Vegas box it says "ABC engine" but it's not ABC. Now, the only real similarity is that the cases look the same.

 

[ww29]

i have the first miss vegas that had the motor that was from o.s. but with aquacraft name on it.can i use the o.s. motor in it then? i didnt know aquacraft went to a differnt manufacturer

 

[Sean Bowf]

i have the first miss vegas that had the motor that was from o.s. but with aquacraft name on it.can i use the o.s. motor in it then? i didnt know aquacraft went to a differnt manufacturer

Again, it would be up to the club setting up the race, what they will allow. Around here (TX, KS, OK) they are all pretty much standardized.

But to me, you are asking if you can run a corvette engine against a bunch of ford escorts. If I was to guess at a HP number for the AQ engine, I would guess .7 to .8 HP. The CVRM is listed at 1.35 HP. Best speed I have seen from the AQ engine with no hull mods is about 35 MPH. Best speed I have seen from a CVRM with no hull mods is 43.6 MPH. So how fair would that be??

I have never heard that the original engine was a CVRM that was rebadged as a AQ engine...and don't think that is true. The original engine WAS made by OS, but it was NOT a CVRM...and I have never heard of that changing. I heard some hub bub about changing to different manufacturer, but did not know it had happened.

The CVRM is a great engine. Easy to tune, and reliable. I probably have about 3 gallons through mine now and it is still running strong. Most of my AQ engines die at about 2 gallons.

If you want to put the CVRM in your RTR...then buy it and do it...but where I race at, it puts you into the "Mod RTR" class...which would be the natural progression from running stock RTR. Next thing you know, you will be buying and assembling a non-RTR boat and running in other classes... That is the great thing about RTR, is that it brings new folks into the hobby.

Sean

 

[ww29]

i never said it was a cvrm.i was asking can i use the 18cvrm since both was made by same manufacture.my stock aquacraft engine runs strong.

 

[Sean Bowf]

i never said it was a cvrm.i was asking can i use the 18cvrm since both was made by same manufacture

And you have been told no a couple times... By asking if you could put it into an RTR that had an OS made engine in it and still run stock...after you had already been told that you can't run stock RTR with a CVRM, what were you asking??

o.s. made the aquacraft 18.it just dont have the o.s. name on it.why cant the o.s.18cvrm be legal

I guess I am not understanding... Seemed to me you were trying to say that you think they were the same...otherwise the question does not make sense to me...because if you know they are different, then why would you think you could put one in and still run stock RTR??

Sean

 

[ww29]

i wasnt meaning they was both same motor.i was asking that because made by same manufacture could i use the stock o.s.18cvrm in the class.sorry for confusion sean

 

[Sean Bowf]

i wasnt meaning they was both same motor.i was asking that because made by same manufacture could i use the stock o.s.18cvrm in the class.sorry for confusion sean

The .18 TZ, that has been run at over 2 HP is also made by OS...should we be allowed to run it in the stock RTR class??

As to your other question about the wing...where I have run, you have to keep the wing on to run stock RTR. Wing can come off for Mod RTR.

Sean