R/C Tech Forums - Argus USA Engines Thread

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NZ_Basher

11-05-2011 03:54 PM

Quote:

Originally Posted by ArgusNZ (Post 9824198)

Restrictors are still just the 8mm same as before. They will ship with a T3 plug included. We had a chance to run the new motors over the weekend, they were still too new to make proper comparisons against the A52, our team drivers preferred to stick with their A52 after practice as they hadn't quite loosened up enough. I ran the A5 on finals day and liked it, the bottom seemed a little smoother than the A52 but still plenty low down and top end was good also, fuel economy didn't appear to be any better but as i said they are yet to fully loosen up.
Unsure about the B52 just yet, will have to drive it for myself, this was the tightest of the 2 motors,

The A52's were screaming, they were as fast if not slightly faster than any engine we raced against :nod:

Yeah my A52 was awesome all weekend. it holds its tune well now its had some fuel through it. As stated above, the B52 needs more running before any comparison can be made. I did run it in practice and it seemed to have plenty of potential, but I didn't want to be chasing the tune as it run in during qualifying and it wasn't performing up top because of the tightness of the sleeve & piston, so I went back to the A52. I'm pretty keen to get a B52 run in and try it, if its better than an A52 it will be an awesome engine. I had a big battle with another truggy in the final that was running an OS Speed and it didn't have anything on me on the straights and I was out accelerating him between corners. different cars and drivers, but I was still impressed

Kevin_M

11-06-2011 06:13 AM

Quote:

Originally Posted by NZ_Basher (Post 9872789)

Are your motors still stock or modified? Are you mainly running your A52 in the truggy or buggy? Is the B52 in your opinion a possible better engine for truggy or buggy?

kilfish

11-07-2011 09:09 AM

Jconcepts Clash

A52 1st place "A Main 1/8 Buggy" Jconcepts Clash Warmup race 11/05/11 Coral Springs Fl

Box Stock motor with 8 plus gallons on it (infact i was getting ready to have it pinched, but my motor guy said it was good for another race or 2) with JP3 pipe and Torco 30%. All riding in a Z-car Z-10xb on SH TQ tires.

Motor was fast car was hooked, owned the weekend. i qualed 5th, but had the fastest lap of the day. 3 minutes into the main took over the lead and that was it never gave it back form there.

pianori

11-07-2011 04:25 PM

So I have the A52 in a truggy for 3 months now. It is modified and I have about ¾ of a gallon through it.

In general love the reliability, fuel economy, and top end of the engine. Not so sure about the low end. It seems to bog down on acceleration. Not sure if it is my tune or something else. I am not a great driver as I am learning, however, I feel that it does not have enough oomph from low rpm to mid. Is it somethig I am doing?

If you would look at my YouTube post of the car running a few laps and let me know your thoughts on it.

http://www.youtube.com/watch?v=dQKp_...eature=related

Thanks.

nitroexpress

11-07-2011 04:58 PM

Quote:

Originally Posted by pianori (Post 9881481)

A correctly modified Argus should be one of the most powerful engines available. Either your tune is off or you have a lot of binding in the drive train.

hdcruzer

11-07-2011 05:01 PM

Quote:

Originally Posted by pianori (Post 9881481)

Start buy leaning the bottom a hr at a time until you get the bottom you want. After that, if the idles a little fast you can turn down your idle screw. Top sounded pretty good.

Rcrenew

11-07-2011 05:24 PM

Quote:

Originally Posted by pianori (Post 9881481)

The Argus engines have huge bottom end so It is either your tune is off, or its a clutch issue causing the bottom end problem.

The buggest issue I see with most people is guys will have the Low speed needle to lean,if you are to lean on the LSN you will have weak bottom, just like a rich LSN will. The Argus like to run a bit rich on the low speed needle. The other thing I see is guys start tuning them after 2 minutes of idling on the bench, these engines take a bit to warm up, so run them for at least 4-5 minutes on the track before really fine tuning them.

Also check your clutch. What clutch are you running and what vehicle is the Argus in?

Thanks,
Lance
RcRenew

Rcrenew

11-07-2011 05:33 PM

I just watched for video, and yes that is not running like it should.

You may know some of these or already checked but I am just listing everything :)

Re-check your tune sounds like the LSN is too lean

Check your clutch is working properly and let us know what clutch you are running.

Make sure you are running the correct clutch bell teeth( i have seen guys that did not know run 16 tooth bells on cars that take 13 tooth bells)

Make sure you dont have an air leak in your tank or fuel lines.

Here is a propely tuned Argus in a D8T http://rcrenew.com/videos.html

Thanks,
Lance
RcRenew

Herrsavage

11-07-2011 10:42 PM

My initial thought was the LSN is too lean, or the clutch is toast somehow.. More longshot maybe some thing is binding, like your brake linkage.. Those are pretty much the only possibilities(I think..)

I anyway would start buy richening the LSN..

And yeah, my stock Argus has great bottom.. Waiting for the top end to open up some..

Herrsavage

11-07-2011 10:57 PM

BTW, what's up with the B52? News, videos, updates? Want to know more.

You Antipodeans are on deck since it's winter here.. :nod:

Rcrenew

11-08-2011 09:59 AM

Still waiting on when they will be available to ship> WIll keep you posted as we hear more.

Lance
RcRenew.com

Hobbs263

11-08-2011 05:35 PM

Quote:

Originally Posted by pianori (Post 9881481)

I had a very similar problem with my A52. I kept thinking it was a lean bog. It would bog right off the bottom and the top would scream. I could back my lsn out serveral turns and it would do the same thing. I was running some vp pro clutch shoes that were very soft and did not let the clutch slip at all. I even put a brand new clutch shoes and clutch bell on and it did the same thing. I through on a losi clutch that has two carbon and two metal shoes and the problem went away!

Rcrenew

11-08-2011 05:44 PM

2 Attachment(s)

Despite the Mud, rain and adverse weather that was dished out at Delta Rc in northern california for the Novarossi Challenge . Team Driver Kris Edwards pulled of a 3rd place podium win in 40+ truggy using his RcRenew modified Argus A52 engine and sweep Exagon tires! Great job Kris!

Lance
RcRenew

Rcrenew

11-08-2011 05:48 PM

Quote:

Originally Posted by Hobbs263 (Post 9886489)

+1 :)Yep, (especially in truggy) a bad clutch setup will kill engine performance and it often confuses people becasue they are thinking it is the engine and tweaking the needles everywhere and it ends up being the clutch.

Lance
RcRenew

rcgeezer

11-09-2011 11:07 AM

Quote:

Originally Posted by Rcrenew (Post 9886528)

Thanks Lance! We had a ball running in the rain and mud, but not so much fun cleaning it up after the race. The modded Argus screamed all day long, providing great power AND mileage!! :nod::nod:

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