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Monkey Wrench said:
Bingo, bingo and bingo! Cut that wire and be done with it! Nothing but a pain.
Click to expand...

Thats exactly what my lhs said last night, So i picked one up. Il post what the pipes like after i get out of school.
RR21
 
Sorry to post late, anyway i tried it last night(glow ignitor worked great) and the pipe is a bit louder but i dont give a rats ass. I thought that you could tell the difference but you know how that is. and i drove in my yard with the old one, then put the new one on and it does wheelies on contact while the other one didnt. I'm thinking about taking it to the track sunday and mess around with my buddy.Hes got a rustler with a 3.3. All he did was add some weights to the nose and its all good.
 
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erix920 said:
With your RD logics one, did you have any performance increase/decrease? Or did it stay about the same?
Click to expand...
It's very hard to tune, no low end at all, had to run it rich, rich, gained some in the top end, was so loud that your brain rattled, the stingers hung out the back of the truck like plows, the first time you land on the rear it trys to shove the pipe and header back. IMO its a wast of money, loud, gains not worth it, hung out behind the truck to far, unless it was going on a shelf qween, then it would be ok.
 
Well i took it out again today and it was running good till i took it off the jump and the tire flew off along with that cheap hex. I think I'm done till sunday now. But i think that its kinda hard to tune with the trinity though.
 
Do you have a temp gauge? you should tune by temp and blue smoke stream.......

I have found that 185 to 20 or so is good enough for me and it still leaves a blue streak.

I could go leaner but I want to make my engines last. Also the outside temp and humidity can drive you nuts as they will effect the perfect tune..

I usually try to stick with a setting I am happy with until the conditions prompt me to tweak things a bitr.....but yiou can ove tweak for sure ....spoending your whole bashing session fiddling with stuff.......believe me I have been there.


Anyway my two cents..

TalonOne out
 
yea I just got a 80 dollar one. But i got it as rich as i can and it overheats. If i richen it then its to fat.
RR21
 
What are the temps?? What plug you runnin??? What is the weather like where you are???

TalonOne
 
TalonOne said:
What are the temps?? What plug you runnin??? What is the weather like where you are???
TalonOne
Click to expand...

The temps are like 256 real rich, I'm running os plugs, and the
temperature her is about 35 degrees.
RR21
 
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Something is wrong.....have you checked out the clutch lately. You are spinning that engine way to hot. Does it take off right away or do you have to juice it to get it going???

I have been learning the hardway about bad clutches and slipper nuts and that sort of thing. But if it is 35 outside and yu are running that thing at 256degrees something is wrong.

Are you sure you are not confusing clockwise and counter clockwise on the HSN???? I ask because UI did it once and threw a rod in my 3.3. Now Traxxas replaced it as a favor.....but I learned my leesson.

So I would set back to factory on all. I leave my idle just an 1/8 of a turn past the caseing.....see the manual. then run it and temp it evey two oer three passes after warned up. Adjust first to the riuch side so you see a thick blue smoke trail.


Then bring it lean (counterclockwise) one hour at a time (yes I mean barely any at all).

Temp it then after two or three high speed passes. DO NOT let It get over 220 degrees.......lower if you find a good punch and top end.

I never mess with the lsn....but that is just because I am not done trying to tune the top end ;)

Seee what that does.....but before you run it again I would pull the engine and make sure you do noit have a burnt clutch.


TalonOne Out
 
I haven't read this thread much at all except for the last few posts but 256 is not hot. My 2.5 ran at 250-260 all day long. My OS ran at about 250. If your running 250-270 but still leaving a good smoke trail, your fine.
 
jetmechG550 said:
I haven't read this thread much at all except for the last few posts but 256 is not hot. My 2.5 ran at 250-260 all day long. My OS ran at about 250. If your running 250-270 but still leaving a good smoke trail, your fine.
Click to expand...

Yeah but then it overheats and shuts off
 
With the engine warm, do you have any compression? Is it easy to turn the flywheel over? Don't burn your fingers but you need to check it warm, if it runs until it gets to a normal operating temp then dies it's not looking good, or at least from what I am reading it doesn't sound good. If it spins easy then your sleeve is most likely worn out. This could be caused from a number of things and overheating several times is one.
 
I read somewhere on here that you could have a sleve pinched. Who does this and how much is it. Just wondering because this could be something to consider.
 
it is a circular device that fits your sleeve. Then a allen screw that
you tighten and thats how they pinch it. Hope that helps
RR21
 
racing revo #21 said:
it is a circular device that fits your sleeve. Then a allen screw that
you tighten and thats how they pinch it. Hope that helps
RR21
Click to expand...

Those are used if you don't really care about the sleeve.

www.rayaracing.com does it and OS Rocket does it.

If you have OS Rocket do it, ask for a mild pinch if it's a pullstart engine your getting done. He pinches tight.
 
Those rings you buy on eBay are the cheap and improper way to pinch. While they do work (not as well as having it done right) you're better off getting it off to someone that does it right like Olds suggested. Compare the cost though, shipping + the pinch to the cost of a new p/s combo which can be had for a 2.5 for about $50
 
OSRocket and Ray charge $20 shipped.

Granted, it's considerably more cost effective on more expensive engines or sleeve sets, but still, it saves you $30. That's enough for another pinch.

I had it done by OSRocket on an OS 21 RG w/PS. He did it way to tight because he didn't know it was a pull-start. That's why I said let him know. But it's run like a top since I got it back. I've put about 4 gallons on the pinch so far. I put 12 gallons in the piston/sleeve prior to getting it pinched. It's a backup engine now though... unless I get a BB kit for my revo.
 
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Huh cool maby ill try that then because i really dont want to fork over the money for a os. And that might inprove my 2.5s porformance. Thanks!
 

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