That wasn't where I was going with that.... I was saying if your tune is off, its better to be rich than lean.

Ive never blown up and engine or seized a full size engine from putting oil IN it.
But I know people who thru a rod or spun a bearing from forgetting to put oil back in it after they drained it!

If changing pipes helped, maybe the old one is due for a cleaning... A clogged pressure nipple can cause tuning issues. I had that problem a while back and thought it was just a dud pipe but soaking it in glycol overnight was all that was needed.

How old is the engine? I found it took a while for my p5 to want to drop to a smooth idle right after a wot pass. If it still has pinch left you won't be able to tune out that two stage idle.

I get it, but he said he'd rather run way rich than lean and that is just wrong in all situations, short race, long race, bash, tuning, drag, screwin around, any time. Things need to be clear/correct on the forums for everyone's sake thats all.

I hear you, but you said you'd rather run way rich than lean. It would be better to run on the lean side than way rich. Just a bit confusing what you said. Tomorrow I will do some final testing geared down a bit more and hopefully voila! with the set up

What is glycol? Thanks for the suggestion Ill have to try that along with my new tank when it comes in. Engine has almost 4 gallons on it so its nice and broke in now. It still has pop and resistance when turning it over cold with no pinch. It doesnt have a 2 stage idol. If I lean out anymore the LSN and/or raise the idle any more then it will come in high for a bit then drop down. But my tune is set just before having a 2 stage idol like I mentioned in the first post. The problem is the weak and consistently decreasing idol tendency only after high speed passes but not moderate or low speed passes. After letting off throttle it drops immediately which is good but keeps dropping then dies. Since its after high speed throttle I guess the answer is right smack in the middle of my face huh? its got to be the HSN but usually its never that easy or maybe it is for experienced tuners. Im definitely gettin there

Experience tell me richen hsn few hour will cure it, and the lsn will be good or need to lean a bit

Ethylene glycol, aka anti-freeze. Most people use undiluted but 50/50 pre-mixed will work but take a little longer.

After breaking in two engines my 053 pipe was pretty gunked up from running it rich that long. So if you're pipes have some miles on them it might not be a bad idea.

The most common method is to throw them in an old crock pot and let them sit overnight or longer depending how dirty they are. I put mine out in the garage so the fumes don't bother anyone. I'd also recommend using a respirator as the fumes aren't anything you want to breathe. Sounds crazy, but it works lol

Yes, and that's not really correct. Running a bit rich is fine. Running lean is not.

hello all.

anyone know how far off a good tune is for the novarossi bonito 7 port?

conditions here in Australia are winter arouund 16 degrees through the day

using a c6 medium glow plug of coarse.

im getting ready for break in with the factory tune

I suggest c5 for break in, lean lsn 1/4 to 1/2 turn n u'r good to go. Leave hsn as it is for few tanks n start leaning it 1/8, u will be amaze with the power it produces even it is freakin rich

Im getting into nitro racing, i use to have a nitro years ago and got sick of it and got into electric. Im an ep guy but am wanting to get back into nitro for a bit of variety and fun. I just got a used Xray xt9 truggy to compliment my Xray Xb8e. I have an Alpha club racer for the time being to get into the swing of things and was going to stay with Alpha, but have been told theyre a pig to keep tune. So im looking at getting a Nova. But i cant decide between the Nova Mito 7 and the Rex legend 7. My home track is a medium size 1/8 offroad outdoor track with only 1 straight, and its not a massive straight. Just looking for a bit of guidance and input into the engines and whats better suited. Budget isnt an issue. I see the Mito has an extra 1000rpm and ceramic bearings on the rex 7. Just curious what other differences they have.
Cheers.

not into reading posts? a bit rich was never said.
lean>way rich

That is what I said and it is exactly what I ment. I would rather run way rich than way lean.

I bring up the other comment I said as well...

Never herd of a motor blowing up from having too much lubrication. Have seen tons grenade from lack of lube.

I do agree that running either at anytime sucks... but rather be too rich than too lean. Whether its a tad or a ton

What Novarossi pipe manifold do I want to use for a lot of top end? I am either going to run a P5 or a Keep Off 4 or Mito 4.

I am doing GT racing

The Alpha Club is a good engine. If I was going to compare it with other engines in its price range, the Nova P5 and Werks B2 would be right there. All about $180.
Keeping a tune has more to do with the owner and treatment of the engine that the manufacture. I have a Alpha Dragon that after the first gallon, I have moved the needle 1-2 hours just for altitude and air temp. It has 8 gallons on it. If having to move the needles 1 or 2 hours is a pig, then I hate to know what is worse

Depending on your nitro experience, and Im not trying to swing you one way or the other, but there are some engines that could be a better choice. If you are new or have little experience, you will ( and we have all done it) blow that engine up. Now, its a matter of if you want to spend $400 on a paper weight, or $200.

The Rex has a more aggressive crank timing which make it's power a little faster in the power band. Not a bad choice for a truck engine as they do carry a little more weight. The Mito is a little more smoother and the power slowly creeps up to its peak which is a little further in the RPM range but by no means is it a slow or a weak engine compared to the Rex. Its just different. If the track is open and flowing, the Mito may be better. If its tight with short straights and short run ups, the Rex may be better.

Good luck with your choice.