What temps does you engine run at??? Highest when hot out, and colder out??? Mine runs at @260-280 ish'. These temps are a little on the rich side too (without too much power loss) although they do seem on the high side, but any richer it runs like poo!!! I know temps are a refernce point but I am curious??? Has anyone seen the 300s without damage???? I'ts on the 60s and 70s here now and they may get up there when summer comes around.

I personally like to keep my temps between 240 and 260 degrees.

I will talk with Celsious, so if you want it to F, go to: http://www.towerhobbies.com/help/convcalcs.html

I have my engine running now above 120 and i keep it below 135. When i idle, the temps drop dramatically to 100.

i like mine between230 and 250. there might be something binding on your car if there that high and you say its rich.

It rolls very smooth. A couple of my friends cars run in the 260s, they are all RB engines this may be the norm for these engines, what I was getting at was to see if this was a normal for these engines.

Mine are almost always above 260 and occasionally reach 300. I have 4 different engines. I always put it down to the type of fuel I use.
I don't worry until it goes over 300

Alright, cool thats the kind of reply I was looking for!! Thanks!!!

my TTR.28 liked to run 270 ,it lasted 3.5 to 4 gallons

I run all RB's & never run any over them over 240F. Yesterday it was around 90F outside. My C6 was never over 230F & most days it's never over 220F. Normally I shoot for around 220F & as always look for good smoke when you tune.

Ya that temp is a sign of,
bad tune,
air leak
bearings
or a weak motor on its way out

But if its running good with no bogs let it rip

definitly no air leaks, not thinking its tired either, cant even turn the engine over with my finger from under the chassis, the HSN is about 3-1/4 turns out (factory setting is 3-1/2 out) the LSN is about 4-1/4 out (factory is 5 out) it holds a tune well. I guess its gonna be ok since it sounds good and has good power, and enough smoke, but only time will tell, I havent run my C6BBII L2G past its break in, I guess when I do i will compare the temps. I do think the temps are a little high though, maybe I could richen it up a bit, I am only running in my backyard, between track time on very short grass (actually none now, in the spots tha I run it LOL) maybe that has something to do with it??? I just hate to tune to a temp.

What fuel are you running not only brand but also all so blend? This has a LOT to do with temperatures!!! I have quite a few engines with 8 plus gallons on them still running well, running temps between 240 to 280. I do not tune to any certain temperature but by performance then check to make sure the temp is with in range.

I think there's a lot of factors in the temps one runs at.....gearing, engine, fuel, glow-plug, etc. But the biggest factor for me is the type of driving I do. I do long runs where the engine is working hard and that heats it up quite a bit.

I find most of my engines run well anywhere from 240 to 260 while still being on the rich side of a perfect tune. I have had one engine (that I was experimenting with) go well over 300F many times, and hit 400F once, all with no ill effects.

I would say that as long as you have enough lubrication, the temps won't hurt it....unless of course you get way too hot and you get detonation or pre-ignition. So check for obvious smoke at WOT (a good thing)

If your engine leans out near the end of the tank, I would suggest that if a perfect tune would cause it to go over 300F, you might want to richen it so that when it runs out of fuel, it stays below 300F.

Also be wary of running a too rich LSN and over-compensating with a lean HSN. Everything looks good, but if you can drive it at WOT long enough, you will see the smoke trail vanish as the extra fuel that loaded up in the crank during idle finishes burning off. Not good.

Id freak out if my RB WS7III was to get to 300, Id tear everything apart and find out why, but thats just me. My RB S5 had almost 11 gallons through it and Im keeping it as my backup engine, I even ran a 4 hour endurance race with it and temps never got above 215 and it had plenty of power and only flamed out once.

the WS7III likes to run around 240, and I make sure not to go over that. 300 is high in my opinion, too high.

Byrons 30% race 11 or 12% lube. I also do not tune to a temp, I do the same thing you described.

46U is right on about the fuel. I first started out using 20% nitro, 18% oil Sidewinder Backyard Basher, and I could never tune right without massive overheating. I switched to Sidewinder Race (20% nitro, 12% oil) and things were much better. Those are the only two choices I have at the LHS. About 100 miles away is another hobby shop that sells Blue Thunder. It runs quite a bit cooler than the Sidewinder Race. I'm certain that other brands perform even better, but I can't get my hands on any locally.

I don't know about the 300F Morgan......not likely any engine parts will melt at that temp...but it can be an indication the engine is running too lean and not getting enough lubrication. I am beginning to agree wiht a lot of others that this temp thing has gotten way out of hand. If you know you are tuned rich (due to a good smoke trail and the fact you know you richened it from an even more agressive tune), then it should have enough lubrication and be fine.

Mind you, I srtill like to keep it between 200 and 300.......200 ensures me the sleeve has expanded enough that undue strain and wear is not an issue, and under 300 ensures me the fuel won't boil off or pre-ignite.

It's only my opinion....tis not a debateable thing

Thats what I've been saying for ages. Temps were introduced as a tuning guide for noobs, who lets be honest (and no offence, we all were once) don't have a chuffin clue about tuning engines (or starting them and keeping them running).
Once your in the hobby a while you listen and watch and hardly ever check engine temp unless your doing a break in (and then its to make sure its hot enough, not cool enough!)

Guys since we are talking abot temp. I will piggy back on this thread what temp gun is a good? I need one that I can stick in my car body hole which it is only big enough to stick the glow igniter...

I have used many different kinds of fuel. Now, I am using TQ 30%. What a HUGE difference!!!!!!!!!!!!!!!!!!!!!! Hold tune (nice temp), and runs strong and highly recommend...