a little heating issue
 

hey guys i got my revo off some guy on traxxas and it came perfedctly tuned cept one problem... after about 5 minutes it gets to around 225... i dont really wanna try and tune it so is there anything i can do to help this?

bigger heat sink? diff tires? gearing? or what dont know too much about gas heating!!

o ya and its an os18 motor! lol

thanks!

225 is actually a little cold, it needs to be around 240 to 250*, but don't go by temp, tune to sound and performance and use temp for reference. That was a hard lesson for me to learn, trust my gut over a temp gun

Edit: sorry didn't read about the OS .18, not sure of the range for them, but it still applies, tune for performance

I agree - the temps are a little low - adjust the high side needle in a touch and retemp - ( the high side adjustment needle is usually close to the carb inlet ) but find the diagram of the motor online - and check - adjust it only 1 hour at a time ( i mean if the screwdriver slot you adjust on the needle is facing up and down - that would be 12:00 - turn it clockwise 1 hour ( so its pointing at what would be 1:00 on a clock ) and retest it - only adjust after properly warming it up as well..

o sweet lol... well i dont think id really need to retune it. i just have to run it a little longer! like i said i only run it for like an 1/8 of the tank before it reaches 225! i thouight that was a bad thing! i thought it was like electric motors to where you should be able to touch it for 3 seconds or something!! HAHA!! how shouild the temps be at the end of the run?

250 ish - little more little less - is fine - 300 something is pushing it -

kk sweet! im going racing today so ill see how it does!

Nitro's are different, to some extent the hotter the better

LOL, I wouldn't advise that! If you can touch a 250+ degree Nitro motor for 3 seconds, you must have some type of Kevlar skin! :005:

Once temps get in the ideal range - between 250-270 - it should basically stay there.

Just make sure you see a nice blue cloud of exhaust and temps at the 250-270 mark and you'll be golden. Although, I have no idea why you'd want to run Nitro when there's brushless stuff to run. :032: :027:

T-maxxracer,

Remember that Nitro's need tobe retuned based on weather conditions. Higher or lower humidity, higher or lower air temps, and higher or lower altitiude will all necessitate a retuning. A bit of a PITA in my opinion. I have a REVO3.3 and love it.....but the constant tuning part bugs me.

my esc is being fixed right now... member how i said the heat sink came off.. well there putting it on.. im out for liek 3 weeks. gotta have the revo as backup!

That's funny.....

I've lived for my Supermaxx/E-maxx. In fact I sold off my T-Maxx, Stock E-Maxx, TC-3, and Losi XXT.

I put the Revo3.3 on my birthday wishlist this year and my wife actually bought it for me! I was shocked.....

It's a ton of fun and seriously fast (to me anyway). I hit 50+ two weeks ago running it in the 30 degree Chicago weather and with aggressive tuneup.
The neighbors were a bit freaked out at the speed. It was an animal. Lol!

Once the Supermaxx is reassembled the REVO will be used as "backup" or maybe converted to brushless....who knows!???

i actually like the revo for diff reasons. for 1 its 4wd... i can keep it on the track lol... my 2wd rusty just spins everywhere!! i would convert the revo to brushless but the money is a KILLER HOLY CRAP!!! 200 for a motor 300 for an esc 150 per battery!! GODDAM SCREW IT!!!

ive already put 800 into the rusty!! and only 375 into the revo!! =D (i bought it for 375!!)

i like both for diff reasons. revo and bl ruisty is the perfet setup to me.

plus i like the way the gas smells lol

You could save a hell of alot of money on a BL setup...More like 90 for a motor, 130 for an esc, 200 or less for 2 batteries...

o... well... lol idk i like the way my revo is now! i like having a gas and electric truck.

I feel the same way, and I LOVE the smell of nitro! :027:

I have three right now. My first one is the current G2R that i race and bash, the 3.3 was my second one and its a pure racer with a center diff and rear brake, with those exceptions and a little porting its completely stockwith 40 series crimefighters for tires, I have a third revo that was supposed to be a small block killer but it got too light and became a wheelie machine, so i decided to make it a CF G2R later when i get to it

lol sounds like you have the perfect amount of cars crazyjr! i just picked up a little nitro rusty for 80 bucks right now off a freind! kinda interested to see what it can do

LOL, thats' one of the things I don't like about Nitro! Last summer I was just a bystander at the LHS races a few times and the amount of smoke from a dozen buggies was giving me a headache. And the noise! It's like an angry swarm of mosquitos on steroids! :confused:

Funny how what one person hates, another person likes...

I find Nitro a challenge, not only do you need to run it hard, you got to tune it as well

Hey, BG I know what you are saying... that's one of the bad things about making a BL 1/8 for racing: you have to put up with the carnage that is 1/8 scale :)

I kinda like the sound and smell of a lone nitro (if it's mine :) )but a whole track full of them can be overwhelming....

Yeah, a single Nitro is OK. It's when you get a bunch that it starts to get aggravating.

GD: (BTW and off topic) Why is it that many of the buggies seem to get stuck so easily?? I'm sure if the driver was good enough to avoid getting in that predicament, it wouldn't be so bad, but whenever I'm just practicing at the LHS track, it seems that they get stuck on those PVC rail thingies a LOT! The Revo hardly ever seems to get stuck unless it's on its lid. :) I'm just wondering if I should expect that too when I get my buggy done because I don't feel like walking up and down the drivers stand incessantly! :) Is it because of the center diff??

Yeah... I'd say the center diff is part of it. But your Revo also has a little more ground clearance to work with :)

That's true too. Plus, reverse helps too I bet.

OK, sorry for the hijack; Now back to your regularly scheduled thread. :)