R/C Tech Forums

R/C Tech Forums (https://www.rctech.net/forum/)
-   Nitro Off-Road (https://www.rctech.net/forum/nitro-off-road-130/)
-   -   Engine Temp (https://www.rctech.net/forum/nitro-off-road/425505-engine-temp.html)

Shadowhope 08-13-2010 07:17 PM

Engine Temp
 
Ok so When i Run my engine it usually rind around 240- 250 when my alarm starts to go off on my SPEKTRUM Dx3S. What should my temp be around? Can it run hotter that 270? How do i cut down on my temperature?

If you can answer all 3 of these questions it would be much appreciated :sweat:

also i have a Losi 8ight 2.0 buggy

jmaxey51 08-13-2010 07:22 PM


Originally Posted by Shadowhope (Post 7802905)
Ok so When i Run my engine it usually rind around 240- 250 when my alarm starts to go off on my SPEKTRUM Dx3S. What should my temp be around? Can it run hotter that 270? How do i cut down on my temperature?

If you can answer all 3 of these questions it would be much appreciated :sweat:

also i have a Losi 8ight 2.0 buggy

it would help if we knew what engine you had...

but i highly suggest taking that engine temp thing off, its not accurate at all. My Alpha engine runs at 280-300 almost always.

WideOpenThrottle RC 08-13-2010 07:23 PM

[QUOTE=Shadowhope;7802905]Ok so When i Run my engine it usually rind around 240- 250 when my alarm starts to go off on my SPEKTRUM Dx3S. What should my temp be around? Can it run hotter that 270? How do i cut down on my temperature?

If you can answer all 3 of these questions it would be much appreciated :sweat:

also i have a Losi 8ight 2.0 buggy[/QUOTE

Motor temps can run anywhere from 200 to 280 there is no set temp, tune for best power and as long as u have visible smoke you are good. Trying to hit a certain temp will only set you up for failure.

Shadowhope 08-13-2010 07:25 PM


Originally Posted by jmaxey51 (Post 7802921)
it would help if we knew what engine you had...

but i highly suggest taking that engine temp thing off, its not accurate at all. My Alpha engine runs at 280-300 almost always.


I have the Losi 350 Engine

jmaxey51 08-13-2010 07:28 PM


Originally Posted by Shadowhope (Post 7802937)
I have the Losi 350 Engine

those usually run around 250ish. but like the other guy said do not tune by temp. i dont even use a temp gun on my engine anymore... it was making it run worse. disconnect the temp reading thing and throw it away. its not accurate anyways. (not trying to sound like a butt, but just something ive learned.)

romax 08-13-2010 07:30 PM

No magic temp . but when it gets 300 or above i start to worry . Yours is at 270 so should be o.k. As wide open said the best method is to tune by smoke & performance , then ck temp. & make sure it isn't critical .

Shadowhope 08-13-2010 07:32 PM


Originally Posted by romax (Post 7802962)
No magic temp . but when it gets 300 or above i start to worry . Yours is at 270 so should be o.k. As wide open said the best method is to tune by smoke & performance , then ck temp. & make sure it isn't critical .


ok well basically if you can tell me hot to get a fast buggy that can ge tup hills easily and doesnt overheat after 20 mins of racing (overheat as in over 300) i would be great :nod:

MotoGod 08-13-2010 07:41 PM

Unfortunately, no one can tell you how to tune. You need to be able to tell what your engine is doing...and listen to how it sounds to really tune an engine. Temp is a guide....so is smoke....but your ear and your throttle finger will be the best 2 tuning aids ;-)

You're best bet is go out and drive with someone skilled in nitro tuning and have them help you. Tuning sucks at first, but you WILL get better at it. It just takes time...

romax 08-13-2010 07:44 PM


Originally Posted by MotoGod (Post 7803002)
Unfortunately, no one can tell you how to tune. You need to be able to tell what your engine is doing...and listen to how it sounds to really tune an engine. Temp is a guide....so is smoke....but your ear and your throttle finger will be the best 2 tuning aids ;-)

You're best bet is go out and drive with someone skilled in nitro tuning and have them help you. Tuning sucks at first, but you WILL get better at it. It just takes time...

+ 1 I would also like to add that there is only so much performance you can get from the losi 350 engine . It is a good little sport engine but won't be as fast as the high end race engines . Just don't run it too hot trying to get more performance than it will give you . Good luck

Shadowhope 08-13-2010 07:51 PM


Originally Posted by romax (Post 7803016)
+ 1 I would also like to add that there is only so much performance you can get from the losi 350 engine . It is a good little sport engine but won't be as fast as the high end race engines . Just don't run it too hot trying to get more performance than it will give you . Good luck


dang so basically what you guys are saying is i have one of the crappiest engines and i need to buy a really good pro engine?

newuserlosi8t 08-13-2010 07:51 PM

how many gallons are on the motor i had a losi 350 ran hot took it apart sealed it up ran 240 all day long have u checked for air leaks

mudboger07 08-13-2010 07:52 PM


Originally Posted by Shadowhope (Post 7802972)
ok well basically if you can tell me hot to get a fast buggy that can ge tup hills easily and doesnt overheat after 20 mins of racing (overheat as in over 300) i would be great :nod:

Shadow, if your close to the milan tenn track stop by at one of our races, someone at the track will be able to help you with the tune......

MotoGod 08-13-2010 07:53 PM


Originally Posted by Shadowhope (Post 7803041)
dang so basically what you guys are saying is i have one of the crappiest engines and i need to buy a really good pro engine?

Nah the Losi 350 is quite a capable engine. It's not going to make you a super fast racer. Driving skill does that. If you handed Adam Drake a Losi 350 to run...he would still wipe the floor with you. It's not a rocket ship, it's just a basic starter engine. It will get you racing at a decent pace while you hone your skills....

KWT-NITRO 08-13-2010 07:56 PM


Originally Posted by MotoGod (Post 7803048)
Nah the Losi 350 is quite a capable engine. It's not going to make you a super fast racer. Driving skill does that. If you handed Adam Drake a Losi 350 to run...he would still wipe the floor with you. It's not a rocket ship, it's just a basic starter engine. It will get you racing at a decent pace while you hone your skills....

LMAO

man i loved tha part about ''drake wiping the floor with you'' very frank and honest.

LOL

Shadowhope 08-13-2010 07:57 PM


Originally Posted by mudboger07 (Post 7803045)
Shadow, if your close to the milan tenn track stop by at one of our races, someone at the track will be able to help you with the tune......

yeah man i am actually planning on comming up there tomorrow if i can actually get it relatively tuned early in the morning. Are you still having the race tomorrow?

newuserlosi8t 08-13-2010 07:57 PM

learn to tune on the 350 when u get a new motor u will know what to do and why ur doing it, like motogod said its a sport engine but will work to race a few guys have the 350 at my track.

romax 08-13-2010 07:58 PM


Originally Posted by MotoGod (Post 7803048)
Nah the Losi 350 is quite a capable engine. It's not going to make you a super fast racer. Driving skill does that. If you handed Adam Drake a Losi 350 to run...he would still wipe the floor with you. It's not a rocket ship, it's just a basic starter engine. It will get you racing at a decent pace while you hone your skills....

+ 1 . Finally someone who thinks sensible .

Shadowhope 08-13-2010 07:58 PM


Originally Posted by newuserlosi8t (Post 7803043)
how many gallons are on the motor i had a losi 350 ran hot took it apart sealed it up ran 240 all day long have u checked for air leaks

I think i am about a gallon of gas into it but i have not checked for air leaks, how would i do that?

Shadowhope 08-13-2010 08:12 PM

how would i check for air leaks?

KWT-NITRO 08-13-2010 08:14 PM

http://www.youtube.com/watch?v=epEGetU7NFU

99problems 08-13-2010 09:35 PM

Depending on how the engine performs at 270 yes it can be ran. As long as you have a nice smoke trail when you accelerate and your car is not hesitant off the line your temp is fine. But if your car begins to have a really high pitched bog noise then you might want to richen it up a bit.

dayglo33 08-13-2010 11:41 PM

wow

heavyjeffd 08-13-2010 11:49 PM

I had a RTR Losi 8ight 2.0 and the stock motor liked to run (for me) around 260. Try as I might to get it to run cooler, I couldn't with it still running well, it would end up running like shit.

I ran it at 260F for about 3 gallons of fuel before I sold it with no issues, it ran very stable.

So take that as you will. :)

NitroXray80809 08-14-2010 01:04 AM

1. Dont tune by temp but watch ur temp, Im not sure what the losi engine runs at but tune where its got good power band and runs the way u want it.

2.The on-board temp isnt 100% accurate to a temp gun i would just use a temp gun and take off the on-board temp.

3. 300 degrees is way to high for any engine im sure the losi engine should only be around 260 MAX but like i said i dont know the engine at all.

NitroXray80809 08-14-2010 01:09 AM


Originally Posted by Shadowhope (Post 7803129)
how would i check for air leaks?

honestly if it has or dont have a air leak you should seal it with some engine sealant, Lucky 7 rc makes some for like 7 bucks or so and you can buy car stuff also from like kragen etc etc and you wont have to worry about the air leak again.:nod:

jmaxey51 08-14-2010 06:30 AM


Originally Posted by NitroXray80809 (Post 7803745)
1. Dont tune by temp but watch ur temp, Im not sure what the losi engine runs at but tune where its got good power band and runs the way u want it.

2.The on-board temp isnt 100% accurate to a temp gun i would just use a temp gun and take off the on-board temp.

3. 300 degrees is way to high for any engine im sure the losi engine should only be around 260 MAX but like i said i dont know the engine at all.

All Alpha engines run around 280. OS VG/RG run at 260-270, some engine do run hotter than others, def depending on elevation and humidity and other factors. i have seen quite a few losi 350 engines run around 270 and some run at 220. it just depends, if it runs great at 270 and has good smoke and power, it wont hurt it.

D8 08-14-2010 07:08 AM

none of my engines ever run over 240 :D

NitroXray80809 08-14-2010 11:33 AM


Originally Posted by jmaxey51 (Post 7804267)
All Alpha engines run around 280. OS VG/RG run at 260-270, some engine do run hotter than others, def depending on elevation and humidity and other factors. i have seen quite a few losi 350 engines run around 270 and some run at 220. it just depends, if it runs great at 270 and has good smoke and power, it wont hurt it.

yeah it depends on weather where i am i hardly see a car run over 220ish. Thats why i said dont tune by temp but stay around the temp range that they prefer the engine to run at, because running 20 or 30 degrees hotter than prefered will hurt the engine.

Do-Over 08-14-2010 12:04 PM

Shadow I'm pretty new too. Less than 6 months in the hobby I noticed you've made a couple threads recently. I think you'd do better to just go thru and read some of the existing threads around now and you would answer a lot of your own questions without having to make a bunch. Thats what I did. I know everyone has to start somewhere and I don't mean to shoot you down. It will just help you learn a little easier and save some of these guys patience for the really important questions. Hope that helps, there is a lot of info on here if you just start reading.

Shadowhope 08-14-2010 12:11 PM


Originally Posted by NitroXray80809 (Post 7805093)
yeah it depends on weather where i am i hardly see a car run over 220ish. Thats why i said dont tune by temp but stay around the temp range that they prefer the engine to run at, because running 20 or 30 degrees hotter than prefered will hurt the engine.


well i have a race today guys so im just gonna wing it and hope for the best with my engine :rolleyes:

NitroXray80809 08-14-2010 03:13 PM


Originally Posted by Shadowhope (Post 7805179)
well i have a race today guys so im just gonna wing it and hope for the best with my engine :rolleyes:

yeah honestly if you got a tune u like and u got a good amount of smoke coming out then dont worry about temp just take off the on board temp for the radio its no good.

Shadowhope 08-14-2010 08:13 PM


Originally Posted by NitroXray80809 (Post 7805577)
yeah honestly if you got a tune u like and u got a good amount of smoke coming out then dont worry about temp just take off the on board temp for the radio its no good.

Yeah well i got to the race early enough to practice a lilbit until it got rained out :flaming: . After about a tank of gas i was runnin round 290-300 it didnt seem like it was hurtin nothin but it ran very well during practice....:nod: just wish i coulda got to race

jmaxey51 08-14-2010 08:23 PM


Originally Posted by Shadowhope (Post 7806481)
Yeah well i got to the race early enough to practice a lilbit until it got rained out :flaming: . After about a tank of gas i was runnin round 290-300 it didnt seem like it was hurtin nothin but it ran very well during practice....:nod: just wish i coulda got to race

replace fuel lines, and exhaust gaskets. that engine shouldnt be that hot. sound like you have some sort of small air leak running that hot. i had an engine that normally runs around 220 run at 260 one day and it was as simple as a bad exhaust gasket.

Shadowhope 08-14-2010 09:47 PM


Originally Posted by jmaxey51 (Post 7806513)
replace fuel lines, and exhaust gaskets. that engine shouldnt be that hot. sound like you have some sort of small air leak running that hot. i had an engine that normally runs around 220 run at 260 one day and it was as simple as a bad exhaust gasket.


well someone at the track today said every engine runs differently so i am ok with running around 290 as long as it says around that area..... :blush:

The Working Man 08-15-2010 05:46 AM


Originally Posted by Shadowhope (Post 7806782)
well someone at the track today said every engine runs differently so i am ok with running around 290 as long as it says around that area..... :blush:

Also try to use someone else's temp gun every now and then. They change around alot from day to day unless it's a lab grade unit.

Shadowhope 08-15-2010 06:40 AM


Originally Posted by The Working Man (Post 7807692)
Also try to use someone else's temp gun every now and then. They change around alot from day to day unless it's a lab grade unit.


I use the Losi Temp Tuner

MotoGod 08-20-2010 09:44 AM

You can always test your temp gun on a pot of boiling water. Water boils at 212F ;-) So if your temp gun is right around there...you should be good. It's good to clean the lens on the temp gun now and again though. I had crud on mine and it was reading 20-30 degrees off one race weekend. Freaked me out real fast....

KWT-NITRO 08-20-2010 09:46 AM


Originally Posted by MotoGod (Post 7832185)
You can always test your temp gun on a pot of boiling water. Water boils at 212F ;-) So if your temp gun is right around there...you should be good. It's good to clean the lens on the temp gun now and again though. I had crud on mine and it was reading 20-30 degrees off one race weekend. Freaked me out real fast....

+1

mudboger07 08-20-2010 10:05 AM


Originally Posted by Shadowhope (Post 7806481)
Yeah well i got to the race early enough to practice a lilbit until it got rained out :flaming: . After about a tank of gas i was runnin round 290-300 it didnt seem like it was hurtin nothin but it ran very well during practice....:nod: just wish i coulda got to race

You'll need to retune just a tad when we r4ace on the 28th due to how the weather has been, the 350 runs good at around 240-250 at our track, and since your only on about a gallon of fuel id keep it a little rich...

Shadowhope 08-20-2010 03:15 PM


Originally Posted by mudboger07 (Post 7832264)
You'll need to retune just a tad when we r4ace on the 28th due to how the weather has been, the 350 runs good at around 240-250 at our track, and since your only on about a gallon of fuel id keep it a little rich...

could someone there help me tune it?


All times are GMT -7. It is currently 12:36 AM.

Powered By: vBulletin v3.9.3.9 Patch Level 3
Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.