• Welcome to RCTalk! 🚀

    Join the #1 RC community where hobbyists connect, share, and get expert advice on RC cars, trucks, boats, drones, and more!

    • ✓ Friendly & passionate RC enthusiasts
    • ✓ RC tips & troubleshooting
    • ✓ Buy, sell & trade RC gear
    • ✓ Share builds & upgrades

Savage 25 - no smoke

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, and others.
OfnaHyper

OfnaHyper

RCTalk Qualifier
Messages
165
Reaction score
0
Points
0
Location
Hull, United Kingdom
RC Driving Style
  1. Bashing
Hey there guys. I have recently changed my stock cooling head for one of those nova race heads. My engine is the .25 HPI for the savge 25. I have noticed the engine is not emitting any smoke. It did this with the stock head also. I have fitted the 3 speed gearbox in it also. I know what your all gonna say about me runnin too lean but i am not. the normal running temp has gone no higher than 200F. If I richen it up it struggles to engage second.
Is my engine on its way out. possible air leak? In my opinion my truck is running really well but justs seem to be no smoke.

Any help or feedback as always much appreciated.
Phil
 
savage

what kind of fuel are you using and what percent nitro
what percent lubrication
 
This is off topic but how do you like the three speed? I just bought the conversion hoping for more torque on the lower end! Did it help for you? Oh, and I also run that same fuel and can get plenty of smoke out of my f4.6. How many gallons would you guess has been run through your engine?
 
MudSlinger33 said:
This is off topic but how do you like the three speed? I just bought the conversion hoping for more torque on the lower end! Did it help for you? Oh, and I also run that same fuel and can get plenty of smoke out of my f4.6. How many gallons would you guess has been run through your engine?
Click to expand...

Absolutly great. I'm probably running a too higher gear config on the spur and clutch bell. I'm running 14tooth clutch and 49tooth spur. This gives it loads of acceleration through first. I've adjusted it so it changes quite quick into second then a longer second gear. I have clocked it at 39mph. With a different gearing would prob get 5mph more. Also a stronger nitro would help. I'm not sure how much fuel its had as i bought it second hand with no history. Like i say it seems fine but just concerned about the lubrication its getting. if any LOL.
 
Last edited:
You say you have never gotten it over 200? You need to be between 230 and 260 for the best power and performance. Warm it up a bit and you should get some good smoke then. It will run better too actually.
 
forget smoke. Its a sign but not always a true indication of how the motor is running. If your temps are ok and the mill is making good power then leave it alone.
 

RC Builds

Back
Top