R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Nitro Off-Road

Reply
 
Thread Tools Search this Thread
Old 04-25-2008, 12:44 PM   #1
T$
Tech Adept
 
T$'s Avatar
 
Join Date: Jan 2008
Location: Seattle
Posts: 203
Default Tuning RC8RS (.28 Pro Engine)

The manual for the engine says to start with 2 & 3/4 turns out on the high-speed and 6 1/4 turns out on the low speed needles. I did this for break-in. Then as I began to lean out the high end(in small increments) it ran hot (approx 270), but at idle still spit unburnt fuel and died periodically.

The experienced guys at my track said the low end seemed way rich, and I agreed. I turned the low speed in about 2 or 3 full turns and it runs/idles well now.

I asked Associated if the 6 turns out on the low-speed was a mis-print but they said no. However in my experience it seemed WAY rich there, and runs much better at around 3 turns out.

Anyone have experience with this engine, or any thoughts?

Thanks
T$ is offline   Reply With Quote
Old 04-25-2008, 12:48 PM   #2
Tech Regular
 
Join Date: Dec 2007
Posts: 419
Trader Rating: 22 (100%+)
Default

run it at whatever needle setting gives you the best performance.

factory settings are typically just for easy starting and break it, so noobies don't run it too lean.

one of my engine manuals said that the factory low speed needle was 8 turns out. Ya, 8 turns, the needle practially falls out. and out of the box, the low speed needle was 2.5 turns out.

just break it in using whatever method you want, then tune it til it performs well for you.
phixd is offline   Reply With Quote
Old 04-25-2008, 12:51 PM   #3
Tech Elite
 
Join Date: Mar 2008
Location: Erie Pa.
Posts: 3,323
Trader Rating: 19 (100%+)
Default

Yeah I had 1 of those, I say do what you need to get it running fine. It will make good power and hold its tune very long. TTR mills are in lots of peoples eyes one of the best RTR mills you can get.
malik is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Tuning Class..any SIFU (klang valley) offer engine tuning class??.. azmin Malaysian R/C Racers 17 06-20-2008 09:42 PM
Team Associated RC8RS RTR Drift_Buggy Nitro Off-Road 36 02-17-2008 09:37 AM
Engine Tuning paul73rc Nitro On-Road 3 11-28-2007 01:38 PM
Engine Tuning 101 (General Tuning) Kemorc Onroad Nitro Engine Zone 41 11-19-2007 06:04 PM
Engine Tuning stiffler297 Nitro Off-Road 26 10-16-2007 02:23 PM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 08:01 AM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net