Nitro Revo Sux

[nbcaznmaster]

I got the revo and decided to keep it nitro and it sux!! I cant get a decent run out of it!! I cant keep idle temp less then 250 degrees Feriehent. I should have converted to electric!! i regret every second of it, i spent 135 to get it up and running.

[MetalMan]

Have you tried tuning the high speed and low speed needles?

[nbcaznmaster]

everything was at factory settings, i only adjusted the higgh-speed so far.

[tonka truck]

I had a similar problem with my s-maxx when I got it in that it would run at about 270F even at 21 degrees(C) temps. I used dremel to cut out air vents and made the engine hole bigger and problem doesn't really come up any more.

It may also be that you also need to go through the adj process of HSN and LSN and idle setting. Use the manual otherwise do a search on the traxxas forum to get tips on tuning.

Don't beat yourself up its not worth it, just have another try with tuning because when the trx 2.5 is tuned it rocks. It does sound like that it is running a bit lean.

[nbcaznmaster]

well, if i rich the engine, i cant start it up. IT stinks!!

[tonka truck]

Can you describe what you have done thus far and specific problems that are happening (e.g. richen, cogs down, lean but too hot, run in procedure????) that way I can maybe of more help. ;)

Just from what you have said so far it sounds like the LSN needs to be adjusted because if that is too rich then that cause the engine to stop or bog down. If you have adj the HSN then that can sort of clear up the prob, but then as you have found it is too lean.

If it helps, it took me about 10-12 tanks before I figured out the tuning and made necessary adjustments

[RC-Monster Mike]

First nitro, I assume? There is alearning curve when you first =try to tune these motors. Have you got this figured out yet, or are you still having some trouble?

[nbcaznmaster]

still having problems, i think i'll buy a new motor!

[RC-Monster Mike]

The TRX 2.5 is an excellent motor. You may have similar troubles with a new motor, although O.S. is the easiest to tune motor I have used. I would try going to the factory needle settings on the motor and work from there. It takles a little practice to get the hang of nitro tuning.