swithing to higher nitro content

[blckrevo33]

when switching from 20% to 33% how much richer should i set the needles to start off with? Thanks

 

[mjneid]

when switching from 20% to 33% how much richer should i set the needles to start off with? Thanks

Every Engine, Every Climate, Every fuel is different, you'll need to test and tune your rig to your fuel in your climate.

 

[MotoGod]

If you are gonna make the swap and expect a tune change, then just richen both needles half a turn or so and start from there. You always want to tune from rich to lean and not lean to rich. Helps ease tuning BIG time.

 

[blckrevo33]

thanks guys, hopefully if i get the rest of my new fence put in today i will do the switch tonight in the first rig and see how that goes. what kind of temps should i be lookin for,i usaully keep it between 250-265 with 20%. i dont really tune to temps but i am carefull with the temps.thanks again.
I should probably give a quick explanation for my switch: a new hobby store opened about 3/4 of a mile from my house and all he has right now iss 33% byron's. so instead of driving 24 miles its a lot less time and gas lol.

 

[MotoGod]

Every engine runs different. I keep my race engines running below 240ish....but that's where they like to run. My Revo liked it upwards of 285....