Originally posted by PSI Racing
Yes, I have the 2 needle carb.
When I first bought the engine it had the 3 needle carb.
That carb was giving me problems.
So I sent it to Trinity, and they sent me the 2 needle carb.
Both carbs suck.
This has been the only engine I can't tune.
Every time I try to go below 5 1/4 turns, everything goes out of wack.
So I leave it at 5 1/4.
That's why I want to know what everyone else is running,
I just want to see if I could get more power out of it.
Out of Trinity you can get something like that!!!!! The two needle carb is a piece of $%%$&.
I have my Sirio .12 EVO 2 (bought in Europe) and came with the 3 needle carb, and runs beautifull with no problems. Very stable
My settings are
HSN needle 5 3/4 turns out
LSN needle 3 7/8 turns out
Leaning out an engine does't necessary mean you will get more power, it depends on several factors combined; Compression ratio, Plug, Pipe, and correct gearing for the track you are running at.
AFM