10 Gauge
10-06-2010, 04:13 PM
I just picked this truck up, original LST with a Mach 427 on it. I am having a horrible time trying to get it to tune and run WOT. I can get it to start up and idle no problem and sometimes I can baby the throttle back and forth to get it to go wide open. I've reset all of the needles to factory settings and tried tuning it from scratch a few times now and same result every time. When I hit the throttle she will bog really bad and die, usually blowing a considerable amount of smoke when it dies, I also noticed that theres some nitro coming out of the exhaust which would indicate that it's obviously running rich. I've leaned both the HSN and LSN up quite a bit but even with it seemingly running lean I get the same problem when I go to hit WOT.
Should this engine be that hard to tune? I keep hearing these things are super easy to tune up. But I just can't get mine to transition from idle to WOT without it bogging and dieing. I've tried richer, I've tried leaner, and leaner does seem a bit better but I'm afraid to run it to lean. I think I have the HSN about 3 turns out from closed and the LSN about 1-1.5 turns out from closed. Is it safe to keep advancing these leaner and leaner?
Thanks in advance for any help, I really appreciate it!!!
P.S. I am using a brand new OS Medium glow plug and Blue Thunder Sport 30% fuel.
Should this engine be that hard to tune? I keep hearing these things are super easy to tune up. But I just can't get mine to transition from idle to WOT without it bogging and dieing. I've tried richer, I've tried leaner, and leaner does seem a bit better but I'm afraid to run it to lean. I think I have the HSN about 3 turns out from closed and the LSN about 1-1.5 turns out from closed. Is it safe to keep advancing these leaner and leaner?
Thanks in advance for any help, I really appreciate it!!!
P.S. I am using a brand new OS Medium glow plug and Blue Thunder Sport 30% fuel.