02-22-2006, 11:59 PM
Join Date: Feb 2003
Hey gang. Gotta question. I ran my car today ( MTX-4 ) at my local track and noticed that my engine ( Rex RS3 ) kept on cutting off at about the 3.5 minute mark. This was after the break-in process. I tried changing the glow plug to a #7 and it did the same thing. These are some of the factors im using for this Rex .12 RS3 motor:
1) Fuel: New Byron 30%
2) Plugs: NovaRossi 6 and 7
3) Motor temps: 210-230 degrees F
The motor is new and I just broke it in today. Break-in process:
1) 2 tanks at idle with factory settings ( 15 minute cool down between intervals allowing piston/sleeve expand and contract ).
2) 3-6 tanks ( drove the car by blipping the throttle around the track never hitting full throttle while maintaining and monitoring engine temps ( 150, 160, 170, 180, 190, 200 degrees F ). 10 minute cool down between each tank.
3) 7-15 tanks: started to lean out needles while maintaining tempertures ( 210-230 degrees )
Any ideas on whats going on ? Thanks guys.
Last edited by Roger; 02-23-2006 at 09:24 AM.