Background:
I have had my 03 cobra for just over a year now. It was an early 03 (built before September 02) and I have had the engine replaced once under warranty for a blown ring. The car has only minor mods. (Magnaflow Exaust, K&N CAI, Predator tune (stock). The new motor has just over 3000 miles on it has never really been driven hard. Tough, but not hard.
Anyway, I took the car down to the local 1/8 mile strip in Sunday to get a baseline before I changed to a smaller pully. I had several good runs, maybe 10 or 12, and the car did great. I noticed no problems. Never hit the redline or even came close for that matter.
The next day was a nice day so I decided to take the car to work. I started it up in the garage and all seemed fine. Same smooth idle I have been used to. When I got to the gym about fifteen minutes later I noticed a slight tick and a roughness to the idle but didn't think much of it. When I can out of the gym about an hour and 1/2 later it seemed fine. However, when I got to work I thought heard it again. The same situation continued after work and when I got home.
It seems like the motor starts to tick slightly and become rough after it warms up? Not loud like "The tick", just slightly. Is this my imagination? I can't say for sure that it wasn't there before the track. It could just all be in my mind.
Ideas?
I have had my 03 cobra for just over a year now. It was an early 03 (built before September 02) and I have had the engine replaced once under warranty for a blown ring. The car has only minor mods. (Magnaflow Exaust, K&N CAI, Predator tune (stock). The new motor has just over 3000 miles on it has never really been driven hard. Tough, but not hard.
Anyway, I took the car down to the local 1/8 mile strip in Sunday to get a baseline before I changed to a smaller pully. I had several good runs, maybe 10 or 12, and the car did great. I noticed no problems. Never hit the redline or even came close for that matter.
The next day was a nice day so I decided to take the car to work. I started it up in the garage and all seemed fine. Same smooth idle I have been used to. When I got to the gym about fifteen minutes later I noticed a slight tick and a roughness to the idle but didn't think much of it. When I can out of the gym about an hour and 1/2 later it seemed fine. However, when I got to work I thought heard it again. The same situation continued after work and when I got home.
It seems like the motor starts to tick slightly and become rough after it warms up? Not loud like "The tick", just slightly. Is this my imagination? I can't say for sure that it wasn't there before the track. It could just all be in my mind.
Ideas?
