Slow 1/4 Mile in 05 E55 13.01

[NJ05E55]

I bought an 05 E55. 36,xxx miles on it and in great shape. Bought from Euromotors in MD. Love the car!
However I went to the track (Island Dragway in Great Meadows, NJ) this past week-end and the car ran like crap. My best run was a 13.01 with a 2.07 60'. Something seems wrong. This was not my first time to the track either. (I have a 90 stang that runs 12.0's) I see on drag times that these cars should run low 12's and I cant break out oh the 13's? Any suggestions or advice. Thanks Joe

[TimelessE55]

Check you IC pump...supercharger may be shutting down due to overheating.

[NJ05E55]

I hope that you are right. Only does it sometimes. I am bringing it to the dealer 2mro. I just hope they dont say they cant find what the problem is. It's actually embarrassing , I ran a SRT8 Charger and got eaten. That should not be happening!!!!!!

[Fast55]

Guranteed IC pump problem. If they "don't find anything", just replace it yourself with a Johnson pump.

[NJ05E55]

Thanks! It was the pump, even after they told me it wasnt! They said they never saw a pump go on these cars. I guess the dealer I went to doesnt see many of these cars! Thanks for the help. The car is finally running correctly!