Hello, I just purchased a 2011 Mustang GT 5.0 Manual with 3.73 rear gear with 125,000 miles. The car had a few known issues when I bought it but have fixed most of them. One major issue was a horrible misfire it developed on my 3 hour drive home. When I got home I did plugs and coils and found that the spark plug strap was COMPLETELY MISSING on the driver side front cylinder and passenger side back cylinder. So basically it was running on 6 cylinders most of the drive home? Fast forward to today, it's been about a week since I fixed that and it's been running well! No misfires and I put some injector cleaner through it as well for good measure.
Here is my question though: First and Second Gear (0-60mph) just doesn't feel as fast as it should be. I did a very quick 0-60 run and it was 7.6 seconds, although not a perfect launch I expected it to be in at least the 5s. If I floor it in 1st gear at 4k rpm it doesn't even break the tires loose with Advancetrack off. I've driven stock Chevy SS cars before and it'll light them up in 1st and 2nd. Am I expecting more out of this car than I should or am I low on power? What should I check first? I was going to buy an exhaust back pressure gauge to see if my cats are clogged. P.S. the only modification is an axle back roush. Thanks!
Here is my question though: First and Second Gear (0-60mph) just doesn't feel as fast as it should be. I did a very quick 0-60 run and it was 7.6 seconds, although not a perfect launch I expected it to be in at least the 5s. If I floor it in 1st gear at 4k rpm it doesn't even break the tires loose with Advancetrack off. I've driven stock Chevy SS cars before and it'll light them up in 1st and 2nd. Am I expecting more out of this car than I should or am I low on power? What should I check first? I was going to buy an exhaust back pressure gauge to see if my cats are clogged. P.S. the only modification is an axle back roush. Thanks!
