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2011-2014 Mustangs
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Paxton
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<blockquote data-quote="Gruca" data-source="post: 15717016" data-attributes="member: 153163"><p>It's hard for me to say because of the amount of tuning and data logging it took after the install. My first data log with the 10psi spring ended up causing knock up top, so I switched to the 7psi spring (the only step down possible with the spring combination you get) and the car was definitely slower. So after all the data logging for that, I hit the track and confirmed my car was slower. I put the 10psi spring back and, hoping the knock was caused by something like gas, finished up the data logging again, and the knock was all but gone. I had one degree at around 7,600 rpms. Since I never spin it that high outside of the track, I just throw some octane booster in when I run it down the 1/4.</p><p></p><p>So long story short, the car certainly feels faster, but it still doesn't "feel" as fast as a PD blower car. That is only because the power isn't instant like on those setups. A down shift and my right foot fixes that pretty quickly though. The drivability is still slightly off when going from part throttle (normal driving) to 3/4ths to full throttle. This isn't an issue with PD blowers and it annoys me for sure. Sean did an awesome job making it a lot better though. My gas mileage is for shit now though. When I'm REALLY trying to get the best MPGs possible, I struggle to hit 17mpg in 6th gear at 55 mph. I'm told its a hardware issue, but I'm not convinced. The previous tuner had me around 27-28mpg. The only difference was the Tial BOV. I've replaced the fuel pump and O2 sensors and nothing changed.</p></blockquote><p></p>
[QUOTE="Gruca, post: 15717016, member: 153163"] It's hard for me to say because of the amount of tuning and data logging it took after the install. My first data log with the 10psi spring ended up causing knock up top, so I switched to the 7psi spring (the only step down possible with the spring combination you get) and the car was definitely slower. So after all the data logging for that, I hit the track and confirmed my car was slower. I put the 10psi spring back and, hoping the knock was caused by something like gas, finished up the data logging again, and the knock was all but gone. I had one degree at around 7,600 rpms. Since I never spin it that high outside of the track, I just throw some octane booster in when I run it down the 1/4. So long story short, the car certainly feels faster, but it still doesn't "feel" as fast as a PD blower car. That is only because the power isn't instant like on those setups. A down shift and my right foot fixes that pretty quickly though. The drivability is still slightly off when going from part throttle (normal driving) to 3/4ths to full throttle. This isn't an issue with PD blowers and it annoys me for sure. Sean did an awesome job making it a lot better though. My gas mileage is for shit now though. When I'm REALLY trying to get the best MPGs possible, I struggle to hit 17mpg in 6th gear at 55 mph. I'm told its a hardware issue, but I'm not convinced. The previous tuner had me around 27-28mpg. The only difference was the Tial BOV. I've replaced the fuel pump and O2 sensors and nothing changed. [/QUOTE]
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