Review: ASP Custom Tune vs. MTM: Stg 2+
09-19-2008, 06:00 AM
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Review: ASP Custom Tune vs. MTM: Stg 2+
Completely forgot to post this over here, so it's been a while since I actually got the car tuned.....
<b>The Process:</b>
The two most important benefits of a custom tune is that it's tuned for what you want to see, and specific to your car.
The more you modify your car, the more likely it is that you'll be further from a car that was used to create the base code. One example of this is the cat-back exhaust system I'm using: VAST Performance "Piggie pipes" and a Forge-Milltek exhaust. By adding these two items, I increased the performance of the car but I changed the car beyond what a stage 1 chip was designed for. As a result, there was a lot of performance that the MTM chip was leaving. When I originally bought the car used in '02, I went with MTM because I wanted something that gave me stock smoothness with performance gains that weren't too aggressive. Since then I've gotten hooked on the track and started to want to get even more performance out of the car.
Mark began the process with first talking to me about what I wanted to get out of the tune and what levels of boost I was comfortable seeing. We settled on something more aggressive than what I had now, but still focused on that same smooth power delivery that MTM has. From here it was time to strap the car to their Mustang 4wd Dyno and begin with a baseline.
One of the real advantages of ASP is that Mark has the ability to customize code in real time using data obtained from the dyno runs. Small corrections were made time and time again as he modified the timing and requested boost. After a few changes, the car was run again on the dyno and the process began again.
At the end of about two hours spent perfecting the car, a final run was made.
<b>The Results:</b>
To be fair, it's not fair to compare an off-the-shelf chip with a custom tune, but in terms of my overall enjoyment of the car, it's through the roof better.
Mark did an absolutely amazing job smoothing out the power delivery, improving timing and the actual vs. requested boost curves. Dashed lines are the ASP tune:
<img src="http://pictureposter.allbrand.nu/pictures/miceli28/s4/asp_tune.JPG">
At Watkins Glen later that month the changes made were incredibly noticeable. Power delivery came on must earlier than before and the increased power and torque especially in the 3500-4500 rpm range really improved the ability to pull out of corners.
<b>Final Thoughts:</b>
This is something I'm now convinced of. If you're car is modified even with just downpipes and an exhaust, it really pays to have something created just for your car.
To Mark @ ASP - thanks so much for the dramatic improvement. It was fantastic at the track even more than I had hoped for.
<b>The Process:</b>
The two most important benefits of a custom tune is that it's tuned for what you want to see, and specific to your car.
The more you modify your car, the more likely it is that you'll be further from a car that was used to create the base code. One example of this is the cat-back exhaust system I'm using: VAST Performance "Piggie pipes" and a Forge-Milltek exhaust. By adding these two items, I increased the performance of the car but I changed the car beyond what a stage 1 chip was designed for. As a result, there was a lot of performance that the MTM chip was leaving. When I originally bought the car used in '02, I went with MTM because I wanted something that gave me stock smoothness with performance gains that weren't too aggressive. Since then I've gotten hooked on the track and started to want to get even more performance out of the car.
Mark began the process with first talking to me about what I wanted to get out of the tune and what levels of boost I was comfortable seeing. We settled on something more aggressive than what I had now, but still focused on that same smooth power delivery that MTM has. From here it was time to strap the car to their Mustang 4wd Dyno and begin with a baseline.
One of the real advantages of ASP is that Mark has the ability to customize code in real time using data obtained from the dyno runs. Small corrections were made time and time again as he modified the timing and requested boost. After a few changes, the car was run again on the dyno and the process began again.
At the end of about two hours spent perfecting the car, a final run was made.
<b>The Results:</b>
To be fair, it's not fair to compare an off-the-shelf chip with a custom tune, but in terms of my overall enjoyment of the car, it's through the roof better.
Mark did an absolutely amazing job smoothing out the power delivery, improving timing and the actual vs. requested boost curves. Dashed lines are the ASP tune:
<img src="http://pictureposter.allbrand.nu/pictures/miceli28/s4/asp_tune.JPG">
At Watkins Glen later that month the changes made were incredibly noticeable. Power delivery came on must earlier than before and the increased power and torque especially in the 3500-4500 rpm range really improved the ability to pull out of corners.
<b>Final Thoughts:</b>
This is something I'm now convinced of. If you're car is modified even with just downpipes and an exhaust, it really pays to have something created just for your car.
To Mark @ ASP - thanks so much for the dramatic improvement. It was fantastic at the track even more than I had hoped for.
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