04-05 Bonneville GXP Tuning
#21
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appointment made, meeting up with the Madtuner guy at the dyno shop April 22nd for some new tunes Note that my '05 GXP is mostly stock with the minor exception of synthetic oil, air box baffle removed and new 2nd gen COPS.
#22
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Good to hear the good news. Keep me up dated on the progress when you get done with the tune.
#23
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update on tuning, met up with the Madtuner guy but due to scheduling issues with the dyno guy we were not able to get my car on the dyno for tuning at the first appointment. However Madtuner did make a custom tune so I could see some of the potential possiblities . So... the result I would say is similar to what Juan has reported but... on the down side the gas milage did seem to drop from my normal average of 24-25MPG to 21 MPG with the new tune
This MPG is measured driving down the same road I drive every day to work and back (mostly hwy at 67 MPH) for total of 120 miles round trip per day. I drove the same as when I got my base MPG, all MPG is caluculated (which comes out close to what the gauge reports) and by filling the tank to the brim of the filler neck.
Madtuner was also working with another local person on the dyno and I
heard an initall report of some nominal performance (HP) improvements over OEM tune. Madtuner had since gone on a scheduled vacation and I have not got back with yet as both of us have busy schedules.
This MPG is measured driving down the same road I drive every day to work and back (mostly hwy at 67 MPH) for total of 120 miles round trip per day. I drove the same as when I got my base MPG, all MPG is caluculated (which comes out close to what the gauge reports) and by filling the tank to the brim of the filler neck.
Madtuner was also working with another local person on the dyno and I
heard an initall report of some nominal performance (HP) improvements over OEM tune. Madtuner had since gone on a scheduled vacation and I have not got back with yet as both of us have busy schedules.
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