JDM got it right the first time!
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Senior Member
Joined: Jan 2004
Posts: 571
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From: Colorado Springs, CO
JDM got it right the first time!
I usually don't write reviews on tuners especially since my truck has only had two; Troyer and now JDM. My truck is a 2008 Roush blown 5.4l running 8psi, long tube headers, dual e-fans, Roush exhaust, and all were installed/tuned by Troyer.
I moved to CO about 4yrs ago and could never get the Troyer tunes down so I switched to JDM. Nick at JDM answered all my question and since I'm not the smartest when it comes to tuning he had to do some hand holding. I live at 6500ft elevation and the first tune I got from JDM was pure money. Took it to a dyno here and after data logging and sending the info back to JDM they said everything looked good. Said I could even move back to sea level without much of a issue if any since they tune OEM.
Not only does a OEM style tune save me money but I don't have to keep switching tunes. Kudos to the guys at JDM for making a legit tune at such high elevation in one shot! I lost a TON of power moving from sea level to here but it is what it is.
I moved to CO about 4yrs ago and could never get the Troyer tunes down so I switched to JDM. Nick at JDM answered all my question and since I'm not the smartest when it comes to tuning he had to do some hand holding. I live at 6500ft elevation and the first tune I got from JDM was pure money. Took it to a dyno here and after data logging and sending the info back to JDM they said everything looked good. Said I could even move back to sea level without much of a issue if any since they tune OEM.
Not only does a OEM style tune save me money but I don't have to keep switching tunes. Kudos to the guys at JDM for making a legit tune at such high elevation in one shot! I lost a TON of power moving from sea level to here but it is what it is.
Senior Member
Joined: Apr 2008
Posts: 1,053
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From: BC, Canada
Every 1000ft of elevation will loose 10hp apparently.
Mine made 11 psi on the Dyno at 3000ft but barely makes 10psi here at 3700ft.
That's why I had it RR tuned as we encounter +35 <> -35C
JDM was an option but Iam glad it was rolled.
Mine made 11 psi on the Dyno at 3000ft but barely makes 10psi here at 3700ft.
That's why I had it RR tuned as we encounter +35 <> -35C
JDM was an option but Iam glad it was rolled.
Thread Starter
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Senior Member
Joined: Jan 2004
Posts: 571
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From: Colorado Springs, CO
Mine took about 3 weeks. Still better than the typical 6 month Troyer turn around.
Technical Article Contributor
Joined: Apr 2009
Posts: 10,697
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From: In the fast lane from LA to Tokyo...
I usually don't write reviews on tuners especially since my truck has only had two; Troyer and now JDM. My truck is a 2008 Roush blown 5.4l running 8psi, long tube headers, dual e-fans, Roush exhaust, and all were installed/tuned by Troyer.
I moved to CO about 4yrs ago and could never get the Troyer tunes down so I switched to JDM. Nick at JDM answered all my question and since I'm not the smartest when it comes to tuning he had to do some hand holding. I live at 6500ft elevation and the first tune I got from JDM was pure money. Took it to a dyno here and after data logging and sending the info back to JDM they said everything looked good. Said I could even move back to sea level without much of a issue if any since they tune OEM.
Not only does a OEM style tune save me money but I don't have to keep switching tunes. Kudos to the guys at JDM for making a legit tune at such high elevation in one shot! I lost a TON of power moving from sea level to here but it is what it is.
I moved to CO about 4yrs ago and could never get the Troyer tunes down so I switched to JDM. Nick at JDM answered all my question and since I'm not the smartest when it comes to tuning he had to do some hand holding. I live at 6500ft elevation and the first tune I got from JDM was pure money. Took it to a dyno here and after data logging and sending the info back to JDM they said everything looked good. Said I could even move back to sea level without much of a issue if any since they tune OEM.
Not only does a OEM style tune save me money but I don't have to keep switching tunes. Kudos to the guys at JDM for making a legit tune at such high elevation in one shot! I lost a TON of power moving from sea level to here but it is what it is.
jdm also does a great job with lightnings....imo