IASHELBYGT Posted April 15, 2011 Report Share Posted April 15, 2011 I had 4:10 gears installed this week. For those of you that have done this what do you recommend as the best way to recalibrate the speedometer? The dealer couldn't change mine because of the Shelby tune, which i figured would be a problem. I see where American Muscle sells a speedometer recalibration tool, but I'm wondering if I shouldn't just get a tuner and do it that way. See links below. Opinions and advice is appreciated. Dave http://www.americanmuscle.com/ford-speedo-tool-9410.html http://www.americanmuscle.com/x3-custom-tuner-0510gt.html Link to comment Share on other sites More sharing options...
socalwrench Posted April 15, 2011 Report Share Posted April 15, 2011 I've haven't used that speedo calib. tool. I'm not sure if it would step on your current tune. However, I would recommend getting a SCT tuner fromt Brenspeed. John at Brenspeed can give you a tuner and tune that will help pick up some more power as well as give you the ability to adjust your gear ratio whenever you like. http://www.brenspeed.com/3000a.html Link to comment Share on other sites More sharing options...
IASHELBYGT Posted April 15, 2011 Author Report Share Posted April 15, 2011 I've haven't used that speedo calib. tool. I'm not sure if it would step on your current tune. However, I would recommend getting a SCT tuner fromt Brenspeed. John at Brenspeed can give you a tuner and tune that will help pick up some more power as well as give you the ability to adjust your gear ratio whenever you like. http://www.brenspeed.com/3000a.html What about VMP Tuning? I've heard good things about Justin. Link to comment Share on other sites More sharing options...
07SGT0547 Posted April 15, 2011 Report Share Posted April 15, 2011 I have the SCT Tuner (Ver 2) from a few years ago... Purchased from Brenspeed with 3x tunes (87 Street, 92 Street + 92 Track)... Not a bad purchase, as it also allows for you to change lots of little things (ratios, rev + speed limiters, timing, etc)... Also makes the car a lot more driveable, with the HP/TQ curves a lot smoother... No real gains in either, but you will notice the improved "feel" of the car when you drive it Link to comment Share on other sites More sharing options...
socalwrench Posted April 15, 2011 Report Share Posted April 15, 2011 I can't say anything about VMP tuning. Brenspeed is a company I have dealt with before. They're always knowledgeable, and usually available. They're facility is top notch, and they've dyno tuned a lot of Mustangs with various parts. Link to comment Share on other sites More sharing options...
SteelTownStang Posted April 15, 2011 Report Share Posted April 15, 2011 Easy change w/ an SCT... and yes, Justin is one of the best. Brenspeed, BamaChips, Lund, JLT, Tillman... all good as well. Link to comment Share on other sites More sharing options...
07SGT0547 Posted April 15, 2011 Report Share Posted April 15, 2011 What about VMP Tuning? I've heard good things about Justin. Or just have Justin tune your SGT at ShelbyFest Link to comment Share on other sites More sharing options...
speedyburd33 Posted April 15, 2011 Report Share Posted April 15, 2011 You can't go wrong with Brenspeed. Their customer service is 2nd to none, and you'll like their tunes a lot too. Link to comment Share on other sites More sharing options...
IASHELBYGT Posted April 16, 2011 Author Report Share Posted April 16, 2011 Or just have Justin tune your SGT at ShelbyFest Greg, actually, that's what I was thinking of doing. Link to comment Share on other sites More sharing options...
Shelby-Don Posted April 18, 2011 Report Share Posted April 18, 2011 Greg, actually, that's what I was thinking of doing. Dave, If you haven't made the speedo change before leaving for Shelbyfest just be cautious when driving so you don't get a ticket on the way. Don Link to comment Share on other sites More sharing options...
07SGT0547 Posted April 18, 2011 Report Share Posted April 18, 2011 Greg, actually, that's what I was thinking of doing. Let me know if or when you schedule it and I will try to take some Link to comment Share on other sites More sharing options...
mark1 Posted April 19, 2011 Report Share Posted April 19, 2011 I had 4:10 gears installed this week. For those of you that have done this what do you recommend as the best way to recalibrate the speedometer? The dealer couldn't change mine because of the Shelby tune, which i figured would be a problem. I see where American Muscle sells a speedometer recalibration tool, but I'm wondering if I shouldn't just get a tuner and do it that way. See links below. Opinions and advice is appreciated. Dave http://www.americanmuscle.com/ford-speedo-tool-9410.html http://www.americanmuscle.com/x3-custom-tuner-0510gt.html I went with the 4.10s recently and struggled with the same decision. I finally went with Bama Tunes (now American Muscle). I researched this thread extensively and both Bama and Brenspeed were highly recommended but it seemed like Bama had a slight edge in product satisfaction. I got 3, 91 octane tunes, a street, performance and race. I started with the street tune, drove it for a couple of weeks, did the same with the performance tune and now am driving the race tune. All tunes feel way different than stock. The only negative I have experienced is with the street tune. Sometimes on slow takeoffs, my car would lurch or jerk unnaturally. Mostly happened when it was cold but it was really disconcerting, especially for passengers. No problems at all with hard launches. This annoyance is not really noticable on the street and race tunes. I definitely feel that it was money well spent. It was worth it just to fix the speedo and the tunes are a bonus. Link to comment Share on other sites More sharing options...
IASHELBYGT Posted April 19, 2011 Author Report Share Posted April 19, 2011 Dave, If you haven't made the speedo change before leaving for Shelbyfest just be cautious when driving so you don't get a ticket on the way. Don Hi Don, yeah, don't want any tickets coming down. I'll probably plug in the GPS and monitor my speed that way. I have to say it does wake the car up some. I haven't really noticed that big of a difference in the drivabilty of the car, quicker shift points of course, but now 5th gear is actually usable. Link to comment Share on other sites More sharing options...
IASHELBYGT Posted April 19, 2011 Author Report Share Posted April 19, 2011 Let me know if or when you schedule it and I will try to take some I contacted Justin last week and I think I'm going to have him tune the car. I'll let you know when. Link to comment Share on other sites More sharing options...
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